Mini-Pour/Cloud Point Tester

Model MPC-102A/102L

Instruction Manual Ver.2.21 090120

Read this manual thoroughly before using the product, and store in a safe place for future reference.

TANAKA SCIENTIFIC LTD, TOKYO, JAPAN

FOREWORD

Thank you for purchasing the Mini-Pour/Cloud Point Tester Model MPC-102A/102L from Tanaka Scientific Limited. This instruction manual provides necessary information for using the MPC-102A/102L. Read this manual thoroughly before use and ensure that you have understood its contents. This manual employs the following precautionary notation. For your safety, ensure that you understand these precautions and heed them at all times.

! WARNING：・・・・・・・・・・ Warnings indicate a significant risk of death or serious physical injury if the information is ignored.

! CAUTION：・・・・・・・・・・

Cautions indicate a significant risk of physical injury or property damage if the information is ignored.

USES

! Warning: Use the product only to measure pour points and cloud points as prescribed under ASTM D6749 "Standard Test Method for Pour Point of Petroleum Products (Automatic Air Pressure Method)" and ASTM D2500 "Standard Test Method for Cloud Point of Petroleum Products".

The product has automated test processes corresponding to those prescribed in ASTM D6749 "Standard Test Method for Pour Point of Petroleum Products (Automatic Air Pressure Method)" and ASTM D2500 "Standard Test Method for Cloud Point of Petroleum Products" for the purpose of obtaining pour points and cloud points only. This product is not to be used for any other purpose.

- 1 -

ABOUT THIS INSTRUCTION MANUAL This manual is intended for all operators of the MPC-102A/102L.

The reader is assumed to have sufficient knowledge of ASTM procedures and standards as well as knowledge of the correct handling procedures for hazardous materials.

The content this manual is subject to change without notice due to enhancements to the performance and functionality of the instrument.

If this manual is lost or damaged, contact Tanaka Scientific Limited or an authorized distributor for a replacement copy.

The contents of this manual have been thoroughly reviewed. If any pages are missing, out of order, or the manual contains spelling, grammatical or descriptive errors, please contact Tanaka Scientific Limited or an authorized distributor.

BEFORE USE

Before using the product, ensure that you have read this manual thoroughly and have understood all of the content. If you have any questions, be sure to contact Tanaka Scientific Limited or an authorized distributor

Keep this manual in a safe, easily accessible place.

This product is to be used for its intended purpose only. Adhere strictly to all

procedures given in this manual.

Ensure that you understand and abide by all warnings and cautions given in this manual.

- 2 -

WARNINGS AND CAUTIONS FOR SAFE USE Failure to follow all of the warnings and cautions listed below may result in damage to the instrument and/or serious personal injury. Tanaka Scientific Limited will not assume any responsibility for faults or accidents arising from failure to adhere to these instructions.

Installation Environment

! Warning: The instrument must be installed on a flat, sturdy surface

to prevent the instrument from falling over.

Coolant Circulation Piping

! Caution: Ensure that each joint in the coolant circulation piping is securely fastened to prevent coolant leakage, as this may result in instrument failure.

! Caution: Do not use methanol as cooling medium. O-ring of solenoid valve may have damage and the unit will not work correctly.

70% of ethylene glycol and 30% of distilled water mixture will be the best for this unit.

Electrical Connection

! Warning: Observe the following instructions when handling power

cables and electric connections:

・ Do not connect or disconnect any cables or electrical connections when the mains power is ON.

・ Do not handle any cables or electrical connections with wet hands.

・ Be sure to use the plug to remove cables. Never use the cord to pull a plug from an outlet.

・ Do not place heavy items on cords or cable.

- 3 -

・ Do not use force to bend any cords or cables. ・ Ensure that all electric connections (plugs, sockets,

connectors, etc.) are free of dust. ・ Keep all cables and electrical connections free of water

and other liquids.

・ Failure to adhere to the above precautions may result in electric shock, damage to the instrument, cords and/or cables, and/or fire due to overheating.

! Warning: Ensure that supply voltage meets the specifications of the

product. Do not turn the power on until all electric connections are secured. Incorrect power supply specifications or loose electric connections may damage the instrument and result in electric shock and/or other electrical accidents.

! Warning: Ensure all ground wires are securely grounded. Loose or disconnected ground wires may result in electric

shock. Never connect ground wires to gas pipes, as this may

result in fire or an explosion. Ground wires may be connected to one of the following:

・ Ground terminal of a power outlet ・ Copper bar buried 65 cm or more underground ・ Water pipes as authorized by your local water bureau

as a grounding object

Handling Precautions

! Caution: Never press the START key unless coolant is circulating

normally. Starting the unit with no coolant present may damage the thermo-module that cools and heats the bath.

! Caution: Ensure that an approximate pour/cloud point is entered prior to every test run. If an appropriate estimation is not

- 4 -

entered or the value entered is much greater than the actual pour/cloud point, the testing procedure may be prolonged or produce incorrect results.

Operational Precautions

! Warning: If the instrument makes any abnormal noises or exhibits any abnormal behavior, stop operation immediately, turn the power off at the mains, and contact Tanaka Scientific Limited or an authorized distributor.

Consumables, Accessories and Replacement Parts

! Caution: Use only Tanaka Scientific Limited genuine consumables, parts and accessories or such parts as recommended by Tanaka Scientific Limited.

Repairs, Alterations and Maintenance

! Warning: Do not make any modifications or alterations to the instrument without the approval of Tanaka Scientific Limited.

! Warning: Do not attempt to repair the instrument yourself. In the event that the instrument exhibits any abnormal behavior whatsoever, contact Tanaka Scientific Limited or an authorized distributor.

! Warning: Only Tanaka Scientific Limited service personnel or authorized representatives are to repair or maintain the instrument.

