becsys 2 tech manual

Installation and Technical Manual

9487 Dielman Rock Island Ind Dr, St. Louis, MO 63132 www.becs.com

Installation and Technical Manual Rev: H10

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Warnings ............................................................................. 1 Unpacking ........................................................................... 2 General Guidelines ............................................................. 2 Firmware Version ............................................................... 2 Environmental Conditions .................................................. 3 Electrical Specifications ...................................................... 3 Applicable Sensor Operating Ranges.................................. 3 Section A: Mounting the BECSys2 Controller .................. 4

A – 1: Mounting the Controller ...................................... 4 A – 2: Wrapping the Fittings .......................................... 4 A – 3: Assembling the Flow cell .................................... 4 A – 4: ORP and pH Sensor preparations ........................ 4 A – 5: Plumbing the Sample Stream .............................. 4 A – 6: Opening the Sample Stream Valve ..................... 4

Section B: Wiring the BECSys2 Controller ....................... 5 B – 1: Wiring the Unit ................................................... 5 B – 2: Opening the Cover .............................................. 5 B – 3: Removing the Safety Shield ................................ 5 B – 4: Disconnecting the Ribbon Cable ......................... 6 B – 5: Wiring Directly to the Unit ................................. 6 B – 6: Wiring Power ...................................................... 6 B – 7: Supplying Power To The Relays ......................... 6 B – 8: Wiring Relay 1 .................................................... 7

B – 8.1: Line Powered ............................................... 7 B – 8.2: Common Powered ........................................ 7

B – 9: Wiring Relay 2 .................................................... 7 B – 9.1: Line Powered ............................................... 7 B – 9.2 Common Powered .......................................... 7

B – 10: Wiring Relay 3 .................................................. 8 B – 10.1: Line Powered ............................................. 8 B – 10.2: Common Powered ...................................... 8

B – 11: Wiring a Flow Switch ....................................... 8 B – 11.1: Paddlewheel Flow Switch .......................... 8 B – 11.2: Reed Flow Switch ...................................... 9

B – 12: Wiring a Timer .................................................. 9 B – 13: Wiring the Temperature Sensor ........................ 9 B – 14: Wiring a BECSys RCM .................................... 9 B – 15: Fuses .................................................................. 9

Section C: Dip Switch Settings ........................................ 10 C – 1: Choosing pH Feed Direction ............................. 10 C – 2: Choosing On/Off Control or TBP ..................... 10 C – 3: Setting the Failsafe Timer Settings ................... 10 C – 4: Relay 3 Functions .............................................. 11

C – 4.1: Sensor Wash ............................................... 11 C – 4.2: Dual pH Control ......................................... 11 C – 4.3: Alarm Relay ............................................... 11 C – 4.4: Cl/Br Booster ............................................. 11

C – 5: Temperature ...................................................... 11 C – 6: Replacing the Cover .......................................... 11

Section D: Programming the Controller .......................... 12 D – 1: The Program Menu ........................................... 12

D – 1.1: Entering the Program Menu ....................... 12

D – 1.2: Selecting Language .................................... 12 D – 1.3: pH High Alarm Point .................................. 12 D – 1.4: pH Low Alarm Point .................................. 12 D – 1.5: ORP High Alarm Point ............................... 12 D – 1.6: ORP Low Alarm Point ............................... 12 D – 1.7: Temperature High Alarm Point .................. 12 D – 1.8: Temperature Low Alarm Point ................... 13 D – 1.9: ORP/ppm .................................................... 13 D – 1.10: Exiting the Menu ...................................... 13

D – 2: The System Settings Menu ................................ 13 D – 2.1: Entering the System Settings Menu ............ 13 D – 2.2: Recovering Lost Access Codes .................. 13 D – 2.3: Setting the ORP Span ................................. 13 D – 2.4: Setting the pH Span .................................... 13 D – 2.5: Setting the Time Base ................................. 13 D – 2.6: Performing a two-point pH Cal. ................. 14 D – 2.7: Performing a two-point ORP Cal. .............. 14 D – 2.8: Flow disruption feed delay ......................... 14 D – 2.9: ppm Control ................................................ 14 D – 2.10: Booster Failsafe ........................................ 14 D – 2.11: pH Dead Zone .......................................... 14 D – 2.12: Relay Test ................................................. 14 D – 2.13: Setting the Operator Access Code ............ 15 D – 2.14: Setting the Rep Access Code .................... 15 D – 2.15: Exiting the System Settings Menu ............ 15

Section E: Normal Operation ........................................... 16 E – 1: Displaying the Set points ................................... 16 E – 2: Modifying the Set Points ................................... 16

E – 2.1: Modifying the pH Set Point ........................ 16 E – 2.2: Modifying the ORP Set Point ..................... 16 E – 2.3: Modifying the ppm Set Point ...................... 16 E – 2.4: Modifying the Booster Trigger Point .......... 16 E – 2.5: Modifying the Booster End Point ............... 16

E – 3: Single Point Calibration ..................................... 16 E – 3.1: Single Point Calibration - pH ...................... 16 E – 3.2: Single Point Calibration - Temp ................. 17 E – 3.3: Single Point Calibration - ppm .................... 17 E – 3.4: Probe Error .................................................. 17

E – 4: Alarms ................................................................ 17 E – 4.1: pH High/Low alarms................................... 17 E – 4.2: ORP High/Low alarms ................................ 17 E – 4.3: Temperature High/Low alarms ................... 17 E – 4.4: No Flow alarm ............................................ 17 E – 4.5: (x) min Feed Delay ..................................... 17 E – 4.6: Cl/Br Lockout ............................................. 17 E – 4.7: pH FAILSAFE ALM .................................. 17 E – 4.8: Cl/Br FAILSAFE ........................................ 17 E – 4.9: Booster FAILSAFE .................................... 18

E – 5: Resetting a Failsafe Alarm ................................. 18 Section F: Maintenance .................................................... 19

F – 1: Potentiometric Sensors (pH and ORP) ............... 19 F – 1.1: Electrode Cleaning: ..................................... 19

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www.becs.com 9487 Dielman Rock Island Ind Dr, St. Louis, MO 63132


F – 1.2: Long-Term Storage: .................................... 19 Section G: Feed Charts .................................................... 20

G – 1: Spa Feed Charts ................................................ 20 G – 2: Pool Feed Charts ............................................... 21

Section H: Installation Diagrams ..................................... 22 H – 1: Pressure Filter Installation................................. 22 H – 2: Vacuum Filter Installation................................. 22

Section I: Replacement Parts ........................................... 23 Section J: Warranty .......................................................... 24




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Pay particular attention to the following warnings encountered in the pages of the BECSys2 Installation and Technical Manual:

Warning: Various other warning boxes may be found throughout the manual text.

Caution: Various other caution boxes may be found throughout the manual text.




UUnnppaacckkiinngg Your Shipping package should contain these items: A. The BECSys2 Controller B. ORP Sensor C. pH Sensor D. Flow Cell Kit E. Rotary or Reed flow switch F. This manual (not shown) G. Optional Sensors (not shown) A B C D E

GGeenneerraall GGuuiiddeelliinneess Proper installation and use of the BECSys controller depends on the specific needs of the application. Read the manual completely before starting the installation and ensure all guidelines and recommendations are followed. All components should be mounted and the flow cell plumbing installed and pressure tested before wiring the controller. Ensure compliance with all applicable plumbing and electrical codes during the installation as well.

FFiirrmmwwaarree VVeerrssiioonn This manual was written for firmware v1.30. If you received newer firmware but did not receive a copy of the manual covering that version of firmware, please contact your distributor.

Warning: The ORP and pH Sensors are very fragile and must be handled with care. The tips of the probes must be kept wet at all times, requiring the wetting caps to remain in place until they are ready to be

installed. The probes must be stored in temperatures above freezing.

Rotary

Reed

or or or

Caution: The BECSys controller should not be installed where it is accessible to the public.




