HH501DK CALIBRATION PROCEDURE
Note: The following calibration procedure should perform only by qualified technicians who have access to the items as following.
Equipment: The class of calibrator had better 10 times greater than the measured meter.
Temperature Calibration
Insert the K type thermocouple to the female connector, and the other side of this probe to Temperature Calibrator and connect output to the voltage meter. We must allow the K type to stabilize for at least 1 minute and make sure “+” and
1.Set the range to the T1/0.1°C, and then apply 0°C to T1 input (T2 input open) adjust R3 and R4 (fine adj.) until LCD reading reads 0.0±0.1°C.
2.Set the range to the T2/0.1°C, and then Apply 0°C to T2 input (T1 input open) adjust R1 and R2 (fine adj.) until LCD reading reads 0.0±0.1°C.
3.Set the range to the T1/0.1°F, and then apply 0°F to T1 input (T2 input open) adjust R6 until LCD reading reads 0.0±0.1°F.
4.Set the range to the T1/0.1°F, and then apply 165°F to T1 input (T2 input open) adjust R7 until LCD reading reads 165.0±0.1°F.
5.Set the range to the T1/1°F, and then apply 1832°F to T1 input (T2 input open) adjust R5 until LCD reading reads 1832±1°F.
6.Set the range to the T1/1°C, and then apply 1000°C to T1 input (T2 input open) adjust R8 until LCD reading reads 1000±0°C.
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