11
surface resistance of measured object and the leakage interference of
measured circuit.
3/4. “- "ground terminal: it is the terminal that the instrument safely
connects the ground and measured target. Water pipe can be used as earth
terminal. Metal shell, transformer core and cable shield of motor are measured
zero terminal. Earth terminal of manual discharge is also connected to this
terminal.
5. "Resistance gear" indication: when switching the resistance range, the
corresponding M Ω / GΩ resistance range gear will be displayed
6. "Timing switch": when the measured value is stable, press it to start
timing. Display the test time in minutes and seconds, the maximum value is 19
minutes and 59 seconds, and then cycle.
7. low battery: When the working voltage is lower than 12V, the indicator
light is red, and the indicator light goes out gradually with the increase of
battery voltage.
8. “Charger input: When the working voltage is lower than 12V, the
indicator light is red, and the indicator light goes out gradually with the increase
of battery voltage.
9. “ON”: The indicator light is red when the working power is on.
10. Power: the power switch of the instrument.
11. Resistance range: Adjust the rotary knob to select resistance range;
range value is also the upper limit of range.
12. Voltage Adjust: Adjust the rotary knob; test voltage will smoothly rise
from 0V to the desired value.
13.Voltage range: It is used to select test power value.
14. Push to test: Control the voltage measurement output. When pressed,
the high voltage is output from the "+" end.
15. “KV “meter: Display the voltage value of test power b
～
-.
16. MΩ / GΩ display screen: Display insulation resistance value. The unit
of insulation resistance value decided by resistance range switch.
