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Environmental Chamber: Difference between revisions

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* Switches at top - mains, internal lamp, fridge unit
* Switches at top - mains, internal lamp, fridge unit
* Temperature controller - set temperature demand and show temperature.
* Temperature controller - set temperature demand and show temperature.
* Temperature dial - does NOT set temperatire, It sets the overtemperature trip level at which it will automatically cut out. Set it just above the maximum you will require.
* Temperature dial - does NOT set temperature, It sets the over-temperature trip level at which it will automatically cut out. Set it just above the maximum you will require.
* D-type connector- Don't know. Possibly RS232 to controller.
* D-type connector- Don't know. Possibly RS232 to controller.


Heating operation is straightforward. Just set a temperature higher than ambient and don't switch the fridge on.
Heating operation is straightforward. Just set a temperature higher than ambient and don't switch the fridge on.


Cooling operation is less obvious - I think the cooler itself runs to a very coarse setting and the heater is used for fine control. In particular, I think you have to set an auxilary control output on the temperature controller to enable the cooler. I have had this working so it's not impossible but may require a bit of fiddling.
Cooling operation is less obvious - I think the cooler itself runs to a very coarse setting and the heater is used for fine control. In particular, I think you have to set an auxiliary control output on the temperature controller to enable the cooler. I have had this working so it's not impossible but may require a bit of fiddling.


==Careful==
==Careful==
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