Milwaukee MW180 MAX Instruction Manual
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Milwaukee MW180 MAX Instruction Manual

Ph/mv/ec/tds/nacl/temperature bench meter
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INSTRUCTION MANUAL
MW180 MAX
r ature
pH / mV / EC / TDS / NaCl / Tempe
Bench Meter
SATISFACTION
GUARANTEED

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  • Page 1 INSTRUCTION MANUAL MW180 MAX r ature pH / mV / EC / TDS / NaCl / Tempe Bench Meter SATISFACTION GUARANTEED...
  • Page 2 This instruction manual will provide you the necessary information for correct use of the meter. All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Milwaukee Instruments Inc., Rocky Mount, NC 27804 USA.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. PRELIMINARY EXAMINATION ...........................5 2. INSTRUMENT OVERVIEW ............................5 3. SPECIFICATIONS ................................6 4. FUNCTIONAL & DISPLAY DESCRIPTION ......................8 5. PROBE DESCRIPTION ..............................11 6. GENERAL OPERATIONS .............................14 6.1. POWER CONNECTION & BATTERY MANAGEMENT ................14 6.2. MOUNTING THE ELECTRODE HOLDER ....................14 6.3.
  • Page 4 4 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 11. SALINITY ..................................44 11.1. PREPARATION ..............................44 11.2. CALIBRATION ..............................44 11.3. MEASUREMENT ..............................45 11.4. WARNINGS & MESSAGES ........................... 47 12. LOGGING ..................................49 12.1. TYPES OF LOGGING ............................50 12.2.

  • Page 5: Preliminary Examination

    INSTRUMENT OVERVIEW 5 1. PRELIMINARY EXAMINATION Each bench meter is delivered in a cardboard box and is supplied with: y MA917B/1 Double junction refillable pH electrode y MA814DB/1 – 4-ring EC/TDS/NaCl/Temperature probe y MA831R Stainless steel temperature probe y M10004 pH 4.01 buffer solution (sachet) y M10007 pH 7.01 buffer solution (sachet) y M10010 pH 10.01 buffer solution (sachet) y M10016 Electrode cleaning solution (sachet)

  • Page 6: Specifications

    6 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 3. SPECIFICATIONS Range Resolution Accuracy Calibration @ 25 °C (77 °F) -2.00 to 20.00 pH 0.01 pH ±0.01 pH Up to 5-point automatic -2.000 to 20.000 pH 0.001 pH ±0.002 pH pH calibration, 7 standard calibration...
  • Page 7 SPECIFICATIONS 7 PC connectivity 1 USB port, 1 micro USB port Power supply 12 VDC adapter (included) Battery type internal Battery life 8 hours Environment 0 to 50 °C; maximum RH 95% Dimensions 230 x 160 x 95 mm (9.0 x 6.3 x 3.7”) Weight 0.9 kg (2.0 lb.) Warranty...

  • Page 8: Functional & Display Description

    8 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 4. FUNCTIONAL & DISPLAY DESCRIPTION Front Panel 1. Liquid Crystal Display (LCD) 2. ESC key, to exit current mode 3. RCL key, to recall the logged values 4.
  • Page 9 FUNCTIONAL & DISPLAY DESCRIPTION 9 Rear Panel 1. Power supply socket 2. USB type A socket 3. Micro USB socket 4. DIN probe connector 5. Reference electrode connector 6. RCA connector for temperature probe 7. BNC electrode connector...
  • Page 10 10 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Display Description 1. Measurement units 2. Stability indicator 3. DATE tag 4. USB connection status 5. pH calibration buffers 6. Probe symbol and probe condition 7.

