User Manual

Page.92.
Data hold
Click “Hold data” to enter, the data be hold, the value is green. Press it again to quit.
Relative value measurement
Click “Relative” to enter, the tester Auto-save the data, the displayed new measurement and relative
value is red color. Press it again to quit.
The hold function and the relative value be combined use, the display value is yellow.
The meter protection
 Voltage protection
You can’t input the voltage which more than 660V AC, it’s possible to show higher voltage, but
it’s may destroy the inner circuit.
 Resistance, Continuity, Diode, PTC component Protection
Wrong input voltage, will Auto enter protection state , It only suitable for short and limit time work.
If input voltage over 600V, will damage the meter.
 mA current fuse range: 250V 1A
if the current over the rated range ,fuse will melt to protect the meter .Pls use the same model when
change the fuse, Pls opens the battery cover to change.
Note: 10A socket without fuse protection, if over the current range.
Wrong using the 10A socket to measure the voltage, will damage the meter.
3.3.27 Optical power meter ( *Optional )
Click icon to enter ,with five wavelength 1625nm,1550nm, 1490nm, 1310nm ,1300nm,
850nm, linear or nonlinear optical power display, both for optical power testing and Fiber link loss
relative measurement. It is necessary tool for installation and maintenance optical fiber communication,
cable television and CCTV security system.
Note: Please keep the fiber connector and the dust cap be clean, and clean the detector with the special
alcohol.