Cambridge Transducers

Kilowatt Hour Meters

Description	DIN96 kilowatt hour meters for measuring kWh of individual machines or complete systems. Manufactured to BS5685, IEC521 with a class accuracy of 1% to IEC1036, and supplied in a 96 x 96 mm DIN case. The kilowatt hour meter has a 7 digit non resettable mechanical counter. Pulsed output is available to send to PLC's data loggers and computers. Analogue mA output is also available.
Application	For monitoring the consumption of electricity in a single or 3 phase system. Savings cane made by monitoring and using electricity at the optimum time.

Technical Specification

Rated Current	1 or 5A (<0.2VA / phase purden)
	Range 10-120% of rated current
	Overload 4 x rated current continuous
	50 x rated current for 1 second

Rated Voltage	57-500V (< 0.2VA / phase burden)
	Range 80-120% of rated voltage
	Overload 1.5 x rated voltage continuous
	4 x rated voltage for 1 second

Frequency	50 or 60Hz nominal range

Auxiliary	115 / 230 / 400 AC Voltage

Pulsed Output	Normally open volt free contact,
	50V 150mA 5W AC / DC
	Pulse rate: 0.1, 1 or 10 per kWh.
	Pulse duration: 250msec standard

Analogue output	Rated value 0-1mA into < 5k Ohms
	0-20mA into % < 250k Ohms

Accuracy	Class 1 to IEC 1036

Operating Temp	-25ºC to +70ºC

Temp Coefficient	0.01% per 1ºC

Material	Polycarbonate to UL94VO

Enclosure	IP54

Mounting	4 side brackets and screws

Range

Dimensions (mm)

kwh-Diagram.gif (3520 bytes)

Ordering Information

Options

	Pulsed Output (0.1, 1 or 10 per kWh)
	Analogue Output
	Non standard pulse width
	Calibrate at temp other than 23ºC
	Calibration at Hz 35-450