EEnnvviirroonnmmeennttaall CCoonnddiittiioonnss The BECSys2 is housed in a NEMA 4X (IP65) enclosure. It should not be used in explosive environments. The BECSys2 should be mounted so that adequate ventilation is provided around the enclosure, preventing general environmental specifications from being exceeded (see table below).

Environmental Specifications Specification Rating Storage Temperature -30 to 60 Deg C Ambient Operating Temperature -18 to 40 Deg C Ambient Humidity 95% non condensing maximum humidity

EElleeccttrriiccaall SSppeecciiffiiccaattiioonnss The BECSys2 may be ordered in either a 115VAC model or a 230VAC model. Following are the electrical specifications for each model:

Controller Ratings 115VAC Model 230VAC Model Voltage: 115VAC 60Hz 230VAC 50Hz Phase: Single Single Current: 9.25 Amps Full Load 4.625 Amps Full Load

(¼ Amp – Controller) (⅛ Amp – Controller) (9 Amps – Relay Outputs, 3A X 3) (4.5 Amps – Relay Outputs, 1.5A X 3)

Relay Output Ratings

115VAC Model 230VAC Model Relay 1 (K1) 115VAC (max) – 3 Amps 250VAC (max) – 1.5 Amps Relay 2 (K2) 115VAC (max) – 3 Amps 250VAC (max) – 1.5 Amps Relay 3 (K3) 115VAC (max) – 3 Amps 250VAC (max) – 1.5 Amps

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Standard Sensors pH 0.0 to 14.0 pH ORP -1500mV to 1500mV Reed Flow Switch Switch Point (On): 2.0 gpm Rotary Flow Switch Switch Point (On): 1.5 gpm

Optional Sensors Temperature 32°F to 212°F (0°C to 100°C)




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A – 1: Mounting the Controller The BECSys2 Controller and flow cell are mounted separately. The BECSys2 enclosure should be mounted to the wall with four anchor bolts, one installed in each corner of the enclosure base. To mount the BECSys2 properly, please use the included mounting template and hardware. Drill the holes for the anchors using a 3/16” drill bit. Install the anchors in the wall. Remove the lid from the unit and place the included screws in the four corners of the box. Attach the screws into the anchors. The BECSys2 and flow cell should be mounted in a location that is free from chemical fumes and excessive heat, isolated from electrical interference, and near a power source protected by a ground fault interrupter. The BECSys2 has a NEMA4 weather resistant enclosure but should still be protected if mounted outdoors.

A – 2: Wrapping the Fittings If you are assembling a flow cell, first open the bag of flow cell fittings and wrap each fitting two times around clockwise with Teflon tape.

A – 3: Assembling the Flow cell Assemble the flow cell as shown below:

When installing the pH or ORP sensor, remove the wetting cap, then remove any existing Teflon tape from the sensor threads. Re-wrap the threads with new Teflon tape. Rinse the sensor tip in de-ionized water and install as shown.

A – 4: ORP and pH Sensor preparations The pH and ORP sensors are shipped with a wetting cap covering the measuring end. This cap contains a solution of pH 4 buffer saturated with potassium chloride (KCl). Gently remove the wetting cap by unscrewing the sensor and sliding the cap off of the sensor body.

It is a good idea to save the wetting cap and the box that the sensor came in for future long-term storage.

During shipping, the air space inside the pH glass may have moved into the bulb. Grasp the sensor near the cable end and gently swing it through an arc to force the internal electrolyte into the pH bulb. Rinse the measuring ends of potentiometric sensors with distilled water before installation into a flow-cell.

A – 5: Plumbing the Sample Stream Install the sample stream; ½-inch tubing is recommended for sample stream pickup and return. Make sure that you tap the supply off the discharge side of the recirculation pump, upstream of the chemical injection points. The sample should be filtered water. Connect the sample stream pickup line to the flow cell and run the sample stream return line from the flow cell to the suction side of the main recirculation pump. Install ½-inch ball valves to allow isolation of the sample lines. Install the pH and ORP sensors last. NOTE: As soon as you install the sensors, move immediately on to the next step to ensure that they always stay wet.

A – 6: Opening the Sample Stream Valve Open the sample stream valve and check for leaks. Note the reading on the compound pressure gauge and make sure that it shows a positive and steady pressure. The sample stream should be about 2-20 psi at the flow cell. If this is not the case, then adjust the valves or relocate the point at which the sample stream is connected to the recirculation system. Negative pressure will destroy the sensors. Once you have a positive and steady pressure, open the wet test valve and make sure that it generates a vigorous stream.

Warning: These sensors should be hand-tightened only. Tools are not necessary for

installing the pH or ORP sensor and will damage the sensor housing.




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B – 1: Wiring the Unit

There are several ways that you can wire the relays and power to the unit. The easiest is to use the cords already installed in the unit. Plug the AC Cord into a GFCI outlet (only for low voltage 110VAC-120VAC applications) and connect the chemical feeders to the female power cords (pigtails). The pigtails are labeled with the below warning tags. Be sure to connect the correct pigtail to the correct chemical feeder. You must still remove the cover to install the Temperature Sensor and Flow Switch.

The second way is to discard the pre-installed cords and wire the unit directly.

B – 2: Opening the Cover In order to wire the unit directly or attach the Temperature Sensor and the Flow Switch, you must open the cover. Remove the cover by loosening the four screws at the corners with a screwdriver as shown. NOTE: The screws do not need to be totally removed, but only loosened. Once the screws are loosened, carefully lift the top cover off of the unit. The cover will still be connected to the base by the ribbon cable. Set the moisture absorbent packet found inside aside for now.

B – 3: Removing the Safety Shield To remove the shield, remove the four screws using a Philips screwdriver. Gently lift the cover straight up and set it to the side.




B – 4: Disconnecting the Ribbon Cable We recommend that you disconnect the ribbon cable by spreading the two holders at the end of the cable attached to the cover as shown, unplugging the cable and removing the cover. NOTE: Be sure to store the cover in a safe, dry place while you wire and set up the unit.

B – 5: Wiring Directly to the Unit To wire the unit directly, you must remove the pigtails already installed. You may use the two ½-inch holes in the casing to enable you to easily run wires to Terminal Block 1 inside the base of the unit. NOTE: There are Terminal Blocks labeled TB1 and TB2 in both the cover and base of the unit and they serve different functions. Use the ½-inch cord grips provided and whatever holes are convenient, but when you are all finished wiring the unit, be sure to plug any unused holes with a ½-inch NEMA 4x plug.

B – 6: Wiring Power The main power input should be wired to TB1. The black wire goes into the position labeled Line, the white wire goes into the position labeled Neutral, and the green wire goes into the position labeled Earth Ground.

NOTE: The black and white wires are colored brown and blue outside North America.

B – 7: Supplying Power To The Relays

All three of the relays may be configured to be powered from either the L (Line) connection which the controller itself is powered from, or their individual C (Common) connections. As shipped from the factory, all three relays are configured to be powered from the L (Line) power connection. If you wish to use the C (Common) input instead (commonly used to interlock feeds with the recirculation pump), you will need to move the black hat jumpers located above TB2 to their upper position for the desired relays.

Warning: Make sure power is disconnected while you wire the unit

Warning: Unless specified at time of order, controllers are configured for 115VAC and

should not be used at 230VAC. Always contact BECS Technology, Inc. before attempting to

reconfigure a controller’s input supply voltage.




B – 8: Wiring Relay 1 Relay 1 controls pH. You can configure the relay to be powered from the same Line voltage as the controller or from its own separate voltage input.

B – 8.1: Line Powered

Make sure the hat jumper is in the lower position “L”. The black wire goes into the position labeled pH Feed, the white wire goes into the Neutral position next to that, and the green wire goes into Earth Ground position next to that. Nothing should be connected to the pH COM terminal.