  • Page 11: Probe Description 11

    PROBE DESCRIPTION 11 5. PROBE DESCRIPTION MA917B/1 for pH measurement. y Double junction design, reduces risk of clogging with the reference cell physically separated from the intermediate electrolyte. y Refillable, with MA9011 3.5M KCl. This solution is silver free. Silver can cause silver precipitate to form at the junction resulting in clogging.
  • Page 12 12 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter MA814DB/1 for conductivity, TDS, salinity and temperature measurement. y Direct signal processing for noise-free measurements y Accurate and integrated temperature measurement 1. O-ring 2. Plastic insulator 3.
  • Page 13 PROBE DESCRIPTION 13 MA831R for temperature measurement and automatic temperature compensation (ATC). y Made of stainless steel for corrosion resistance y Used in conjunction with the pH electrode to utilize the instrument’s ATC capability 1. Cable 2. Handle 3. Stainless steel tube...

  • Page 14: General Operations

    14 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 6. GENERAL OPERATIONS 6.1. POWER CONNECTION & BATTERY MANAGEMENT MW180 has a built-in rechargeable battery that provides up to 8 hours of use. The internal battery recharges with the supplied 12 VDC adapter or while connected to a PC USB port or standard 5V USB charger.

  • Page 15: Electrode Care & Maintenance

    GENERAL OPERATIONS 15 6.3.3. MA831R Temperature Probe MA831R is connected to the meter through a RCA connector (labeled Temp.) With the meter off: y Connect the probe to the RCA socket on the top right of the meter. y Push the plug into the socket. y Place the probe into the holder and secure the cable in clips.
  • Page 16 The slope percentage is referenced to the ideal slope value at 25 °C. Milwaukee Instruments recommends that the offset does not exceed ±30 mV and that the slope percentage is between 85-105%.
  • Page 17 GENERAL OPERATIONS 17 5 bars Excellent condition 4 bars Very good condition 3 bars Good condition 2 bars Fair condition 1 bar Poor condition 1 bar blinking Very poor condition no bar Not calibrated Recommendations: y 1 bar: Clean the electrode and recalibrate. If there is still only 1 bar or 1 bar blinking after recalibration, replace the probe.

  • Page 18: Setup

    18 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 7. SETUP 7.1. MEASUREMENT MODES MW180 can switch between measurement modes from the measurement screen. Available options for setup, calibration and measurement will depend on selected mode. y Press RANGE/...

  • Page 19: General Setup Options

    SETUP 19 7.2. GENERAL SETUP OPTIONS Options available from any measurement mode, with or without a probe connected. Log Type Options: INTERVAL (default), MANUAL or STABILITY Press RANGE/ to select between options. Use  keys to set time interval: 5 (default), 10, 30 sec. or 1, 2, 5, 15, 30, 60, 120, 180 min. Use ...
  • Page 20 20 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Date Options: year, month or day Press RANGE/ to select options. Use  keys to modify the values. Time Options: hour, minute or second Press RANGE/ to select. Use  keys to modify the values. Auto Off Options: 5, 10 (default), 30, 60 minutes or off Use ...
  • Page 21 SETUP 21 Sound Options: enable (default) or disable Use  keys to select. When pressed, each key will emit a short acoustic signal. Temperature Unit Options: °C (default) or °F Use  keys to select the unit. LCD Contrast Options: 1 to 9 (default) Use ...
  • Page 22 22 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Default Values Resets meter settings to factory defaults. Press GLP/ACCEPT to restore the default values. “RESET DONE” message confirms that the meter performs with default settings. Instrument Firmware Version Displays the installed firmware version.

  • Page 23: Ph Mode Setup Options

    SETUP 23 Export to PC / Log on Meter Options: Export to PC and Log on Meter With the micro USB cable connected, press SETUP. Press CAL/EDIT to enter Edit mode. Use  keys to select. Note: This option is only available while connected to a PC. The USB/PC icon is not displayed if LOG ON METER option was previously set.
  • Page 24 24 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter First Custom Buffer Press RANGE/ to set a default buffer value as starting value. Use  keys to set the value of the first custom buffer. Second Custom Buffer Press RANGE/...

