ew773 series ultrasonic hydronic meters - honeywell · measuring process ultrasonic volume...

Honeywell Subject to change EN0H-2600GE25 R1209

EW773 SeriesUltrasonic Hydronic MetersFOR HEATING AND COOLING APPLICATIONS

PRODUCT DATA

EW7730K1200DE-06-MI004-PTB017

Hydrometer

heatmeter

Inst. place: low temp.

Prod.year: 2007

5N: 34006446 T.sensor: Pt 500

O: 0.....180°C

∆O: 3.....177K

Environm. class: E1

Mechanical class: M1

Metrological class: 2qi: 0.015m3 /h

qp: 1.5m3 /h

qs: 3m3 /h

O: 5.....1

30°C

DN: 15 IP 54

PN: 16

Typ: 773

77300000

M 07 0102

DesignHydronic meters of the EW773 Series consist of:• Electronic energy integrator with cable connection to the

ultrasonic volume measuring component, supply and return temperature probe

• Ultrasonic volume measuring component with external threads according to ISO228 (DN15...DN25) or flanges (DN25…DN80)

Materials• Housing of electronic energy integrator made of black and

transparent plastic• Housing of ultrasonic volume measuring component made of

brass

ApplicationStatic compact hydronic meter with electronic measurement based on the ultrasonic principle, consisting of electronic energy integrator, ultrasonic volume measuring component and temperature sensors.Metering of hydronic heating and / or cooling energy in hydronic systems based on volume, supply and return temperature.EW7730 models are suitable for energy metering of heating systems.EW7731 models are suitable for energy metering of cooling and combined cooling and heating systems.

Features• MID approval• First approval in Europe for ultrasonic heat meter with

dynamic range of qi/qp m³/h 1:250 in class 2 (qp 1.5 / 2.5 / 6.0m³/h)

• Complete dynamic range ≥ 1:1,500• 12 years battery lifetime• Meters up to qp 6 with patented free-beam principle and

robust swirl-free flow around reflector made of stainless steel

• Meters qp10 and larger with direct beam principle• Standard housing dimensions• Can be used for heating (EW7730), cooling or both

(EW7731)• Available in nominal sizes from qp 0.6 up to 40m³/h• Measuring accuracy meets the requirements of EN1434

class 2 and 3• No calming leg required on inlet or outlet for sizes up to

qp 0.6m³/h• Power save mode• Remote reading via M-Bus, RF, RS232 or optical inter-

face• Optional plug and play modules• Individual tariff functions• History memory for 24 months• Extensive diagnostic displays• Windows based HYDRO-SET parametrization software

for optimum adaptation to the user's specific needs

EW773 SERIES ULTRASONIC HYDRONIC METERS

EN0H-2600GE25 R1209 2 Honeywell Subject to change

Specifications

NOTE: Medium temperature may be limited by installation position, see chapter 'Installation' on page 6.

1 when mounted in horizontal position

Medium Water, quality to VDI2035

Medium temperature see table below

Ambient temperature 0…55°C (32…131°F)

Operating pressure Threaded versions: PN16Flanged versions: PN25

kvs (cv)-values see table below

Ambient class EN1434 class C / A

Protection class IP54 / IP64 (EW7731 volume measuring component only)

Type Static heat meter to EN1434

Measuring process Ultrasonic volume measurement

Display LCD, 7-digit

Units MWh – kWh – GJ – Gcal – MBtu

Total values 9 999 999 – 999 999.9 – 99 999.99 – 9 999.999

Values displayed Power – Energy – Flow rate – Temperature

Temperature sensors Pt500 with 2-wire leads

Sensor current Pt500 peak < 2; rms < 0.012mA

Measuring cycle Battery supply: 16sMains unit supply: 1s

Max. temperature difference 177K

Min. temperature difference 3K

Starting temperature difference 0.25K

Absolute temperature measuring range -9.9…189.9°C (14.2…373.8°F)