B – 8.2: Common Powered

Connect the incoming power to the pH COM terminal (the red wire shown below) and move the hat jumper for the pH relay to the upper position “C”. The black wire goes into the position labeled pH Feed. Leave the Neutral and Earth Ground terminals unconnected inside the controller. The Neutral and Earth Grounds from the feeder must be connected to the Neutral and Earth Ground of the power source supplying this relay.

B – 9: Wiring Relay 2 Relay 2 controls ORP. You can configure the relay to be powered from the same Line voltage as the controller or from its own separate voltage input.

B – 9.1: Line Powered

Make sure the hat jumper is in the lower position “L”. The black wire goes into the position labeled Cl/Br Feed, the white wire goes into the Neutral position next to that, and the green wire goes into the Earth Ground position next to that. Nothing should be connected to the Cl/Br COM terminal.


B – 9.2 Common Powered

Connect the incoming power to the Cl/Br COM terminal (the red wire shown below) and move the hat jumper for the Cl/Br relay to the upper position “C”. The black wire goes into the position labeled Cl/Br Feed. Leave the Neutral and Earth Ground terminals unconnected inside the controller. The Neutral and Earth Grounds from the feeder must be connected to the Neutral and Earth Ground of the power source supplying this relay.




B – 10: Wiring Relay 3

Relay 3 may be used for Dual pH control, Alarms, Cl/Br Booster or the optional Sensor Wash (Refer to section C – 1 on how to configure this). You can configure the relay to be powered from the same Line voltage as the controller or from its own separate voltage input. B – 10.1: Line Powered

Make sure the hat jumper is in the lower position “L”. The black wire goes into the position labeled Auxiliary, the white wire goes into the Neutral position next to that, and the green wire goes into Earth Ground position next to that. Nothing should be connected to the AUX COM terminal.


B – 10.2: Common Powered

Connect the incoming power to the AUX COM terminal (the red wire shown below) and move the hat jumper for the Aux relay to the upper position “C”. The black wire goes into the position labeled Auxiliary. Leave the Neutral and Earth Ground terminals unconnected inside the controller. The Neutral and Earth Grounds from the feeder/device must be connected to the Neutral and Earth Ground of the power source supplying this relay.

B – 11: Wiring a Flow Switch A Flow Switch must be used in the operation of a BECSys2 Controller. A paddlewheel flow switch or reed flow switch is incorporated into the flow cell to disable chemical feed in the event of loss of flow. B – 11.1: Paddlewheel Flow Switch

Connect the wires to CN5 in the cover of the unit. The black wire goes to Ground, the white wire goes to Flow, and the red wire goes to +12V. With the paddlewheel flow switch, whenever the wheel spins, the green “flow” light on the flow switch will be on.

Warning: NEVER BYPASS FLOW SWITCH CONNECTIONS

The Flow Switch is a critical safety device which prevents uncontrolled chemical feed.

Uncontrolled feeding of chemicals can result in injury or death.

Warning: Failure to incorporate a Flow Switch and Flowcell into the sample

Stream of your BECSys chemical controller can result in injury or death to swimmers in or

around the pool if the recirculation pump should fail or shut down.

Warning: A check valve is must be installed with the paddlewheel flow switch to prevent backflow when the system is shut down. If a

check valve is not installed, backflow could give the controller a false reading of flow and continue to pump chemicals into the pool.




B – 11.2: Reed Flow Switch

The reed flow switch is a (2) two-wire switch. Connect the wires to CN5 in the cover of the unit. The black wire goes to the terminal labeled Flow, and the red wire goes to the terminal labeled + 12. NOTE: Unlike the paddlewheel flow switch, the reed flow switch is a directional switch. Make sure it is installed with the flow arrow in the proper direction. No check valve is required with the reed flow switch.

B – 12: Wiring a Timer One advantage of the BECSys2 Controller is that the unit can be used with a timer to control the feeder and still not lose power to the sensor. Most controllers work with a timer by cutting all power, which then means that the sensor goes through an erratic period (up to two minutes) every time power is restored. With BECS units, the sensor continues to function even when the timer cuts power to the feeder so there is never a loss in accuracy. If you have decided to use a timer to interrupt the chemical feed, wire the timer in parallel with the flow lead of the flow switch.

Timer

Flow Switch

B – 13: Wiring the Temperature Sensor

Connect the wires to CN5 in the cover of the unit. The white wire goes to the terminal labeled "+", and the black wire goes to the terminal labeled "-".

B – 14: Wiring a BECSys RCM If you have ordered a BECSys RCM, or the site has a BECSys RCM already installed, you may connect your BECSys2 to it. The BECSys RCM provides data logging and remote access of up to 32 BECSys2 controllers per site. Recommended wire: 22 gauge shielded twisted pair (1 pair: 2 conductors + shield). For outdoor use, use NEC type PLTC. For indoor use, use NEC type CMG general, CMR riser (through floors), or CMP plenum as required by the local wiring code. Connect the wires to CN4 in the cover of the unit. There are two RS485 terminal blocks to allow daisy chaining of units. It doesn’t matter which connector you use – whichever is easiest. For each unit, wire as follows:

From BECSys2 To BECSys RCM A A B B

SH Shield

B – 15: Fuses

115VAC Model (F4):

¼ Amp 250V Time Lag Fuse (¼” x 1¼”) 230VAC Model (F4):

1/8 Amp 250V Time Lag Fuse (¼” x 1¼”) Relay Fuses (F1 – F3):

3 Amp 250V Time Lag Fuse (¼” x 1¼”) RS485 Fuse (F1 CPU Board):

¼ Amp 250V Time Lag Microfuse (5.08mm)




SSeeccttiioonn CC:: DDiipp SSwwiittcchh SSeettttiinnggssThe BECSys2 controller comes preprogrammed for pH feed down (acid, CO2) to feed in Time Based Proportional mode. These factory settings are appropriate for most systems. If you would like to change these settings, you must change the internal dipswitches. To change the dipswitches, first unplug the BECSys2 power cord and open the cover of the unit (as explained in section B - 2). The photograph shows the dipswitch bank (SW5) in the cover of the unit.

The following chart indicates the positions and functions of the switches. Dip Switch OFF ON

1 pH Feed Down pH Feed Up 2 pH TBP Control pH On/Off Control 3 ORP TBP Control ORP On/Off Control 4 Failsafe Timer* 5 Failsafe Timer* 6 Relay 3 Function** 7 Relay 3 Function** 8 Temperature °C Temperature °F

*See Section C - 3 ** See Section C - 4 C – 1: Choosing pH Feed Direction

Relay 1 controls pH. It can be set to feed down (acid) for use with chemicals such as carbon dioxide or muriatic acid, or to feed up (base) for use with chemicals such as caustic soda or soda ash. (If you are using Dual pH then Relay#1 is set as Feed Up and Relay#3 is set as Feed Down).

C – 2: Choosing On/Off Control or TBP In general, if you are using a motor driven chemical feeder then you should choose the On/Off option. If you are using a solenoid driven or pulsed diaphragm chemical feeder (such as Pulsatron, most LMI models or most Prominent Models), you should choose the TBP (Time-Based Proportional) option. This feature helps to hold a set point and to minimize over-shoot by making a standard feeder mimic the action of more sophisticated modulating feeders. If you choose the On/Off option and are feeding up then the controller will activate the chemical feeder whenever the pH or ORP falls below the set point and continue to feed until the pH or ORP meets or rises above the set point at which point it will stop. If you choose the TBP option the controller will activate the chemical feeder whenever the pH or ORP falls below the set point and will feed for a fraction of one minute depending on the amount of deviation from set point. The balance of each minute the feeder will be paused. The smaller the deviation, the less time the feeder is ON each minute. The feeder will continue this feed and pause cycle until the BECSys2 achieves the set point.

