Polyphase Electronic Vector Meter (LT/HT)

PRISM EMV-104

Features

Metering Complies to:
IEC 62053-21
IEC 62053-22
IEC 62053-23

Multi-Energy Measurement, Recording and Billing
Per Phase Current, Voltage, Frequency and Power Factor
Maximum Demand with programmable Demand integration
period
Optocom / Bi-Directional Communication Port
Real-time Load Profiling
Large Digit Liquid Crystal Display (LCD)
Internal Real Time Clock and Calendar with Battery Back-up
Extensive Security Features Along with Diagnostics and
Cautions Alerts
3 display modes are provided normal, alternate and test modes
with indication
Meter has a soft Meter Reading Multiplier to avoid complex
calculations with the Meter Output Data
Annual Calendar Programmable for Four seasons, Four
Tariffs/Rates daily, minimum 100 programmable dates/days to

account for holidays and weekends are available
Meter is Programmable through interactive Software with User
Friendly Graphical Interface
The Meter Necessary Data is available all the time in a Non-
Volatile EEPROM

Basic Data Recording And Storage

Four TOD periods Energies (kWh)
Four TOD periods Energies (kVarh)
Four TOD periods Maximum Demand (kW)
Four TOD periods Maximum Demand History (kW)
Four TOD periods Cumulative Maximum Demand (kW)
No. of Resets along with Date and Time Stamp
Present Interval Demand
Time Left in Interval
Average Power Factor, Continuous and By Rate
Last Six Months Billing Data kWh, kVarh, kW continuous and by rate
Copy of last 16 Months Overall Energies and Maximum Demand
Reset of Maximum Demand available on
Automatic on pre-defined dates
Through optical head communication
Manual Reset

Security Features And Event Recording

Meter Possesses a Unique Meter Serial no. that is stored in Non-Volatile Memory
Meter keeps record of Total No. of times Programmed and the identification of the last programmer along with
Date and Time Stamp
A Programmable Meter ID Code is also available in the Meter Firmware
Three levels of access/security codes are available
Meter does keep on recording/operating as long as any voltage exists with or without neutral connection
No access to manual Programming of the Meter
User Name and Address can be programmed into meter
Magnetic Alternate Mode button provided to avoid user access to meter board
Sealable Reset and Test Mode buttons
The meter is protected against external Strong Electro/Radar Magnet, interference & complies with all relevant
IEC standards for functional performance and loss of data