je
New Member
Posts: 2
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Post by je on Aug 19, 2020 6:30:32 GMT -5
Dear all, we have a LS336 without 3060 input option and a Type J Thermocouple.
- Can we input the Thermocouple to the LS336, or or we absolutely need the 3060?
- The LS 336 manual does not state anything about the Type J Thermocouples, only about Type K, E and so on. Can type J still be used?
- We need a temperature range from 220K to 330K, precision requirements are not very high, approx. +/- 2K. Do you think we can achive that with a Type J?
Thanks a lot in advance!
Cheers, Jan
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Post by Lake Shore Jeff M on Aug 19, 2020 9:38:35 GMT -5
You do need the 3060 Thermocouple option card to read a Thermocouple sensor on the Model 336 controller.
You can use a Type J Thermocouple with the 3060 option card, however, the input has a +/-50mV limit and the Type J thermocouple indicates that it hat a range of –8.095 to +69.553mV so the input will produce a S. Over Error once the temperature reaches a point that produces a voltage that exceeds +50mV.
In addition, if you want to display a temperature on the Model 336you will need to load a calibration curve into the Model 336 for the type J sensor
Since we do not manufacture or sell Thermocouple sensors, I cannot speak to the accuracy you will see with this type of sensor.
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