C – 3: Setting the Failsafe Timer Settings The most common failures of automated chemical feed systems are depletion of the chemical supply and/or chemical feeder failure. Both problems result in the controller being unable to reach set point in a reasonable period of time. The Failsafe Timer sets the maximum length of time the feeder can run. If the feeder has been trying to achieve set point without success for the selected time, the controller will cut power to the feeder, flash the feed light on the face panel and display a message to alert the operator. If in TBP Pause mode, the controller will reset. A Failsafe Alarm can be reset by pressing and holding the Up and Down Arrows for 2 seconds. To select the Failsafe Timer interval or disable the Failsafe Timer alarm, move switches 4 and 5 to the positions shown in the following chart. Dip Switch 4 Dip Switch 5 Time (Hours)

Off Off 1 Off On 2 On Off 4 On On Disabled




C – 4: Relay 3 Functions Relay 3 can be used for several different functions. To select the function of Relay 3 move switches 6 and 7 to the positions shown in the following chart: Dip Switch 6 Dip Switch 7 Function Off Off Sensor Wash Off On Dual pH Control On Off Alarm On On Cl/Br Booster NOTE: You will only have an Alarm Relay when the dip switches are set accordingly. The Alarm LED will still flash when the controller is in Alarm.

C – 4.1: Sensor Wash

Setting Dip Switches 6 and 7 to the off position configures Relay 3 for Sensor Wash. The Sensor Wash will begin 12 hours from power-up, run for approximately 2 minutes, and then come on again every 24 hours after that running for a duration of 2 minutes.

C – 4.2: Dual pH Control Setting Dip Switch 6 to the off position and Dip Switch 7 to the on position configures Relay 3 for pH feed down. You must configure Relay 1 for Feed Up (Dip Switch 1 On).

C – 4.3: Alarm Relay With Dip Switch 6 set to the on position and Dip Switch 7 set to the off position, Relay 3 is configured for an alarm relay. The Alarm Relay will turn on any time there is an alarm state (No Flow, pH High, etc). Alarm points are set in the Programming Section of this manual (Section D).

C – 4.4: Cl/Br Booster Setting Dip Switches 6 and 7 to the on position configures Relay 3 for a sanitizer booster. When the ORP level drops to the Cl/Br Booster trigger set point, Relay 3 will activate an alternate sanitizer feed until the ORP reaches the Cl/Br Booster set point.

C – 5: Temperature With Dip Switch 8 On, temperature is displayed in Fahrenheit. With the Dip Switch Off, temperature is displayed in Celsius. NOTE: If the high and low temperature alarms are set to the same value, temperature will not be displayed.

C – 6: Replacing the Cover Now it is time to put the cover back on the unit. But before you do, give your wiring one last check and make sure that you reconnect the ribbon cable (as shown) if you disconnected it earlier. Line up the small holes in the cable end with the pins attached to the cover and gently press the cable into place. Make sure the two holders attached to the cover close back over the cable end to hold it firmly in place.

Replace the safety shield using the screws that were removed. Be sure to align the holes with the fuse holders. You may have to adjust the fuse holders slightly to align the shield properly. Finally, place the cover back on the unit and tighten the four screws at the corners to secure it in place.




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D – 1: The Program Menu D – 1.1: Entering the Program Menu

To enter the program menu, press and hold both the Cal and Up key for three seconds. At the end of three seconds, one of two things will happen.

If the operator and rep access codes have been set, the unit will prompt you for your access code. Use the up and down arrow to change the current digit, and press the Cal button to go to the next digit. Once all three digits are set, the controller will either display the first menu item or display "Access Denied" if the code you entered didn't match one of the access codes.

When the LCD screen clears, release the keys and “Program” should appear on the display. Press the Up key to enter the menu and press the Down key to exit.

Once in the program menu, use the Up or down arrows to scroll to the setting you wish to change. Press the Cal key to select the setting, then use the Up or down arrows to modify the value. Press the Cal key again to enter the new value and return to the menu. To exit the program menu, scroll to the “Exit menu” option and depress the Cal key.

NOTE: After five minutes of no programming activity, the Time-Out feature will automatically exit the programming menu.

D – 1.2: Selecting Language The BECSys2 can be programmed to display in three different languages. Once you have entered the program menu the screen will display Language ENG, signifying that the display is currently set to English. Pressing the Cal key will display a question mark (?) before the language. Use the up and down buttons to select between ENG (English), ESP (Spanish), and FRA (French), and press the Cal key to select the language you would like to use for the display.

D – 1.3: pH High Alarm Point Pressing the down arrow displays pH High followed by the current pH high alarm point. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value.

D – 1.4: pH Low Alarm Point

Pressing the down arrow displays pH Low followed by the current pH low alarm point. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value.

D – 1.5: ORP High Alarm Point

Pressing the down arrow displays ORP High followed by the current ORP high alarm point. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value.

D – 1.6: ORP Low Alarm Point

Pressing the down arrow displays ORP Low followed by the current ORP low alarm point. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value.

D – 1.7: Temperature High Alarm Point

Pressing the down arrow displays Temp High followed by the current temperature high alarm point. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value.




D – 1.8: Temperature Low Alarm Point Pressing the down arrow displays Temp Low followed by the current temperature low alarm point. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value.

D – 1.9: ORP/ppm Pressing the down arrow displays ORP/ppm selection. This option selects whether to use an ORP set point or a ppm set point for the main Cl/Br feed control. It is set to ORP by default. To change this setting, press the Cal key, use the up and down arrows to change between ORP and ppm, then press the Cal key again to save the new value. This option is only available if configured to allow ppm control.

D – 1.10: Exiting the Menu

Pressing the down arrow displays Exit menu. Pressing the Cal key exits the programming menu.

D – 2: The System Settings Menu D – 2.1: Entering the System Settings Menu

To enter the System Settings Menu, hold the Cal, Up, and Down keys at the same time for 3 seconds. When the LCD screen clears, release the keys. If the Rep code has been set, you will be prompted to enter in the Rep code, otherwise the first menu item and its current setting should appear. For help entering your access code, see D - 1.1: Entering the Program Menu.

D – 2.2: Recovering Lost Access Codes If the Rep or Operator access codes are forgotten, the codes can be recovered by the following procedure:

While in the Normal Display, press and hold the Cal and Set Point keys. Write down the encrypted value displayed. The Rep code is preceded by the letter “A” and the Operator code is preceded by the letter “D”. BECS Technology can be contacted for decryption of this code, providing the original access code.

D – 2.3: Setting the ORP Span Once you have entered the System Settings Menu, you will see ORP Span and its current setting on the LCD screen. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value. This option is only available if configured to use TBP control. NOTE: It is recommended to leave the ORP Span at the factory setting unless otherwise instructed by a factory representative.

D – 2.4: Setting the pH Span Pressing the down arrow displays pH Scan and its current setting. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value. This option is only available if configured to use TBP control. NOTE: It is recommended to leave the pH Span at the factory setting unless otherwise instructed by a factory representative.

D – 2.5: Setting the Time Base Pressing the down arrow displays Time Base and its current setting. To change this setting, press the Cal key, use the up or down arrows to input the value you would like, then press the Cal key again to save the new value. This option is only available if configured to use TBP control. NOTE: It is recommended to leave the Time Base at the factory setting unless otherwise instructed by a factory representative.




D – 2.6: Performing a two-point pH Cal. Pressing the down arrow displays

. To perform a two-point calibration of the pH input: 1) Connect a signal generator, for example the

BECSysHRC-1, to both the pH and ORP inputs and press the Cal key.

2) will now be displayed. Set the signal generator to 2.00 and press the Cal button.

3) will now be displayed. Set the signal generator to 12.24 and press the Cal button.

Calibration is complete. NOTE: It is recommended to leave the pH 2pt Cal at the factory setting unless otherwise instructed by a factory representative.

D – 2.7: Performing a two-point ORP Cal.

Pressing the down arrow displays

. To perform a two-point calibration of the ORP input: 1) Connect a signal generator, for example the

BECSysHRC-1, to both the ORP and pH inputs and press the Cal key.

2) will now be displayed. Set the signal generator to 0 and press the Cal button.

3) will now be displayed. Set the signal generator to 1024 and press the Cal button.

