Milwaukee MW170 MAX User manual

INSTRUCTION MANUAL
SATISFACTION
GUARANTEED
MW170 MAX
EC / TDS / NaCl / Temperature
Bench 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.
THANK YOU for choosing Milwaukee Instruments!
This instruction manual will provide you the necessary information for correct use
of the meter.

3
TABLE OF CONTENTS
1. PRELIMINARY EXAMINATION...................................................................................................................................4
2. INSTRUMENT OVERVIEW ..........................................................................................................................................5
3. SPECIFICATIONS.............................................................................................................................................................6
4. FUNCTIONAL & DISPLAY DESCRIPTION............................................................................................................8
5. MA814DB/1 PROBE .......................................................................................................................................................11
6. GENERAL OPERATIONS............................................................................................................................................. 12
6.1. POWER CONNECTION & BATTERY MANAGEMENT....................................................................................12
6.2. CONNECTING THE PROBE......................................................................................................................................12
6.3. ELECTRODE CARE & MAINTENANCE...............................................................................................................12
7. SETUP..................................................................................................................................................................................14
7.1. SETUP OPTIONS.............................................................................................................................................................14
8. EC / TDS ...........................................................................................................................................................................23
8.1. PREPARATION................................................................................................................................................................23
8.2. CALIBRATION................................................................................................................................................................23
8.3. MEASUREMENT..........................................................................................................................................................25
8.4. WARNINGS & MESSAGES.....................................................................................................................................27
9. SALINITY..........................................................................................................................................................................29
9.1. PREPARATION................................................................................................................................................................29
9.2. CALIBRATION................................................................................................................................................................29
9.3. MEASUREMENT......................................................................................................................................................... 30
9.4. WARNINGS & MESSAGES .....................................................................................................................................32
10. LOGGING ........................................................................................................................................................................34
10.1. TYPES OF LOGGING..................................................................................................................................................34
10.2. DATA MANAGEMENT...............................................................................................................................................36
11. GLP.....................................................................................................................................................................................43
11.1. EC/TDS..............................................................................................................................................................................43
11.2. %NaCl..............................................................................................................................................................................43
12. TROUBLESHOOTING.................................................................................................................................................44
13. ACCESSORIES..............................................................................................................................................................45
CERTIFICATION..................................................................................................................................................................46
RECOMMENDATION........................................................................................................................................................46
WARRANTY..........................................................................................................................................................................46

4MW Bench Meter
1. PRELIMINARY EXAMINATION
MW170 bench meter is delivered in a cardboard box and is supplied with:
yMA814DB/1 4-ring EC/TDS/NaCl/Temperature probe with DIN connector and
1meter (3.2 feet) cable
yMA9315 Electrode holder
y12 VDC adapter
yUSB cable
yInstrument quality certificate
yInstruction manual

INSTRUMENT OVERVIEW 5
2. INSTRUMENT OVERVIEW
MW170 is a compact and versatile bench meter that can measure up to four dierent
parameters — EC, TDS, salinity (in PSU, g/L, percentage NaCl) and temperature.
The main operating modes are setup, calibration, measurement and logging.
yEasy to read LCD display
yAuto-o feature to prolong battery life
yAll measurements can be temperature compensated automatically (ATC), or
manually (MTC) with a user-selectable compensation coeicient. Temperature
compensation can be disabled (NOTC) if the actual conductivity value is required.
yThe auto-ranging feature for both EC and TDS measurements automatically sets the
most suitable resolution for the tested sample.
yAvailable log space for up to 1000 records
yLogged data can be exported using a USB cable
yDedicated GLP key to store and recall data on system status

