Temperature Sensor for a pressure cooker.

[tomadom]

I want to replace a temperature sensor for a 240v max 1100w pressure cooker / slow cooker but I'm confused about which one to get
I have found sensors but they ask for a specific temperature specification and whether the sensor is Normally Open or Normally Closed.

Can anyone advise which specs and type to get?


Thanks

 

[kellys_eye]

Given the type of equipment and potential for catastrophe I suggest you seek the manufacturers recommended replacement at whatever cost that may incur.

 

[tomadom]

It doesn't matter. If I can't fix it it'll end up in the bin.

 

[tomadom]

When I test the sensor with a continuity tester, it shows full continuity. So I assume this means Normally Closed going off the explanation I've seen on the web. Could it be stuck in this position?

"NC: When there is not a sensing object within sensing range, transistor output is ON."

 

[kellys_eye]

The heating element will probably be wired in series with that temperature sensor (normally closed contact) such that an event exceeding the temperature of the sensor will break the power to it. It's likely fitted as a preventative measure against boiling the pan dry.
The cooker temperature will otherwise be dependent on the weighted valve determining the internal pressure (water boiling at a lower temperature when under pressure).
The only reasonable way you'd ever see the sensor go open circuit is if you put the pan on with no water in it.

 

[tomadom]

The heating element will probably be wired in series with that temperature sensor (normally closed contact) such that an event exceeding the temperature of the sensor will break the power to it. It's likely fitted as a preventative measure against boiling the pan dry.
The cooker temperature will otherwise be dependent on the weighted valve determining the internal pressure (water boiling at a lower temperature when under pressure).
The only reasonable way you'd ever see the sensor go open circuit is if you put the pan on with no water in it.

That's probably what has happened. This was given to me broken.