Calibration is complete. NOTE: It is recommended to leave the ORP 2pt Cal at the factory setting unless otherwise instructed by a factory representative.

D – 2.8: Flow disruption feed delay Pressing the down arrow displays Feed Delay 10. When flow is disrupted and then restored, activation of feeds will be delayed for the specified time (in minutes). The valid range is 0 (disabled) to 60 minutes. Press the Cal key and the value will start to flash. Use the up and down keys to reach the desired number, and then press the Cal key again to set the value.

D – 2.9: ppm Control Pressing the down arrow displays ppm cntl. With this set to yes, the operator is allowed to choose whether to control using a ppm set point or an ORP set point. Setting this to no will disable the use of a ppm set point. To change this setting, press the Cal key, then use the Up and Down arrows to turn PPM control on or off.

D – 2.10: Booster Failsafe

Pressing the down arrow displays the Booster Failsafe timer and its current value. This value can be changed to any value between 0 and 240 minutes. Setting the value to 0 will disable the failsafe timer. To change the Booster Failsafe timer, press the Cal key and the first digit will start to flash. Use the up and down arrow keys to reach the desired number. If the first digit is set to 3, the maximum value (240) will be displayed. Press the Cal key to select the next digit. Repeat this operation until all three digits have been set.

D – 2.11: pH Dead Zone

The pH Dead Zone is used when the controller is configured for Dual pH control. This value is how far away from the setpoint the pH must change before the feed direction changes.

D – 2.12: Relay Test Select Relay Test from the menu and then select which relay to turn on by using the arrow keys. Once the relay has been selected, press the Cal key to start the relay test. The relay will turn on for two minutes. To cancel the test, press the down arrow key and then the cal key.




D – 2.13: Setting the Operator Access Code Pressing the down arrow displays Op Code and its current value. To change the access code for the facility operator, press the Cal key and the first digit will start to flash. Use the up and down keys to reach the desired number, then press the Cal key to select the next digit. Repeat this operation until all three digits have been set. NOTE: Leaving the Operator access code OR Rep access code at 000 will allow anyone to calibrate, change set points settings on the BECSys2 controller. By assigning an operator code AND a rep code, users will be prompted to enter an access code before being able to calibrate or change set point settings on the BECSys2 controller.

D – 2.14: Setting the Rep Access Code Pressing the down arrow displays Rep Code and its current value. To change the access code for the factory representative, press the Cal key and the first digit will start to flash. Use the up and

down keys to reach the desired number, then press the Cal key to select the next digit. Repeat this operation until all three digits have been set. NOTE: It is strongly recommended that a rep access code be entered. When the code is entered, anyone trying to access The System Settings Menu will be prompted to enter an access code before they are able to continue. NOTE: If your access code has been lost, see section D – 2.2 for instructions on how to recover it.

D – 2.15: Exiting the System Settings Menu

Pressing the down arrow will display Exit Menu. Press the Cal key to exit The System Setting Menu.




SSeeccttiioonn EE:: NNoorrmmaall OOppeerraattiioonn

E – 1: Displaying the Set points To display the Set Points, press the Set point key briefly. The set points will be displayed for three seconds.

E – 2: Modifying the Set Points To modify the set points press the Set point key for three seconds. If the operator and rep access codes have been set, the unit will prompt you for your access code, otherwise the display will change to pH SetPt followed by the current pH Set point. For help entering your access code, see D - 1.1: Entering the Program Menu.

E – 2.1: Modifying the pH Set Point

To change this setting, use the Up or Down Arrows to input the new value, then press the Set point key again to save it. To skip entering a new value, press the Set Point key.

E – 2.2: Modifying the ORP Set Point If the system is configured to control using an ORP set point, the screen will display ORP SetPt followed by the current ORP Set point. To change this setting, use the Up or Down Arrows to input the new value, then press the Set point key again to save it. To skip entering a new value, press the Set Point key.

E – 2.3: Modifying the ppm Set Point

If the system is configured to control using a ppm set point, the screen will display ppm SetPt and the current ppm set point on the LED bar graph will be flashing. To change this setting, use the UP or Down Arrows to adjust this value shown on the LED bar graph and press the Set point key again to save the new value. To skip entering a new value, press the Set Point key.

E – 2.4: Modifying the Booster Trigger Point If relay 3 is configured for Cl/Br Booster control, the screen will display boostr trig followed by the current trigger point. To change this setting, use the Up or Down Arrows to input the new value, then press the Set point key again to save it. To skip entering a new value, press the Set Point key. NOTE: This menu is only shown if you have the Cl/Br Booster feed is enabled.

E – 2.5: Modifying the Booster End Point If relay 3 is configured for Cl/Br Booster control, the screen will display booster end followed by the current end set point. To change this setting, use the Up or Down Arrows to input the new value, then press the Set point key again to save it. To skip entering a new value, press the Set Point key. NOTE: This menu is only shown if you have the Cl/Br Booster feed is enabled.

E – 3: Single Point Calibration To enter the calibration menu, press and hold the Cal key for three seconds. If the operator and rep access codes have been set, the unit will prompt you for your access code, otherwise the display clears followed by Cal pH and the current pH reading. For help entering your access code, see D - 1.1: Entering the Program Menu.

E – 3.1: Single Point Calibration - pH

The display should now read Cal pH followed by the current pH reading. Use the arrow keys to adjust the displayed value to match your test kit reading, and then press the Cal key to save it. To skip entering a new value, press the Cal key.




E – 3.2: Single Point Calibration - Temp The display should now show Cal Temp followed by the current Temp calibration value. Once again, use the arrow keys to adjust this value to the real value then press the Cal key to enter it. To skip entering a new value, press the Cal key.

E – 3.3: Single Point Calibration - ppm If ppm is available on your unit, the display should read Cal ppm and the ppm LED's will be flashing. Use the arrow keys to adjust the LED bar graph to match your test kit reading, and then press the Cal key to save it. To skip entering a new value, press the Cal key.

E – 3.4: Probe Error

If during a single point calibration you receive the error message “Probe Error!” replace the probe.

E – 4: Alarms During normal operation, the following alarms may be displayed. Some alarms will not be available depending on the system's configuration. E – 4.1: pH High/Low alarms

This is displayed when the pH input has risen above/fallen below the pH high/low alarm point. These alarms will also trigger the Cl/Br Lockout alarm.

E – 4.2: ORP High/Low alarms

This is displayed when the ORP input has risen above/fallen below the ORP high/low alarm point.

E – 4.3: Temperature High/Low alarms

This is displayed when the Temperature input has risen above/fallen below the Temperature high/low alarm point.

E – 4.4: No Flow alarm

Displayed when the flow input indicates the flow has stopped. This alarm disables all chemical feeds.

E – 4.5: (x) min Feed Delay

When flow is disrupted and then restored, the controller will delay restarting feeds for a programmed duration in order to prevent operating feeds based on readings from stagnant water. (x) = the number of minutes remaining before feeds are allowed to start (e.g. 5 min Feed Delay).

E – 4.6: Cl/Br Lockout

This is triggered whenever there is a pH high or low alarm. This message indicates that the Cl/Br feed (relay 2) and the optional Cl/Br Booster (relay 3) are disabled in order to prevent the Cl/Br feeds from driving the pH even further out of range.

E – 4.7: pH FAILSAFE ALM

This is displayed when the active pH feed (feed up or feed down) attempted to feed continuously for the selected failsafe duration. The active pH feed is disabled until one of the following conditions occurs: 1) The pH input reaches the programmed set

point. 2) Disruption of flow 3) User manually resets the failsafe.

E – 4.8: Cl/Br FAILSAFE

This is displayed when the Cl/Br feed attempted to feed continuously for the selected failsafe duration. The Cl/Br feed is disabled until one of the following conditions occurs: 1) The ORP/ppm input reaches the

programmed set point. 2) Disruption of flow 3) User manually resets the failsafe.