- 5 -

Contents FOREWORD..................................................................................................................................0 ABOUT THIS INSTRUCTION MANUAL ........................................................................................1 BEFORE USE................................................................................................................................1 WARNINGS AND CAUTIONS FOR SAFE USE ............................................................................2 Contents.........................................................................................................................................5 1. Section Names and Functions .............................................................................................6 2. Operational Principles..........................................................................................................8 3. Installation............................................................................................................................9

3.1. Installation Site .......................................................................................................................... 9 3.2. Connection of the Coolant Circulation Device (MPC-102L Only) .................................... 10 3.3. Electric Connections (See Fig. 4 on page 12) .................................................................... 10

4. Routine Daily Inspection ....................................................................................................13 5. Prior to Testing ..................................................................................................................14

5.1. Turning the Power on ............................................................................................................. 14 5.2. Setting the Coolant Temperature (MPC-102L Only) ......................................................... 15 5.3. Specimen Preparation ............................................................................................................ 15 5.4. Test Mode Selection ............................................................................................................... 17 5.5. Setting the Expected Pour/Cloud Point ............................................................................... 18 5.6. Preheating Selection .............................................................................................................. 18 5.7. Entering Sample Names ........................................................................................................ 18

6. Test Procedure ..................................................................................................................20 6.1. Starting a Test ......................................................................................................................... 20 6.2. Automatic Testing Process .................................................................................................... 20

7. Data Storage Functionality.................................................................................................27 8. Maintenance and Post-sales Servicing ..............................................................................28

8.1. Periodic Maintenance ............................................................................................................. 28 8.2. Consumables and Accessories............................................................................................. 28 8.3. Troubleshooting....................................................................................................................... 29 8.4. Period of Warranty .................................................................................................................. 29 8.5. Period of Availability of Maintenance Tools ........................................................................ 29

9. Post-delivery Notes............................................................................................................30 9.1. Long Periods of Dormancy .................................................................................................... 30 9.2. Lost Instruction Manuals ........................................................................................................ 30 9.3. Transfer .................................................................................................................................... 30 9.4. Disposal .................................................................................................................................... 30

10. Specifications.....................................................................................................................31 Product Warranty .........................................................................................................................34

- 6 -

1. Section Names and Functions

Fig. 1: General View of Model MPC-102A/102L

Main Switch: Turns the instrument on or off.

Control Panel: Keys and switches for operating the device (See Fig. 2 on page 7)

Display: Displays test conditions, instrument state and test results (See Fig. 2 on page

7)

Temperature sensor: Two sensing elements for pour point and cloud point measurements

Pour Point Sensor: Detects flow changes due to changes in pressure on the surface of a specimen.

Cloud Point Sensor: Detects changes in the intensity of light reflected from the bottom of the

specimen cup

Detector: Compound detector assembly containing temperature, PP and CP sensors

Insulator: Prevents condensation around the detector.

Main Switch Control Panel

Detector

Cloud Point Sensor Pour Point Sensor (Vinyl Tube)

Temperature Sensor

Display

Insulator

- 7 -

MODE START CHECKRESETCOOL

WARM

FUNC

TION

RUN

①

② ③ ⑤ ⑦ ⑧

④ ⑥

⑨

⑩

⑪

Fig. 2: Model MPC-102A/102L Control Panel

① Fluorescent Display: Displays test mode, specimen temperature, pour/cloud point results

(when flashing), and Expected flow point.

② MODE Key: Changes test mode.

③ START Key: Starts testing.

④ RUN Lamp: Indicates when testing is in progress. (Green)

⑤ COOL/WARM Key: Heats the bath.

Note: the device does not provide a cooling function, only a heating function.

⑥ WARM Lamp: Indicates when heating is in progress. (Orange)

⑦ RESET Key: Immediately stops all testing and heating operations.

⑧ CHECK Key: Applies air pressure to the specimen.

⑨ FUNCTION Key: Accesses the function menu.

⑩ Left-Right Arrow Keys: Used to select menu items.

⑪ Up-Down Arrow Keys: Increment or decrement numeric values or to change the value of an item.

- 8 -

2. Operational Principles

The MPC Series employs Tanaka Scientific's unique air pressure system (certified as U.S. standard

ASTM D 6749) to detect pour points (solidification points). Air pressure is applied to the surface of a

specimen, with subsequent motion of the sample surface measured to detect sample flow.

［System Outline］

The specimen chamber and specimen surface are divided into inner and outer regions by the pressure

conducting tube. Air pressure is applied to the specimen by a pressurizing syringe connected to the

outer region, creating a pressure differential between the inner and outer surfaces of the sample. Two

outcomes are then possible.

1. Specimen flow

The pressure differential causes the specimen to flow,

with the surface level inside the pressure conducting

tube rising (principle of the U-tube), causing a change in

pressure that is detected by the pressure sensor inside.

Upon a pre-determined pressure change, the pressure

switch is activated, indicating to the instrument that the

specimen is still flowing.

<Flow detected ⇒ Test continues>

2. No specimen flow

When the specimen is not flowing, the specimen surface

levels do not change despite the pressure differential.

Thus, the pressure inside the pressure conducting tube

remains unchanged and the pressure switch is not

activated. Specimen flow is assumed to have stopped if

the pressure switch is not activated within five seconds.

<<Non-Flow (solid) detected ⇒ Test completes>

ON

Pressure rise detected

Pressure conducting tube

Specimen Cup

Pressurizing Syringe

Detector Head

Bath Specimen

Pressure Switch

Pressure sensor

OFF

No pressure rise

- 9 -

3. Installation

3.1. Installation Site

! Warning: The instrument must be installed on a flat, sturdy surface to prevent the instrument from falling over.

Install the instrument on a strong, level bench in a ventilated place.

Do not expose the instrument to any of the following:

・ High temperatures or high humidity

・ Direct sunlight

・ Dust

・ Rapid temperature changes

The instrument is divided into two sections, a test unit and a control unit, with the test unit designed

to sit on top of the control section. However, the units may be separated to allow, for example, the

test unit to be located in a draft chamber (1).

