User Manual

Chapter 1 General Information
Multi-Mon Multiple Circuit Energy Monitor
7
Chapter
Chapter Chapter
Chapter 1
1 1
1 General Information
General InformationGeneral Information
General Information
The Multi-Mon is a 3-phase, multi-channel, multi-function energy meter
suitable for use in single-phase and multi-phase electrical networks.
Meter highlights
Meter highlightsMeter highlights
Meter highlights
• Multi-channel submetering – up to 36 single-phase or 18 two-phase
or 12 three-phase submeters in a single device. Any combination of
single-, two-, and three-phase consumers can be chosen up to a
total of 36 current inputs.
• Automatic totalization energy from different sub-consumers
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Features
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• Calibrated to meet Class 0.5S active energy and Class 1 reactive
energy meter accuracy
• 3-phase/2-phase/single-phase meters (true RMS, volts, amps,
power, power factor, neutral current)
• Ampere/Volt demand meter
• Time-of-Use, 4 energy/demand registers x 6 tariffs
1
, 4 seasons x 4
types of days, 8 tariff changes per day, easy programmable tariff
schedule
• Import/export energy and power demands
• Automatic 120–day daily profile for import/export
2
energy and
maximum demand readings (total and tariff registers) separate for
each submeter
• Event recorder for logging internal diagnostic events and setpoint
operations
• Data recorders; programmable periodical data logs separate for
each submeter
• Embedded programmable controller (4 control setpoints,
programmable thresholds and delays) separate for each submeter
• Easy to read 2-row x 16 characters LCD display with backlight
(Multi-Mon only)
• 50/60 Hz operation
• Internal clock, keeping the clock running over one week without
external power
• Highly Accurate Current Transformer with overvoltage protection
diodes to avoid any damage while disconnecting the primary
current sensor
• Standard RS-485 serial port
• Optional second communication port. Communication options
available:
RS-232
RS-422/485
56K Dial-up modem
Ethernet 10/100BaseT
• Modbus RTU and Modbus ASCII communication protocols
• Easy field upgrading device firmware through any communication
port
1
From Firmware version 18.4.1
2
From Firmware version 18.5.1