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STS (Standard Transfer Specification) prepaid power meters are
designed to facilitate the prepaid payment model for electricity
usage, allowing consumers to pay in advance for their energy
consumption. Three-phase STS prepaid power meters are particularly
suited for industrial and large commercial setups where three-phase
power supply is common.
Built in a RF communication module for the CA368, will lead to the
CA368 can support to developing a AMR management system. The data
concentrator collect the data from nearby RF three phase prepaid
smart meters by RF communication, and then upload the data to our
cloud server by GPRS. You can remotely reading and monitoring the
meters, and also can switch on/off the relay remotely.
Main Features
>• >Compliance with STS (Standard Transfer Specification)
>• >IR optical & RS485 port
>• >Automatically shut off power when Credit be used up
>• >Power limit and low credit warning can be programed flexibly.
>• >Tamper detection and event record such as opening cover, reverse
connection, black-out
>• >Dual power source working on both prepayment and credit mode
>• >Maximum demand measurement and load profiling (on request)
User Benefit
>• BS footprint, easy to install
>• >Low operational and manintenance cost
>• PLC/ RF/ GPRS/GSM communication for AMR/AM I features on your
request
>• >Meter provides various valuable information by punching in Calin's
short codes
Specifications:
Electrical parameters: | |
Nominal voltage Un | 3x240V |
Limited voltage | 60%~120%Un |
Frequency | 50/60Hz+5% |
Basic current(Ib) | 10A |
Maximum current(Imax) | 100A |
Starting current(Ist) | 30mA |
Active energy constant | 400imp/kWh |
Accuracy | |
Active energy to IEC62053‐21 | Class1.0 |
Reactive energy to IEC62053‐23 | Class2.0 |
Power Consumption | |
Power consumption in Voltage circuit | <2W <8VA |
Power consumption in current circuit | <1VA |
Temperature range | |
Operation meter | 25℃ to+70℃ |
Storage | 40℃ to+85℃ |
Insulation strength | |
AC Insulation strength | 4kV at 50Hz during 1min |
Impulse voltage 1.2/50μs mains connections | 8kV |
Electro Magnetic Compatibility | |
Electrostatic discharges | |
Contact discharge | 8kV |
Air discharge | 16kV |
Electromagnetic RF fields | |
27MHz to 500MHz typical | 10V/m |
100kHz to 1GHz typical | 30V/m |
Fast transient burst test | 4kV |
Mechanical requirements | |
Protection Rating | IP54 |
Insulation Classification | Protective Class II |
Maximum cable size | 10 mm |