Operating voltage qp0.6…6: 3.0V lithium batteryqp10…40: 3.6V lithium battery

qp 0.6 1.0 1.5 2.5 3.5 6.0 10 15 25 40

Medium temperature

EW7730: 20…130°C (68…266°F)EW7731: 5...105°C (41...221°F)

EW7730: 20…150°C (68…302°F)EW7731: 5...105°C (41...221°F)

Flow rates

Maximum (qs) m3/h 1.2 2 3 5 7 12 20 30 50 80

Nominal (qp) m3/h 0.6 1 1.5 2.5 3.5 6 10 15 25 40

Minimum (qi) l/h 6 10 6 10 35 24 401/100 150 250 400

Starting l/h 1 2.5 2.5 4 7 7 15 30 50 80

kvs (cv)-value m3/h 2.06 (2.41)

5.27(6.17)

5.48(6.41)

7.91(9.25)

16.7 (19.5)

16.8 (19.7)

32.5 (38.0)

61.2 (71.6)

94.5 (111)

127 (149)

∆p at qp mbar 85 36 75 100 44 128 95 60 70 100


Honeywell Subject to change 3 EN0H-2600GE25 R1209

FunctionIntegratorThe integrator contains all the necessary circuits for recording flow rate and temperature and for calculating, logging and displaying the data. The integrator housing can be mounted directly onto the volume measuring component or to the wall. The meter can be conveniently read from a single line seven-digit display with units and symbols. A pushbutton provides user friendly control of the various display loops. All failures and faults are recorded automatically and displayed on the LCD screen. To protect the reading data, all relevant data is saved in a non-volatile memory (EEPROM). This memory saves the measured values, device parameters and types of error at regular intervalsUltrasonic volume measuring componentThe ultrasonic technology of the volume measuring component permits very high measuring accuracy and can be used in the supply or return pipeline. The volume measuring component meets the requirements of EN1434 / class 2 and 3. The stan-dard cable length between the calculator and the volume measuring component is 1.5m for meters up to qp 6 and 2.5m for meters qp 10-40 (other cable lengths optionally on request).Supply voltage:Standard (12 year life)• Meters up to qp 6: lithium battery 3.0V DC• Meters qp 10-40: lithium battery 3.6V DCOptional (please enquire):• Meters up to qp 6: lithium battery 3.6V DC (16-year life)• Meters up to qp 25: mains unit 230V AC or 24V ACTemperature sensorsPairs of Pt500 temperature sensors with 2-wire leads are used.InterfacesThe EW773 Series is equipped as standard with a ZVEI optical interface with the M-Bus protocol as per EN1434. This inter-face is used, for example, for communication with the HYDRO-SET parametrization software. The meter has two slots for plug and play modules. One slot for a function module and one slot for a communications module.The following communication modules are available as options:• RF module• M-Bus module to EN1434• RS232 moduleThe RS232 module is a serial interface and permits data exchange with the heat meter. A special data cable is required for this purpose.The RF module communicates a list of predefined data records. This can be edited by the HYDRO-SET software.Pulse InputTwo additional pulse inputs are available. The pulse value and the unit is configurable for energy, water, gas or electrical metering by the HYDRO-SET software. Also two accounting days are available for both inputs.Pulse OutputThe meter provides levels for two optional external pulse outputs, which can be freely programmed using the HYDRO-SET software.Possible pulse output values• Energy (standard setting)• Volume (standard setting)• Tariff energy 1• Tariff energy 2• Tariff condition 1, limit switch• Tariff condition 2, limit switch

