TNP #21 - Stanford Research SR630 16-Channel Thermocouple Monitor Teardown, Repair & Experiment
In this episode Shahriar takes a look at a Stanford Research SR630 16-Channel Thermocouple Monitor. This instrument provides accurate temperature readings multiplexed from 16 unique inputs. It also supports a wide range of thermocouple types. The instrument is purposely not powered on initially as it is prone to capacitor leakage on the main board. The capacitors have destroyed many of the crucial traces all of which have to be individually replaced with wires.
Repair is successful and the instrument is back to life! To test the unit, the temperature on both surfaces a Peltier cooler is measured. The thermoelectric pump is able to cool one side to below -5C while consuming 3.5W.
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