E – 4.9: Booster FAILSAFE

This is displayed when the optional Cl/Br Booster feed attempted to feed continuously for the selected failsafe duration. The Cl/Br Booster feed is disabled until one of the following conditions occurs: 1) The ORP input reaches the Cl/Br Booster set

point. 2) Disruption of flow 3) User manually resets the failsafe.

E – 5: Resetting a Failsafe Alarm

To reset a failsafe alarm, press and hold the Up and down arrow keys momentarily.




SSeeccttiioonn FF:: MMaaiinntteennaannccee The BECSys2 requires no maintenance other than a periodic calibration check and sensor cleaning. F – 1: Potentiometric Sensors (pH and ORP)

F – 1.1: Electrode Cleaning: Slow response time and large offsets may indicate the electrode has become coated. The nature of the coating will dictate the type of cleaning technique that should be used. Soft coatings, like bacterial films, are best removed

using a squirt bottle or the water jet from a faucet. If this is not successful, then gently wipe with a soft wet cloth.

For a more severe coating, first try a strong detergent (something similar to Dawn liquid detergent) and warm water, using a soft brush (like a toothbrush). Isopropyl alcohol on a Q-tip is another good choice. Rinse the measuring end in distilled water before reinstallation.

Greasy and oily coatings are best removed with a detergent solution or a solvent that will not attack the sensor body. Methanol and isopropyl alcohol are good choices for solvents. Acetone, MEK, THF, or trichloroethane will irreparably harm the electrode.

Hard coatings, like calcium or lime scale, are best removed with a solvent appropriate for the particular coating. A 5% solution of hydrochloric acid (HCl) would be a good choice for calcium scale. If unsure of the proper solvent to remove a hard mineral coating, then alternate between a 5% hydrochloric acid and a 4% sodium hydroxide (NaOH) for 10 minutes each. After treating the electrode with these strong acids or bases, rinse the electrode with water and soak it in a pH 4 buffer for at least 1/2 hour.

The platinum tip of an ORP sensor can be cleaned with an abrasive as a last resort. Gently scour the platinum with a 600 grit wet emery cloth, or preferably, a 1-3 micron alumina polishing powder.

F – 1.2: Long-Term Storage: Save the wetting cap that came with the sensor for long-term storage. After removing the sensor from the flow-cell, clean it as in routine maintenance, and then store it in the wetting cap using a pH 4 buffer saturated with potassium chloride (KCl). The potassium chloride will prevent electrolyte from leaching out of the sensors reference cell. The wetting cap only needs to be half full. If a number of sites are going to be serviced, for example, at the end of a season, then it might be a good idea to carry a pint of 4.0/KCl storage solution.

Warning: You may lightly blot the water On a pH sensor tip on a paper towel, but never vigorously rub or wipe the pH bulb because this may scratch the delicate outer layer on the pH

glass impairing its response.




SSeeccttiioonn GG:: FFeeeedd CChhaarrttss Use the charts on the following pages to determine the correct amount of chemical to add to spa or pool water to achieve desired conditions. Choose which chart to use by the chemical indicated and the number of gallons to be treated. G – 1: Spa Feed Charts

Quantity of Muriatic Acid Needed to Lower Total Alkalinity

Desired Decrease In ppm

Gallons in Spa

100 150 250 500 750 1000 10 1.25 ts 2.00 ts 1.00 tb 2.00 tb 3.00 tp 0.25 cp 20 2.50 ts 4.00 ts 2.00 tb 0.25 cp 0.33 cp 0.50 cp 30 1.25 tb 2.00 tb 3.00 tb 0.33 cp 0.67 cp 0.75 cp 40 5.00 ts 2.50 tb 0.25 cp 0.50 cp 0.75 cp 1.00 cp 50 2.00 tb 3.00 tb 5.00 tb 0.67 cp 1.00 cp 1.33 cp 60 2.50 tb 0.25 cp 0.33 cp 0.75 cp 1.00 cp 1.50 cp 70 3.00 tb 0.25 cp 0.50 cp 1.00 cp 1.33 cp 1.75 cp 80 3.50 tb 0.33 cp 0.50 cp 1.00 cp 1.50 cp 2.00 cp 90 0.25 cp 0.33 cp 0.67 cp 1.00 cp 1.67 cp 2.33 cp 100 0.25 cp 0.50 cp 0.67 cp 1.33 cp 2.00 cp 2.50 cp

ts = teaspoon tb = tablespoon cp = one cup (8 fl oz)

Quantity of Sodium Bisulfate Needed to Lower Total Alkalinity

Desired Decrease In ppm

Gallons in Spa

100 150 250 500 750 1000 10 1.50 ts 2.50 ts 1.00 tb 2.50 tb 0.25 cp 0.33 cp 20 1.00 tb 1.50 tb 2.50 tb 0.33 cp 0.50 cp 0.67 cp 30 1.50 tb 2.50 tb 0.25 cp 0.50 cp 0.75 cp 1.00 cp 40 2.00 tb 3.00 tb 0.33 cp 0.67 cp 1.00 cp 1.25 cp 50 2.50 tb 0.25 cp 0.50 cp 0.75 cp 1.25 cp 1.50 cp 60 3.00 tb 4.50 tb 0.50 cp 1.00 cp 1.50 cp 2.00 cp 70 0.25 cp 0.33 cp 0.50 cp 1.00 cp 1.67 cp 2.25 cp 80 0.25 cp 0.33 cp 0.67 cp 1.25 cp 2.00 cp 2.50 cp 90 0.33 cp 0.50 cp 0.75 cp 1.50 cp 2.25 cp 3.00 cp 100 0.33 cp 0.50 cp 0.75 cp 1.67 cp 2.50 cp 3.25 cp


Quantity of Bicarbonate of Soda Needed to Raise Total Alkalinity

Desired Increase In ppm

Gallons in Spa

100 150 250 500 750 1000 10 1.25 ts 2.00 ts 4.00 ts 2.50 tb 0.25 cp 0.33 cp 20 1.00 tb 1.50 tb 2.50 tb 5.00 tb 0.50 cp 0.50 cp 30 1.50 tb 2.00 tb 3.50 tb 0.50 cp 0.67 cp 1.00 cp 40 2.00 tb 3.00 tb 0.33 cp 0.50 cp 1.00 cp 1.00 cp 50 2.50 tb 3.50 tb 6.00 tb 0.75 cp 1.00 cp 1.50 cp 60 3.00 tb 0.25 tb 0.50 cp 1.00 cp 1.33 cp 1.75 cp 70 3.50 tp 0.35 cp 0.50 cp 1.00 cp 1.50 cp 2.00 cp 80 0.25 cp 0.33 cp 0.50 cp 1.25 cp 1.75 cp 2.50 cp 90 0.33 cp 0.50 cp 0.67 cp 1.33 cp 2.05 cp 2.75 cp 100 0.33 cp 0.50 cp 0.75 cp 1.50 cp 2.25 cp 3.00 cp


Quantity of Calcium Chloride Needed to Increase Calcium Hardness


Gallons in Spa

100 150 250 500 750 1000 10 1.25 ts 2.00 ts 1.00 tb 2.00 tb 3.00 tb 0.25 cp 20 2.50 ts 4.00 ts 2.00 tb 0.25 cp 0.33 cp 0.50 cp 30 1.25 tb 2.00 tb 3.00 tb 0.33 cp 0.67 cp 0.75 cp 40 4.00 ts 2.50 tb 0.25 cp 0.50 cp 0.75 cp 1.00 cp 50 2.00 tb 3.00 tb 5.00 tb 0.67 cp 1.00 cp 1.33 cp 60 2.50 tb 0.25 cp 0.33 cp 0.75 cp 1.00 cp 1.50 cp 70 3.00 tp 0.25 cp 0.50 cp 1.00 cp 1.33 cp 1.75 cp 80 3.50 tp 0.25 cp 0.50 cp 1.00 cp 1.50 cp 2.00 cp 90 0.25 cp 0.33 cp 0.33 cp 1.00 cp 1.67 cp 2.33 cp 100 0.25 cp 0.50 cp 0.67 cp 1.33 cp 2.00 cp 2.50 cp


