ELECTRONIC SINGLE PHASE
ENERGY METER
R-283-TOD
It is a solid state single phase TOD (time of day)
and MDI (maximum demand indicator) meter for
the measurement of active energy consumption.
By using state of the art microprocessor controlled
electronic circuitry and comprehensive anti
tampering features, these meters provide
unprecedented flexibility, efficiency and reliability.
R283TOD is an innovative & hi-tech multi tariff
electronic energy meter.
It is designed especially for those regions/areas
where power theft is a major concern. This model
comes up with comprehensive Anti-Tampering
features. State of the art Digital Signal Processor
and highly accurate Sigma Delta ADC integrated
circuits have been incorporated to measure kWh.
Current (I) sensors are provided on both Neutral
and Phase wires to record/measure the energy
in case of different tampering conditions.
FEATURES
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Fulfills IEC 62052, class 1 accuracy requirements.
The meter is protected against Electrostatic Discharge
(ESD), Surge Immunity, AC/DC Magnetic Fields as per
IEC 61000-X-X requirements.
Seven digits register showing energy consumption (kWh)
kWh reading display on LCD in case of power
outage/failure
Meter can also measure voltage, phase current and
neutral current (Optional)
Low battery indication ( ) when 25% life of the battery
is left
Error indication (Error 1/Error 2) in case of
hardware/software faults
Pulse output (3200 impulses/kWh) displayed via LED on
meter name plate
Redefining Technological Horizons
R-283-TOD
Features (Contd......)
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Self diagnostic of memory
Reliable LCD with ultraviolet protection
No effect of tilt on meter accuracy
Resistant against dust & moisture
Anti Tampering Features
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When one of the input wires i.e. phase or neutral is disconnected
or fan dimmer used to tamper the meter then Alarm LED on meter
name plate lights up and segment of Earth Fault Detection “Erth”
appears on LCD. In this condition meter keeps on billing by measuring
the current flow (Current = 1 Amp) with reference voltage and unity
power factor.
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When meter’s input and output are interchanged/reversed to
tamper the meter, then Alarm LED on meter face plate lights up and
segment of Reverse Energy Flow “Rev” displays on LCD, which indicate
that the connection of meter are reversed. However, in this case the
meter keeps on recording energy accurately.
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Protection against external influence such as strong Electromagnetic
field, Radar magnet, CD drive, etc.
Windows Displays Sequence:
Each window displays for 5 seconds and scrolls
automatically.
01. Meter Serial Number.
02. Active Energy (KWh)
03. Maximum Demand Interval (MDI) of Last Month
(KW)
04. Maximum Demand Interval (MDI) of Current
Month (KW)
05. Instantaneous Active Power (KW)
CONNECTION DIAGRAM & INSTRUCTIONS
Connection Diagram
Electrical Specifications:
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Operating Voltage
Basic/Max Current
Reference Frequency
Accuracy Class
Meter Constant
Starting Current
Power Consumption
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Voltage Circuit
Current Circuit
Initial Start up Time
240 Volt
10/40 Amp
50Hz
1.0
3200 imp/kWh
40mA
Less than 2W, 10VA
Less than 4VA (at basic current)
After 5seconds of supply of rated voltage
Dielectric Strength:
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Billing Record
Monthly reading for last 24 months of 4 tariffs and totals (TL) of the
following:
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kWh
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kvarh
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Cumulative MDI(kW)
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Current Month MDI(kW)
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Avg. Power Factor(PF)
Temperature Range:
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Storage
Operating
-25 °C to 80 °C
-25 °C to 60 °C
Relative Humidity:
· Storage
0 to 95%
· Operating
0 to 95%
Weight & Dimension:
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Weight
Dimension
1.26 Kg
23.9cm × 16.4cm ×8cm
Attari Industrial Estate, Plot # 2, Street # 2
18 KM. Ferozepur Road, Lahore- Pakistan
PABX : +92-42-35990015
Tel: +92-42-35924781-4
Fax: +92-42-35924780
E-mail: marketing@mtilimi ted.comURL: www.mtilimi ted.com
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Power Frequency Withstand 4 KV for One Minute
Impulse Voltage Withstand 8 KV: 1.2/50 Micro
Sec.
Short Time over Current 1200 Amperes for 0.5
Sec
Insulation Resistance More than 5 Mega Ohms.
Creepage Distance 20mm Minimum
DC Magnetic Field 1000 Amp/Turns
AC Magnetic Field 400 Amp/Turns
Electromagnetic Compatibility/Disturbance (EMC):
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Electro Static Discharge IEC 61000 – 4 – 2
Radio Interference IEC 61000 – 4 – 3
Fast Transient Burst IEC 61000 – 4 – 4
Surge Immunity IEC 61000 – 4 – 5
Damp Oscillatory Wave Immunity IEC 61000 – 4
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