5.0 CL3152A Calibration Procedure
Note: The following calibration procedure should be performed only by
qualified technicians who have access to the items as following
items:
Equipment: 1) A very accurate millivolt source.
2) A TRC III ICE Point Reference or ice bath with type
K thermocouple.
Input Funtion "Calibration"
1. Before turning on the meter, turn the RANGE knob to position "INPUT"
and then move the jumper to the upper two pins of J5 which is at the left
upper of the PCB.
2. Input DCV 25.60mV to the T1. After the display is stabilized, then press
key and "0.1" is displayed.
3. Input DCV 74.00mV. After the display has stabilized, then press
key and "OL" is displayed.
4. Input
0°C (K-type, use a K thermocouple on an ice bath, or
thermocouple calibrator).
After the display has stabilized then press
key.
5. Do Not press any key. The meter will turn off automatically after 10
seconds. Move
the jumper
to the lower two pins of J5.
6. Turn the meter back on then input
0°C (K-type). The meter will be
calibrated if the display reading reads 0°C.
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