Thermistor Sensor
WT1
Patent No. 5523982
Sensing solution for temperature control and abnormality monitoring/backup functions


Sensing part: stainless steel
Wire: cross-linked fluororubber
Features
- Patent No.5523982, US 9,322,718
- Sensing solution for temperature control and abnormality monitoring/backup functions
- Has two glass-encapsulated thermistor elements of similar specifications
- A slight difference in response between the two thermistor elements
| Applications | Water heaters (outlet water) |
|---|---|
| Operating temperature | 0 to +120℃ (except connector) |
| Thermal time constant | τ ≤ 1.2 sec |
| Response time to 90% | Approx. 2.5 sec. (in stirred water) |
| Dissipation constant | δ ≒ 4.5mW/℃ (in stirred water) With two thermistor elements energized |
| Withstand voltage | 750VAC for 1 sec. |
| Insulation resistance | ≥100MΩ at 500VDC |
| Resistance | R50 = 3.485kΩ Other options available |
| B constant | B0/100 = 3450K Other options available |
* Values in the above table are for reference only.
* Unless otherwise stated, the thermal time constant and the dissipation constant are measured in still air.







