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MT830, MT831
Three-phase electronic meter
A multifunction meter for measurement of active, reactive, apparent energy and demand in four quadrants in two energy flow directions. A modular designed MT831 meter offers a wide range of input/output and communication configurations. A wide voltage and current range enables simple application in the field. The MT830 meter functionality is similar to MT831, except that it is not modular designed.
- Measurement of active, reactive energy, apparent energy and demand in four quadrants
- Measurement of instantaneous and average values of phase voltages, currents and frequencies
- Measurement of power factor
- Measurement of over/under voltages and power failures
- Harmonic analysis of voltage and current (up to the 8th harmonic component)
- Multirate energy and demand registration
- Multi-channel load profile recorder
- Load limiter
- Definition of several energy supply contracts
- A log-book
- A seven-segment LCD in compliance with VDEW
- An optical interface
- Reading and parameter setting in no-power state with an opto-magnetic probe
- MT831: communication modules and I/O modules (inputs and outputs, impulse inputs)
- MT830: function inputs, impulse inputs
- A communication module enables cascade connection of several meters
- Alarm function – a GSM call to a centre
- Whole current connection (up to 120 A) and CT connection (up to 20 A)
- Voltage: multi3 x 57,7/100 V … 3 x 240/415 V
- Current range: 5-10 A, 5-20 A, 5-120 A, 5//1–6 A
- Accuracy class: 2 or 1 or 0.5S (active energy), 3 or 2 (reactive and apparent energy – calibrated to 1%)
- Frequency: 50 Hz or 60 Hz
- External supply: 50-240 V AC/DC
- Communication interfaces:
-MT830 (integrated into the meter): CS, RS232, RS485
-MT831 (integrated into the module): CS, RS232, RS485, PSTN, ISDN, GSM/GPRS, Ethernet
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