Quantity of Chlorine Compound Needed to Increase 1 ppm

Percent Chlorine In

Product

Gallons in Spa

100 150 250 500 750 1000 5 0.50 tb 2.00 ts 1.25 tb 2.50 tb 0.25 cp 0.33 cp 10 0.25 tb 1.00 ts 2.00 ts 1.25 tb 2.00 tb 2.50 tb 12 0.25 tb 1.00 ts 0.50 tb 1.00 tb 1.50 tb 2.00 tb 30 0.25 tb 0.33 ts 0.75 ts 1.25 ts 2.00 ts 2.50 ts 40 0.167 ts 0.25 ts 0.500 ts 1.00 ts 1.50 ts 2.00 ts 50 0.167 ts 0.25 ts 0.375 ts 0.75 ts 1.25 ts 1.50 ts 60 0.167 tb 0.200 ts 0.375 ts 0.50 ts 1.00 ts 1.25 ts 65 0.100 ts 0.167 ts 0.250 ts 0.50 ts 0.75 ts 1.00 ts





G – 2: Pool Feed Charts

Quantity of Muriatic Acid Needed to Lower Total Alkalinity Desired Decrease

In ppm Gallons in Pool

10,000 25,000 50,000 75,000 100,000 200,000 500,000 750,000 1,000,000 10 1.30 pt 1.62 qt 3.25 qt 1.22 gl 1.62 gl 3.25 gl 8.13 gl 12.20 gl 16.25 gl 20 1.30 pt 3.25 qt 1.62 gl 2.43 gl 3.25 gl 7.50 gl 16.20 gl 24.30 gl 32.50 gl 30 1.95 qt 1.22 gl 2.44 gl 3.86 gl 4.98 gl 9.76 gl 24.40 gl 36.60 gl 48.80 gl 40 2.80 qt 1.63 gl 3.25 gl 4.87 gl 6.50 gl 13.00 gl 32.50 gl 48.80 gl 65.00 gl 50 3.25 qt 2.03 gl 4.07 gl 6.10 gl 8.14 gl 16.28 gl 40.70 gl 61.00 gl 81.40 gl 60 3.90 qt 2.44 gl 4.88 gl 7.32 gl 9.76 gl 19.52 gl 48.80 gl 73.20 gl 97.80 gl 70 1.14 gl 2.84 gl 5.69 gl 8.54 gl 11.38 gl 22.76 gl 56.90 gl 85.45 gl 113.80 gl 80 1.30 gl 3.25 gl 6.50 gl 9.75 gl 13.00 gl 26.00 gl 65.00 gl 97.50 gl 138.00 gl 90 1.48 gl 3.66 gl 7.31 gl 10.96 gl 14.82 gl 29.24 gl 73.10 gl 109.60 gl 146.20 gl 100 1.63 gl 4.06 gl 8.12 gl 12.18 gl 16.24 gl 32.48 gl 81.20 gl 121.80 gl 162.40 gl 120 1.96 gl 4.88 gl 9.76 gl 14.64 gl 19.52 gl 39.00 gl 97.80 gl 148.40 gl 196.20 gl 150 2.44 gl 6.09 gl 12.18 gl 18.27 gl 24.40 gl 48.80 gl 121.80 gl 182.70 gl 244.00 gl 200 3.25 gl 8.12 gl 18.24 gl 24.36 gl 32.50 gl 65.00 gl 162.40 gl 243.80 gl 325.00 gl

pt = one pt (16 fl oz) qt = one quart (32 fl oz) gl = one gallon (128 fl oz)

Quantity of Bicarbonate of Soda Needed to Raise Total Alkalinity Desired Increase

In ppm Gallons in Pool

10,000 25,000 50,000 75,000 100,000 200,000 500,000 750,000 1,000,000 10 1.50 lb 3.75 lb 7.50 lb 11.25 lb 15.00 lb 30.00 lb 75.00 lb 112.50 lb 150.00 lb 20 3.00 lb 7.50 lb 15.00 lb 22.50 lb 30.00 lb 60.00 lb 150.00 lb 225.00 lb 300.00 lb 30 4.50 lb 11.25 lb 22.50 lb 33.75 lb 45.00 lb 90.00 lb 225.00 lb 337.50 lb 450.00 lb 40 6.00 lb 15.00 lb 30.00 lb 45.00 lb 60.00 lb 120.00 lb 300.00 lb 450.00 lb 600.00 lb 50 7.50 lb 18.75 lb 37.50 lb 56.25 lb 75.00 lb 150.00 lb 375.00 lb 562.50 lb 750.00 lb 60 9.00 lb 22.50 lb 45.00 lb 67.50 lb 90.00 lb 180.00 lb 450.00 lb 675.00 lb 900.00 lb 70 10.50 lb 26.25 lb 52.50 lb 78.75 lb 105.00 lb 210.00 lb 525.00 lb 787.50 lb 1050.00 lb 80 12.00 lb 30.00 lb 60.00 lb 90.00 lb 120.00 lb 240.00 lb 600.00 lb 900.00 lb 1200.00 lb 90 13.50 lb 33.75 lb 67.50 lb 101.25 lb 135.00 lb 270.00 lb 675.00 lb 1012.50 lb 1350.00 lb 100 15.00 lb 37.50 lb 75.00 lb 112.50 lb 150.00 lb 300.00 lb 750.00 lb 1125.00 lb 1500.00 lb

lb =pounds of dry chemical

Quantity of Calcium Chloride Needed to Increase Calcium Hardness


Gallons in Pool 10,000 25,000 50,000 75,000 100,000 200,000 500,000 750,000 1,000,000

lb oz lb oz lb oz lb oz lb oz lb lb oz lb oz lb 10 1 4 3 2 6 4 9 6 12 8 25 62 8 93 12 125 20 2 8 6 4 12 8 18 12 25 0 50 125 0 197 8 250 30 3 12 9 6 18 12 28 2 37 8 75 187 8 281 4 375 40 5 0 12 8 25 0 37 8 50 0 100 250 0 375 0 500 50 6 4 15 10 31 4 46 14 62 8 125 312 8 468 12 625 60 7 8 18 12 37 8 56 4 75 0 150 375 0 562 8 750 70 8 12 21 14 43 12 65 10 87 8 175 437 8 658 4 875 80 10 0 25 0 50 0 75 0 100 0 200 500 0 750 0 1,000 90 11 4 28 2 56 4 84 6 112 8 225 562 8 843 12 1,125 100 12 8 31 4 62 8 93 12 125 0 250 625 0 937 8 1,250 150 18 12 46 14 93 12 104 10 187 8 375 937 8 1,406 4 1,875 200 25 0 62 8 125 0 187 8 250 0 500 1,250 0 1,875 0 2,500

Quantity of Chlorine Compound Needed to Increase 1 ppm

Percent Chlorine In Product

Gallons in Pool 10,000 25,000 50,000 75,000 100,000 200,000 500,000 750,000 1,000,000