• Energy error• Volume errorModule CombinationsThe following module combinations for data transmission are available ex works or for retrofitting in the field:Function modules• Pulse input module (2 inputs)• Pulse output module (2 outputs)• Pulse input module and pulse output module (1 input and 1

output)• Combined pulse in- and output module (2 inputs / 1 output)Communication modules• M-Bus• RS232• RFAccessories / SoftwareThe HYDRO-SET parametrization software based on the M-Bus is a convenient tool for handling the hydronic meter. It runs on Windows® 2000, and XP and is used for logs memories:• setting up for operation• reading out measured values• printing of meter logs• meter configurationEvent MemoryEvents such as changes and faults are stored in a non-volatile memory with a capacity of up to 31 entries. The following events are recorded:• Checksum error• Temperature measurement error• Ultrasonic echo time measurement errors• Start and end of test modeMonthly MemoryThe EW773 Series has a history memory of 24 months. The following values are stored in the EEPROM on the programmed date 1…31 of the actual month:• Date / Time• Volume• Energy• Error day counter• Maximum monthly flow rate• Maximum monthly power• Date of maximum monthly flow rate• Date of maximum monthly power• Tariff energy 1• Tariff energy 2• Tariff definition 1• Tariff definition 2• Impulse counter 1• Impulse counter 2



Log MemoryThe log memory is used to store consumption values. The storage frequency can be selected from various storage inter-vals (1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 minutes or the default setting of 24 hours, see Table 1). The data saved in the log memory can be used for the following analyses:• Reading the meter on a certain day

• Example: if the day for reasing is 01.10 (1 October), the meter reading is displayed for the period from 01.10 of the previous year to 30.09 of the current year.

• Comparison of the last consumption period with the prece-ding period

Table 1. Extract of possible log memory settings

Maximum ValuesThe integrator creates max. values for power and flow rate based on consumption time, which are stored in the EEPROM. The integration intervals are adjustable to 6, 15, 30 or 60 minutes. Default setting is 60 minutes.

Storage interval

Values Number of data records

Recor-ding period

5 minutes Error status, overload time temperature, overload time flow rate, forward temperature, return temperature, date and time, energy, tariff energy 1, tariff energy 2, tariff definition 1, tariff definition 2, volume, error day counter

440 36.6 hours15 minutes 440 110 hours1 hour 440 18.3 days24 hours 440 440 days

Tariff FunctionThe integrator offers two optional tariff memories for monitoring plant load states for limit tariffs. Extensive tariff conditions make it possible to adapte the meter individually to the required customer-specific applications. Apart from the energy a time-based tariff can also be programmed.The following limit types are possible (this example applies to the display with 3 decimal places):

Table 2. Limit types

Display ControlThe readings are displayed on the meter by a 7-digit LCD with units and symbolsLoop StructureThe EW773 Series display has six loops. Some display windows consist of two (to maximum seven) displays that are shown alternately at 4-second intervals.Some pictures in the loops can be deactivated separately.

NOTE: For quick visual guidance, the loops in the display are numbered from 1 to 6.

The main loop with the current data, e.g. for energy, volume and flow rate, is programmed as default setting. In the standard setting loop No. 5 (tariff loop) is not active.

Type LIMIT LIMIT resolution∆T 1 ... 190 °C 1 °CT 1 ... 190 °C 1 °CP 1 ... 255 kW 1 kWQ 100 ... 25 500 l/h 100 l/h

Fig. 1. Loop overview



Table 3. Display Contents

Loop Sequence Window 1 Window 2 Window 3„1“

Main loop

1.1 Accumulated energy1.2 Volume1.3 Flow rate1.4 Power1.5 Forward temperature Return temperatur1.6 Difference temperature1.7 Operating hours

1.8[OFF] Monthly peak power Date1.9 Error code1.10 Display test

1.11[OFF] Tariff energy 11.12[OFF] Tariff energy 21.13[OFF] ‘In 1’ Pulse input counter 11.14[OFF] ‘In 2’ Pulse input counter 2

Loop Sequence Window 1 Window 2 Window 3 [OFF] Window 4„2“

Accoun-ting date

loop

2.1 Accounting date 1 Accounting date 1 energy Accounting date 1 volume ‚Accd 1’2.2 Accounting date 1

previous yearAccounting date 1previous year energy

Accounting date 1previous year volume

‚Accd 1’

