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RTDs with Welded Fittings |
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Designed for Direct Immersion applications where a male fitting is required for mounting, for use in tanks, stacks, pressure vessels and similar applications. Sensors are supplied with a threaded hex fitting which is welded to the sheath of the RTD providing a pressure seal for process applications where pressure and flow are moderate.  | Model 201 - Refer to Model 101 if mounting fitting is not required. - Refer to 300 Series if spring loading is required for thermowell applications. | Model 203 Reduced Tip/Fast Response - Refer to Model 103 if mounting fitting is not required. |
 Specifications:
| 1. Model | Base Model/Series Number | 2. A. Accuracy:
B. TCR:
C. Ice Point Resistance: D. Response Time : | Standard Class B (no code) High Class A (code H) Special Customer Specified (code S) * Industry Standard is DIN Curve (code 01B), Platinum, 100 @ 0°C. Conforms to IEC 751.
Temperature Coefficient of Resistance is the temperature vs. resistance characteristics of a given metal (Pt, Cu & Ni) used in manufacturing the RTD. Determines the curve of the RTD.
Ro - Resistance at 0°C (32°F)
Dependent on sheath diameter, the smaller the diameter - the faster the response. See RTD General Specs. | | 3. Construction: | Code A - 316SS tube and wire construction, thin film element (.00385055) TCR, teflon insulated lead wire. Code C - 316SS tube and wire construction, wire wound element, fiberglass insulated lead wire. Code B & D - Inconel sheathed MgO construction, wire wound element, fiberglass insulated lead wire.
| | 4. Lead Wires: |  | | 5. Sheath Diameter: | .250” (1/4”) is industry standard. Code C/N for reduced tip design.
| | 6. Sheath Length: | Length from bottom of fitting to tip of sensor.
| | 7. Welded Fitting: | Specify fitting size and style that suits application.
| | 8. Lead Wire Length: | Length of wire beyond the sheath.
| | 9. Lead Wire Protection: | Stainless Steel Overbraid or Stainless Steel Armor. Order length at 3-6” shorter than lead wire length. Example: Z024-X020
| | 10.Water resistant: | Increases moisture protection for humid environments. |

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