When stacking the measuring and control units, the dripping tray (standard accessory, MPC-102L

only) should be installed between the units. The drip tray protects the control unit and electrical

connections from any water leaking from the test unit or any hose connections.

Ensure that the drip tray is installed in the correct orientation. The side of the tray with no wall

should be located at the rear of the unit. The four protrusions on the bottom of the test unit align

with the four indentations in the top surface of the control unit (see Fig. 3).

Note (1): When operating the units in separate locations, the optional 3-m connection cable

should be used instead of the standard accessory connection cable (0.6 m).

Fig. 3: Drip tray installation (MPC-102L Only)

Indentations in control unit

Water flows from here

Protrusions from drip

Test unit

Front Rear

- 10 -

3.2. Connection of the Coolant Circulation Device (MPC-102L Only)

! Caution: Do not use methanol as cooling medium. O-ring of solenoid valve may have damage and the unit will not work correctly.

70% of ethylene glycol and 30% of distilled water mixture will be the best for this unit.

! Caution: Do not use methanol as cooling medium. O-ring of solenoid valve may have damage and the unit will not work correctly.

70% of ethylene glycol and 30% of distilled water mixture

will be the best for this unit.

Connect the coolant inlet on the back of the test unit to the pump discharge port of the coolant

circulation device and the coolant outlet to the coolant return side of the coolant circulation device

using the standard accessory coolant circulation hose (with insulation pipe). Secure each connection

port with a hose belt.

3.3. Electric Connections (See Fig. 4 on page 12)

! Warning: Observe the following instructions when handling power cables and electric connections:

・ Do not connect or disconnect any cables or electrical connections when the mains power is ON.

・ Do not handle any cables or electrical connections with wet hands.

・ Be sure to use the plug to remove cables. Never use the cord to pull a plug from an outlet.

・ Do not place heavy items on cords or cable. ・ Do not use force to bend any cords or cables. ・ Ensure that all electric connections (plugs, sockets,

connectors, etc.) are free of dust. ・ Keep all cables and electrical connections free of water

and other liquids. ・ Failure to adhere to the above precautions may result

- 11 -

in electric shock, damage to the instrument, cords and/or cables, and/or fire due to overheating.

! Warning: Ensure that supply voltage meets the specifications of the product. Do not turn the power on until all electric connections are secured. Incorrect power supply specifications or loose electric connections may damage the instrument and result in electric shock and/or other electrical accidents.

! Warning: Ensure all ground wires are securely grounded. Loose or disconnected ground wires may result in

electric shock. Never connect ground wires to gas pipes, as this may

result in fire or an explosion. Ground wires may be connected to one of the following:

・ Ground terminal of a power outlet ・ Copper bar buried 65 cm or more underground ・ Water pipes as authorized by your local water bureau as a grounding object

(1) Two cables are used to connect the control unit to the test unit (standard 0.6 m or optional 3 m), a

power cable (AC line) and a signal cable (signal line). The sockets for these cables are located on

the rear panels of both units.

(2) Insert the power cable and secure by fastening the lock nut. Insert the signal cable and secure

using the clips on the sides of the plugs. Connect the power cord to the back of the control unit

and to a specified voltage AC outlet rated at 1.5 KVA or more. (2)

The maximum power consumption of this instrument is 0.5 kW. When sharing an outlet with other

electric appliances, ensure that the total power consumption does not exceed the outlet capacity.

Note (2): The standard power cord comes with a three-prong plug. If the plug does not fit your

outlet, you will need to change the plug.

If the outlet is not equipped with a ground terminal, connect the cord to the outlet via the ground

adapter (triangular add-on), ensuring that the instrument is grounded using a ground cord

extension.

- 12 -

Fig. 4: Rear view of Model MPC-102L

10 A

I N

Circuit Protector

RS-232C Connector

Coolant outlet

Coolant inlet

Signal cableP

ower cable

Power cord

Coolant circulation device (OUT) (To water tap)

Coolant circulation hose (w

ith insulation pipe)

OUT

Coolant circulation device (IN) (To water drain)

Coolant circulation hose (w

ith insulation pipe)

AC Outlet

MPC-102L Only

MPC-102L Only

MPC-102L Only

- 13 -

4. Routine Daily Inspection

The following should be checked routinely before using the instrument:

Table 1 Checklist

Item Check that…

Appearance

Coolant piping

(MPC-102L Only)

Electrical

connections

Operation

・ Housing, cables, hoses, etc. are undamaged

・ All coolant hoses are free of leaks and other damage

・ Each connection is securely fastened

・ There are no indications of coolant leakage

・ Coolant hoses are fully insulated with the insulation pipe

・ All power cords and cables are free of damage

・ The power plug is fully inserted into the outlet

・ The grounding cable is properly connected (only applicable if

using the ground adapter)

(After turning the main power on…)

・ The display appears to be functioning correctly

・ Control panel keys respond appropriately when pressed

・ The Expected pour point has been correctly entered

! Warning: Do not attempt to repair the instrument yourself. In the event that the instrument exhibits any abnormal behavior whatsoever, contact Tanaka Scientific Limited or an authorized distributor.

- 14 -

5. Prior to Testing

5.1. Turning the Power on

After turning the main power switch on, the display panel should display the main screen shown in Fig.

5: . Pressing the FUNCTION key at this point will give you access to detailed settings, as shown in

Fig. 6: .

Fig. 5: Main Display Screen

Test mode: Displays the current testing mode. Test type is shown at the top, pressure

in the middle, and detection interval (in °C) at the bottom.

Current Specimen Temperature: Displays the temperature measured by the pour point temperature sensor. When a pour point (or a cloud point) is detected, this value will begin flashing and remain constant until reset.

Preheat (Y/N): Indicates if the specimen is to be preheating before cooling by an arrow

( : Yes, : No).

