2 Specifications are subject to change without notice (12.09.07)
Mode of Operation
The E 83-20 is a small AC
current metering transformer
with standardized 4-20
mADC output. This makes it
very useful as an AC current
interface to a PLC with 4-20
mADC input.
Used with relays DIB01,
PIB01, DIC01 or PIC01, one
or more setpoints can moni-
tor the current and signal
alarm.
In the 5 A range the E 83-20
is often used as a 4-20
mADC signal converter for
larger standard AC current
transformers with 5 AAC
secondar
y output.
The metered conductor is
drawn through the central
hole of the current metering
transformer. It is possible to
measure currents below the
nominal range by drawing
the conductor through the
hole several times. If the
conductor is drawn thr
ough
the central hole e.g. 5 times,
the transformer will register
5 AAC when the current in
the conductor is 1 AAC.
Resistance/Voltage Curve Input/Output Curve
20
16
12
8
4
50
100
Input
(% of range)
Output
(mADC)
Max. load resistance versus loop voltage
(V)
Loop voltage
Max. R load
(Ω)
Output Specifications
Output current (sink)
4-20 mADC
Maximum output current 30 mADC
T
olerance of output current
@ 50 Hz ± 2%
Temperature variation ± 400 ppm/°C
Frequency variation 10 ppm/Hz
Power supply (loop voltage) 10-40 VDC
General Specifications
Power ON delay < 2 s
Reaction time T < 200 ms
I
ndication for
Power supply ON LED, green
Environment
Degree of protection IP 20
Pollution degree 3
Operating temperature -20° to +50°C (-4° to +122°F)
Housing
Dimensions 22.5 x 56 x 49 mm
Material ABS
Weight 70 g
Approval UL
CE Marking Yes
EMC Electromagnetic Compatibility
Immunity According to
EN 61000-6-1
(tolerance of output cur
rent:
± 2%)
According to
EN 61000-6-2
(tolerance of output current:
± 5%)
Emission According to
EN 61000-6-3
E
83-20-50
