Milwaukee MW102-FOOD Portable pH/Temperature Meter Instruction Manual
- June 11, 2024
- Milwaukee
Table of Contents
MW102-FOOD Portable pH/Temperature Meter
Product Information
The MW102 PRO+ Portable 2-in-1 pH/Temperature Meter is a handheld device that can measure pH and temperature. It comes with several optional accessories, including buffer solutions, storage and cleaning solutions, rinse solution sachets, a pH electrode with BNC connector and 1 m cable, and a temperature probe. The meter has automatic calibration at 1 or 2 points and uses a pH electrode SE-220 and MA830R temperature probe. It is powered by a 9V alkaline battery and has a battery life of approximately 750 hours of use. The meter has an auto-off feature that turns it off after 8 minutes of non-use. It is compact in size, measuring 143 x 80 x 32 mm and weighs 220 g (with battery).
Product Usage Instructions
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Ensure that the meter is entirely suitable for the specific application and environment in which it will be used.
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Remove the battery compartment cover on the back of the meter and install the included 9V alkaline battery while observing polarity.
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Remove the electrode protective cap before taking any measurement. If the electrode has been left dry, soak the tip (bottom 2.5 cm) in rinse solution (M10000B) for a few minutes to reactivate it.
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Connect the pH electrode and the temperature probe to the sockets on the meter’s top. The temperature probe can be used independently to take temperature measurements, or it can be used in conjunction with the pH electrode to utilize the meter’s ATC capability.
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Turn on the meter by pressing the ON/OFF key.
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Before taking any measurements, ensure that the meter has already been calibrated.
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Immerse the tip (2.5 cm) of the pH electrode into the sample and stir gently.
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The pH measurement is ready when the hourglass symbol turns off. To display the measured temperature, press and hold the °C key.
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When the key is released, the display will return to the pH reading.
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To freeze the measured value on the display, activate the HOLD function by pressing the HOLD key. Release HOLD by pressing HOLD key again.
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After completing measurements, switch off the meter and store the electrode with a few drops of storage solution in the protective cap.
Error message on display:
- Blinking full scale value: reading is out of range;
- “Eb”: battery low voltage indication;
- “Ec”: wrong buffer solution;
- “Ec” together with “ °C ” blinking: the temperature of the calibration is out of accepted range.
- “Clr”: the calibration data have been lost and recalibration is needed.
Calibration Procedure
The meter has automatic calibration at 1 or 2 points. To calibrate it manually, follow these steps:
- Select two pH calibration buffers: pH 7.01 and a second to bracket your measurement range. pH 4.01 (MA9004) for measuring in the acid range (pH lower than 7) or pH 10.01 (MA9010) for measuring in the alkaline range (pH higher than 7).
- Use two beakers for each reference solution. One beaker for rinsing the electrode, the other for calibration. This way contamination between solutions during calibration is minimized.
- Activate the calibration mode by pressing the CAL key.
- The display will show “CAL” and the buffer value to be calibrated (e.g., pH 7.01).
- Immerse the pH electrode into the first buffer solution and stir gently. Wait for the reading to stabilize.
- Press ENTER to confirm calibration at that point. The display will show “END” and “pH x.xx” (the calibrated pH value).
- Rinse the electrode with distilled water and immerse it into the second buffer solution. Repeat the calibration process.
- When the calibration is complete, the display will show “CAL END”.
OPERATION
- The meter is supplied complete with a 9V battery. Slide off the battery compartment cover on the back of the meter and install the battery into battery clip connector while observing polarity.
- Always remove the electrode protective cap before taking any measurement. If the electrode has been left dry, soak the tip (bottom 2.5 cm) in rinse solution (M10000B) for a few minutes to reactivate it.
- Connect the pH electrode and the temperature probe to the sockets on the meter’s top. The temperature probe can be used independently to take temperature measurements, or it can be used in conjunction with the pH electrode to utilize the meter’s ATC capability.
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Preparation:
Select two pH calibration buffers: pH 7.01 and a second to bracket your measurement range.- pH 7.01 (MA9007)
- pH 4.01 (MA9004) for measuring in the acid range (pH lower than 7) or pH 10.01 (MA9010) for measuring in the alkaline range (pH higher than 7).
Use two beakers for each reference solution.
One beaker for rinsing the electrode, the other for calibration. This way contamination between solutions during calibration is minimized.
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Procedure:
Offset calibration-
Remove the electrode protective cap and rinse the tip with some pH 7.01 solution, then immerse the electrode tip and the temperature probe into a pH 7.01 buffer solution.
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Press the CAL key to enter the Calibration mode.
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The display flashes “pH 7.01” and the hourglass lights up.
