MFM374-CU, Multi-Function Meter

MFM Series

3 rows of 4 digits
Compatible for 3 phase (3/4 wires), 2 phase (3 wire), 1 phase (2 wire)
7-segment red LED display
Accuracy of ± 0.5% for voltage & current, 0.1% for Frequency, 0.01% for PF, 1% for Power, Class 1 for
Measures all electrical parameters (True RMS Voltage, True RMS Current, Active power, Reactive power, Apparent power, Power factor, Frequency, Active energy, Reactive energy & Apparent energy)
85 to 270V AC auxiliary supply
Memory retention for ten years

Digital Display: 7 Segment LED Display
Digits: 3 rows of 4 digits, 8 digits for energy display
Bargraph: none
Display Scrolling: Automatic/ Manual
Supply Specification: 85 ~ 270 VAC (50/60Hz)
Electrical Wire System: 3 Phase (3/4 wires), 2 Phase (3 wire), 1 Phase (2 wire)
Input Voltage Range: 11 ~ 300 VAC (Phase to Neutral); 19 ~ 519 VAC (Phase to Phase)
Input Current Range: 10mA ~ 5A (External CT required for current greater 5A)
Parameter Resolution - Energy: 0.01K, 0.1K, 1K, 0.01M, 0.1M, 1M
Parameter Resolution - Power: Auto resolution
Parameter Resolution - Power Factor: 0.001
Accuracy Class - Voltage (L-N, L-L), Current: +/-0.5% of Full-Scale Value
Accuracy Class - Frequency: 0.1 Hz
Accuracy Class - Power Factor: +/-1%
Active, Reactive, Apparent Power: 1%
Active, Reactive, Apparent Energy: Class 1
Pulse Output: 1
Pulse Voltage: 24 VDC max.
Pulse Current: 100mA max.
Pulse Duration: 100ms +/-5ms
Communication: none
CT Primary: 1A/ 5A ~ 10,000A (Programmable for any value)
CT Secondary: 1A/ 5A (External CT must be connected for current greater 5A)
PT Primary: 100V ~ 500 kV (any value)
PT Secondary: 100V ~ 500 VAC (any value)
Temperature (meters): Operating: -10°C~55°C, Storage: -20°C~ 75°C
Humidity: Up to 85% RH
Size (meters): 1/4 DIN, 96 mm x 96 mm
Weight (meters): 0.71 lbs (320g)
Terminal Size Acceptability and Torque: 20-14 AWG (0.5 - 2.5mm2), 6-7 lb-in. (0.68 - 0.79Nm)

Part Number MFM374-CU

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