I'll be concluding a run in an hour, so I will disassemble the box and take some measurements
Groth
The unit is a blood platelet incubator with a compressor running flat out. The evaporator is in a passage that is the back of the chamber, and above it is about 4' of coiled nichrome wire which is the heater used to moderate the cool air to the desired temp. A fan at the top maintains a constant forced circulation, top to bottom. As an environmental chamber its good to about a 400W load.
no, for me (my skills) its easier to figure out how to 'feed' their circuit, its control is excellent (I can hold ±0.05°C manually, a LabVIEW PID should improve that)
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