Fast Response Immersion RTDs

Sensing elements Specification and order options: Immersion probes

RTD sensing element Code Platinum (0.00392 TCR)100 Ω ±0.5% at 0°C PA Platinum (0.00385 TCR)100 Ω ±0.1% at 0°C(Meets EN60751, Class B) PD Platinum (0.00385 TCR)100 Ω ±0.5% at 0°C PE Platinum (0.00385 TCR)1000 Ω ±0.1% at 0°C(N/A for model S602) PF Copper (0.00427 TCR)10 Ω ±0.2% at 25°C CA Nickel (0.00672 TCR)120 Ω ±0.5% at 0°C NA

Overview

PROBES You can mount these probes directly in fluid streams for accu-rate, reliable sensing. Time constant is just 2 seconds, compared to 10 seconds for an ordinary stainless probe or up to 50 seconds for a thermowell. The result is more accurate monitoring of dynamic processes.•Stainless steel probes for use to 260°C (500°F) •Pressure rating 1500 psi (103 bar) •Quick reaction to changing fluid and gas temperatures •NPT (U.S.) or metric threads These probes have welded fittings to mount directly into fluid vessels. Add a connection head for termination of extension leads. S623 Model number: S623:
1 ¼
2 - 14 NPT thread [2]S628: ISO 228/1-G
1 ¼
2 process thread(
1 ¼
2 - 14 NPT on leads end) PF Sensing element from table 60 Case length:

Specifications

Specify in 0.1" increments (Ex: 60 = 6.0 inches) Temperature range: -269 to 260°C (-452 to 500°F). Y Number of leads: Y = 2 leadsZ = 3 leads X = 4 leads (PD only) Case material: S623, S628: 316 stainless steel. S634, S639: 304/305 stainless steel. Case length: Minimum case length: 1.5" (38.1 mm). Maximum case length: 48" (1220 mm), longer on special order. 72 Lead length in inches Time constant: Typical value in moving water:S623, S628: 4 seconds. S634, S639: 2 seconds. A Covering over leadwires: Pressure rating: 1500 psi (103 bar). T = PTFE onlyS = Stainless steel braid A = Stainless steel armor Leads: 2, 3, or 4 leadwires, AWG 22, stranded copper with PTFEinsulation, stainless steel braid, or stainless steel armor. For 2-lead RTDs add 0.03 Ω per foot of combined case and leadlength to element tolerance. S623PF60Y72A = Sample part number Insulation resistance: 1000 megohms minimum at 500 VDC,leads to case.

Plug type sensors

Save space and get accurate readings with this compact, easy-to-install probe. Vibration: Withstands 10 to 2000 Hz at 20 G’s minimum perMIL-STD-202, Method 204, Test Condition D. S634 Model number: S634:
1 ¼
2 - 14 NPT threadS639: ISO 228/1-G Shock: Withstands 100 G’s minimum sine wave shock of 8 milliseconds duration.
1 ¼
2 thread NA Sensing element from table Y Number of leads: Y = 2 leadsZ = 3 leads X = 4 leads (PD only) 24 Lead length in inches T Covering over leadwires: T = PTFE onlyS = Stainless steel braid S634NAY24T = Sample part number
Specifications subject to change

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