Omega HH501DK - Manual (Page 9)

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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 “-“
polarity is right position.
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.