Bath Temperature: Displays the temperature of the bath (before testing only).

Expected Pour/Cloud Point: The Expected pour point or cloud point entered prior to testing.

Fig. 6: Details Screen

Light Intensity: Displays the fraction of light reflected from the bottom of the specimen

cup to the cloud point sensor.

Previous Results: Shows the last measured pour and cloud points. The data is updated each time a test is completed.

Current Temperature: Displays the current temperatures at the pour point, cloud point and bath sensors.

Expected Pour/Cloud Point Test Mode

Current Specimen Temperature

23.5

Preheat (Y/N)

Bath Temperature

EXP.PP

00.0

BATH

23.3

PP

L

1.0

SAMPLE TEMP

Received light intensity Previous result Current temperature

Proj 00%

Recv 00%

Prev CP

Prev PP -37.5

PP Sensor 23.5

CP Sensor 23.6

Bath 23.3

- 15 -

5.2. Setting the Coolant Temperature (MPC-102L Only)

! Caution: Never press the START key unless coolant is circulating

normally. Starting the unit with no coolant present may damage the thermo-module that cools and heats the bath.

Start the coolant circulation device and enter a temperature (refer to the Coolant Circulation Device

Instruction Manual). Since the lower limit of the measuring range of the instrument depends on the

coolant temperature (see Table 2), ensure that you have selected the correct temperature for the

specimen you are testing.

Table 2 Coolant Circulation Device Set Temperature Coolant circulation device set temperature Measuring range

0 ＋51 to -40

-40 ＋51 to -65

5.3. Specimen Preparation

Fig. 7 Cross Section of the Detector Assembly

Pressure conducting tube

Temperature sensor

Cloud point sensor (Light guide)

Compound Detector

Metallic tip

O Ring

- 16 -

(1) The specimen cup and pressure conducting tube should be removed from the detector, cleaned

with an appropriate solvent and dried prior to use. Wipe any oil from the temperature and cloud

point sensors with a tissue or a waste cloth.

(2) With the metallic tip facing away from the detector assembly, insert the pressure conducting tube

into the hole in the detector around the temperature sensor (see Fig. 7)

(3) Fill the specimen cup with specimen up to the reference mark and insert into the bath.

(4) Insert the detector assembly into the bath vertically, taking care not to knock the cloud point

sensor or pressure conducting tube against the specimen cup. The detector assembly should

then be screwed securely into place. Be careful not to twist the wires between the detector and

main unit.

(5) Finally, fix the insulation pad in place to prevent problems arising from condensation during

testing

- 17 -

5.4. Test Mode Selection

The instrument contains 25 preset test modes, which are combinations of test type, pressure and

detection interval (see Fig. 8).

Selecting the correct mode can be time consuming, and so the test modes that are available to

users can be customized (refer to the attached Maintenance Manual for more information).

The MODE key is used to select from the available test modes. While holding the MODE key down,

press either the left arrow or right arrow keys to cycle backwards or forwards through the available

modes.

The following preset test modes are available:

Test type

PP/CP: Simultaneous cloud point and pour point testing

PP : Pour point testing only

CP : Cloud point testing only

Pressure: Air pressure used in pour point detection

Not applicable to test type CP.

In the ascending order of pressure, the options are L, H, VH and UH.

L : For specimens such as gas oil that loses fluidity as wax precipitates

H : For specimens such as lubricants that loses fluidity as viscosity

increases

VH: Primarily for lubricants that contains additives more than a fixed

quantity.

UH: Primarily for heavy fuel oils, like bunker C (No.6 fuel oil).

Note : If the sample shows the result that higher than you expected,

please try the test again with higher pressure mode.

Detection interval: Temperature interval (°C) used in pour point detection

1.0: Detection at every 1.0°C from 15°C above the Expected pour point

2.5: Detection at every 2.5°C from 15°C above the Expected pour point

3.0: Detection at every 3.0°C from 15°C avove the Expected pour point

Cloud point detection intervals are fixed at 0.1°C* or 1.0°C in PP/CP and

CP test types. For changing interval, refer to the Maintenance Manual.

Note : CP detection of 0.1°C is applicable from firmware ver.2.2

1 PP/CP L 1.0 2 PP/CP L 2.5 3 PP/CP L 3.0 4 PP/CP H 1.0 5 PP/CP H 2.5 6 PP/CP H 3.0 7 PP L 1.0 8 PP L 2.5 9 PP L 3.010 PP H 1.011 PP H 2.512 PP H 3.013 PP/CP VH 1.014 PP/CP VH 2.515 PP/CP VH 3.016 PP/CP UH 1.017 PP/CP UH 2.518 PP/CP UH 3.019 PP VH 1.020 PP VH 2.521 PP VH 3.022 PP UH 1.023 PP UH 2.524 PP UH 3.025 CP

Fig. 8 Preset Test Modes

- 18 -

5.5. Setting the Expected Pour/Cloud Point

! Caution: Ensure that an approximate pour/cloud point is entered prior to every test run. If an appropriate estimation is not entered or the value entered is much greater than the actual pour/cloud point, the testing procedure may be prolonged or produce incorrect results.

In this instrument, the entry of an Expected pour/cloud point is essential. Be sure to enter an

appropriate value prior to each test. For PP/CP and PP tests, the estimate refers to the pour point,

while in CP tests, the estimate refers to the cloud point.

The Expected cloud/pour point display field in the upper right of the main screen (see Fig. 5 on page

14) consists of five individual fields for input purposes, the sign, a 2-digit integer, the decimal point,

and a single decimal place. Move the cursor (displayed as an underscore) using the left or right arrow

keys and increment or decrement the value of the selected digit using the up and down arrow keys

(the sign field alternates between blank for positive and - for negative).

The maximum value that can be set is 51.0.

When CP test with 1.0°C interval is chosen, the value of the decimal place is ignored, with only the

integer value being of significance. To avoid any confusion, it is suggested that an integral value is

entered in these situations.