  • Page 25: Ec Mode Setup Options

    SETUP 25 Out of Calibration Range Options: On (default) or Off (disabled) Use  keys to select. 7.4. EC MODE SETUP OPTIONS y EC/TDS/NaCl/Temperature probe connected press RANGE/ on the measurement screen to select CONDUCTIVITY, TDS, SALINITY to enter EC mode. Temperature Compensation Options: ATC (default), MTC or NO TC Press RANGE/...
  • Page 26 26 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter EC Temperature Coefficient (T.Coef.) Options: 0.00 to 6.00 (1.90 default) With the probe connected, use  keys to change the value. EC Temperature Reference (T.Ref.) Options: 25 °C (default) and 20 °C With the probe connected, use  keys to change the value.
  • Page 27 SETUP 27 EC Temperature Coefficient / Reference View Options: T.Coef.(%/°C) or T.Ref.(°C) (default) With the probe connected, use  keys to change between Temperature Coefficient and Temperature Reference. EC Range Options: AUTO (default), 29.99 µS/cm, 299.9 µS/cm, 2999 µS/cm, 29.99 mS/cm, 200.0 mS/cm Note: Absolute conductivity —...
  • Page 28 28 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter TDS Range Options: AUTO (default), 14.99 mg/L, 149.9 mg/L, 1499 mg/L, 14.99 g/L, 100.0 g/L Note: Absolute TDS — up to 400.0 g/L (with 0.8 factor) — is the TDS value without temperature compensation.

  • Page 29: Preparation

    pH 29 8. pH Press RANGE/ from the measurement screen and select PH. 8.1. PREPARATION Up to 5-point calibration with a choice of 7 standard buffers and, additionally, calibration with custom buffers (CUST1 and CUST2). 1. Prepare two clean beakers. One beaker is for rinsing and one for calibration. 2.
  • Page 30 30 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 3. After the first calibration point has been confirmed, the calibrated value is displayed on the first LCD line and the second expected buffer value on the third LCD line (i.e. pH 4.01).
  • Page 31 pH 31 Note: When using custom buffers, CUST1 and CUST2 tags are displayed. If only one custom buffer is used, CUST1 is displayed together with its value. Expired Calibration The instrument has a real time clock (RTC) to monitor the time elapsed since the last pH calibration.

  • Page 32: Measurement

    32 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Clear Calibration 1. Press CAL/EDIT to enter Calibration mode. 2. Press LOG/CLEAR (MEM/CLEAR). ACCEPT tag is displayed blinking and “CLEAR CAL“ message is displayed. 3. Press GLP/ACCEPT to confirm. “PLEASE WAIT“...

  • Page 33: Warnings & Messages

    pH 33 For best results is recommended to: y Calibrate the probe before use and recalibrate periodically y Keep the electrode hydrated y Rinse the probe with the sample before use y Soak in MA9015 Storage solution for at least 1 hour before measurement MTC mode When the probe is not connected the “NO T.
  • Page 34 34 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter y “WRONG OLD POINTS INCONSISTENT” is displayed if there is discrepancy between new calibration value and old value recorded when calibrating with the same probe in a buffer of the same value. Clear the previous calibration and calibrate with fresh buffers.
  • Page 35 pH 35 y “BAD ELEC” is displayed when after cleaning, the electrode’s performance has not improved. Replace the probe. y “WRONG STANDARD TEMPERATURE” is displayed when buffer temperature is out of range. The calibration buffers are affected by temperature changes. During calibration, the instrument will automatically calibrate to the pH value corresponding to the measured temperature but compensate it to the value of 25 °C.
  • Page 36 36 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Messages Displayed During Measurement y “OUT CAL RNG” is displayed when the measured value is outside calibration range. The option has to be enabled (see pH MODE SETUP OPTIONS, Out of Calibration Range section).

  • Page 37: Orp 37

    ORP 37 9. ORP Press RANGE/ from the measurement screen and select ORP. 9.1. PREPARATION For accurate ORP measurements, the surface of the electrode must be clean and smooth. Pretreatment solutions are available to condition the electrode and improve its response time (see ACCESSORIES section).