2.3 ‚Accd 1’ Accounting date 1 in the future

2.4 Accounting date 2 Accounting date 2 energy Accounting date 2 volume ‚Accd 2’2.5 Accounting date 2

previous yearAccounting date 2previous year energy

Accounting date 2previous year volume

‚Accd 2’

2.6 ‚Accd 2’ Accounting date 2 in the future


Info loop

3.1 Current date3.2 ‚SEC_Adr’ Secundary address3.3 ‚Pri_Adr’ Primary address3.4 ‚ Pt 100 r’ or ‚ Pt 500 r’3.5 Monthly peak flow rate Date max. flow rate3.6 Monthly peak power Date max. power3.7 Integration interval

(maximum value)3.8 Number of error day’s3.9 ‚Out1’ Pulse value and unit pulse output 1

3.10 ‚Out2’ Pulse value and unit pulse output 2


Pulse input loop

4.1 ‚In1’ Pulse input counter 1 Pulse value 14.2 ‚In2’ Pulse input counter 2 Pulse value 2

4.3[OFF] Accounting date 1 ‚In1’ Acc. date 1 Pulse value 14.4[OFF] Accounting date 1 ‚In2’ Acc. date 1 Pulse value 24.5[OFF] Accounting date 1 previous year ‚In1’ Acc. date 1 previous year

Pulse value 14.6[OFF] Accounting date 1 previous year ‚In2’ Acc. date 1 previous year

Pulse value 24.7[OFF] Accounting date 2 ‚In1’ Acc. date 2 Pulse value 14.8[OFF] Accounting date 2 ‚In2’ Acc. date 2 Pulse value 24.9[OFF] Accounting date 2 previous year ‚In1’ Acc. date 2 previous year

Pulse value 14.10[OFF] Accounting date 2 previous year ‚In2’ Acc. date 2 previous year

Pulse value 2



[OFF] = not active


Tariff loop

5.1[OFF] Tariff energy 1 Tariff function 1 (e.g. ‚t 01’) Limit tariff 15.2[OFF] Tariff energy 2 Tariff function 2 (e.g. ‚t 02’) Limit tariff 25.3[OFF] Accounting date 1 Accounting date 1 tariff energy 1 ‚Accd 1’5.4[OFF] Accounting date 1 Accounting date 1 tariff energy 2 ‚Accd 1’5.5[OFF] Accounting date 1 previous year Accounting date 1 previous year

tariff energy 1‚Accd 1’

5.6[OFF] Accounting date 1 previous year Accounting date 1 previous year tariff energy 2

‚Accd 1’

5.7[OFF] Accounting date 2 Accounting date 2 tariff energy 1 ‚Accd 2’5.8[OFF] Accounting date 2 Accounting date 2 tariff energy 2 ‚Accd 2’5.9[OFF] Accounting date 2 previous year Accounting date 2 previous year

tariff energy 1‚Accd 2’

5.10[OFF] Accounting date 2 previous year Accounting date 2 previous year tariff energy 2

‚Accd 2’

Loop Sequence Window 1 Window 2 Window 3[OFF]

Window 4[OFF]

Window 5 Window 6 Window 7

„6“

Monthly loop

6.1 Last month Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power6.2 Month –1 Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power6.3 Month -2 Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power

.

.

.6.24 Month -23 Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power

Easy OperationA pushbutton mounted on the front of the meter is used to switch to the various displays. The button can be pressed for a short or long time. A short press of the button (< 3 seconds) switches to the next display within a loop and a long press (> 3 seconds) switches to the next display loop. The "Energy" window (sequence 1.1) in the main loop is the basic display. The meter switches automatically to power save mode if the button is not pressed for approx. 4 minutes and returns to the basic display when the button is pressed again. The loop settings can be programmed to suit the customer's individual requirements using the HYDRO-SET software.Installation• EW773 Series hydronic meters must be installed in the return

pipeline. The correct flow direction is indicated by a flow arrow on the flange or body.