5 3.2 cp 2 qt 1 gl 1.5 gl 2 gl 4 gl 10 gl 15 gl 20 gl 10 1.6 cp 1 qt 2 qt 3 qt 1 gl 2 gl 5 gl 7.5 gl 10 gl 12 1.33 cp 1.67 pt 1.517 qt 2.276 pt 3.33 qt 1.665 gl 4.163 gl 6.245 gl 8.326 gl 30 0.278 lb 0.665 lb 1.390 lb 2.085 lb 2.780 lb 5.580 lb 13.900 lb 20.850 lb 27.800 lb 40 0.209 lb 0.521 lb 1.043 lb 1.565 lb 2.086 lb 4.172lb 10.430 lb 15.645 lb 20.860 lb 50 0.167 lb 0.417 lb 0.834 lb 1.251 lb 1.668 lb 3.336lb 8.340lb 12.511 lb 16.680 lb 60 0.139 lb 0.348 lb 0.695 lb 1.043 lb 1.390 lb 2.780lb 6.950 lb 10.425 lb 13.900 lb 65 0.128 lb 0.321 lb 0.642 lb 0.963 lb 1.284 lb 2.568lb 6.420 lb 9.630lb 12.840 lb 70 0.119 lb 0.298 lb 0.596 lb 0.894 lb 1.192 lb 2.384lb 5.960lb 8.940 lb 11.920 lb 75 0.111 lb 0.278 lb 0.556 lb 0.834 lb 1.112 lb 2.224 lb 5.560 lb 8.340 lb 11.120 lb 80 0.104 lb 0.261 lb 0.521 lb 0.782 lb 1.042 lb 2.064 lb 5.210 lb 7.815 lb 10.420 lb 85 0.096 lb 0.417 lb 0.491 lb 0.737 lb 0.982 lb 1.964 lb 4.910 lb 7.365 lb 9.829 lb 90 0.093 lb 0.232 lb 0.463 lb 0.695 lb 0.926 lb 1.852 lb 4.630 lb 6.945 lb 9.260 lb 100 0.083 lb 0.209 lb 0.417 lb 0.626 lb 0.634 lb 1..668 lb 4.170 lb 6.225lb 8.340 lb

cp = one cup (8 fl oz) pt = one pt (16 fl oz) qt = one quart (32 fl oz) gl = one gallon (128 fl oz) lb =pounds of dry chemical




SSeeccttiioonn HH:: IInnssttaallllaattiioonn DDiiaaggrraammss

H – 1: Pressure Filter Installation

H – 2: Vacuum Filter Installation




SSeeccttiioonn II:: RReeppllaacceemmeenntt PPaarrttssFuses 8140086 115V Unit Main Fuse Time Lag 250mA 250V 8140093 230V Unit Main Fuse Time Lag 125mA 250V 9140088 Relays 1-3 Time Lag 3A 250V 8140059 RS485 Fuse Time Lag 250mA 250V 8320053 Fuse Cap Sensors pH Sensors 9660001 Industrial pH Sensor (30” cable) [range: 0 to 14.0 pH] 9660013 BECSys pH Sensor (30” cable) [range: 0 to 14.0 pH] 9660010 BECSys pH Sensor (10’ cable) [range: 0 to 14.0 pH] ORP Sensors 9660002 Industrial ORP Sensor (30” cable)

[range: 0 to 1000mV] 9660022 BECSys ORP Sensor Platinum Band (30” cable)

[range: 0 to 1000mV] 9660023 BECSys ORP Sensor Platinum Band (10’ cable)

[range: 0 to 1000mV] 9660038 BECSys ORP Sensor Solid Gold Band (30” cable)

[range: 0 to 1000mV] 9660040 BECSys ORP Sensor Solid Gold Band (10’ cable)

[range: 0 to 1000mV] pH/ORP Sensor Accessories 8500061 4/KCl solution (pint); for long-term storage of sensors 8680015 ½” Wetting Cap for pH and ORP sensors Temperature Sensors 9660016 Temperature Sensor (30” cable)

[range: 32°F to 212°F (0°C to 100°C)] 9660003 Temperature Sensor (10’ cable)

[range: 32°F to 212°F (0°C to 100°C)] Flow Switches 9660006 Reed flow switch [Switch Point (On): 2.0 gpm] 9660007 Rotary flow switch [Switch Point (On): 1.5 gpm] 9060547 Spring Check Valve 8680019 Rotary Flow Switch Replacement Kit includes: 1 Pin,

1 Cover, 1 Wheel, 1 O-ring 8060663 Rotary Flow Switch Replacement Pin 8060664 Rotary Flow Switch Replacement Cover 8060665 Rotary Flow Switch Replacement Wheel 8060666 Rotary Flow Switch Replacement O-Ring Boards 1200406 BECSys2 CPU PCB 1200407 BECSys2 Relay PCB Software 1230084 BECSys2 Program IC 9680014 PLCC Extraction Tool

Documentation 8620006 BECSys2 Operation and Maintenance Manual 8620009 BECSys2 Installation and Technical Manual Misc Enclosure Parts M000063 BECSys2 Lid Assembly (No PCB) no ppm scale M000064 BECSys2 Lid Assembly (No PCB) 0.2-3.0 ppm scale M000065 BECSys2 Lid Assembly (No PCB) 0.6-6.0 ppm scale 9440141 BECSys2 Overlay, no ppm scale 9440144 BECSys2 Overlay, 0.2-3.0 ppm scale 9440145 BECSys2 Overlay, 0.6-6.0 ppm scale Internal Components 8041102 2 Position Pluggable Terminal Block (Temperature) 8041103 3 Position Pluggable Terminal Block (Flow Switch,

RS485) 8380650 RS485 IC 9060533 Shield Screws 9520034 Ribbon Cable Flow Cell Replacement Parts Round Flow Cell 1220210 Round Flow Cell Body 1220205 Acrylic Cover for Round Flow Cell 8060626 O-Ring for Round Flow Cell 1220207 PVC Mounting Plate for Round Flow Cell 8080625 Screws – Mounting Plate Rectangular Flow Cell 1220201 2-Sensor Rectangular Flow Cell Body 1220200 Acrylic Cover for 2-Sensor Rectangular Flow Cell 8060669 O-Ring for 2-Sensor Rectangular Flow Cell Common Flow Cell Components 9060189 Screws – Acrylic Cover 8060623 Elbow, 90° PVC 8060624 Elbow, 45° PVC 9060538 Plug, ¼” PVC 9060541 Nipple, ½” Close 8060621 Sample Valve, ¼” Ball Cock 9060546 Ball Valve ½” PVC 9060549 S80 Bushing, PVC ¾ x ½ 9060544 Pressure Gauge 8060673 Pressure Regulator




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LIMITED WARRANTY BECS warrants the controller electronics and flow cell against any defect in workmanship or materials for a period of two years from the date of shipment. BECS warrants the industrial pH and ORP sensors (9660001 and 9660002) against any defect in workmanship or materials for a period of one year from the date of shipment. BECS warrants the BECSys pH and ORP sensors (9660010, 9660013, 9660022, 9660023, 9660038, and 9660040) against any defect in workmanship or materials for a period of two years from the date of shipment. In the event of a component failure due to any defect in workmanship or materials, BECS will repair, or if repair is not possible, replace the defective part or parts of the BECSys controller. BECS will have the sole right to determine whether to repair or replace a product. BECS will not be responsible for any expense associated with installation of repaired or replacement parts. LIMITATIONS AND EXCLUSIONS This is a LIMITED WARRANTY. BECS makes NO WARRANTIES other than those contained herein. The LIMITED WARRANTY replaces and is in lieu of any WARRANTIES of MERCHANTABILITY or of FITNESS FOR A PARTICULAR PURPOSE which are expressly DISCLAIMED. All GENERAL, SPECIAL, INDIRECT, INCIDENTAL AND/OR CONSEQUENTIAL DAMAGES ARE EXCLUDED AND DISCLAIMED. This Limited Warranty is governed by Missouri Law and all disputes related to or arising from this transaction or Limited Warranty shall be resolved in Circuit Court of St. Louis County, Missouri. Any claims under this Limited Warranty must be brought within ONE YEAR after the cause of action accrued.


Document Part Number: 8620010-H10

August 2010 9487 Dielman Rock Island Ind Dr, St. Louis, MO 63132 www.becs.com


has been designing and manufacturing the industry’s most reliable water chemistry controller for over 20 years. Our 24,000 ft2 facility in Saint Louis, Missouri is home to an exceptional design team, and all manufacturing is performed onsite at this facility where we can personally assure the quality of our products. The BECS commitment to excellence drives the most innovative new products and unparalleled customer service.


becsys 2 tech manual

Documents

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section c

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reed flow switch

flow cell

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ph sensor preparations