  • Page 38: Ec / Tds

    38 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 10. EC / TDS Press RANGE/ from the measurement screen and select CONDUCTIVITY. 10.1. PREPARATION Pour sufficient conductivity calibration solution into clean beakers. Ensure that probe’s holes are completely submersed.
  • Page 39 EC / TDS 39 3. Press GLP/ACCEPT key to confirm calibration. The instrument displays “SAVING”, stores calibration values and returns to measurement mode. Zero Calibration For zero calibration, to correct readings around 0.00 µS/cm, keep the dry probe in the air. The slope is evaluated when the calibration is performed in any other point.

  • Page 40: Measurement

    40 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Manual Calibration This option may be used to perform a manual calibration in a custom standard, i.e. to set the cell-constant value directly. To minimize cross-contamination, use two beakers: one for rinsing the probe and the other for calibration.
  • Page 41 EC / TDS 41 To toggle between information displayed on the third LCD line, use the  keys. Readings can be temperature compensated. y Automatic Temperature Compensation (ATC), default: The probe has a built-in temperature sensor; the temperature value is used to automatically compensate the EC / TDS reading.

  • Page 42: Warnings & Messages

    42 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter TDS Measurement Press RANGE/ from the measurement screen and select TDS. y The TDS reading is displayed on the first LCD line and the temperature reading on the second LCD line.
  • Page 43 EC / TDS 43 Messages Displayed During Measurement y “OUT OF SPEC” message is displayed when measured parameter and / or temperature are out of range. y “OVER RANGE” message and range value (blinking) is displayed if EC measurement exceeds the user-selected range. y “NO CAL”...

  • Page 44: Salinity

    44 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 11. SALINITY Press RANGE/ from the measurement screen and select SALINITY. 11.1. PREPARATION Pour small quantities of MA9066 Salinity calibration solution into clean beakers. To  minimize cross-contamination, use two beakers: one for rinsing the probe and the other for calibration.

  • Page 45: Measurement

    SALINITY 45 Note: A new EC calibration automatically clears the %NaCl calibration. “NO  CAL” message is displayed. 11.3. MEASUREMENT MW180 supports three seawater salinity scales: y Practical Salinity Units (PSU) y Natural seawater (g/L) y Percentage NaCl (%NaCl) The required scale is configured in EC MODE SETUP OPTIONS Salinity Scale section. Note: These units are for determining salinity and they refer to general use of saltwater.
  • Page 46 46 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Salinity of a sample in practical salinity units (PSU) is calculated using the following formula: where: ratio of sample conductivity to standard conductivity at Temperature (T) (sample) uncompensated conductivity at T °C C(35, 15)=42.914 mS/cm...

  • Page 47: Warnings & Messages

    SALINITY 47 where: is the conductivity ratio. (sample) is uncompensated conductivity at T °C. C (35,15) = 42.914 mS/cm is the corresponding conductivity of KCI solution containing a mass of 32.4356 g KCl/1 Kg solution. is temperature compensation polynomial. Salinity is defined by the following equation: S = - 0.08996 + 28.2929729R + 12.80832R - 10.67869R...
  • Page 48 48 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Messages Displayed During Measurement y “OUT OF SPEC” message is displayed when measured parameter and / or temperature are out of range. y If a %NaCl calibration is required, “NO CAL” message is displayed. y If Calibration Expired Warning is on and the set number of days has passed, or an EC ...

  • Page 49: Logging

    LOGGING 49 12. LOGGING MW180 can switch between measurement modes from the measurement screen. Available logging options will depend on selected mode. y Press RANGE/ from the measurement screen y Select PH or ORP to enter PH mode or CONDUCTIVITY, TDS, SALINITY to enter EC mode. Measurement Mode Logging Mode Measurements...

