WS79

Single Phase Whole Current Electronic Meter

Accuracy Class	Reactive Class 2.0
Rated Voltage	240 V
Rated Current (max)	5 (100) A / 10 (60) A
Class of Insulation	II
Degree of Protection	IP54
Auxiliary Supply Facility	Optional
Frequency	60 Hz
Dimension	153.4 mm (L) x 118.4 mm (W) x 56.0 mm (H)
Weight	Approximately 0.6 KG
RTC	Variation of accuracy with temperature is less than 0.15s / ˚C / day
`OPTICAL TEST & FUNCTION INDICATOR`
Meter Constant for LED	1000 imp / kWh
Meter Constant for Remote Output	Configurable (5 I/O Port)
`TYPICAL POWER CONSUMPTION`
Voltage circuit active / apparent power at Un	< 2 W / 10 VA
Current circuit apparent power at Ib	< 4 VA
`PULSE OUTPUT`
Pulse Output LED	The constant of pulse output LED is fixed to 1000 imp / kWh
Remote Pulse Output	The contact has a built-in protection. It able to withstand up AC 265 V
`EMC PROPERTIES`
Isolation	4 kV AC, 50 Hz, 1 min
High Voltage	Rise / fall time = 1.2 / 50μs and voltage = 10 kV
`DISPLAY`
LCD	7 digits (in the dial test mode, display energy value with 3 decimals)
Lifetime	10 years
`TEMPERATURE RANGE`
Typical Operation	-25°C to +70°C
Storage	-30°C to +80°C
`ENCLOSURE`
Enclosure Std.	Comply with BS Standard
Materials	PBT +20% GF for meter terminal block. PC +10% GF for meter base. PC（transparent) with UV proof for meter cover & terminal cover

LCD DISPLAY

LCD display main value with 7 digits, the LCD Size: 95 mm x 26 mm, Digit Size: 13 mm x 5.7 mm
4 display modes with programmable display
AUTO Mode Display (Auto Scroll)
ALT Mode Display
TEST Mode Display (with decimal places)
POWER DOWN Mode Display

ANTI TAMPERING FEATURES

Ultrasonic welding for meter housing.
Breakable sealing screw for meter cover.
Security sticker at both side of the meter.
Indication on LCD for any abnormal events status.
The meter will record penalty energy in case of Neutral disturbance & Magnetic interference.
The meter will continue to measure in case of the voltage is not present, but current is present.

COMMS PORT