MultiDigit Specification

INPUT
Rated Un Direct connected voltages between 57.8 and 600 V.

Standard voltages offered :-
Three phase four wire
63.5/110 V, 69.3 / 120 V, 120 / 208 V, 220/380 V, 230 / 400 V, 240 / 415 V,
277 / 480V

Three phase three wire
110 V, 120 V, 380 V, 400 V, 415 V, 440 V, 480 V


Range 5-120% Un
Burden 0.5VA per phase
Overload 1.5 x Un continuous, 4 x Un for 1 second

Rated In 1 or 5 amp
Range 5-120%
Burden 0.5VA per phase
Overload 4 x In continuous, 50 x In for 1 second
Frequency 50 / 60 Hz nominal range 45/65Hz

SYSTEMS
Single phase
Single phase 3 wire
3 phase 3 wire unbalanced load
3 phase 4 wire unbalanced load

ACCURACY
Volt 0.5% of reading ± 2 digit
Amps 0.5% of reading ± 2 digit
Frequency 0.1Hz ± 1 digit
PowerFactor 1% of reading ± 2 digit
Active Power 1% of reading ± 2 digit
Reactive Power 1% of reading ± 2 digit
Active Energy 1% of reading (IEC 1036)
Reactive Energy 1% of reading (IEC 1036)
Apparent power 1% of reading ± 2 digit
Demands 1% of reading ±2 digit
THD 1.5% of range V and I

APPLIED STANDARDS
General IEC 688 BSEN60688, BS4889, IEC 359
EMC Emissions BSEN50081/2
Immunity BSEN50082/2
Safety IEC 1010, BSEN601010

INSULATION
Test Voltage 3 kV RMS 60 Hz for 1 min between inputs / case / relay output. ( 2.5kV between RS232 output / inputs / case /relay )
Impulse Test EMC 5kV transient comply with IEC 801 / EN 55020
HF interference EHF 2.5 kV 1 MHz comply with IEC 255-4
Protection Class II complying with IEC348 / BS4753 / DIN 57411 / VDE 0411

AUXILIARY
AC 110 /120/220/230/277 V (± 15% ) 45 to 65 Hz
Burden < 7 VA
DC 12/24/30/48/110/130/220 V (±15%)


DISPLAY

Display: Red LED (software adjustable brightness)
Digits: 3 lines x 4 digits
Digit Size: 7 Segment - 14.2mm high

PARAMETERS DISPLAYED
Volts L1-L2,L2-L3,L1-L3 (3 ph 3 & 4 wire)
L1-N,L2-N,L3-N (1 ph & 3ph 4wire)
Amps-L1,L2,L3
Frequency-System frequency
PowerFactor-P.F. of system.
Active power-total real power of system. (W, kW, MW)
Reactive power-total reactive power of system. (VAr, kVAr, MVAr)
Active energy-total kW.h of system. (kW.h)
Reactive energy-total kVAr.h of system (kVAr.h)
Apparent power-total VA of system (VA, kVA, MVA)
Demands - Amps, Watts and VA of system
Peak Demand - Amps, Watts and VA of system
THD voltages and currents


RELAY

kW.h pulse output, normally open volt free contact 50V 150mA 5W ac/dc
Pulse rate Standard 1 pulse per W.h or kW.h or MW.h depending on input values.
Pulse duration programmable in steps of 20msec from 20 msec to 200 msec.

ENVIRONMENTAL
Working Temperature -20 to +70 deg C
Storage Temperature -40 to +85 deg C
Temperature Coefficient 0.01% per deg C
Relatively Humidity 0-95% non condensing
Warm up time 1 min.
Shock 30g in 3 planes

ENCLOSURE
Standard ANSI 4.5"
Mounting Terminals Via 4 1/4"-28 Screws
Panel Cutout 4.0" Diameter
Material Polycarbonate complying with UL 94 VO
Terminals Screws for 2 x # 14 AWG
IP Rating NEMA 4 / IP54
Weight 1.6lb

OPTION
Pulsed output W.h or VAr.h User programable

APPROVALS
UL, C-UL, CSA

SERIAL COMMUNICATION

RS 232 or RS 485 output
Baud rate programmable 19200, 9600, 4800, 2400
Parity programmable Odd, even or none
Stop bits programmable 1 or 2
Addresses programmable 1 to 247 (RS485 only)
Transmission distance 15 metres RS 232
Transmission distance 1.2kM RS 485

Connections

RS232 + & --
RS485 + , -- & Shield (screen)
Note Shield connection on RS485 units only.

CONTROLS
Two front controls for scrolling up or down, through parameters being displayed.
Used for programming.