If nothing at all is known about the pour or cloud points, it is better to choose a low value. Although

this will result in long measurement times, the results will be accurate.

5.6. Preheating Selection

Preheating refers to heating the specimen to 45°C once before cooling (refer to ASTM D97). As with

the Expected pour/cloud point, this setting should be reviewed prior to each test.

An arrow on the left of the Expected pour/cloud point display indicates if preheating is selected.

" " indicates preheating and " " indicates no preheating. To change this setting, move the cursor

(underscore) with the left and right arrow keys to the preheating arrow and change the setting with

the up or down key.

Preheating should be selected in the Expected pour/cloud point is higher than room temperature.

5.7. Entering Sample Names

To enable sample name input, the instrument must be configured in advance as described in the

attached Maintenance Manual.

When sample name input is enabled, the Sample Name Input Screen (Fig.9 on page 19) may be

accessed by repeatedly pressing the FUNCTION key until the screen is displayed. The order in which

- 19 -

Sample name

AAAAAA

the display cycles with each press of the FUNCTION key is:

Main Display Screen → Details Screen → Sample Name Input Screen → Main Display Screen

When specimen name input is disabled, the Sample Name Input Screen cannot be accessed by pressing

the FUNCTION key.

Be sure to enter the specimen name prior to testing. The cursor can be moved with the left and right

arrow keys, and individual characters changed using the up and down arrow keys.

Fig. 9 Sample Name Input Screen

Sample names can consist of up to six characters, with characters being one of the following 59

characters.

Each unit is initialized to AAAAAA prior to shipping.

A B C D E F G H I J K L M

N O P Q R S T U V W X Y Z

! “ # $ % & ‘ ( ) * + ,

- . / 0 1 2 3 4 5 6 7 8 9

: ; < = > ? @

After testing, the sample name is automatically stored in the data list with the test result (see

Section 7 Data Storage Function on page 27).

When a printer is connected, the sample name is printed with the test result.

This completes the test preparations. For safety reasons, each step should be confirmed before starting a test.

Sample

- 20 -

6. Test Procedure

6.1. Starting a Test

! Warning: If the instrument makes any abnormal noises or exhibits any

abnormal behavior, stop operation immediately, turn the power off at the mains, and contact Tanaka Scientific Limited or an authorized distributor.

Press the START key (3). The RUN lamp will come on, the Expected pour/cloud point is displayed in

the specimen temperature field for three seconds, and testing begins (4).

Note (3)：The START key is disabled while the Details Screen or Sample Name Input Screen are

being displayed. Use the FUNCTION key to cycle through to the main screen before

pressing the START key.

Note (4)：Once testing has begun, test mode, preheating, and Expected pour/cloud point settings

cannot be changed. To change settings, press the RESET key to abort the current test.

From this point, testing proceeds automatically. An explanation of the automatic testing procedure follows.

6.2. Automatic Testing Process

6.2.1. Preheating

※ This process is skipped if preheating is not selected (" " displayed in the preheating display field).

During preheating, both the RUN and WARM lamps will light up and bath heating begins (5).

When the bath has reached the temperature set out below, the WARM lamp extinguishes and

bath cooling begins (5).

<Expected pour/cloud point of over 35.0°C>

The bath is heated to a temperature of "Expected pour/cloud point + 13°C". When the specimen

temperature is 10°C above the Expected pour/cloud point, cooling begins.

<Expected pour/cloud point under 35.0°C>

The bath is heated to 48°C. When the specimen temperature reaches 45°C, cooling begins.

- 21 -

Note (5)：The level of cooling/heating is indicated by a red LED at the upper right of the test unit.

The led is continuously lit to indicate full output (100%), extinguished to indicate no output

(0%), and flashes to indicate any intermediate output levels. As the output level is nearly

always changing, the led is almost always flashing. If the lamp remains dark for an

extended period of time, the thermo-module connections may be faulty.

6.2.2. Light Intensity Measurement Check

※ This step is only applicable to cloud point testing modes (“CP” or “PP/CP” displayed in the test

mode field).

Immediately upon starting the test, the intensity of light incident upon the cloud point sensor is

measured and displayed in the EXP.PP field. This is done during the three seconds that the

Expected pour/cloud point is displayed in the current specimen temperature field.

After three seconds, the current specimen temperature and EXP.PP fields return to normal (6),

with the bath temperature field displaying the following information depending on test mode:

Test mode PP/CP ⇒ The cloud point temperature sensor temperature is displayed (

Fig. 10 ). Test mode PP or CP ⇒ The field is blank.

Note (6): During testing operations, the value displayed in the EXP.PP field can be toggled between

Expected pour point and current cloud point sensor temperature by pressing either the up

or down arrow key.

EXP.PP

-25.0

CP

-13.0-12.3

SAMPLE TEMPPP/CP

L

1. 0

Fig. 10 Cloud Point Temperature Display (Test mode PP/CP only)

If the intensity of light measured by the cloud point sensor is not in the range of 10% to 90%, the

cloud point cannot be tested and the following error messages are displayed:

Test mode PP/CP ⇒ TRBL is displayed in the cloud point temperature field, but pour point testing

continues (see Fig. 11 on page 22).

Test mode CP ⇒ The test ends, and the error message shown in Fig. 12 on page 22 is

displayed.

Cloud point temperature

- 22 -

The intensity of light measured will not fall within the specified range if the sensor is faulty, the

detector is incorrectly set, or there is a problem with the specimen. If the error message continues

despite the sensor functioning correctly and being correctly setup, the specimen itself is the

problem, and cannot be tested using this instrument.

EXP.PP

-25.0

CP

TRBL-12.3

SAMPLE TEMPPP/CP

L

1. 0

Fig. 11 Cloud Point Test Failure Display (Test mode PP/CP)

PHOTO SYSTEM

TROUBLE No.01

Fig. 12 Cloud Point Test Failure Display (Test mode CP)

6.2.3. Air Leak Check

※ This step is only applicable to pour point testing modes (“PP” or “PP/CP” displayed in the test

mode field).

