quizzical1
Mechanical
- Jul 6, 2004
- 180
Hi All,
Can someone help me with this?
We need to design a 120VAC circuit to power a 50 deg C PTC disc heater and have two power indicating lamps - one that shows power is ON and the other to show if the heater has failed. I realize power on could just be a neon lamp in parallel across the heater, but how can I indicate when the heater has failed?
Thanks,
Glenn
Can someone help me with this?
We need to design a 120VAC circuit to power a 50 deg C PTC disc heater and have two power indicating lamps - one that shows power is ON and the other to show if the heater has failed. I realize power on could just be a neon lamp in parallel across the heater, but how can I indicate when the heater has failed?
Thanks,
Glenn