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16. Other Functions and Instrument Maintenance
Other Function:
1.
Data Hold
Press “HOLD” button, the present value is held on LCD; Press the button again exit the hold mode
and get in the normal measuring status.
2.
Auto Power Off.
Stop working for 15 seconds, the instrument will auto power off, and get into the sleeping mode.
The buzzer inside will sound 5 times one minute before powering off, there is a long sound one
minute late and the instrument gets into the sleeping mode. Press any key to restart the power.
3.
Press “REL/RS232” button to get into the Relative Value Measurement mode, Keep holding
“REL/RS232” button more than 2 seconds, RS232 symbol is displayed on LCD, it indicates it is the
status of the instrument connecting with PC, than connect the instrument to PC by USB Cable,
accessory of the instrument, and then, can transmit the measuring data to PC, it is convenient to
record, analyze, process and print the measuring results, etc. Please refer the details to the
description in the software.
Instrument maintenance:
This is a highly precise instrument, do not try to modify the inner circuit at will.
1.
Keep the instrument dry, and keep it away from dust and shock.
2.
Do not store and use the instrument in high humility, high temperature, combustible,
explosive and strong magnetic places.
3.
Clean the surface of the instrument with the damp cloth and gentle detergent, do not use the
strong solvent like the abrasive cleaner and alcohol, etc.
4.
Take out the batteries if do not use the instrument for a long time to prevent the batteries from
leaking the liquid to corrode the instrument.
5.
When LCD displays “
” symbol, should replace the batteries as the following steps:
a.
Loose the screw that fixes the batteries and remove the battery case.
b.
Remove the spent 1.5V batteries, and replace them by two same type new batteries.It is better
to use alkaline batteries for lengthening the usage time.
c.
Fit on the battery case and lock the screw tightly.
d.
The steps of replacing the fuse are same as the above. When replacing the fuse, please use the
same specification, same type of fuse.
Note:
1.
Do not input the voltage more than 1000V DC/AC peak value.
2.
Do not measure the voltage at the Current, Resistance, Diode and Buzzer range.
3.
Do not use this battery before fixing the battery or tightening the bottom case.
4.
Please remove the test lead from the tested point and turn the power off before replacing the
battery or fuse.
The instruction manual is subject to change without notice.
The contents in the instruction manual are considered to be correct, if the users find any errors or
pretermissions, etc., please contact the manufacturer.
The manufacturer hereby will not be responsible for any accident and damage caused by the
improper operation.
The functions described in this instruction manual do not be the reason for special usage.