The pour point sensor is checked for air leaks immediately after preheating, if preheating is

enabled, or three seconds after test start otherwise.

If any leaks are found, the test is aborted and the error message shown in Fig. 13 is displayed.

PRESSURE LEAK

TROUBLE No.09

Fig. 13: Air Leak Detected

Trouble

- 23 -

6.2.4. Cooling

The bath is cooled at preset rates, with different rates used above and below the switching

temperature of 40°C (7) above the Expected pour point. The product is shipped to cool at a rate of

4°C/min (7) until the switching temperature is reached and at a rate of 1°C/min (7) thereafter.

Note (7): For instructions on changing bath cooling rates and switching temperature, refer to the

attached Maintenance Manual.

6.2.5. Pour Point Detection Starting Temperature

※ This step is only applicable to pour point testing modes (“PP” or “PP/CP” displayed in the test

mode field).

When the specimen temperature has reached a prescribed temperature (8), the first pour point

detection attempt begins. Detection is repeated at the detection interval chosen prior to testing,

which is shown in the test mode field.

Note (8): Pour point detection start temperature depends on the Expected pour point. If the

Expected pour point is below 30.0°C, a starting temperature of 15 above the Expected pour

point is used, otherwise a starting temperature somewhere in the range of 9°C to 14°C

above the Expected pour point is used.

If the pour point is detected in the first detection attempt, the test ends with the error message

shown in Fig. 15. In this case, a higher value of Expected pour point should be entered and the

test retried.

PP OVER > -10

TROUBLE No.08

Fig. 14: First Attempt for Pour Point Detection

Example error message that is displayed when the Expected pour point is set to -25.0 but the pour

point is detected on the first attempt at a temperature of -10.0°C.

- 24 -

6.2.6. Cloud Point Detection

※ This step is only applicable to cloud point testing modes (“CP” or “PP/CP” displayed in the test

mode field).

The cloud point is detected when the intensity of light measured at the bottom of the specimen cup

drops due to clouding. Cloud point detection occurs at 0.1oC interval or integer values of

temperature as the temperature drops. When 1.0oC interval is selected, the reported cloud point is

the next lower integer. For example, MPC reports cloud point -13.2oC in 0.1oC interval, and then

-14.0oC in 1.0oC interval.

After cloud point detection, will be as follows:

Test mode PP/CP ⇒ The result flashes in the cloud point temperature field (see Fig. 15) (9) while

pour point detection continues.

Test mode CP ⇒ The result flashes in the current specimen temperature field (see Fig. 16) (9).

The RUN lamp is extinguished and a buzzer sounds intermittently for 8 seconds.

EXP.PP

-25.0

CP

-19.0-19.3

SAMPLE TEMPPP/CP

L

1.0

Fig. 15: Cloud Point Detection (Test mode CP/PP)

EXP.CP

-15.0

-19.0

CLOUD POINT CP

Fig. 16: Cloud Point Detection (Test mode CP)

Flashing Decreasing

Flashing

FAST

Appears when a CP is detected in fast cooling sequence.

- 25 -

6.2.7. Pour Point Detection

※ This step is only applicable to pour point testing modes (“PP” or “PP/CP” displayed in the test

mode field).

When specimen flow is found to have stopped (see Section 2 on page8), the pour point

temperature flashes in the current specimen temperature field (see Figure 17 and see Figure 18)

(9). The RUN lamp is extinguished and a buzzer sounds intermittently for 8 seconds.

EXP.PP

-25.0

CP

-19.0-25.0

SAMPLE TEMPPP/CP

L

1. 0

Fig. 17: Pour Point Detection (Test mode PP/CP)

EXP.PP

-25.0

-25.0

SAMPLE TEMPPP

L

1. 0

Fig. 18: Pour Point Detection (Test mode PP)

Note (9): Measured cloud points and pour points are displayed until either the RESET or START

key is pressed. Upon pressing either the RESET or START keys, the results are cleared

from the display, which returns to normal, and are stored in the last test results fields,

which can be seen in the details screen.

Flashing Flashing

Flashing

- 26 -

6.2.8. Data Printouts

※ This step is only applicable if an optional printer is connected.

After pour/cloud point detection, the Expected pour/cloud point and measured point are

automatically printed. To print detailed experimental information, such as such as specimen

temperature and pressurization times during testing, press the START key once after the

summary data has printed (10).

Note, however, that data cannot be printed after the RESET key has been pressed.

Note (10): The instrument can be modified to automatically print detailed experimental data after

every test run. For details, refer to the Maintenance Manual.

6.2.9. Bath Heating

After pour/cloud point detection, bath heating begins to return the specimen to room

temperature (WARM lamp lights) (11)The bath is heated quickly to a temperature of 20°C (12)and

held at that temperature for 3 minutes (12). To stop the heating process, press the RESET key.

Note that this will also clear the test results from the display. After the specified time of 3 minutes,

the WARM lamp is extinguished, heating stops and a buzzer sounds intermittently for 8 seconds.

To begin heating after heating has finished or been aborted, press the WARM key.

Note (11)：If the bath temperature is over 20°C when testing completes, the WARM lamp turns on,

but no heating is performed. This continues for 3 minutes.

Note (12)：Both the temperature and duration of heating can be modified. For details, refer to the

Maintenance Manual.

This completes the automatic testing process.

To perform another test, return to Part 5.3: Specimen Preparation on page 15.

To finish using the instrument, simply turn off the main switch.

- 27 -

7. Data Storage Functionality

This instrument has the capacity to automatically store the results of the last 50 tests.

To access the results history, press and release the RESET key while holding down the MODE key.

The Test History Screen shown in Fig. 19 is displayed.

