DC CURRENT OR VOLTAGE 4kV OR 1.5kV ISOLATION

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Selection Guide

M100-DA1DC Current input 4kV isolation
M100-DV1DC Voltage 20mV…11.9V input 4kV isolation
M100-DV2DC Voltage 12V…600V input 4kV isolation
M100-DA11DC Current input 1.5kV isolation
M100-DV11DC Voltage 20mV..11.9V input 1.5kV isolation
M100-DV21 DC Voltage 12V..600V input 1.5kV isolation

Typical Applications

These isolators isolate the DC Input signal from the DC Output signal, which is directly proportional to the input signal. There are two levels of isolation offered, the M100-DA1/DV1/DV2 have 4kV isolation and the M100-DA11/DV11/DV21 have 1.5kV isolation. A wide range of both D.C. Current and voltage inputs are offered. Typically these isolators can be used to prevent earth loops which occur when a measuring source that is earthed, is connected to a computer or data logger that is also earthed. Another common use is to provide isolation on the inputs to a PLC. All of these isolators have either A.C. or D.C. auxiliaries which means that they have an advantage over loop powered units, in that if for any reason the output lead should become disconnected, the input will not be saturated.

Technical Information

INPUT
Rated value In±1mA…10A M100-DA1/DA11
Voltage drop20mV
Rated value Un±20mV…11.9V M100-DV1/DV11
Impedance10 kOhm/volt
Working Range±125% In
Overload continuous4 x In M100-DA1 (upto 20A max)
Overload continuous1.5 x Un M100-DV1/DV2
OUTPUT
Rated value mA0-1/5/10/20 & 4-20mA
Load Resistance12/2.4/1.2/0.6 kOhm
Rated value volts0-5/10 & 1-5V
ADJUSTMENT
Zero±2%
Span±10%
AUXILIARY
A.C.Voltage115/230/400V(±25%/45-65 Hz/<2VA
D.C. Voltage24/48/110V(±20% / galvanically isolated / <3W)
WEIGHT&CASE SIZEApprox 0.4kg. 55 case
INSULATION
M100-DA1/DV1/DV24kV as shown in general
M100-DA11/DV11/DV21Test voltage 1.5kV RMS 50Hz
1 min between input/case/output

Ordering Information

Product CodeInput InOutputAux FreqOptions
M100-DA111mA4-20mA230v50Hz

Options

1Non standard Inputs/Outputs as far as technically viable
2A.C. Auxiliary in range 57.7 to 450 volts
3Calibration at temperature other than 23ºC

Connection Diagrams