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11
GENERAL
Display: 3½ digit liquid crystal display (LCD) with a maximum reading of1999.
Polarity: Automatic, positive implied, negative polarity indication.
Overrange: -OL is displayed.
Zero: Automatic.
Low battery indication: The “ is displayed when the battery voltage
drops below the operating level.
Measurement rate: 1 times/second.
Accuracy: Stated accuracy at 23°C±5°C, <75% R.H.
Dimensions: 195mm(H) x 92mm(W) x 53mm(D).
Weight: approx. 9 oz. (250g) including battery.
Input Connector: Accepts standard miniature thermocouple connectors (flat
blades spaced 7.9mm, center to center SMP type).
Battery Life: 100 hours typical with carbon zinc battery.
Auto power off: The meter key switch inactive for more than 90 minutes.
Temperature Coefficient: 0.1 times the applicable accuracy specification per
°C from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F).
Input Protection: 24V dc or 24V ac rms maximum input voltage on any
combination of input pins.
Maximum Differential Common Mode Voltage (Maximum Voltage
betweenT1 and T2 during measurement): 1volt.
12
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: Thermocouple calibrator had better 10 times greater than the
measured meter.
1. Short CAL jumper and turn on the meter to INPUT range.
2. Press “ ” key display was showed 35°C / T1/ SET / K.
3. Input 35°C / K-type to the T1, then press key and wait for the
display was showed 1300°C / T1 / SET / K.
4. Input 1300°C / K-type to the T1, then press “ ” key and wait for the
display was showed 0°C / T1 / SET / K.
5. Input 0°C/K-type to the T1, then press “ ” key and wait for the display
was showed “-OL” then press key and wait for the display was
35°C / T2 / SET / K.
6. Input 35°C / K-type to the T2, then press key and wait for the
display was showed 1300°C / T2 / SET / K.
7. Input 1300°C / K-type to the T2, then press “ ” key and wait for the
display was showed Out / K / °C / SET / T2.
8. Knob being with clockwise rotation 2 range and two knobs of lower left
corner are set to the position of the middle (horizontal).
9. Press key and wait for the meter auto power off then remove
jumper.
10. The calibration was completed.
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