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LOW COST
ISOLATOR THAT REQUIRES
LOOP POWER ON BOTH SIDES
SEM1020
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- High
Accuracy / 0.05%
- Small
Size / High Packing
Density
- DIN
Rail Mount
- Loop
Booster
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INTRODUCTION
The SEM1020 is
a low cost isolator that
requires power supplie on
both the input and output
terminals. This must
of course be provided by
two power supplies (V1 &
V2) isolated from each other
to maintain true isolation.
The most common use for
the SEM1020 is to
provide extra drive capabilities
from an existing 4 to 20
ma current loop. The
input circuitry only drops
2.7 V from the existing
current loop and providing
a 24 VDC isolated power
supply is used on the output
side, the isolator will
drive up to 900 ohms.
The isolator is housed inside
a plastic enclosure, suitable
for DIN Rail mounting.
Screw terminals are provided
for wire connections. |
Both V1 and V2
= Can be up to 30 VDC each
Isolator Input
Loop Voltage Drop = 2.7 Volts
Typical
Isolator Output
Loop Voltage Drop = 6 Volts
Typical
GENERAL
SPECIFICATIONS @ 68ºF
| .Input
Range |
.4
to 20ma |
| .Isolation |
.1000
VAC RMS (Flash tested to
3 KV) |
| .Accuracy |
.0.05%
(including Hysteresis and
Linearity) |
| .Stability |
.P60
ppm/ºF |
| .Ambient |
.32-158
ºF, 10-95% RH non-condensing |
| .Time
Constant |
.0.1
sec (to 63% of final value) |
| .Adjustments |
.Front
entry Zero & Span Potentiometers |
APPROVALS
| .EMC |
.TESTED
TO: |
| .IEC
801-2 |
.Susceptibility
to electrostatic discharge |
| .IEC
801-3 |
.Radiated
Susceptibility |
| .IEC
801-4 |
.Susceptibility
to conducted interference |
| .EN
55022 |
.Radiation
emissions |
MECHANICAL
| .Mounting |
.DIN
Rail |
| .Connections |
.Captive
terminal screws |
| .Cable
size |
.12
AWG solid / 14 AWG Stranded |
| .Flammability |
.UL94-V0,
VDE 0304 Part 3 Level IIIA |
SEM1020
Instruction Manual
ORDER CODE
SEM1020
Low Cost Isolator
Call
(713) 861-1100 for literature and pricing. If you prefer to ask
for information via the internet, email info@sandelius.com.
© 2001 Sandelius Instruments, Inc.
- All Rights Reserved
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