User Manual

 OVC (ON/OFF): Toggle Offset Voltage Compensation on and off. OVC increases accuracy at the

cost of increased measurement time.

 SELF CAL (AUTO/MANU): Toggle between auto and manual. See 4.1.7 0 ADJ for details.

 SAVE DATA: Enabled when a USB flash drive is attached. When activated, resistance and

temperature data is continuously saved to an auto-generated CSV onto the drive. The

key changes to STOP SAVE to terminate the function. SAVE DATA is disabled if no USB

flash drive is attached.

Removing the USB flash drive before pressing STOP SAVE will result in the loss of the

recorded data. The CSV is rewritten every time.

3.1.2 FUNC

The FUNC key allows the user to measure resistance in normal or low voltage modes and

display temperature.

The measurement modes are:

 R: Resistance

 R-T: Resistance and Temperature

 T: Temperature

 LPR: Resistance tested at low voltage

 LPR-T: Resistance tested at low voltage and temperature

3.1.3 RANGE

There are 2 resistance measurement modes:

6. Measurement Mode (R, R-T) with 11 ranges:

 20 mΩ, 200 mΩ, 2 Ω, 20 Ω, 200 Ω, 2 kΩ, 20 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ

7. Measurement Mode at Low Voltage (LPR, LPR-T) with 4 ranges:

 2 Ω, 20 Ω, 200 Ω, 2 kΩ

Follow the instructions below to set the resistance measurement ranges.

1. Touch the RANGE key, the following menu options will be displayed:

Note: OVC - When two different materials come into contact, a thermo electromotive force (EMF) will be

generated on the contact surface and will vary with the ambient temperature. The higher the ambient

temperature is, the larger the thermo electromotive force will be. The principle of OVC is to apply an inverse

current through the test terminals and the formula is 





, where Rp is a positive value, Rn is a negative

value.