The most recent test results are always shown as data No.1, with data id numbers in increments of

one. Data recorded more than 50 test runs ago is discarded. Result sets can be scrolled through by

pressing the up and down arrow keys.

No.1 DATE:03/02/13 11:15

Sample: UVWXYZ

MODE:PP/CP , L,1.0

PP:-28.0 CP:-10.0

No.30 DATE:02/12/12 16:24

Sample: AAAAAA

MODE:PP ,UH,3.0

PP:- 6.0 CP:

Fig. 19 Test History Screen

If the optional clock card is not installed, the date and time fields will all show 01/01/01 01:01.

The specimen name field always shows a value, even when specimen name input is disabled. (In this

case AAAAAA will typically be displayed as it is the default value).

If the optional printer is connected, pressing the FUNCTION key will print the entire test history.

Oldest data

Latest data

- 28 -

8. Maintenance and Post-sales Servicing

8.1. Periodic Maintenance

This instrument is fully inspected and calibrated prior to shipping, and should require no readjustment

immediately upon delivery.

To ensure high performance and maximum safety, however, the instrument needs to be maintained

and adjusted periodically. For more details on maintenance and recalibration techniques, refer to the

attached Maintenance Manual.

8.2. Consumables and Accessories

! Caution: Use only Tanaka Scientific Limited genuine consumables, parts and accessories or such parts as recommended by Tanaka Scientific Limited.

For orders and inquiries about consumables, parts and accessories for this instrument, contact

Tanaka Scientific Limited or an authorized distributor. Contact details are provided with the product

warranty at the end of this manual.

When placing an order, be sure to quote the product model "MPC-102A" or “MPC-102L”.

The most commonly used consumables and accessories are listed in Table 3

Table 3: Consumables and Accessories for Model MPC-102A/102L

・ Compound detector

・ Specimen Cup with Reflex Seal

・ Reflex Seal

・ Pressure Conducting Tube

・ O-Ring G-35 (cooling bath flange)

・ O-Ring P-8 (to secure pressure conducting

tube)

For details on replacing consumables, refer to the Maintenance Manual.

- 29 -

8.3. Troubleshooting

! Warning: Do not make any modifications or alterations to the instrument without the approval of Tanaka Scientific Limited.

! Warning: Do not attempt to repair the instrument yourself. In the event that the instrument exhibits any abnormal behavior whatsoever, contact Tanaka Scientific Limited or an authorized distributor.

! Warning: Only Tanaka Scientific Limited service personnel or authorized representatives are to repair or maintain the instrument.

Should the instrument become faulty, contact Tanaka Scientific Limited or an authorized distributor.

Contact details are provided with the product warranty at the end of this manual.

Provide as much information as possible about the problem.

Equipment failures will be resolved in one of three ways:

1. Tanaka Scientific Limited will send a replacement part to the local distributor or directly to the

customer. The user or local distributor executes replacements and inspections.

2. The customer will need to send part or all of the faulty equipment to Tanaka Scientific Limited for

repairs.

In some metropolitan areas, our sales staff may pickup the equipment from the customer.

To troubleshoot simple problems, refer to the attached Maintenance Manual.

8.4. Period of Warranty

This instrument will be guaranteed for a period of one year from the date of delivery.

For details, see the Product Warranty at the end of this manual.

8.5. Period of Availability of Maintenance Tools

The tools and parts necessary for maintenance of this instrument are guaranteed to be held by

Tanaka Scientific Limited for a period of five years from the date of delivery of the instrument.

- 30 -

9. Post-delivery Notes

9.1. Long Periods of Dormancy When the instrument is not used for a long period of time, unplug the power cord from the

outlet.

It is recommended that the instrument is covered when in storage to reduce the impact of dust

and moisture.

9.2. Lost Instruction Manuals This manual and the Maintenance Manual are part of the instrument. Should you lose either

manual, contact Tanaka Scientific Limited or an authorized distributor for a new copy.

For safety, keep a copy of the address and telephone number of Tanaka Scientific Limited or

an authorized distributor.

9.3. Transfer When transferring this instrument to a third party, be sure to contact Tanaka Scientific Limited

if the voltage or frequency of the power supply needs to be changed.

Be sure to transfer the instrument with this manual and the Maintenance Manual.

9.4. Disposal This instrument does not contain any hazardous materials, and can be disposed of as ordinary

industrial waste.

- 31 -

10. Specifications Related Specifications: Pour point test standards: ASTM D 6749, D97, ISO 3016

Cloud point test standards: ASTM D 2500, ISO 3015

Type: Bench Top, Air cooled (MPC-102A) or Liquid cooled (MPC-102L), Single position

Testing Limitations: MPC-102A 51°C to -30°C (at room temperature: 20°C)

PC-102L 51°C to -65°C (when -35°C coolant is circulated using the optional

Coolant Circulation Device TCU-40)

51°C to -40°C (with tap water)

Built-In Testing Modes: 25 built-in modes

Preheating System: Built-in preheating function for heating the bath to either 45°C or "10°C above the

Expected pour/cloud point", whichever is higher, before cooling

Program Control System: Sequence control by microcomputer

Display Type: Fluorescent display (VFD module). Temperature display: Units of 0.1°C

Temperature Sensor: Platinum resistance sensor, 100Ω/0°C (Pt100)

Detector Unit: Compound detector (Temperature sensor, pour point sensor, and cloud point

sensor assembled in a resin detector housing)

Temperature Sensor: Platinum resistance thermometer sensor consisting of two stainless sheath

elements 100Ω/0°C (PT100)

Pour Point Sensor: Detection Method: Changes in the specimen surface by applying fine pressure

via a pressure conducting tube detected by a pressure switch (micro pressure

sensor) (Patented)

Air Pressure System: A pressurizing syringe and solenoid valve

Testing Intervals: Every 1°C, 2.5°C, or 3°C (Selection by mode)

