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Passive Loop Powered Isolator
0–20mA
0–20mA
0–20mA
max. 50mA max. 50mA
max. 30V
max. 27.5V
IN
0–20mA
LOAD
TEST VOLTAGE
–3dB FREQUENCY
ACCURACY
TEMPERATUR E
<0.1%
+<0.02% / 100
1000
70Hz
500V
˜
–20 ... + 65°C
– 4 ... + 145°F
M3862X
US> 2.UL+UV+UB; UV < 2,5V
R
B
=
U
B
20mA
20mA
U
S
–2UL–2,5V
U
L
U
V
R
L
R
B
U
S
U
S
U
L
LoadSignal
OUT
Passive Loop Powered Isolator
I+
I–
OUT
IN
I+
I–
5 6
1 2
M3863X
IN
OUT
25
20
15
10
5
0
200
400
600
800
1000
U
V
= 1.7V
U
E
/ V
R
B
/
Extended Warranty
Program
SM
DR910
$
215
⻬ Loop Powered
⻬ Isolated
⻬ 0 to 20 mA and 4 to 20 mA Ranges
⻬ DIN Rail Mountable
The DR910 passive isolator is
used for the electrical isolation and
processing of analog 0 to 20 mA or
4 to 20 mA standard current signals.
The DR910 provides electrical
isolation between the control
electronics and process I/O. In
addition, interference signals above
75 Hz are effectively suppressed.
Input and output circuit do not
require separate auxiliary power.
The DR910 obtains power from the
input signal. The modules are
snapped onto symmetrical DIN rails
in accordance with EN 50 022.
Voltage Drop (V)
Voltage Drop at Input
Load Resistance (Ω)
93.1 (3.66)
DR910, loop
powered
isolator, $215,
shown smaller
than actual size.
RAIL-35-2 DIN
rail, $15 sold
separately,
shown smaller
than actual size.
Dimensions: mm (in)
6.2
(0.24)
When using the DR910, ensure that
the current-driving voltage of the
measuring transducer is sufficient
for driving the maximum current of
20 mA, with a power loss of 1.7V
(1.7V + (20 mA * RLOAD).
Voltage drop across the input is
102.5
(4)
calculated by determining the load
resistance of the output loop,
drawing a vertical line to the curve
(see diagram), then horizontally to
the voltage drop. The energy for the
supply on the input side is taken
from the analog input signal. Due
to the dynamic input resistance,
a power loss of approximately 1.7V
drops at the module input.
Temperature Coefficient:
Specifications
Input Range: 0 to 20 mA, 4 to 20 mA
Maximum Input Current/Voltage:
40 mA/18 Vdc
Input Resistance@ 20 mA:
125 to 1125 Ω (dependent on load)
Voltage Drop at Input: See chart
Max Input Frequency: <75 Hz
Response Time: 5 msec max
Output Signal: 0 to 20 mA,
4 to 20 mA
Max Load Resistance:
≤600 Ω @ 20 mA
Isolation Voltage:
1.5 kV, 50 Hz, for 1 minute
Accuracy: ≤0.1% of full scale
Operating Temperature:
-20 to 65°C
To Order, Call or Shop Online at omega.com
≤0.002%/K of the measured value
Enclosure: Case body is black,
polyester PBT
Mounting: Standard DIN style rail,
including top hat (T) profile rail
according to EN50022—35 x 7.5
Weight: 56 g (2 oz)
AVAILABLE FOR FAST DELIVERY!
To Order
Model No. Price Description
DR910 $215 Passive loop powered isolator
RAIL-35-1 10 35 mm (1.4") DIN rail, 1 m (3.3') length
RAIL-35-2 15 35 mm (1.4") DIN rail, 2 m (6.6') length
Comes complete with operator’s manual.
Ordering Example: DR910, passive loop powered isolator and OCW-1, OMEGACARESM1 year
extended warranty for DR910 (adds 1 year to standard 1 year warranty), $215 + 22 = $237.
(Specify Model Number)
OMEGACARESMextended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
covers parts, labor and equivalent loaners.
SM
SM
XX
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