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Wait till the hourglass symbol on the display turns off and the “pH” tag stops blinking, then press the CFM key to confirm the offset calibration.
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Note: Pressing the CAL key again will change the buffer value, allowing a single point calibration at pH 4.01 or pH 10.01.
Slope Calibration
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After completing the pH 7.01 calibration the next buffer pH 4.01 will flash on the display.
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Press CAL key to display pH 10.01 if desired.
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Rinse the pH electrode and the temperature probe in the rinse buffer beaker, then immerse them into the second buffer beaker.
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Wait till the hourglass symbol on the LCD turns off, then press the CFM key to confirm the slope calibration.
Notes: To exit the calibration mode, turn the meter off by pressing the
ON/OFF key.
To perform a single point calibration (offset) at pH 7.01, press the ON/OFF
key when the second buffer is displayed.
BATTERY REPLACEMENT
When the batteries become weak, the battery symbol on the LCD starts blinking
to advise that only a few hours of working time is remaining.
The meter is also provided with BEPS (Battery Error Prevention System), which
avoids any erroneous reading due to low battery level. The instrument will
display “Eb” for a while and then turn off.
Prompt battery replacement is required.
Battery replacement must only take place in a non-hazardous area using a 9V
alkaline battery.
Turn the meter off, slide the battery compartment cover located at the rear of the meter off and replace the 9V battery with a new one.
Make sure the battery contacts are fully engaged in the connector, seat the battery in its compartment and replace the cover.
OPTIONAL ACCESSORIES
- MA9004: pH 4.01 buffer solution, 230 mL bottle
- MA9007: pH 7.01 buffer solution, 230 mL bottle
- MA9010: pH10.01 buffer solution, 230 mL bottle
- MA9015: Electrode storage solution, 230 mL bottle
- MA9016: General cleaning solution, 230 mL bottle
- M10000B: Rinse solution, 20 mL sachet (25 pcs.)
- SE-220: pH electrode with BNC connector and 1 m cable
- MA830R: Temperature probe
SPECIFICATIONS
- RANGE: – 2.00 to 16.00 pH and – 5.0 to 105.0°C
- RESOLUTION: 0.01 pH / 0.1°C
- ACCURACY (@25°C): ±0.02 pH / ±0.5°C
- TYPICAL EMC DEV.: ±0.02 pH / ±0.5°C
- TEMPERATURE COMPENSATION: Automatic, -5.0 to 105.0°C
- CALIBRATION: Automatic, at 1 or 2 points
- pH ELECTRODE: SE-220 (included)
- TEMPERATURE PROBE: MA830R (included)
- ENVIRONMENT: 0 to 50°C; RH 95% max.
- BATTERY TYPE: 1 x 9V alkaline (included)
- BATTERY LIFE: approx. 750 hours of use
- AUTO-OFF: after 8 minutes of non-use
- DIMENSIONS: 143 x 80 x 32 mm
- WEIGHT: 220 g (with battery)
CERTIFICATION
Milwaukee Instruments conform to the CE European Directives.
Disposal of Electrical & Electronic Equipment. Do not treat this product
as household waste. Hand it over to the appropriate collection point for the
recycling of electrical and electronic equipment.
Disposal of waste batteries. This product contains batteries.
Do not dispose of them with other household waste. Hand them over to the
appropriate collection point for recycling.
Please note: proper product and battery disposal prevents potential
negative consequences for human health and the environment. For detailed
information, contact your local household waste disposal service or go to
www.milwaukeeinstruments.com (USA &
CAN) or www.milwaukeeinst.com.
RECOMMENDATION
Before using this product, make sure it is entirely suitable for your specific application and for the environment in which it is used. Any modification introduced by the user to the supplied equipment may compromise the meter’s performance. For your and the meter’s safety do not use or store the meter in hazardous environment. To avoid damage or burn, do not perform any measurement in microwave ovens.
WARRANTY
This instrument is warranted against defects in materials and manufacturing
for a period of 2 years from the date of purchase. Probe is warranted for 6
months. This warranty is limited to repair or free of charge replacement if
the instrument cannot be repaired. Damage due to accidents, misuse, tampering
or lack of prescribed maintenance is not covered by warranty. If service is
required, contact your local Milwaukee Instruments Technical Service. If the
repair is not covered by the warranty, you will be notified of the charges
incurred. When shipping any meter, make sure it is properly packaged for
complete protection.
Milwaukee Instruments reserves the right to make improvements in design,
construction and appearance of its products without advance notice.
Documents / Resources
|
Milwaukee MW102-FOOD Portable pH/Temperature
Meter
[pdf] Instruction Manual
MW102-FOOD Portable pH Temperature Meter, MW102-FOOD, Portable pH Temperature
Meter, pH Temperature Meter, Temperature Meter
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References
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