RTD-200 RTD Temperature Sensor
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Specifications:
- Sensor: 316 stainless steel
- Dimensions: 3 in (7.6 mm) length, 1/4 in (6 mm)
diameter - Accuracy Range: Resistance
- Extension Wires:
- Wire size (each of 3)
- Wire dielectric strength: 600 volts
- Length: 6 ft (1.8 m)
- Outer jacket: Fluoropolymer
- Maximum exposure temperature: Sensor fitting: 1/2-in NPT
with sealing washer and nut
Product Usage Instructions:
Installation:
The RTD-200 can be terminated directly at the controller using
the supplied 1/2 in NPT fitting. In this configuration, no
additional extension wire is required.
RTD-200 Wiring:
RTD wired directly to controller: (Distance from sensor
bulb to controller must be less than 4 ft)
Note: RTD should be placed in a typical ambient
location.
RTD wired with splice box
Note: RTD should be placed in a typical ambient
location.
Electrical Schematic of RTD:
Connect the wires as shown:
- Field Wiring White – White (Common return)
- Red – Red (Source)
- Red – Red (Compensate)
FAQ:
Q: Can I use substitute parts with the RTD-200?
A: No, do not use substitute parts or vinyl electrical tape to
make connections as it can affect component approvals and
performance.
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RTD-200
RTD Temperature Sensor for Ambient Sensing Installation Instructions
APPROVALS
Approvals associated with control device, however not to be used in Div. 1 areas.
DESCRIPTION
The Raychem RTD-200 is a three-wire platinum RTD (resistancetemperature-detector) typically used with electronic control systems that require accurate ambient temperature sensing. The RTD-200 comes with a 1/2″ NPT fitting that installs to the appropriate conduit box. This allows mounting of the RTD in a typical ambient location. This also allows for splicing of RTD extension wire back to the controller.
Tools required · None
Additional materials required · None
KIT CONTENTS
Item Qty
A
1
Description RTD temperature sensor with 1/2-in NPT fitting
SPECIFICATIONS
Sensor
Housing
316 stainless steel
Dimensions
3 in (7.6 mm) length 1/4 in (6 mm) diameter
Accuracy
±0.3°F (0.2°C)
Range
100°F to 300°F (73°C to 149°C)
Resistance
100 ohms +/ .25 ohm at 0°C X=0.00385 ohms/ohm/°C
Extension Wires
Wire size (each of 3)
22 AWG Note: The length of RTD extension wires is determined by the wire gauge used. To reduce the likelihood that electrical noise will affect temperature measurement, keep RTD extension wires as short as possible. Use shielded instrument cable such as Raychem MONI-RTD-WIRE (22 AWG, PVC insulation, 30°F to 140°F, 20°C to 60°C) or Belden 83553 (22 AWG, FEP insulation, 95°F to 395°F, 70°C to 200°C).
Wire dielectric strength 600 volts
Length
6 ft (1.8 m)
Outer jacket
Fluoropolymer
Maximum exposure temperature
300°F (149°C)
Sensor fitting
1/2-in NPT with sealing washer and nut
WARNING:
This component is an electrical device. It must be installed correctly to ensure proper operation and to prevent shock or fire. Read these important warnings and carefully follow all the installation instructions. Component approvals and performance are based on the use of specified parts only. Do not use substitute parts or vinyl electrical tape to make connections.
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INSTALLATION
The RTD-200 can be terminated directly at the controller using the supplied 1/2 in NPT fitting. In this configuration, no additional extension wire is required.
RTD-200 WIRING
RTD wired directly to controller (Distance from sensor bulb to controller must be less than 4 ft)
Note: RTD should be placed in a typical ambient location.
Electronic controller
Terminate at appropriate terminal block
1/2 in NPT fitting
1/2 in Conduit
4 ft or less
RTD wired with splice box Note: RTD should be placed in a typical ambient location.
1/2 in NPT fitting
Electronic controller
Terminate at appropriate terminal block
RTD extension wire 1/2 in Conduit Splice box
(provided by others)
Electrical Schematic of RTD Connect the wires as shown.
Field Wiring White White (Common return)
Red Red (Source)
Red Red (Compensate)
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Tel +1 713 868 4800 info@chemelex.com
Europe, Middle East, Africa, India
Tel +32 16 213 511 Fax +32 16 213 604 info@chemelex.com
Asia Pacific
Tel +86 21 2412 1688 infoAPAC@chemelex.com
©2025 Chemelex. All Chemelex marks and logos are owned or licensed by Chemelex Europe GmbH or its affiliates. All other trademarks are the property of their respective owners. Chemelex reserves the right to change specifications without notice.
RAYCHEM-IM-H56998-RTD200-EN-2504
PN P000000095
chemelex.com
Documents / Resources
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Raychem RTD-200 RTD Temperature Sensor [pdf] Installation Guide RTD-200, RTD-200 RTD Temperature Sensor, RTD-200, RTD Temperature Sensor, Temperature Sensor, Sensor |