• A calming leg of 5 x DN before the meter is required for sizes qp10 and higher.

• The max. medium temperature is as follows:• 130°C when horizontally mounted and electronics (black

enclosure) turned sideways for sizes qp=0.6...2.5m³/h, or• 150°C when horizontally mounted and electronics turned

sideways for sizes qp=3.5...40m³/h• 120°C when horizontally mounted and electronics turned

upwards• 120°C when vertically mounted

• In any case the energy counter must be separated from the volume measuring unit if the medium temperature exceeds 90°C"

• The energy calculator can be installed on the meter or sepa-rate from the meter.

• The volume measuring component and the energy calculator of meters up to qp6 are connected by a permanently fixed cable with a length of 1.5m.

• The cable between the the volume measuring component and the energy calculator of meters qp10 and larger has to be installed, wiring instructions see below.

• During measurement the meter must be completely filled with water.

WiringThe Volume Measuring Component and the energy meter must be connected as follows (also see Fig. 2.):• 9 red (+)• 10 yellow (signal)• 11 blue (-)

Fig. 2. Wiring



Dimensions

Fig. 3. Dimensions qp=0.6...10m3/h

Fig. 4. Dimensions qp=15...40m3/h

NOTE: All dimensions in mm unless stated otherwise.

Table 4. Dimensions

NOTE: Threaded tailpieces are not supplied with the heat meter

Nominal size qp [m3/h] 0.6/1.0/1.5 2.5 3.5 6.0 10 15 25 40

DN size 15 20 25 25 25 32 40 50 65 80

Body length L [mm] 110 130 260 260 260 260 300 270 300 300

Overall length with fittings

L1 [mm] 190 230 380 380

Height of pipe axis to top of electronics

H [mm] 78 80 84.5 84.5 84.5 84.5 90 91 91 91

Height of pipe axis to bottom of valve housing

h [mm] 14.5 18 23 23

Body thread G [inch] G3/4B G1B G1 1/4B Flanged G1 1/4B Flanged Flanged Flanged Flanged Flanged

Fitting thread (accessory)

R [inch] R1/2 R3/4 R1 R1

Flange diameter D [mm] 114 139 148 163 184 198

Flange dimension F [mm] 100 125 138 147 170 188

Bolt circle diameter d [mm] 85 100 110 125 145 160

Weight [kg] 0.76 0.85 1.5 3.5 1.5 4.8 7.0 8.5 10.8 12.6

150

R G

LL1

50H

h

LF

B

∅d

∅D



Ordering InformationTable 5. Order Specification Overview

Size qp DN size Length Connection Interface OS-No. EW7730 OS-No. EW77310.6m3/h DN15 110mm G3/4B None EW7730A0100 EW7731A0100

