Technical Data; Meter Mode - RDL MHC-1F User Manual

TECHNICAL DATA

1. INTRODUCTION
1.1 Overview
This manual covers the specification and operation for the MHC-1f single phase whole current
active energy credit meter.
à The main features of the product are:
All solid state with 8 character LCD
à
Single tariff rate
à
No battery replacement required
à
à Reverse Energy Detection
à Extension Terminal Cover to Protect Supply Cables
2. Technical Data
The MHC-1f is an alternating Current Static Watt Hour Credit Meter, Class B. Double Insulated.
2.1 Meter LED & Power Registration Security
The red LED mounted on the front panel will pulse at a rate of 1000 pulses per kWh.
Power registration is recorded in non-volatile memory under control of the microprocessor which
is updated every 24 hours and in the event of a power failure.
2.2 General
Current Rating: 100 Amps
Terminal Arrangement: BS 7856
Main Terminal Dimensions: 8.0mm to 8.2mm
Terminal Construction: Solid Brass
Terminal Screws: 6.00mm
2.3 Power Supply
Rated Volatge: 230V
Operating Volatge RangeL 220V-240V
Current Range: 1.0-20 (100A)
Frequency: 50Hz Standard
2.4 Metrology
Meter Accuracy: Active energy, Class B (1%)
2.5 Environmental
Temperature Operating Range: -25 to 55°C
Storage Range: -25 to 55°C
Transportation Range: -25 to 70°C
Ingress Protection: IP51
Maximum period of 6 hours at the extreme of its temperature range.
2.5 Dimensions
Size: 120mm (H) x 125mm (W) x 54mm (D)
Weight: 0.410kg
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3. NORMAL FUNCTIONAL OPERATION IN METER MODE
3.1 Normal Operation Display
During normal operation the display on the MHC-1f will be shown below.
DISPLAY REMARKS
XXXXXX.X kWh XXXXXX.X kWh registered on current tariff
3.2 Reverse Energy Detection
DISPLAY REMARKS
If reverse power is detected above a pre-determined level
the display will indicate "rEd" (Reverse Energy Detection).
"rEd"
Reverse energy warning can be removed by isolating and
reinstating the power supply.
3.3 Additional Displayed Information
On first application of power, or following a power cut, the display on the meter will be one of
those shown below.
4. FUNCTIONAL OPERATION ON APPLICATION OF POWER
4.1 Power Up operation Display
During power up operation the display on the MHC-1f will be one of those shown below.
DISPLAY REMARKS
88888.8.8.8
Test all character positions on display.
kWh
Software / Firmware Version
XXXX.XXX On first application of power, or following a power cut, three decimal
kWh places are displayed for the first 30 minutes.
XXXXXX.X
Normal Operation Display.
kWh

METER MODE

Call: 01803 697 600
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