Surge Safe Din Rail Kwh Meter Single Phase , Anti Tamper STS
Prepaid Meters
The CA168-S is a compact, two wire, keypad-based prepayment
electricity meter which comprises two parts, the Metering Control
Unit ( MCU), or main meter, and the Customer Interface Unit (CIU).
Consumer interaction with the meter and access to meter information
(such as a low credit warning, energy consumption, and load
contactor status) are available using the keypad and LCD display on
the CIU. The CIU is the customer’s only interface with the meter, and is a
compact unit with a user-friendly keypad and display. It is usually
installed in a convenient location in the consumer’s home - remote
from the MCU, and is connected to the MCU with a pair of
communications wires.
The MCU contains all critical metering, number decryption and load
control functionality. It operates independently and is immune to
any form of tampering on the CIU interface. The MCU is usually
installed in a secure, locked enclosure, typically a pavement kiosk
or pole-mounted equivalent. It is outside the consumer’s home to
facilitate easy inspection by the utility at any time and to reduce
the opportunity of fraud by tampering. As an option, the MCU can be
supplied with its own LCD display and keypad, which allows the
utility to view important meter parameters without the need for an
interrogation tool.
The CA168-S is built with surge arrestor that is capable of
sustaining up to 16kV line surges and lightening and also available
with options for SMPS that allows the mete to operate under extrem
low voltage down to 60V or even below.
Major Features
1) 20 digits STS standard compliant
2) Adjustable power limit, low credit warning
3) Programmable emergency credit and disconnection / reconnection
time
4) Unidirectional measurement of reverse energy (SRE)
5) Fraud protection : double line measurement for neutral missing
6) Diagnostic LED indicator
7) High surge withstand capability for areas prone to lightning or
other line surges
User Benefits
a) Easy and low cost to install due to compact and slim-line design
b) Stable and secure communication between MCU and CIU
c) Utility can make payment control settings with the meter, power
limit, muti-rate, tariff plans, etc.
d) Double insulation for consumers' safety
Specifications:
Nominal voltage Un | 220/230/240 V |
Limited voltage | 70%~120%Un |
Nominal frequency fn | 50-60Hz+5% |
Basic current(Ib) | 5-10A |
Maximum current(Imax) | 60-100A |
Starting current(Ist) | 20mA |
Active energy constant | 1000imp/kWh |
Accuracy as Active energy to IEC62053‐21 | Class1.0 |
Power consumption in Voltage circuit | <2W <8VA |
Power consumption in current circuit | <1VA |
Operating temperature | 25℃ to+70℃ |
Storage temperature | 40℃ to+85℃ |
Insulation level | 4kV rms for 1min |
Impulse voltage withstand | 8kV, 1.2/50 μs |
Air discharge | 16kV |
Immunity to HF fields |
|
80MHz to 2GHz with load | 10V/m |
100kHz to 1GHz without load | 30V/m |
Fast transient burst test | 4kV |
Meter shell Protection Rate | IP54(IEC60529) |
Insulation System Classification | Protective Class II |
