Đồng hồ đa chức năng - MFM384

Đồng hồ đa chức năng  - Mã hiệu: MFM384

Hãng sản xuất/ Nước sản xuất: Selec/Ấn Độ

Display : LCD
4 rows, 4 digits (Lowest 8 digits for energy display)
Bargraph representation for current
+ Input Type : 3Ø-3/4 wire, 2Ø-3 wire, 1Ø-3 wire, 1Ø-2 wire
+ Input Voltage : 19 to 519V AC (phase to phase), 50/60Hz
11 to 300V AC (phase to neutral), 50/60Hz
+ Input Current : 1A / 5A Max (External CT must be connected for current more than 5A)
+ Resolution : For energy- 0.01k, 0.1k, 1k, 0.01M, 0.1M, 1M, 10M
(depending upon CT ratio X PT ratio)
: For Power, Voltage, Current- Auto resolution
: For Power factor- Resolution is 0.001
+ Measuring
Parameters : -Voltage (P-P / P-N) (Individual / Average)
-Current (I1, I2, I3) (Individual / Average)
-Frequency
-Power Factor (Individual / Average)
-Active, Reactive, Apparent Power (Individual / Total)
-Active, Reactive, Apparent Energy (Total)
+ Accuracy : Voltage(L-N / L-L), Current - 0.5% of F.S
Power factor - ±0.01 PF
Frequency - 0.1%
Power ( kW, kVA, kVAr) - ±1% of F.S
Active energy - Class 1
Reactive energy - Class 2
Apparent energy - Class 1
+ C.T Secondary programmable between 1A or 5A.
+ C.T primary programmable from 1A / 5A to 10,000A (Programmable for any value)
+ P.T primary programmable from 100V to 500kV (Programmable for any value)
+ P.T secondary 100 to 500V AC (phase to phase)
+ Supply Voltage : 90 to 270V AC / DC
+ Pulse Output : 1(Opto-isolated)
Pulse Voltage : 24V DC
Pulse Current : 100mA (Max)
Pulse Duration : 100ms
+ RS485 MODBUS Communication
+ Operating Temperature: 0 to +50° C