| Overview These assemblies include a connection head for terminating RTD leads to external wiring. The fast-response thermowell assembly lets you remove the RTD probe without breaking into process lines. Cases and thermowells, made of polished 316 stainless steel, are free of cracks and crevices that might shelter bacteria. Specifications Sensing element: Platinum RTD, 100 Q ±0.1% at 0°C, TCR = 0.00385 Q/Q/°C (Meets EN60751, Class B). Temperature range: -100 to 200°C (-148 to 392°F). Material: Probe: 316 stainless steel. Spring-loaded holder on thermowell version: 300 series stainless steel. Finish: Standard: #4 finish per 3-A standard 74-02,32 microinches max. Pharmaceutical (optional): Polished to mirror finish and passivated. 10 microinches typical. Pressure rating: 500 psi (34.5 bar). Leadwires: Polyimide insulated leads, 4" (102 mm) long. Time constant: Probe assembly: 2 seconds. Thermowell assembly: 4 seconds. Self-heating: Typical value in moving water. Probe assembly: 50 mW/°C Thermowell assembly: 25 mW/°C. Insulation resistance: Single element probes: 1000 megohms min. at 500 VDC, leads to case. Dual element probes: 100 megohms min. at 100 VDC, between elements and leads to case. |