Single Phase Post-Pre Paid Meter WHM100
The WHM100 is the first in a range of highly competitive smart meters, Developed and Patented to meet the changing requirements of worldwide utility markets, the WHM100 meter benefits from modern technology and up to date manufacturing techniques.
IEC 62053-21, 62053-11, SANS 1524
Product features include:
- High Accuracy, supports IEC 61036 and IEC 61268
On-Chip Digital Integrator enables direct interface with current sensors with di/dt output
The chipset supplies Active, Reactive and Apparent Energy, Sampled Waveform, Current and Voltage RMS
Less than 0.1% error over a dynamic range of 1000 to 1 Positive only energy accumulation mode available
An On-Chip user Programmable threshold for line voltage surge and SAG, and PSU
supervisory Digital Power, Phase and Input Offset Calibration
An On-Chip temperature sensor (+ 3ºC typical)
A SPI compatible Serial interface
A pulse output with programmable frequency
An Interrupt Request pin (IRQ) and Status Register
Proprietary ADCs and DSP provide high accuracy over large variations in environmental
conditions and time Reference
ADE 7753 IC
512Kb FRAM, 32MB Flash
ARM 7 Microprocessor
SPI compatible Serial interface
2 x 16 LCD display
RS232 Interface, Real Time Clock
Battery Backup 3.3v
Unique ID Number
Compact Size and Weight
No data loss if power fails with Load control
Post or Pre Paid meter in one
Quad Band GSM/GPRS
Anti Tampering and Bypass Detection
Software features include:
- Electricity usage in kW/h or Currency
Alarm condition for minimum / maximum (Ampere) usage
Over and Under voltage alarms
Set meter to Post or Pre Paid
Peak usage
Remote devices—1 to 5 remote relay devices—optional
VRMS Peak
IRMS Peak
Communicate with multiple devices via GPRS concurrently
60 days data storage, Data time stamp, TOU, kW/h, Rate, Season
Firmware upgradeability via JTAG and GPRS
Parameters programmable via GPRS / SMS
Patents : 2005/08879, 2005/08880, 2005/08881, 2005/08882, SABS, IEC, ICASA Approved
