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 DescriptionTechnical dataSchematicDimensionsOrder overviewDownloads |
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| Multifunction meter MFM384-R-C | ||
Description
DIN-rail mounted digital multifuntion meter.Features:
- 3Ø Voltage (TRMS), 3Ø Current (TRMS)
- 3Ø Power factor
- 3Ø Power (Active, Reactive, Apparent)
- Frequency
- Password Protection
- CT, PT Primary/Secondary Programmable
- Modbus RTU communication (RS485)
- Max / Min demand power
- CE and RoHS certification
Technical data
| Display | |
|---|---|
| LCD | 3 row, Liquid Crystal Display with backlight |
| Digits | Row 1 with 4 digits, row 2 and 3 with 7 digits |
| LED | Integration of energy (1000 pulse /kWh) |
| Input Specifications | |
| Electrical connection | 3Ø - 3 wire, 3Ø - 4 wire, 2Ø - 3 wire, 1Ø - 2 wire |
| Input voltage range | 19 - 519V AC (L - L), 11 - 300V AC (L - N) |
| Frequency | 45Hz - 65Hz |
| Measuring Parameters | |
| Voltage (L-L/L-N) (individual / average) | |
| Current ( 1, 2, 3) (individual / average) | |
| Frequency, power factor (individual /average) | |
| Active, reactive, apparent power (individual / total) | |
| Active, reactive (import / export) | |
| Minimum / maximum reactive power | |
| Maximum apparent power | |
| Display reset | Programmable (for energy) |
| Resolution energy | 0,01k, 0,1k, 1k, 0,01M, 0,1M, 1M (depending upon CT ratio X PT ratio) |
| Resolution voltage, current, power | Auto resolution |
| Resolution power factor | 0.01 |
| Resolution frequency | 0.1Hz |
| Accuracy voltage (L-N/L-L), current | ±0,5% of full range |
| Accuracy power factor | ±0,01 |
| Accuracy frequency | ±0,1 % (for V>20 L-N, V>35 L-L) |
| Accuracy power (kW, kVA, kVAr) | 1% |
| Accuracy energy (active, reactive, apparent) | 1% |
| Memory retention | 10 years (for energy) |
| Overload rating | 20% continuous over load and able to withstanding 20 times the normal current rating for a period one second. |
| Overvoltage rating | Accept input voltage upto 120% of the nominal voltage |
| Power consumption | 8VA max. |
| Output Specifications | |
| Communication | RS485 MODBUS RTU communication |
| Supply specifications | |
| Auxiliary | 85 - 270V AC (50/60Hz) |
| Isolation | I/P, O/P and Aux. circuits isolated from each other and earth ground. |
| Resettable Parameters | |
| C.T primary | 5A to 10kA programmable for any value |
| C.T secondary | 1A / 5A |
| P.T primary | 1 V to 500kV programmable for any value |
| P.T secondary | 100V to 500V (L-L) programmable for any value |
| Environmental Specifications | |
| Operating temperature | -5 to +60 C |
| Storage temperature | -20 to +75 C |
| Humidity | up to 85% (non-condensing) |
Schematic
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Dimensions
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