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RTD Input DIN Rail Signal Conditioners
DRSL-RTD
U DRSL-RTD Non-Isolated and
DRSL-RTD-ISO Isolated Models
U 2, 3 or 4-Wire Pt100 RTD Input
U Pre-Calibrated Temperature
Ranges Selectable
via Dip-Switches
U Slimline Housing—
Only 6 mm (0.24") Wide
U High Accuracy
U Fast Response Time
<30 ms/300 ms (Selectable)
U Excellent EMC Performance
and 50/60 Hz Noise Suppression
The DRSL-RTD Series RTD input
DIN rail signal conditioners provide
a competitive choice in terms of both
price and technology for interfacing
RTD inputs to SCADA systems or
PLC equipment. The DRSL-RTD
and DRSL-RTD-ISO can be used for
signal conversion of 2, 3 or 4-wire
Pt100 RTD inputs into unipolar
analog signals. The DRSL-RTD-ISO
isolated model offers 3-way isolation
between input, output and supply
and provides surge suppression
and protects control systems from
transients and noise. Low power
consumption facilitates DIN rail
mounting without the need for any air
gap. Easy configuration of more than
1000 factory calibrated measurement
ranges is done via DIP-switches.
The unit operates over a wide
temperature range from -25 to 70°C
(-13 to 158°F).
SPECIFICATIONS
INPUT
Input Type: 2, 3, or 4-wire Pt100 RTD
Temperature Range: -200 to 850°C
(-328 to 1562°F)
Sensor Current, RTD: <150 µA
Sensor Cable Specifications: 50 Ω
per wire or 50 nF
Effect of Sensor Cable Resistance
(3 or 4-wire RTD): <0.002 Ω/Ω
Broken Sensor Detection: >800 Ω
Shorted Sensor Detection: <18 Ω
OUTPUT
Current Output
Programmable Signal Ranges:
0 to 20 mA and 4 to 20 mA
Range Limits
(NAMUR NE43 Out of Range):
Below 3.8 mA or above 20.5 mA for
4 to 20 mA output; 0 mA or above
20.5 mA for 0 to 20 mA output
Sensor Error Detection
(Dip Switch Selectable for Enable
or None): Below 3.5 mA or above
23 mA for 4 to 20 mA output; 0 mA
or above 23 mA for 0 to 20 mA
output
Incorrect DIP-Switch Setting
Identification: Below 3.5 mA or
above 23 mA for 4 to 20 mA output;
0 mA or above 23 mA for 0 to 20 mA
output
Output Error Level: DIP switch
selectable for upscale or downscale
Load: 21 mA/600Ω /12.6V max
Load Stability: ≤0.01% of
span/100Ω
Voltage Output
Programmable Signal Ranges:
0 to 10 V, 2 to 10 V, 0 to 5 V and 1 to 5 V
Range Limits (Out of Range):
Range ±2.5%
Sensor Error Detection (Dip
Switch Selectable for Enable
or None): 0V or selected range + 10%
Incorrect DIP-Switch Setting
Identification: 0V
Output Error Level: DIP switch
selectable for upscale or downscale
Load: >10 kΩ min
DRSL-RTD-ISO DIN rail
signal conditioner and
DRSL-PWR-RAIL power
rail (sold separately)
shown actual size.
GENERAL
Supply Voltage
DRSL-RTD: 16.8 to 31.2 Vdc via
connectors
DRSL-RTD-ISO: 16.8 to 31.2 Vdc
via power rail or connectors
Power Consumption: 0.7 W max
Internal Consumption: 0.65 W max
Isolation (DRSL-RTD-ISO Only):
Input/output/supply
Isolation Voltage, Test
(DRSL-RTD-ISO Only): 2.5 kVac
(reinforced)
Isolation Voltage, Working
(DRSL-RTD-ISO Only): 300 Vac
Status LED: Green LED indicates
operational status of the unit and
input sensor
Normal Operation: Flashes for
15 ms at 13 Hz rate
Sensor Error: Flashes for
15 ms at 1 Hz rate
Incorrect DIP Switch Setting:
flashes for 500 ms at 1 Hz rate
Hardware Failure: LED off
Signal/Noise Ratio: >60 dB
Response Time (0 to 90%, 100 to 10%):
<30 ms/300 ms (selectable, provides
either fast response or signal
dampening as needed)
Accuracy
DRSL-RTD: Better than 0.2°C or
±0.1% of selected input range
DRSL-RTD-ISO: Better than 0.1°C
or ±0.05% of selected input range
Temperature Coefficient:
≤±0.02°C/°C
EMC Immunity Influence:
<±0.5% of span
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Extended EMC Immunity
NAMUR NE 21, A Criterion, Burst:
<±1% of span (span = selected
input range)
ENVIRONMENTAL
Operating Temperature: -25 to 70°C
(-13 to 158°F)
Storage Temperature: -40 to 85°C
(-40 to 185°F)
Calibration Temperature:
20 to 28°C
(68 to 82°F)
Relative Humidity: 0 to 95% RH
non-condensing
Protection Degree: IP20
Installation Area: Pollution degree
2 and measurement/overvoltage
category II
CONNECTIONS (DRSL-RTD)
4
4
MECHANICAL
Dimensions: 113 H x 6.1 W x 115 mm
D
(4.4 x 0.24 x 4.5")
Weight: 70 g (0.15 lb) approx
CONNECTIONS (DRSL-RTD-ISO)
DIN Rail Type: DIN EN 60715 - 35 mm
Wire Size: 0.13 x 2.5 mm2/
AWG 26 to 12 stranded wire
Screw Terminal Torque: 0.5 Nm
4
4
3
3
2
2
1
1
No connection
Rail, +24 VDC
Rail, Gnd.
3
3
2
2
1
1
5
5
6
6
7
7
8
8
To Order
Model No. Description
DRSL-RTD
DRSL-RTD-ISO
Non-isolated RTD input DIN rail signal conditioner
Isolated RTD input DIN rail signal conditioner
+
mA
-
+
24 VDC nom. supply
(16.8...31.2 VDC)
-
No connection
No connection
+
5
5
mA
6
6
7
+
V
-
OMEGACARESM extended warranty program is
SM
available for models shown on this page. Ask
7
8
8
-
+
24 VDC nom. supply
(16.8...31.2 VDC)
-
your sales representative for full details when
placing an order. OMEGACARE
Extended Warranty
Program
labor and equivalent loaners.
+
V
-
SM
covers parts,
Accessories
Model No. Description
DRSL-PWR-RAIL
DRSL-PCU
DRSL-MOD-STOP
Ordering Example: DRSL-RTD-ISO isolated RTD input DIN rail signal conditioner, DRSL-PWR-RAIL power rail, DRSL-PCU power connector
unit, DRSL-MOD-STOP module stop and OCW-1, OMEGACARE SM extends standard 1-year warranty to a total of 2 years.
Power rail (with cover and two end covers, one right hand and one left hand), 1 m (3.3') length for use
with DRSL-RTD-ISO only
Power connector unit, 24 Vdc/2.5 A output to power rail for use with DRSL-RTD-ISO only
Module stop (screwed onto power rail to support and hold mounted devices)
2
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