Luzhou Ludao Electric Appliance Co., Ltd
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    Wujian Station, Village Head of Wafang Village, Yutang Town, Luzhou City, Sichuan Province, China
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Pw991 single-phase power meter
Pw991 single-phase power meter
Product details

Characteristics
Upper and lower limit alarm relay output
Red highlight digital tube 0.56 '
Equipped with RS485 communication port
Optoelectronic isolation analog 4-20mA transmission output
Free power supply voltage 165V-245V
Communicating multi parameter measurement
model Power grid standard Frequency range INPUT VOLTAGE Input Current
PW991 single phase 50/60/400Hz 0-600V C.T out 5A
PW993 three-phase three-wire system 50/60/400Hz 0-600V C.T out 5A
PW994 three-phase four-wire system 50/60/400Hz 0-600V C.T out 5A
Measurement inaccuracy:0.5%F.S1Digit(235)
Technical Parameter
Measurement project Power, voltage, current power factor, frequency P, V,I,PF,Hz
A/D conversion V/F conversion
measurement speed About 2.5 times per second
Overflow display “----”
Process value display Red LED(0.56')
Set value display Red LED(0.28')
Power factor -0.51~1~0.5
Transmission output 4-20mA(<500W)
ALARM IN Relay
Communication method RS-485
pressure resistance Ac 1500V 1min
insulation resistance DC 500V≥100MW
power consumption ≤4.5VA
power supply 165V-245V
Anti series mode interference ≥NMR40db(50Hz/60Hz)



Note: The wiring diagram is for reference only and should be based on the instruction manual
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Successful operation!

Successful operation!

Successful operation!