MCF51EM256-based Poly Phase Energy Meter Reference Design 110V Technical Specification, Rev. 0

2

Freescale Semiconductor

Mechanical

Dimensions (WxHxD)

168 x 242 x 84 mm

Weight

1.745kg

Enclosure

Plastic (PC/ABS blends)

Sealing

Sealing screws provision

Environmental

Compliance

IEC 60529

Ingress protection

IP 51 (Indoor type meter)

Operating Temperature

-25˚C to +55˚C

Storage Temperature

-25˚C to +70˚C

Humidity

95%

Features

Measurement parameters

Voltage, Current, Frequency, kWh import/export, kVArh

import/export/lead/lag, kW, kVAr, Power factor.

Tamper Recording

Logging of tampers with time stamp for Voltage Failure, Current

Failure, Voltage unbalance, Current Unbalance and Cover open.

LED indication for tamper

Tamper counter showing number tampers from last reset of counter.

Load profile

Load profile interval period: 5, 10, 15, 30, 60 minutes and 1 day.

Maximum demand

Programmable MD interval period of 30 minutes and 60 minutes

MD can be reset by using Reset key.

Display

Custom built metering specific LCD with backlight. Eight digits 7

segment display for parameters with symbol identifiers.

Auto scroll

Manual scroll using UP and DOWN keys

Communication

Optical port as per standard IEC 62056-21

RS 232 port for debug and BDM port for programming.

Data security

Data storage in non-volatile memory

2 Levels of password: for programming, configuration and for auto

calibration.

Output device

LED pulses proportional to kWh, kVArh

LED for Power on indication