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System
Control Solutions Ltd
7 Barley Way
South Lowestoft Industrial Estate
Lowestoft, Suffolk. NR33 7NH |
Loop Powered Isolators
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RFI
Protection,
Input
Isolation
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Current,
Voltage,
T/C & RTD
Input
Versions
available
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Up to 2kV
Isolation
Available
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High Noise
Immunity
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High
Accuracy,
Low Cost
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Powered
from Input
or Output
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Loop
Powered
Isolator
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The
420i
Series of loop
powered
isolators
are direct
current
isolators. The
isolator
derives its
power from the
4-20mA input
signal and
therefore
requires no
external power
supply. The
output of the
isolator can
be connected
to any
potential
within 1kV of
the input
negative
terminal while
transients of
2.5kV can be
withstood. An
option exists
to increase
the isolation
to 2kV. Two
variants are
available
which can
provide a 1-5V
or a 0-10V
output.
The
420-TW
Series of
isolating
terminal
blocks can
replace
standard
DIN-rail
terminals to
provide input
isolation,
signal
conversion and
excellent RFI
and noise
rejection. The
units are
powered from
the output
side making
them ideal for
plc and data
acquisition
applications.
Inputs
available
include
thermocouple,
RTD, current
and voltage
and the
standard
output is
4-20mA.
The
420-DIG
family
consist of 2
digital
modules which
will allow the
isolation of
digital inputs
and outputs.
The 420-OEM
unit is a very
small pcb
mounting
4-20mA
isolator which
is ideal for
OEM
applications. |
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SCS Brochure
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