Product Description
Function: 
Real-time measurement and indication on AC or DC voltage(current) in an electric circuit; Program mable CT/PT ratio; Higher and lower limit alarm output and programmable rely time of alarm. 

Size: 
96*96mm, 48*48mm, 96*48mm. 72*72mm

Basic parameters: 
Measuring range: 
AC voltmeter AC 10 ~ 600V, external PT is necessary if more than 600V
DC voltmeter DC 10 ~ 600V
Accuracy: ± (0.5%FS+1 digit)
Measuring display mode: 4 LED nixietube effective value display
Resolution: Last figure one digit
Overflow indication: The top digit display "1" or "-1" and other digit hiding
Auxiliary power supply: AC 220V± 10%
Alarm contact capacity: AC250V/1A
Alarm Shift Difference: 0.1%FS~50.0%FS
Alarm delay time: 0.0~99.9s programmable

Terminal arrangement and wiring connection: 
( Attention: If it is not the same with the wiring schema of the diagram behind case, please accord to the one of diagram behind case)

POWER: Auxiliary power input port of instrument, Auxiliary power supply is AC 220V± 10% (please note if you need special power supply). 
INPUT: Signal input port of instrument, HI represents"+" port of DC input signal, fire wire terminal of AC voltage input signal and inlet wire terminal
Of AC current input signal. 
LO: "-" port of DC input signal, the other one wire of AC voltage input signal; The outlet wire terminal of AC current signal input
OUT: The alarm contact output port of meter