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RTDs

Product Overview

Proheat's general purpose RTD temperature sensor assemblies find use in a multitude of process and HVAC applications. Assemblies are offered with a choice of element materials, values and accuracies, a choice of element leadwire configurations, and a choice of sheath materials and diameters.

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More Information

​Many assemblies are supplied in drilled or flanged wells, and all assemblies can be supplied with Proheat's low cost integral head mounted RTD transmitter.

RTDs vs. Thermocouples vs. Thermistors  ►

RTD Elements

​Element Options: 2, 3, 4 wire per element construction, single and duplex elements, wire wound or film type elements.

Materials

  • ​Platinum
  • Copper
  • Nickel
  • Nickel-Iron

​Values

  • ​Platinum (100, 200, 500, 1000 ohm)
  • Copper (10 ohm)
  • Nickel (120 ohm)
  • Nickel-Iron (604 ohm) 

​Accuracies

​Platinum (±0.12%, ±0.1%, ±0.03%, ±0.01% at 0°C) All Others (from ±0.2% to ±0.5%)

​RTD Sheaths

Sheath Options:
Compression fittings, welded bushings, flanges, bayonet fittings, sheath bends and Teflon¹® coating ¹ Trade name of E.I. DuPont.

Sheath Materials: 
316 Stainless Steel Standard (other materials available).
​
Sheath Diameters:
1/8", 3/16", 1/4", 3/8" OD's and other fractional or metric sizes.

​Complete RTD Accessories

Assembly Options:
High or low temperature construction, standard or miniature size plugs and jacks, choice of 8 connecting head materials, leadwire with several choices of insulation, leads with metal overbraid or in flexible armor.

Leadwire Termination Options:
Plugs, jacks, spade lugs, and special connectors.

Sheath Termination Configurations:
RTD plugs and jacks, Standard screw cover and explosion-proof heads, Miniature heads, leadwires, Special construction.

RTD Temperature Transmitter

Proheat's RTD transmitters are designed to produce a linerized (4 to 20) mA dc output current signal, which is directly proportional to the temperature of the RTD temperature sensing element. A variety of models are available for RTD sensor inputs of different element values and temperature coefficients. Transmitters are available as part of a temperature sensor assembly or as stand alone units.

Features:
​Platinum RTD Inputs, Linearized 4 - 20 mAdc Output, Calibration Accuracy of ± 0.1%, Loop Powered (13 to 40 Vdc), Dedicated Ranges (Degrees F or C), Burnout Protection (Up or Downscale), Small Size

Standard Designs

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