Cloud point sensor: Detection Method: Detects light reflected from a reflector located on the bottom

of the specimen cup

Photoelectric detector: Consists of a LED, phototransistor, and light-receiving

amplifier

Testing Interval: Every 1°C or 0.1°C (selectable)

Testing Container: Flat-bottom borosilicate-1 (∅21×45L) specimen cup with a reference mark for

4-ml specimen

Reflection seal attach to the bottom for cloud point detection

Temperature Control Unit: Structure: Aluminum block cooled with Peltier cooler

Cooling rate: Separate setting from 1 to 5 °C/min (in increments of 1 °C/min) for

temperatures above and below a switching temperature(13). Depending on

temperature range and radiation efficiency, actual cooling rates may be lower

than selected. The instrument is shipped with cooling rates of 4 °C /min above

the switching temperature and 1°C /min below. Note(13)：The cooling rate switching temperature can be changed relative to the Expected

- 32 -

pour/cloud point. At shipping, the switching temperature is set to 40°C above the Expected pour/cloud point.

Safety and self-diagnosis systems:

1. If the temperature on the hot side of the Peltier cooler exceeds 60°C,

a warning buzzer sounds and the power supply is automatically cut to

prevent fire hazards.

2. The following error conditions are automatically detected, and

displayed on the main screen, accompanied by an intermittent buzzer:

・ Temperature sensor line cuts are detected.

・ The intensity of light detected by the cloud point detection sensor is

incorrect.

・ The internal battery that maintains internal memory settings is

getting flat. (Tested at power-on only)

3. Computer runaway (Buzzer sounding only)

・ Some kind of circuit failure is detected.

Data Outputs: Supporting LAS RS-232C × 1ch (standard)

Remarks: One additional channel available as an option (program

alteration necessary). Power Supply: 100/120 or 220/240 VAC (Factory setted) 50/60 Hz 0.5 kW

Dimensions and Weights: Control unit: W230×D455×H110 mm Approx. 6.0 kg

Test unit: W230×D480×H275 mm Approx. 18.0 kg

Minimum Footprint: W300×D550 mm

Standard Accessories: Specimen Cup with Reflex Seal ································································································· 5 pcs Insulator Pad ······························································································································ 1 pc Spare Pressure Conducting Tube ······························································································ 1 pc AC Power Cord ························································································································· 1 pc Connection cable (power) 0.6m ································································································· 1 pc Connection cable (signal) 0.6m·································································································· 1 pc Instruction manual ······················································································································ 1 copy Maintenance manual ·················································································································· 1 copy <Above common to MPC-102A and MPC-102L> Coolant circulation hose ∅10×∅14 2m [with insulation pipe] ···················································· 2 pcs Hose Clamps ······························································································································ 4 pcs Dripping plate ····························································································································· 1 pc

<Above for MPC-102L only>

- 33 -

Optional Accessories:

・ Extension cables (power and signal) 3m

⇒ For use when the control unit and test unit are located separately

・ Printer Model BS2-80TS made by Sanei Electric (connected to the

RS-232C output port)

⇒ Prints pour/cloud point test results and Expected pour/cloud points

Paper Size: 80 mm wide, ∅38 mm, 15 m long (Paper Roll)

One roll can store 250 tests

(No details printed in PP/CP mode)

Power Supply: AC Adapter Input: 100-120or 220-240 VAC,

50/60 Hz, 20 W max

Output: DC 6V, 1500 mA

Dimensions and Weight: 134(W) x 60(H) x 180(D)mm/ approx. 450g

Included Parts: Connection cable……….1 m

Paper Roll………………. 1 roll

・ Clock board (Mounted on the main board in the control unit)

⇒ Necessary for printing test dates and times when the printer is

connected

・Coolant circulation device for MPC-102L (Recommended by Tanaka Scientific Limited) Model : TCU-40 Ultra-low temperature bath circulator made by Tanaka Scientific Limited. Bath Capacity: Approx. 8.0L Power Supply: 120 or 220-240 VAC 50/60 Hz 500W Dimensions and Weight: 320(W) x 590(D) x 725(H) mm Approx. 60.0 kg

・Water pressure regulator with pressure gauge: Necessary when a tap water line is connected

instead of coolant circulation device(s).

*Pressure regulator: Pressure regulator valve with a lock

*Pressure gauge: 0-400kPa. (Normally set at 50kPa.)

- 34 -

Product Warranty

1. This product has passed a quality assurance inspection to the standards of Tanaka Scientific

Limited.

2. This product will be warranted for a period of one year from the date of delivery.

To avoid later confusion, be sure to enter the date of delivery in warranty ticket below.

3. If any faults occur due to normal use within the warranty, the product will be repaired free of charge.

4. Be sure to notify Tanaka Scientific Limited when repairs being requested are covered under the

warranty.

5. The following faults or damage are not covered by the warranty:

・ Any fault or damage arising from failure to adhere to all warnings and precaution as described

in the instruction manual

・ Any fault or damage arising from misuse or carelessness

・ Any fault or damage arising from repairs or alterations unauthorized by Tanaka Scientific

Limited

・ Any fault or damage arising from falls or accidents during transportation after the initial

delivery

・ Any fault or damage arising from external causes, such as fire, act of God (earthquake, storm,

or flood), environmental contamination, or power supply variations

6. All other repairs, consumables and accessories are chargeable.

Product Name Mini-Pour/Cloud Point Tester

Control unit (MPC-102-C) No.

Model Name MPC-102 Serial No. Test unit (MPC-102L-T or MPC-102A-T)

No.

Warranty

Period One year from the date of delivery:

Manufactured and sold by: Tanaka Scientific Limited

Contact: 7-10-3, Ayase, Adachi-ku, Tokyo 120-0005 T E L ：+81-3-3620-1711 F A X ：+81-3-3620-1713 E - m a i l ：sales@tanaka-sci.com

Distributor: