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Post by Lake Shore Jeff M on Apr 15, 2024 11:11:46 GMT -5
Output 3 & 4 on the Model 336 provide a PID Controlled +/-10V output that can control any external device that accepts the +/-10V control signal. I do not have a recommendation as we do not sell anything that would work. I do know that many customers use power supplies made by Kepco Inc. so you may want to look at what they offer at www.kepcopower.com
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Post by Lake Shore Jeff M on Apr 12, 2024 6:25:32 GMT -5
The risk for damage to the sensor is high. The Cernox sensor is rated as a Human Body Model 2 which means it can be damaged by a discharge of 2000V to 4000V. There is no guaranteed way to protect the sensor, however, we have found that if you disconnect the 4-leads that connect to the sensor and tie them together without connecting them to ground, the sensor may survive.
As stated above, this is not a guarantee that the sensor will survive, The only guaranteed way is to physically remove the sensor until all welding is complete.
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Post by Lake Shore Jeff M on Apr 3, 2024 13:25:32 GMT -5
The Model 336 will need to be connected to the 4200 as the host for a GPIB connection. You will need to review the Model 4200 documentation to see how it is done or contact Keithley for help in configuring the 4200 to communicate with the Model 336 Controller.
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Post by Lake Shore Jeff M on Apr 3, 2024 12:58:31 GMT -5
The Model 335 requires a Line Feed Character as the termination of the input string. You have to Tell NIMAX to use this character. In the VISA Test Panel Click on the I/O Settings Tab: Check the Enable Termination Character box Set End Mode Reads as None Set End Mode for Writes as Termchar Select Termination Character Line Feed \n then Apply Changes
Click the View Attributes and Verify that the Enable Termination Character value is VI_TRUE
Select the Input/Output Icon and click the Query button.
If everything is correct you should see the Model 335 Identification information.
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Post by Lake Shore Jeff M on Mar 27, 2024 9:51:46 GMT -5
A typical Room Temperature voltage reading would be around 0.56V. 0.65 would be a temperature near 260K. Please send an email to support@lakeshore.com and I will send you our Diode Troubleshooting Guide so we can start diagnosing the situation.
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Post by Lake Shore Jeff M on Mar 20, 2024 11:24:44 GMT -5
I would like to know the serial number of your Model 335 and if the error appears every time you run the heater. To keep the serial number private, please send it to me via email to support@lakeshore.com
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Post by Lake Shore Jeff M on Mar 8, 2024 10:25:41 GMT -5
The Model 350 needs to be configured for a 10mV excitation to read MTCRTD resistance above 100K ohms. Were you using the 1mV excitation range when reading the sensor when you saw the incorrect value?
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Post by Lake Shore Jeff M on Mar 8, 2024 10:17:52 GMT -5
No, Lake Shore does not sell the type of sensor you are asking about.
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Post by Lake Shore Jeff M on Mar 7, 2024 7:04:55 GMT -5
It does not matter which Shield Pin you use to connect the cable shield to as all of them are tied to the same measurement ground in the scanner.
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Post by Lake Shore Jeff M on Feb 22, 2024 10:46:27 GMT -5
A DT-670 sensor does not automatically send and temperature information, therefore, I do not know of any way it can be connected to any PC without having additional components.
To use a DT-670 sensor, you need to source a 10µA current and then read the resulting voltage. Once you have the voltage, you can do a straight line interpolation between the adjacent curve points to calculate the temperature.
If you already have the sensor connected to a temperature monitor or controller, it may be possible to connect the Pi to an interface on the controller via the RS232 interface or Ethernet depending on the controller of monitor and the capabilities of your Raspberry pi.
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Post by Lake Shore Jeff M on Feb 16, 2024 7:16:51 GMT -5
What temperature is the sensor at when you see 12 ohms. 12 Ohms on the standard PT-100 sensor curve should result in a temperature of approximately 55K, therefore, if the Siemens s7300 RTD is configured to use the PT-100 sensor curve, it should be displaying about 55K.
Please send an email to support@lakeshore.com and I will send you our RTD Sensor Troubleshooting Guide
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Post by Lake Shore Jeff M on Feb 5, 2024 11:29:30 GMT -5
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Post by Lake Shore Jeff M on Feb 5, 2024 10:20:09 GMT -5
Without the serial number it is impossible for me to tell you what you need to order. If it is a diode sensor, there are several options as well as there are with the Cernox sensor.
Do you have the instrument that was being used to measure this sensor? If yes, how is the input configured for sensor type and curve assigned? If no, were out of luck to identify the model.
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Post by Lake Shore Jeff M on Feb 5, 2024 9:41:00 GMT -5
I believe the sensor could is an LR package, however, I cannot verify if it is a Cernox or Diode sensor as both are offered in the LR package. The LR package is an SD sensor packaged in a slightly more than half round cylinder as seen in your picture. If you have the sensor serial number, I can verify the sensor model.
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Post by Lake Shore Jeff M on Feb 2, 2024 9:02:34 GMT -5
Thanks for confirming it was the comma versus decimal point issue
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