Radio Shack Measuring Tools & Sensors - Popular Questions, Answers, Tips & Manuals
Can I replace the sensor for a Radio Shack 63-1090?
I presume by sensor you mean the remote sensor not the main unit which also has sensors? When you buy the 1090 you get one external/remote sensor which is also labeled 1090. If you buy extra sensors they are 1092's. Another new 1092 sensor should work with your 1090 it does on mine. You can have up to 3 remotes just set the channel on them. Getting one is the problem. If your talking of stripping the box down to replace the sensor , well I am sure more than the sensor would have a fault!
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Radio Shack thermo hygro sensor model 63-1090
I ran into this problem and note that in the manual is states for "best results" the sensor should be powered up before the station. I had the station running and it wouldn't lock even after several hours. When I powered it down and brought it back up, it saw the sensor just fine...
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Need to know exact frequencies
When on channel one,hook up an oscilloscope to the channel output circuit on the output terminals.First read channel 1,then channel 2,then channel 3.You can leave the oscilloscope hooked up the whole time.Start on the highest available scale,then work your way down scale by scale until it is accurately readable.Then you will need to find the input to the counting circuit,most likely from a thermistor.You will need to reconfigure the counting circuit to send a signal from what the thermistor is reading for the temperature to 600Hz instead of what the current counting circuit is set at.You can achieve that by connecting the oscilloscope to the output side of the IC for the counting circuit with one lead on the output,one lead on the input,and determine what it is set at currently,then redesign it to pulse at 600Hz input which is 10 second intervals.Greg
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