Instruction Manual

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constant, but NTC changes its resistance with temperature changes, and the actual temperature
value is obtained by measuring the partial pressure voltage and bringing it into the NTC
temperature conversion formula.
VIII. Operation Method
8.1 Power on /off and automatic shutdown
● Press to power on /off.
● If the automatic shutdown function is turned on, and no key is pressed within 15 minutes
after starting up, the meter will automatically shut down to save power. If any key is pressed
during the 15-minute timer, it will be extended by another 15 minutes. This function can be turned
off in the settings, the factory default is turned on, and will be displayed when turned on.
8.2 Test interface operation
In the test interface, you can view the current instrument time, measured value, and instrument
status information. The functions of the operation buttons are as follows:
Keep data
Enter the settings menu
Resistance measurement shift
Voltage measurement shift
Zero or cancel zero
Turn automatic gear shift on or off
Enter data reading mode
Turn Bluetooth on or off
Turn software filtering on or off
8.3 Setting menu interface operation
Press SET on the test interface to enter the setting directory interface. In the setting directory
interface, you can select the items to be set and view the basic information of the instrument.
Select the item to be set
Choose to enter
1） Threshold setting
The threshold setting interface can set the thresholds for judging the test results FAIL,
WARNING and PASS. Setting an appropriate threshold can improve the efficiency of
judgment and test.
Switch settings
Enter or exit the current setting item
Digital displacement
Addition and subtraction value
return
2） Alarm settings