1.0m3/h DN15 110mm G3/4B None EW7730A0600 EW7731A0600

1.5m3/h DN15 110mm G3/4B None EW7730A1200 EW7731A1200

2.5m3/h DN20 130mm G1B None EW7730A2000 EW7731A2000

3.5m3/h DN20 260mm G1 1/4B None EW7730A2800 EW7731A2800

3.5m3/h DN25 260mm Flanges PN25 None EW7730A3000 EW7731A3000

6.0m3/h DN20 260mm G1 1/4B None EW7730A3600 EW7731A3600

6.0m3/h DN32 260mm Flanges PN25 None EW7730A4000 EW7731A4000

10m3/h DN40 300mm Flanges PN25 None EW7730A4800 EW7731A4800




0.6m3/h DN15 110mm G3/4B M-Bus EW7730M0100 EW7731M0100



2.5m3/h DN20 130mm G1B M-Bus EW7730M2000 EW7731M2000

3.5m3/h DN20 260mm G1 1/4B M-Bus EW7730M2800 EW7731M2800

3.5m3/h DN25 260mm Flanges PN25 M-Bus EW7730M3000 EW7731M3000

6.0m3/h DN20 260mm G1 1/4B M-Bus EW7730M3600 EW7731M3600

6.0m3/h DN32 260mm Flanges PN25 M-Bus EW7730M4000 EW7731M4000

10m3/h DN40 300mm Flanges PN25 M-Bus EW7730M4800 EW7731M4800




0.6m3/h DN15 110mm G3/4B M-Bus+2 pulse inputs EW7730K0100 EW7731K0100



2.5m3/h DN20 130mm G1B M-Bus+2 pulse inputs EW7730K2000 EW7731K2000

3.5m3/h DN20 260mm G1 1/4B M-Bus+2 pulse inputs EW7730K2800 EW7731K2800

3.5m3/h DN25 260mm Flanges PN25 M-Bus+2 pulse inputs EW7730K3000 EW7731K3000

6.0m3/h DN20 260mm G1 1/4B M-Bus+2 pulse inputs EW7730K3600 EW7731K3600

6.0m3/h DN32 260mm Flanges PN25 M-Bus+2 pulse inputs EW7730K4000 EW7731K4000

10m3/h DN40 300mm Flanges PN25 M-Bus+2 pulse inputs EW7730K4800 EW7731K4800




Scope of Delivery • EW773 Series heat meter with supply and return tempera-

ture sensor• 2 sealings• Fitting for installation of supply temperature sensor• Wall mounting plate• Operating and setup instructions



AccessoriesUnion nut, sealing and externally threaded red bronze tail-piece

DN 15 VA7401A015DN 20 VA7401A020DN 25 VA7401A025

Sanpress red bronze compression-fitting with sealingDN15, for 15 mm pipe-Ø VA7404A015DN15, for 18 mm pipe-Ø VA7404A018DN20, for 22 mm pipe-Ø VA7404A020DN25, for 28 mm pipe-Ø VA7404A025

Union nut, sealing and internally threaded red bronze tail-piece

DN 15 VA7405A015DN 18 VA7405A018DN 20 VA7405A020DN 25 VA7405A025

Ballvalve with connection for supply temperature sensorG1/2" internal thread EWA087HY004G3/4" internal thread EWA087HY005G1" internal thread EWA087HY006

Ballvalve with two side connections G1/4" internal thread and one blind stop

G1/2" internal threads VB550SY2015G3/4" internal threads VB550SY2020G1" internal threads VB550SY2025G1 1/4" internal threads VB550SY2032G1 1/2" internal threads VB550SY2040

NOTE: Only available in packing units of 6 pcs or 8 pcs (3/4")For connection of supply temperature sensor adapter EWA354830 is required

Tailpiece for connection of supply temperature sensorR1/2" external thread, M10x1 sensor thread

EWA087HY003

G1/4" external thread, M10x1 sensor thread

EWA354830

Brass immersion pockets (for use with MID meters)35mm EWA300268452mm EWA300268585mm EWA3004406120mm EWA3004407

ModulesM-Bus communication module (for upgrade of EW773xA types)

EWA54200001

Pulse output module (2 outputs)

EWA54200002

Pulse input module (2 inputs)

EWA54200003

RF communication module EWA54200017Combined pulse in- and output module

EWA54200026

RS232 interface modulewith cable

EWA54200030

Measuring Accuracy

Fig. 5. Measuring accuracy to EN1434 Class 2



Flow Diagram

Fig. 6. Pressure drop diagram

50

400000

100,6 1.0 1.5 2.5 3.5 6.0 15 25 40


Environmental and Combustion ControlHoneywell GmbHHardhofweg74821 Mosbach, GermanyPhone: +49 (6261) 810Fax: +49 (6261) 81393www.honeywell.com

EN0H-2600GE25 R1209December 2009© 2009 Honeywell International Inc.Subject to change without noticeManufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 16, Switzerland or its authorized representative.

ew773 series ultrasonic hydronic meters - honeywell · measuring process ultrasonic volume...

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