DIN 96x48mm 4 1⁄2 DIGIT POWER METER WITH RELAY OUTPUTS, ANALOGUE SIGNAL OUTPUT, RS485

Din 96x48mm digital single parameter power meters either as Watts, VAR or Power Factor. The meters can be specified or both single and three phase systems, 3 or 4 wire and are suitable for both balanced and unbalanced loads. The meters can be specified as a “display only” meter, or with a choice of one or two outputs. One relay or two relays that can be specified as latched or non latched, or an isolated analogue output with or without one relay output. Or with, or without RS485 MODBUS RTU which can also be with or without one relay output. The meter utilises the latest microprocessor technology in both the setting and operation of the meter.

Measuring accuracy: ≤±0.5% FS ±1 digit

Waveform effect: ≤0.2% FS at 30% distortion

Sampling rate: 15 cycles / sec

Response time: 100mSec

System connection:
1P2W (1 CT required)
3P3W (2 CT’s required), suitable for balanced or unbalanced loads
3P4W (3 CT’s required), suitable for balanced or unbalanced loads

Display: 20mm high red LEDs

Voltage input:
Max 500VAC L-L or L-N
VT inputs specify between:
50V-1000KV primary / 50-500V secondary

Frequency:
50/60Hz ±3%
Or 400Hz ±3%

Current input: 1 Amp or 5 Amp direct CT inputs specify CT ratio:1-10000 Amps primary / 1 Amp or 5 Amp secondary

Input burden voltage: ≤0.5VA per phase

Input burden current: ≤0.1VA per phase

Over volts withstand:
x2 continuously
x4 for 2 Secs

Over current withstand:
x3 continuously
x10 for 10 Secs
x50 for 1 Sec (5 Amp version)

Aux supply:
115/230 VAC ±15%, 50/60Hz
ADL: 20-56V AC/DC
ADH: 85-264VAC & 100-300VDC

Power consumption: 5VA

Operating temperature: 0-60 ̊C

Operating relative humidity: 20-95% RH

Temperature coefficient: ≤100PPM / ̊C

Storage temperature: -10 ̊C to +70 ̊C

Dielectric strength: AC 2.0KV for 1 min between input, output/s power and case

Protection: IP54

Relay programmable:
Low
Low-Low
High
High-High
Low-High

Latching: Optional please specify

Number of set points: 1 or 2

Energisation functions:
1 or 2 Start delay
Energisation & de-energisation delay
Energisation latching
Hysteresis

Time delay programmable: 0-9 mins 59.9 secs

Hysteresis programmable: 0-5000 counts

Relay contact: 2 x NO: 1A/230VAC, 3A/115VAC

Accuracy: ≤±0.1% of FS

Ripple: ≤±0.1% of FS

Response time: ≤100mSec (10-90% of input)

Output capability: ≤Voltage 1000 Ohm, Current into 600 Ohm max

Protocol: MODBUS RTU

Baud rate programmable: 1200 / 2400 / 4800 / 9600 / 19200 / 38400

Data bits: 8 bit programmable

Parity programmable: Even, odd or none (with 1 or 2 stop bit)

Address programmable: 1-255 programmable

Distance: 1200 Metres

Terminal resistor: 150 ohm at last unit

* Specify relay configuration, delay times if required and any hysteresis