Welcome! Here are the website rules, as well as some tips for using this forum.
steam room temperature sensor
I have a steam room with a 25 year old Amerec Steam generator. It still works well, but I have a concern about the temperature sensor.
The manufacturer claims to have no data on these old units, but states that the temperature sensor will fail over time and accumulated heat. They said it was "some sort of homemade thermistor". It is clearly encapsulated in an aluminum block - I assume to dampen temperature changes. They said that they have no data on it and it cannot be replaced. The connection to the control system is a simple 2 wire RCA plug.
Is there some service that chan characterize this device for me, so I could find/create a replacement when it ultimately does fail? I've measure the resistance at 60 and 100 deg F, and they were 29.1 and 28.3 k respectively.
I'm also thinking of hooking a potentiometer up to the control in place of the sensor and trying to elucidate the control curve that way. Does this make sense, or is there something I'm missing here?
Many thanks in advance for any help!