6MW Bench Meter
3. SPECIFICATIONS
Range *
EC
0.00 to 29.99 S/cm
30.0 to 299.9 S/cm
300 to 2999 S/cm
3.00 to 29.99 mS/cm
30.0 to 200.0 mS/cm
up to 500.0 mS/cm absolute conductivity **
TDS
(with 0.5 factor)
0.00 to 14.99 ppm (mg/L)
15.0 to 149.9 ppm (mg/L)
150 to 1499 ppm (mg/L)
1.50 to 14.99 g/L
15.0 to 100.0 g/L
up to 250.0 g/L absolute TDS **
up to 400.0 g/L absolute TDS ** (with 0.8 factor)
Salinity
0.0 to 400.0 % NaCl
2.00 to 42.00 PSU
0.00 to 80.00 g/L
Temperature -20.0 to 120.0 °C (-4.0 to 248.0 °F)
Resolution
EC
0.01 S/cm
0.1 S/cm
1 S/cm
0.01 mS/cm
0.1 mS/cm
TDS
0.01 ppm
0.1 ppm
1 ppm
0.01 g/L
0.1 g/L
Salinity
0.1% NaCl
0.01 PSU
0.01 g/L
Temperature 0.1 °C (0.1 °F)
Accuracy *
@ 25 °C (77 °F)
EC ±1% of reading; (±0.05 S/cm or 1 digit, whichever is greater)
TDS ±1% of reading; (±0.03 ppm or 1 digit, whichever is greater)
Salinity ±1% of reading
Temperature accuracy * ±0.5 °C (±0.9 °F)
* Limits will be reduced to actual sensor limits.
** Absolute conductivity (or TDS) is the conductivity (or TDS) value without temperature compensation.

SPECIFICATIONS 7
Calibration EC/TDS
Single-cell factor calibration using 6 standards:
84 S/cm, 1413 S/cm, 5.00 mS/cm, 12.88 mS/cm,
80.0 mS/cm, 111.8 mS/cm
One-point oset: 0.00 S/cm
Salinity One-point with MA9066 Salinity calibration solution
Temperature
compensation
ATC – automatic
MTC – manual
–20 to 120 °C (–4 to 248 °F)
NOTC – without temperature compensation
Conductivity
temperature coeicient
0.00 to 6.00 % / °C (EC & TDS)
Default value: 1.90 % / °C
TDS factor 0.40 to 0.80
Default value: 0.50
Logging memory
Max. 1000 log records (stored in up to 100 lots)
On demand, 200 logs
On stability, 200 logs
Interval logging, 1000 logs
PC connectivity 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.)
PROBE SPECIFICATIONS
EC probe
MA814DB/1
Temperature range 0 to 60 °C (32 to 140 °F)
Temperature sensor NTCK
4-ring type Stainless steel
Connector socket DIN, 7 pins
Body ABS
Dimensions
total length: 140 mm (5.5")
active part: 95 mm (3.7")
Ø 16.3 mm (0.64")
Cable length 1 m (3.2 ft)

8MW Bench Meter
4. FUNCTIONAL & DISPLAY DESCRIPTION
Front Panel
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2
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6
7
9
8
10
1. Liquid Crystal Display (LCD)
2. ESC key, to exit current mode
3. RCL key, to recall the logged values
4. SETUP key, to enter setup mode
5. LOG/CLEAR key, to log the reading or to clear calibration or logging
6. ON/OFF key
7.  directional keys for menu navigation and setting parameters
8. RANGE/key, to select EC, TDS or Salinity
9. GLP/ACCEPT key, to enter GLP or to confirm selected action
10. CAL/EDIT key, to enter/edit calibration settings, edit setup settings

FUNCTIONAL & DISPLAY DESCRIPTION 9
Rear Panel
1
2
4
3
1. Micro USB port
2. USB type A port
3. Power supply socket
4. DIN probe connector

10 MW Bench Meter
Display Description
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2
3
4
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6
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15
1. Stability indicator
2. Status information
3. USB connection status
4. Mode tags
5. Probe symbol
6. Accept tag
7. Log tag
8. Third LCD line, message area
9. Measurement units
10. First LCD line, measurement readings
11. Arrow tags, to move the user through the menu in either direction
12. Measurement units / Temperature compensation status (NOTC, MTC, ATC)
13. Temperature units
14. Second LCD line, temperature readings
15. Measurement units / TDS settings

MA814DB/1 PROBE 11
5. MA814DB/1 PROBE
Main features:
yDirect signal processing for noise-free measurements
yAccurate and integrated temperature measurement
1
2
3
4
1. O-ring
2. Plastic insulator
3. Steel rings
4. Probe sleeve

