Iskra MC320 User Manual

TECHNICALDATA

Measuringcentres
–
MC320,MC330,MC350&MC350H ‐ User’sManua
l
4
9

Modules
Relayoutput
(MC330,MC350,MC350H
only)

Purpose alarm,pulse,general
purposedigitaloutput
Type ElectromechanicalRelayswitch
RatedvoltageAC 250VAC
Max.switchingcurrentAC 1000mAAC
RatedvoltageDC 250VDC
Max.switchingcurrentDC 200mADC
(validforresistiveload)
Contactresistance ≤100mΩ(100mA,24 V)
Pulse
(ifusedaspulseoutput)
Max.No.4000imp/hour
Min.length100ms
Insulationvoltage
Betweencoilandcontact 4kVACTRMS
Betweencontacts 1kVACTRMS
S0(pulse)output

Purpose pulse,alarm,generalpurpose
digitaloutput
Type Optocoupleropencollectorswitch
Ratedvoltage 40VAC/DC
Max.switchingcurrent 30mA(R
ONmax
=8 Ω)
Pulselength(ifusedaspulse
output)
programmable(2…1000ms)
Tariffinputmodule

Ratedvoltage
230V20%AC/DC
75…110VAC/DC
Max.current <0.6mA
Frequencyrange 45…65Hz
ONvoltage 40...120%ofratedvoltage
OFFvoltage 0...10%ofratedvoltage
Digitalinputmodule
(MC330,MC350,MC350Honly)

Ratedvoltage
230V20%AC/DC
75…110VAC/DC
24VDC
Max.current <0.6mA
Frequencyrange 45…65Hz
ONvoltage 40...120%ofratedvoltage
OFFvoltage 0...10%ofratedvoltage
Analogueoutput
(MC350, MC350H, with aux.
powersupplytypeHonly)

Outputrange 0…20mA
Accuracy 0.5%ofrange
Maximumload 150Ω
Max.voltageonoutput
(opencircuitcurrentoutput)
5V
Linearization Linear,Quadratic
Max.No.ofbreakpoints 5
Outputvaluelimits 120%ofnominaloutput
Responsetimeofanalogueoutput Dependsonset
Averageinterval
(8–256periods)
Residualripple <1%p.p.


Iskra MC320 Specifications

General

Frequency	50 Hz
Accuracy class	1
Test Voltage	4 kV
Voltage	3 x 230 V / 400 V
Communication	RS485
Standards	IEC 62053-21, IEC 62052-11
Display	LCD