Specifications

This high performance economy microprocessor-based
pH/ORP/Temp Bench meter is an ideal tool in schools, laborato-
ries and production plants. It is provided with a series of new
diagnostic features which add an entirely new dimension to the
measurement of pH, by allowing the user to dramatically improve
the reliability of the measurement:
• Automatic Temperature Compensation (ATC) for good accura-
cy under fluctuating temperatures;
• Hold Function freezes reading for easy viewing;
• Easy to read large custom LCD;
• Stability Indicator prompts whenever reading stabilizes;
• 7 memorized buffers (pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01
and 12.45) for calibration;
• Messages on the LCD to make the calibration easy and accu-
rate;
• User-selectable “calibration time out” to remind when a new
calibration is necessary.
Mi151 can also measure with ORP electrodes, thanks to its
capability to measure mV with a resolution up to 0.1 mV. For
accurate measurements, use the electrode holder sup-
plied with the meter.
Mi151
pH/ORP/Temperature Laboratory Bench Meter
pH/ORP
4
www.milwaukeeinst.com
Custom dual level LCD
Large and easy-
to-read Custom
dual level LCD
Display with
simultaneous
readings and with
user-friendly
icons.
Ordering Information
Mi151 is supplied complete with:
• MA917B/1 Double junction refillable pH electrode
• MA831R Temperature Probe
• MA9315 Electrode Holder
• M10004 pH 4.01 Sachet Buffer Solution
• M10007 pH 7.01 Sachet Buffer Solution
• M10010 pH 10.01 Sachet Buffer Solution
• M10016 Sachet Electrode Cleaning Solution
• Graduate Pipet
• 12 VDC Adapter
• Instruction manual
Accessories
MA9001 pH 1.68 buffer solution, 230 mL bottle
MA9004 pH 4.01 buffer solution, 230 mL bottle
MA9006 pH 6.86 buffer solution, 230 mL bottle
MA9007 pH 7.01 buffer solution, 230 mL bottle
MA9009 pH 9.18 buffer solution, 230 mL bottle
MA9010 pH 10.01 buffer solution, 230 mL bottle
MA9012 Refilling solution for double junction
electrode, 230 mL bottle
MA9015 Electrode storage solution, 230 mL
MA9016 Electrode cleaning solution, 230 mL
MA831R Temperature probe
MA9112 pH 12.45 buffer solution, 230 mL
bottle
MA9310 12 VDC Adapter, 220 V
MA9311 12 VDC Adapter, 110 V
MA9315 Electrode Holder
MA917B/1 Glass body, double junction refillable
pH electrode
MA921B/1 Platinum ORP electrode with 1 m
cable (will be replaced by SE300)
SE300(*) Platinum ORP electrode with 1 m
cable
(*) Available from the 1
st
of September 2011
Specifications Mi151
Range pH -2.00 to 16.00 pH
mV ±699.9 mV / ±1999 mV
Temp -20.0 to 120.0°C / -4.0 to 248.0°F
Resolution pH 0.01 pH
mV 0.1 mV / 1 mV
Temp 0.1°C (0.1°F)
Accuracy pH ±0.01 pH
(@ 20°C) mV ±0.2 mV / ±1 mV
Temp ±0.4°C / ±0.8°F
Typical EMC pH ±0.02 pH
Deviation mV ±0.2 mV / ±1 mV
Temp ±0.4°C / ±0.8°F
pH Automatic Calibration 1 or 2 point-calibration, with 7 memorized buffers
Offset Calibration ±1 pH
Slope Calibration from 80 to 108%
Temperature Compensation automatic, from -20.0 to 120.0°C / -4.0 to 248.0°F or manual, without temperature probe
pH Electrode MA917B/1 (included)
Temperature Probe MA831R (included)
Environment 0 to 50°C / 32 to 122°F; max RH 95%
Input Impedance 10
12
Ohm
Power supply 12 VDC power adapter (included)
Dimensions 230 x 160 x 95 mm
Weight 0.9 kg
Glass Electrode &
Temperature
Probe
Choose from our wide
selection of pH and ORP
electrodes at pages 6
and 49.