12 MW Bench Meter
6. GENERAL OPERATIONS
6.1. POWER CONNECTION & BATTERY MANAGEMENT
MW170 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.
MW170 is equipped with Battery Error Prevention System (BEPS) feature, which turns the
meter o after 10 minutes of non-use (see Auto O in SETUP OPTIONS section).
At power on, the instrument performs an auto-diagnostic test and all LCDsegments are
displayed for a few seconds. Use  keys to check the battery percentage.
6.2. CONNECTING THE PROBE
MA814DB/1 is connected to the meter through a DIN connector.
yWith the meter o, connect the probe to the DIN socket on the top of the meter.
yAlign the pins and key then push the plug into the socket.
yMount the supplied metallic plate onto the meter. Tighten the screw to lock in place.
yMount the arm holder over the metallic pin from the plate.
yPlace the probe into the holder.
After measurement, switch the meter o and clean the probe before storage.
6.3. ELECTRODE CARE & MAINTENANCE
When using a new probe, remove the sleeve and inspect the probe prior to use.
Calibrating
Calibration is the first step in obtaining accurate and repeatable results. See CALIBRATION
section for details.
Best practice
yAlways use fresh standards. The calibration standards are easily contaminated.
yDo not reuse standards.
yDo not use expired standards.

GENERAL OPERATIONS 13
Regular Maintenance
yInspect the probe for cracks or other damage. Replace the probe if necessary.
yInspect sensor o-ring for nicks or other damage.
yInspect the cable. Cable and insulation must be intact.
yConnectors should be clean and dry.
yFollow storage recommendation.
Cleaning Procedure
If a more thorough cleaning is required, remove the sleeve and clean the probe with a
cloth and a nonabrasive detergent. Reinsert the sleeve and recalibrate the probe.
Storage
EC probes should always be stored clean and dry.

14 MW Bench Meter
7. SETUP
To configure the meter settings, modify default values or set measurement parameters:
yPress SETUP to enter (or exit) Setup mode
yUse  keys to navigate the menus (view parameters)
yPress CAL/EDIT to enter Edit mode (modify parameters)
yPress RANGE/key to select between options
Use  keys to modify values (value being modified is displayed blinking)
yPress GLP/ACCEPT to confirm and save changes (ACCEPT tag is displayed blinking)
yPress ESC (or CAL/EDIT again) to exit Edit mode without saving (return to menu)
7.1 . SETUP OPTIONS
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  keys to select stability type: fast (default), medium or accurate.

SETUP 15
Calibration Expired Warning
Options: 1 to 7 days (default) oro
Use  keys to select the number of days since last calibration has elapsed.
Temperature Compensation
Options: ATC (default), MTC or NOTC
With the probe connected, press RANGE/to select options.
EC Cell Factor
Options: 0.010 (default) to 9.999
With the probe connected, use keys to change the value.
Note: Setting the EC cell-factor value directly will erase any previous calibrations.
Logfiles and GLP will display “MANUAL”as standard.

16 MW Bench Meter
EC Temperature Coeicient (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.
TDS Factor
Options: 0.40 to 0.80 (0.50 default)
With the probe connected, use keys to change the value.

SETUP 17
EC Temperature Coeicient / Reference View
Options: T.Coef.(%/°C) or T.Ref.(°C) (default)
With the probe connected, use keys to navigate between Temperature Coeicient
and Temperature Reference.
EC Range
Options: AUTO (default), 29.99 S/cm, 299.9 S/cm, 2999 S/cm, 29.99 mS/cm, 200.0 mS/cm
Note: Absolute conductivity — up to 500.0 mS/cm — is the conductivity value without
temperature compensation.
With the probe connected, use keys to change the value.
When autoranging, the meter automatically chooses the optimum conductivity range to
maintain the highest possible accuracy.
Note: Selected EC range is active during measurements only. If exceeded, the full-scale
value is displayed blinking. Logged data is displayed in µS/cm in CSV files.

18 MW 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.
With the probe connected, use keys to change the value.
When autoranging, the meter automatically chooses the optimum TDS range to maintain
the highest possible accuracy.
Note: Selected TDS range is active during measurements only. If exceeded, the full-scale
value is displayed blinking. Logged data is displayed in mg/L in CSV files.
TDS Unit
Options: ppm (mg/L) default and g/L
With the probe connected, press RANGE/to select options.
Salinity Scale
Options: psu, g/L and %NaCl (default)
With the probe connected, press RANGE/to select options.

SETUP 19
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 options. Use  keys to modify the values.
Auto O
Options: 5, 10 (default), 30, 60 minutes or o
Use  keys to select the time.
The meter will power o after set period of time.

20 MW Bench Meter
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  keys to select LCD contrast values.