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RTD Input Non-Isolated
DIN Rail Loop-Powered Signal Conditioner
DRSL-RTD-LP
U 2, 3 or 4-Wire Pt100 RTD Input
U Powered By the Host (Output)
Current Signal Loop
U High Accuracy Better Than
0.2°C or 0.1% of Selected Range
U Slimline 6 mm (0.24") Housing
U Excellent EMC Performance and
50/60 Hz Noise Suppression
U Fast Response Time
< 30 ms/300 ms (Selectable)
U Pre-Calibrated Temperature
Ranges Selectable via
DIP-Switches
The DRSL-RTD-LP RTD input
non-isolated DIN rail loop-powered
signal conditioner measures a
standard 2-, 3- or 4-wire Pt100
temperature sensor and provides
a passive analog current output
signal. The DRSL-RTD-LP provides
a competitive choice in terms of both
price and technology for interfacing
RTD signals to SCADA systems or
PLC equipment. This unit is powered
by the host (output) current signal
loop. 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: 50Ω
per wire or 50 nF
Effect of Sensor Cable Resistance
(3 or 4-Wire RTD): <0.002Ω/Ω
Broken Sensor Detection: >800Ω
Shorted Sensor Detection: <18Ω
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
Sensor Error Detection
(Dip Switch Selectable for Enable
or None): Below 3.5 mA or above
23 mA
Incorrect DIP-Switch Setting
Identification: Below 3.5 mA
or above 23 mA
Output Error Level:
selectable for upscale or downscale
Load Resistance (Ω): ≤(V
0.023
Load Stability: ≤0.01% of span/100Ω
GENERAL
Supply Voltage: 3.3 to 35 Vdc
Voltage Drop: 3.3 Vdc
Power Consumption: 1 W max
Internal Consumption: 0.65 W max
Signal/Noise Ratio: >60 dB
DIP switch
-3.3)/
supply
DRSL-RTD-LP DIN rail signal
conditioner and RAIL-35-1
DIN rail (sold separately)
shown actual size.
Response Time (0 to 90%, 100 to 10%):
<30 ms/300 ms (selectable, provides
either fast response or signal
dampening as needed).
Accuracy: Better than 0.2°C or
±0.1% of selected range
Temperature Coefficient:
≤±0.02°C/°C
EMC Immunity Influence: <±0.5%
of span
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
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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
DIN Rail Type: DIN EN 60715 -
35 mm
2
Wire Size: 0.13 x 2.5 mm
/AWG 26
to 12 stranded wire
Screw Terminal Torque: 0.5 Nm
CONNECTIONS
4
4
3
3
2
2
1
1
5
5
+ V supply 3.3...35 VDC
6
DRSL-RTD-LP and RAIL-35-1
shown smaller than actual size.
6
7
7
8
8
mA
To Order
Model No. Description
DRSL-RTD-LP
Accessories
Model No. Description
RAIL-35-1
DRSL-MOD-STOP
Ordering Example: DRSL-RTD-LP, RTD input non-isolated DIN rail loop-powered signal conditioner, RAIL-35-1 DIN rail and
DRSL-MOD-STOP module stop.
RTD input non-isolated DIN rail loop-powered signal conditioner
35 mm (1.4") DIN rail, 1 m (3.3') length
Module stop (screwed onto DIN rail to support and hold mounted devices)
-
2
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