  • Page 50: Types Of Logging

    50 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 12.1. TYPES OF LOGGING Manual log on demand y Readings are logged each time LOG/CLEAR is pressed y All manual readings are stored in a single lot (i.e. records made on different days share the same lot) Log on stability y Readings are logged each time LOG/CLEAR is pressed and stability criteria is reached...
  • Page 51 LOGGING 51 The LOG ### “SAVED” screen displays stored log number. “FREE” ### screen displays total number of available records. Meter then returns to measurement screen. Interval Logging 1. From the Setup mode, set Log Type to INTERVAL (default) and desired time interval. 2.

  • Page 52: Data Management

    52 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Interval Logging Warnings “OUT OF SPEC” Sensor failure is detected. Loggings stops. “MAX LOTS” Maximum number of lots reached (100). Cannot create new lots. “LOG FULL” Log space is full (1000 logs limit was reached).
  • Page 53 LOGGING 53 6. With a lot selected, use  keys to view the records stored in that lot. 7. Press RANGE/ to view, additional log data: date, time, cell factor, temperature coefficient, temperature reference, displayed on the third LCD line. 12.2.2.
  • Page 54 54 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Individual Logs / Records 1. Press RCL to access the logged data. LCD displays “PLEASE WAIT” followed by “LOG RECALL” with ACCEPT tag blinking and the total number of logs.
  • Page 55 LOGGING 55 The LOG ### LOT ### screen displays selected lot number (bottom right) and total logs stored in lot (bottom left). 5. Press GLP/ACCEPT to confirm (to exit, press ESC or CAL/EDIT or LOG/CLEAR). 6. With the lot selected, press LOG/CLEAR to delete entire lot. “CLEAR”...
  • Page 56 56 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter 12.2.3. Exporting Data PC Export 1. With the meter on, use the supplied micro USB cable to connect to a PC. 2. Press SETUP then CAL/EDIT. 3.
  • Page 57 LOGGING 57 4. Press GLP/ACCEPT to confirm. LCD displays “EXPORTING” and the percentage counter, followed by “DONE” when export is completed. Display returns to the lot selection screen. Note: The USB flash drive can be safely removed if the USB icon is not displayed. Do not remove the USB drive during export.
  • Page 58 58 MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter Overwriting existing data. 1. When the LCD displays “EXPORT” with ACCEPT and lot number blinking (USB icon displayed), an identical named lot exists on the USB. 2.

  • Page 59: Glp 59

    GLP 59 13. GLP Good Laboratory Practice (GLP) allows the user to store and recall calibration data. Correlating readings with specific calibrations ensures uniformity and consistency. Calibration data is stored automatically after a successful calibration. Saving a new EC calibration automatically clears the existing %NaCl calibration. y Press RANGE/...

  • Page 60: Troubleshooting

    Broken probe Replace the probe. faulty readings LCD tags displayed Check the keyboard. ON/OFF key continuously at If error persists, contact Milwaukee is blocked startup Technical Service. Restart the meter. “Internal Er X” Internal hardware error If error persists, contact Milwaukee...

  • Page 61: Accessories

    ACCESSORIES 61 15. ACCESSORIES MA917B/1 Combination pH electrode, glass body, refillable MA924B/1 ORP probe, glass body, refillable MA831R Stainless steel temperature probe MA814DB/1 4-ring EC/TDS/NaCl/Temperature probe with DIN connector MA9001 pH 1.68 Buffer Solution (230 mL) MA9004 pH 4.01 Buffer Solution (230 mL) MA9006 pH 6.86 Buffer Solution (230 mL) MA9007...

  • Page 62: Certification

    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.
  • Page 63 Milwaukee Instruments reserves the right to make improvements in design, construction and appearance of its products without advance notice.
  • Page 64 THANK YOU FOR CHOOSING Sales and Technical Service Contacts: Milwaukee Electronics Kft. Alsó-kikötő sor 11C H-6726 Szeged - HUNGARY tel: +36 62 428 050 fax: +36 62 428 051 www.milwaukeeinst.com e-mail: sales@milwaukeeinst.com Milwaukee Instruments, Inc. 2950 Business Park Drive Rocky Mount, NC 27804 USA...

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