MFM Series

Meters_2013.QXD_Meters 8/27/13 9:10 AM Page 6
MFM Series
FEATURES
• Measurement Functions
•3 Ø Voltage (True RMS)
•3 Ø Current (True RMS)
•3 Ø Power Factor
•3 Ø Power (Active, Reactive, Apparent)
•Energy (Active, Reactive, Apparent)
•Frequency
• Programmable CT/ PT Primary/ Secondary
• RS485 Modbus RTU Communication
• Single Pulse Output
CAT. NO.
Display
Display Type
Digits
Bargraph
Display Scrolling
Supply Specification
Input Specification
Electrical Wire System
Input Voltage Range
Input Current Range
Frequency
Parameter Resolution
Energy
Power, Voltage, Current
Power Factor
Accuracy Class
Voltage (L-N, L-L), Current
Power Factor
Frequency
Active, Reactive, Apparent Power
Active, Reactive, Apparent Energy
Output Specifications
Pulse Output
Pulse Voltage
Pulse Current
Pulse Duration
Communication
Programmable Parameters
CT Primary
CT Secondary
PT Primary
PT Secondary
Environmental Specifications
Temperature
Humidity
Protection Level
Physical Specifications
Size
Weight
Terminal Size Acceptability and Torque
DIMENSIONS
MFM Series
6
E253771
MFM384-C-CU
MFM383A-CU
LCD Display with backlight
4 rows of 4 digits
1 row of 8 digits for energy display
Bargraph for current percentage
Automatic/ Manual
LCD Display with backlight
3 rows of 4 digits
1 row of 7.5 digits for energy display
–
Automatic/ Manual
85 ~ 270 VAC (50/ 60Hz)
85 ~ 270 VAC (50/ 60Hz)
3 Phase (3/4 wires), 2 Phase (3 wire), 1 Phase (2 wire)
11 ~ 300 VAC (Phase to Neutral)
19 ~ 519 VAC (Phase to Phase)
10mA ~ 5A (External CT required for current >5A)
45 ~ 65Hz
3 Phase (3/4 wires), 2 Phase (3 wire), 1 Phase (2 wire)
11 ~ 300 VAC (Phase to Neutral)
19 ~ 519 VAC (Phase to Phase)
10mA ~ 5A (External CT required for current >5A)
45 ~ 65Hz
0.01k, 0.1k, 1k, 0.01M, 0.1M, 1M
Auto resolution
0.001
0.01k, 0.1k, 1k depending on CT ratio x PT ratio
Auto resolution
0.001
+/- 0.5% of Full-Scale Value
+/-1%
0.1 Hz +/- 0.1 Hz
1%
Class 1
+/- 0.5% of Full-Scale Value
+/-1%
0.1 Hz +/- 0.1 Hz
1%
Class 1
1
24 VDC max.
100mA max.
100ms +/-5ms
1
24 VDC max.
100mA max.
100ms +/-5ms
RS485 MODBUS Communication
–
1A/ 5A ~ 10,000A (Programmable for any value)
1A/ 5A (External CT must be connected for current >5A)
100V ~ 500 kV (any value)
100V ~ 500 VAC (any value)
1A/ 5A ~ 10,000A (Programmable for any value)
1A/ 5A (External CT must be connected for current >5A)
100V ~ 10 kV (any value)
100V ~ 500 VAC (any value)
Operating: -10°C~55°C, Storage: -20°C~ 75°C
Up to 85% RH
IP65 for Faceplate
Operating: -10°C~55°C, Storage: -20°C~ 75°C
Up to 85% RH
IP65 for Faceplate
1/4 DIN, 96 mm x 96 mm
0.70 lbs (318g)
20-14 AWG (0.5 - 2.5mm2), 6-7 lb-in. (0.68 - 0.79Nm)
1/4 DIN, 96 mm x 96 mm
0.70 lbs (318g)
20-14 AWG (0.5 - 2.5mm2), 6-7 lb-in. (0.68 - 0.79Nm)
TERMINAL CONNECTIONS
MFM384-C-CU
MFM383A-CU
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com