Milwaukee MW102 - User Manual

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USER MANUAL

MW102

PRO pH/Temperature

Meter

milwaukeeinstruments.com (USA & CAN)

milwaukeeinst.com

OPTIONAL ACCESSORIES

MA9004 pH 4.01 buer solution, 230 mL bottle

MA9007 pH 7.01 buer solution, 230 mL bottle

MA9010 pH10.01 buer 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

-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.

SATISFACTION

GUARANTEED

ISTMW102 07/20

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Summary

Certification and Disposal

Disposal of Electrical and Electronic Equipment

Information on proper disposal of electrical and electronic equipment according to EU directives.

Disposal of Waste Batteries

Guidelines for disposing of product batteries to prevent environmental harm.

Recommendation and Warranty

Recommendation

Advice for using the product safely and effectively in its intended environment.

Warranty

Details on the product's warranty coverage and conditions for repair or replacement.

Operation and Maintenance

Error Message Display

Explains various error codes displayed by the meter and their meaning.

Calibration Procedure

Step-by-step guide for calibrating the pH meter using buffer solutions.

Battery Replacement

Instructions for replacing the meter's 9V battery when it becomes weak.

Summary

Certification and Disposal

Disposal of Electrical and Electronic Equipment

Information on proper disposal of electrical and electronic equipment according to EU directives.

Disposal of Waste Batteries

Guidelines for disposing of product batteries to prevent environmental harm.

Recommendation and Warranty

Recommendation

Advice for using the product safely and effectively in its intended environment.

Warranty

Details on the product's warranty coverage and conditions for repair or replacement.

Operation and Maintenance

Error Message Display

Explains various error codes displayed by the meter and their meaning.

Calibration Procedure

Step-by-step guide for calibrating the pH meter using buffer solutions.

Battery Replacement

Instructions for replacing the meter's 9V battery when it becomes weak.

The Milwaukee MW102 PRO pH/Temperature Meter is a portable instrument designed for accurate pH and temperature measurements. It is a robust device suitable for various applications, from laboratory use to field measurements, offering a blend of precision and user-friendly features.

Function Description

The primary function of the MW102 is to measure pH and temperature. It utilizes a pH electrode with a BNC connector and a separate temperature probe to achieve these measurements. The device is capable of displaying pH readings over a wide range and temperature readings in Celsius. A key feature is its Automatic Temperature Compensation (ATC), which ensures that pH readings are accurate regardless of sample temperature fluctuations. This is achieved by the integrated temperature probe, which can also be used independently for temperature-only measurements. The meter is powered by a 9V alkaline battery, providing extended operational time.

Usage Features

The MW102 is designed for ease of use, with several features that streamline the measurement process:

Simple Operation: To begin, the user connects the pH electrode and temperature probe to the meter's top sockets. The instrument is turned on by pressing the ON/OFF key. Before taking measurements, it is crucial to ensure the meter has been properly calibrated.
Measurement Procedure: Once the electrode and probe are immersed in the sample, the pH measurement is ready when an hourglass symbol on the display turns off, indicating a stable reading. The temperature can be displayed by pressing and holding the "°C" key; releasing it returns the display to the pH reading.
Hold Function: For convenience, the meter includes a HOLD function. Pressing the HOLD key freezes the current measured value on the display, and a "HOLD" tag illuminates. Releasing the key resumes live readings.
Calibration Procedure: The MW102 supports both offset and slope calibration, ensuring high accuracy. Calibration is performed using standard pH buffer solutions (pH 7.01, and either pH 4.01 or pH 10.01, depending on the measurement range). The process involves immersing the electrode and probe into the buffer solution, entering calibration mode via the CAL key, and confirming the calibration with the CFM key once the reading stabilizes. The meter guides the user through the calibration steps, flashing the required buffer value on the display. It also allows for single-point calibration at pH 7.01 if desired.
Error Messages: The device provides clear error messages to inform the user of potential issues. These include blinking full-scale values for out-of-range readings, "Eb" for low battery, "Ec" for incorrect buffer solutions, and "Ec" with blinking "°C" if the calibration temperature is out of range. A "Clr" message indicates that calibration data has been lost, necessitating recalibration.
Automatic Shut-off: To conserve battery life, the MW102 features an auto-off function, which powers down the device after 8 minutes of inactivity.
Battery Error Prevention System (BEPS): This system prevents erroneous readings due to low battery levels. When the battery is weak, the battery symbol on the LCD blinks, and the meter will display "Eb" before automatically turning off, prompting the user for battery replacement.

Maintenance Features

Proper maintenance is essential for the longevity and accuracy of the MW102 meter and its probes:

Electrode Care: Before each measurement, the electrode protective cap must be removed. If the electrode has dried out, it should be reactivated by soaking its tip in rinse solution for a few minutes. After measurements are complete, the meter should be switched off, and the electrode stored with a few drops of storage solution in its protective cap to prevent drying and maintain its performance.
Battery Replacement: The meter is powered by a 9V alkaline battery. When the battery symbol blinks or the "Eb" message appears, prompt battery replacement is required. This should be done in a non-hazardous area. The battery compartment cover, located at the rear of the meter, slides off, allowing the user to replace the battery. It is important to ensure the battery contacts are fully engaged in the connector and the battery is properly seated before replacing the cover.
Cleaning: General cleaning solution (MA9016) is available for maintaining the pH electrode.
Disposal: The MW102 conforms to CE European Directives regarding the disposal of electrical and electronic equipment, as well as waste batteries. Users are advised not to treat these as household waste but to hand them over to appropriate collection points for recycling. This ensures proper disposal and prevents potential negative consequences for human health and the environment.
Warranty: The instrument comes with a 2-year warranty against defects in materials and manufacturing, while the probe is warranted for 6 months. This warranty covers repair or free replacement if the instrument cannot be repaired, but it does not cover damage due to accidents, misuse, tampering, or lack of prescribed maintenance. For service, users should contact their local Milwaukee Instruments Technical Service. When shipping the meter for service, it should be properly packaged for complete protection.

Milwaukee MW102 Specifications

General

Category	pH Meter
Model	MW102
Dimensions	145 x 80 x 38 mm
Weight	220 g
Display	LCD
Range	0.0 to 14.0 pH
Environment	0 to 50°C (32 to 122°F)
Input Impedance	10¹² Ohm