Instruction Manual Mi 180 Bench Meter
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TEMPERATURE CALIBRATION (for technical personnel only)
The Mi
Mi 180
Mi 180
Mi 180
Mi 180
180 is factory calibrated for temperature.
Martini’s temperature probes are interchangeable and no temperature calibration is needed
when they are replaced.
If the temperature measurements are inaccurate, temperature recalibration should be performed
on both ranges (pH and EC).
For an accurate recalibration, contact your dealer or the nearest M
ilwaukee
Customer Service
Center,
or follow the instructions bellow.
• Prepare a vessel containing ice and water and another one containing hot water
(at 50 °C). Place insulation material around the vessels to minimize temperature changes.
• Use a calibrated thermometer with a resolution of 0.1°C.
• With the instrument off, press and hold the GLP/ACCEPT & LOG/CLR/MR keys (pH range)
or CAL & LOG/CLR/MR keys (EC range), then power on the instrument. The “CALIBRA-
TION” tag will appear and the secondary LCD will show 0.0 °C.
• Immerse the temperature probe in the vessel with ice and water as near as possible to the
reference thermometer. Allow a few seconds for the probe to stabilize.
• Use the UP and DOWN arrow keys to set the reading on the secondary LCD to the one
measured by the reference thermometer. When the reading is stable and close to the
selected calibration point, the “READY” and “ACCEPT” tags will blink.
• Press the GLP/ACCEPT key to accept the calibration point. The secondary LCD will show
50.0
°
C.
• Immerse the temperature probe in the second vessel as near as possible to the reference
thermometer. Allow a few seconds for the probe to stabilize.
• Use the UP and DOWN arrow keys to set the reading on the secondary LCD to that of the
hot water.
• When the reading is stable and close to the selected calibration point, the “READY” and
“ACCEPT” tags will blink.
• Press the GLP/ACCEPT key to accept the calibration point. The instrument returns to
measurement mode.
Note
Note
Note
Note
Note: If the reading is not close to the selected calibration point, “WRONG” tag will blink.
Change the temperature probe and restart calibration.
