RdF Corporation
R-218 // INDUSTRIAL RTDs
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Overview Performance Specs Ordering Specs  
Dimensional Drawing
Series 218 Drawing
Ordering Specifications
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   TYPE     1/8" diameter Platinum RTD Probes (316 stainless steel)
   218A    Straight Sheath
   218T    Straight Sheath with 1" long x 1/4" Diameter Transition

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   RTD RESISTANCE SPECIFICATION (ohms @ O°C)
   10     100   ±0.1Ω  Strain Free wire-wound 0.003924 Ω/Ω/°C (RdF Reference Grade)
   11     100   ±0.1Ω  Strain Free wire-wound 0.00385 Ω/Ω/°C (IEC/DIN)
   20     200   ±0.2Ω  Strain Free wire-wound 0.003924 Ω/Ω/°C (RdF Reference Grade)
   21     200   ±0.2Ω  Strain Free wire-wound 0.00385 Ω/Ω/°C (IEC/DIN)
   T01   100   ±0.12Ω Thin Film 0.00385 Ω/Ω/°C (IEC/DIN Grade B)
   T05   500   ±0.6Ω   Thin Film 0.00385 Ω/Ω/°C (IEC/DIN Grade B)
   T10   1000 ±1.2Ω   Thin Film 0.00385 Ω/Ω/°C (IEC/DIN Grade B)		 _
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    PROBE LENGTH
    Specify “L” in inches (3" minimum on wire-wound only; 1" on thin films)		 _
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      NUMBER OF LEADS
      A       single element, 2 wires any length
      B       single element, 3 wires 36" or under in length
      C       single element, 4 wires 36" or under in length (Not available on type “A”)
      X3     single element, 3 wire cable over 36" (on Type “A”, only for operation below 500°F)
      X4     single element 4 wire cable over 36" (Not available on Type “A”)		 _
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   LEAD LENGTH - Inches (6" standard) _
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218A
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10
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6
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A
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24
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- Typical write-up for 218A

 


  Adjustable Compression Fitting  
Adjustable Compression Fitting

   Part
   Number
 Process
Mounting
Material		 Sensor Sheath
Diameter
  51841-1 1/8 NPT Stainless Steel 0.125
  51841-2 1/4 NPT Stainless Steel 0.125
  51841-3 1/4 NPT Stainless Steel 0.25 (transition)
  51841-4 1/2 NPT Stainless Steel 0.25 (transition)

 
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