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Power-on: to guarantee correct power-on operation, cut off the power for 5 seconds before restarting.
Auto- power- off
The factory default sets that the Instrument will automatically power off if no operation is conducted within 5 minutes.
Automatically power off function can be set by Users. (See “Instrument Settings”)
Turn on the backlight
After powering on, press
key for once to turn on the backlight, repress
key to turn off the backlight.
Auto-turn-off backlight
Users can set backlight time (See “Instrument Settings”)
The default value is 30 seconds; the instrument will turn off the backlight if Users does not turn off the backlight
within 30 seconds.
The auto-turn- off function is prohibited if the setting is 0.
Low battery display
Mark
displays in the upper-left Main Screen after power-on means low battery, please replace with new
ones (recharge if the batteries are chargeable)and then use.
Warning
To avoid electrical shock hazard or personnel injury due to wrong readings, replace the batteries as soon as
possible if the LED displays
mark; or charge the batteries if they are chargeable.
Do not start testing function in low battery state.
Residual resistance
（
Rk
）
on the Test Leads
Composition of the measurement value: R display = R measurement - RK
The Rk default value is 0.00
Ω, and can be adjusted between 0.00
～
5.00
Ω through measurement.
Rk residual sequence undertakes as follows:
Step one: press key to select testing method: four- pole, three-pole, or 2- pole.
Step two: connect the Test Leads;
