RdF Corporation
R-21 // INDUSTRIAL RTDs
_ _
_ _
Overview of RdF Temperature Sensor Applications
The Entire RdF Product Catalog, Online, and with Printer-Friendly Versions of Each Data Sheet
Informative Articles with RdF Temperature Sensor Application Information
_
All about RdF Corporation; History, Reps & Distributors, Location
Coming Soon!
Coming Soon!
_
 
Overview Performance Specs Ordering Specs   
Industrial Platinum RTD Series 21
   
_ _
       
_ Type 21 A Straight Probe Assembly _ _
Model #:
_ 21A
_ 21B
_ 21C
_ 21D
_ 21H
       
 

Type 21 A – Straight Probe Assemblies
Features: 1/4" diameter 316 SS sheath; operating range –320° to 900°F;
Teflon® insulated lead wires; single or dual elements; RdF Reference or
IEC/DIN R vs. T characteristics, and 2, 3 or 4 wire element configurations.
_ _
       
_ Type 21B Rigid Probe Assembly _ _
Model #:
_ 21A
_ 21B
_ 21C
_ 21D
_ 21H
       

Type 21 B – Rigid Probe Assemblies with Hex Fittings
Features: 1/4" diameter, 316 SS sheath and 1/2 NPT threaded fitting for connection
head assembly; operating range –320°F to 900°F; Teflon® insulated lead wires;
single or dual elements; RdF Reference or IEC/DIN R vs. T characteristics,
and 2, 3 or 4 wire element configurations.

 
_ _
    _  
_ Type 21C Rigid Probe Assembly Hermetically Sealed Connector _ _
Model #:
_ 21A
_ 21B
_ 21C
_ 21D
_ 21H
       

Type 21 C – Rigid Probe Assemblies with Hermetically Sealed Connector
Features: 1/4" diameter 316 SS sheath with hermetically sealed 4-pin connector
on 1/2 NPT mount; operating range –320°F to 900°F single or dual elements;
RdF Reference or IEC/DIN R vs. T characteristics, and 2, 3 or 4 wire configurations.

*P/N 53105 (Mating Connector) must be ordered separately

 
_ _
    _  
_ Type 21D Spring Loaded Probe Assembly with Hex Fitting _ _
Model #:
_ 21A
_ 21B
_ 21C
_ 21D
_ 21H
       

Type 21 D – Spring Loaded Probe Assemblies with Hex Fitting
Features: 1/4" diameter 316 SS sheath; operating range –320°F to 900°F
with universal hardware for spring-loading; single or dual elements;
RdF Reference or IEC/DIN R vs T characteristics, and 2, 3 or 4 wire
element configurations.

Styles A & B Head Shown. Thermowell not included—order separately;
see data sheet T-WELLS
 
_ _
    _  
_ Type 21H Hermetically Sealed Assembly _ _
Model #:
_   21A
_   21B
_   21C
_   21D
_   21H
     
       
 

Type 21 H – Hermetically Sealed Assemblies
Features: 1/4" dia. SS sheath; operating range –320°F to 900°F;
Teflon® insulated 3–conductor cable; RdF Reference or IEC/DIN
R vs. T characteristics. Integral hermetic seal. Single element only.
   
_
  products proudly manufactured in the USA _ Specialists in Temperature Measurement
1 : 2 : 3 _
 
    ©Copyright RdF Corporation. All rights reserved.