Milwaukee MW190, Инструкция по эксплуатации

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24 MW190 Bench Meter
13. TEMPERATURE CALIBRATION (for technical personnel only)
The MW190 is factory calibrated for temperature.
Milwaukee’s DO probes are interchangeable and no temperature calibration is needed
when they are replaced.
If the temperature measurements are inaccurate, temperature recalibration should be
performed.
For an accurate recalibration, contact your dealer or the nearest Milwaukee Customer
Service Center, or follow the instructions bellow.
y
Prepare a vessel containing ice and water and another one containing hot water
(at a temperature of around 50 °C). Place insulation material around the vessels to
minimize temperature changes.
y
Use a calibrated thermometer with a resolution of 0.1 °C as a reference thermometer.
y
With the instrument off, press and hold down the LOG & MR keys, then power on
the instrument. The “CALIBRATION” tag will appear and the secondary LCD will show
0.0 °C.
y
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.
y
Use the UP and DOWN arrow keys to set the reading on the secondary LCD to that of
ice and water, measured by the reference thermometer. When the reading is stable
and close to the selected calibration point, the “READY” and “ACCEPT” tags will blink.
y
Press the ACCEPT key to accept the calibration point. The secondary LCD will show
50.0 °C.
y
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.
y
Use the UP and DOWN arrow keys to set the reading on the secondary LCD to that of
the hot water, measured by the reference thermometer.
y
When the reading is stable and close to the selected calibration point, the “READY”
and “ACCEPT” tags will blink.
y
Press the ACCEPT key to accept the calibration point. The instrument returns to
measurement mode.
Note: If the reading is not close to the selected calibration point, “WRONG” tag will
blink. Change the temperature probe and restart calibration.