Thermometrics Type JW/JC of Waterproof Clip-On Pipe and Surface Sensors are NTC or PTC type chip thermistors on a ceramic/metal shoe assembly sealed in a polymer housing and provided with flexible twin cable connections. The housing is fitted with a spring metal clip for pipe attachment. Suitable for use in conditions of high condensation and occasional immersion in water. Typical applications include gas boiler control, domestic water systems, air conditioners, radiator inlet-outlet, electric showers and vending machines.
Applications
- Gas boiler control
- Domestic water systems
- Air conditioners
- Radiator inlet-oulet
- Electric showers
- Vending machines
Features
- Suitable for use in conditions of high condensation and occasional immersion in water
- Low temperature gradient (<1.8°F at 140°F (<1°C at 60°C))
- Sensing element electrically isolated from shoe (isolation >20M Ω at 500V)
- Range of clips for pipe diameters
- 0.51 in to 1.18 in (13 mm to 30 mm)
- Self-adjusts to irregular pipes
- Offers cost benefits over traditional immersion probes
- Fast response times - 1.5s typical for JC and 3.0s typical for JW
- Type JW (water resistant version) meets IP46 standard (with connector tabs encapsulated)
- Type JC meets IP44 standard
Specifications
| Minimum operating temperature | 32°F (0°C) |
| Maximum temperature | 212°F (100°C) (sensor) 185°F (85°C) (housing) |
| Dissipation factor | ≥2mW/K (mounted on copper pipe at 77°F (25°C)) |
| Isolation voltage | 500 VDC |
| Clip force | <50N for mounting / de-mounting on pipe 5N will not cause rotation on pipe |
| Shoe material | Plated brass |
| Body material | Nylon |
| Pack quantity & MOQ | 200 pcs |
| Options | Other resistance-temperature characteristics Other wire lengths Special pipe sizes |
| Sensor Type | Response Time (seconds) |
| NTC | ≤4 (to 90% voltage change) |
| PTC | ≤4 to TNF 41°F (5°C) (sensor applied to pipe at TNF 73.4°F (23°C)) |
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