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Post by Lake Shore Jeff M on Jun 15, 2018 8:39:16 GMT -5
Hello Amany,
The Lake Shore Curve Handler version 9 application has many dependencies and requires that the GPIB Driver is properly configured to work with NET Framework 4.0 & 4.5.1.C. Regretfully, it is sometimes impossible to get the GPIB Interface operational with the application so I suggest you download and install the Legacy version of the Curve Handler application that can be found at:
www.lakeshore.com/Documents/InstallCurveHandler.zip
The attached document has some information on the configuration of the GPIB Driver operation with NET Framework if you want to give that a try.
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Post by Lake Shore Jeff M on Jun 6, 2018 12:00:00 GMT -5
Hello Philae,
I apologize for the delayed response as we did not receive a notification when you posted this question.
First, it is not possible to bend a metal stem probe as the wiring inside the stem is encased in epoxy and does not include any slack, therefore, if you attempt to bend the probe, most likely, the wiring will break.
Designing a probe that is not a standard length we offer or possibly making one with a 90 degree bend would be considered a custom probe and you would need to contact one of our sales representatives to start that process. The extra cost and delivery time would depend on the final design so I cannot give you an estimate at this time.
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Post by Lake Shore Jeff M on May 22, 2018 10:07:22 GMT -5
The information you are requesting regarding how Lake Shore implements our PID Control Algorithm is considered to be proprietary and not available to the public. If you wish to pursue this request, you will need to contact your Lake Shore Sales Representative so that they can work with you to establish a legal Non Disclosure agreement before we will provide the requested information
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Post by Lake Shore Jeff M on May 15, 2018 9:03:33 GMT -5
Hello M. Romero,
We have not tested wiring more than one sensor to a single current source, however, we do believe it should work. To do the actual wiring, the current leads for the three sensors will need to be wired in series instead of parallel as you indicated. This will ensure that 100mA flows through each sensor where in parallel, the current would be divided between the three sensors.
Let me know if you need additional information regarding the wiring connections.
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Post by Lake Shore Jeff M on May 15, 2018 7:48:00 GMT -5
Jianmei,
The Heater 1 Open error is saying that the Model 335 has detected that the resistance of the heater exceeds approximately 500 ohms. When you start the heater, do you see the temperature of the control sensor start to increase and then the error appears? If yes, what may be happening is that as the system starts to warm up, one of the wires going to the heater is going open which causes the error. If you do not see the temperature start to go up before seeing the error it may indicate an issue in the Model 335 heater circuit.
The first thing to do is to disconnect the heater from the rear of the Model 335 and measure the resistance across the prongs of the dual banana plug looking back at the heater. If it reads greater than 500 ohms, you will need to investigate that circuit. If it reads normal values which are normally around 25 to 50 ohms, reconnect it and try to do an experiment. Monitor the temperature and see if the open error appears at he same temperature each time. If it does, then the open is due to an issue in the system you are using and you will need to contact that manufacturer for troubleshooting procedures. If not, let me know the details of the failure and we can do additional Model 335 troubleshooting.
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Post by Lake Shore Jeff M on May 8, 2018 9:44:20 GMT -5
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Post by Lake Shore Jeff M on May 8, 2018 9:21:40 GMT -5
Hello Ishan,
At this time, Lake Shore does not support the Model 335 Controller on the Keithley B4200 SCS System. Although you are using the Model 336 Drivers, there are enough differences that you may encounter other issues. At this time, we have no plans to offer Model 335 drivers for the B4200 system.
The reason you have the No Output message showing is that you are displaying information for channel A and you have not associated Output 2 with channel A. In order to see Output information using the Channel A display mode, you need to assign Channel A to Output 2 since you have channel B assigned to Output 1.
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Post by Lake Shore Jeff M on Mar 21, 2018 6:48:42 GMT -5
Another option would be to contact Bruker and ask them for the wiring connections.
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Post by Lake Shore Jeff M on Mar 20, 2018 6:56:18 GMT -5
Matteo,
Were closer, however, looking at the pictures you provided, it looks like the broken cable connects to a cable that was provided by Lake Shore which has the 6-pin connectors that connect to the Model 331 on one end and is provided with bare wires on the other end. I see that someone has added connectors to the bare wire end so all I can provide is information on the color code pin out of the 6-pin connector that attaches to the Model 331 input connector. The Pin Out can be found in Figure 7-1 in the Model 331 User Manual. You will need to determine what pins in the connector that was added is connected to the pins of the 6-pin connector. Then using the pin out I provided in my previous post, you can determine what pins the attaching cable should be connected to.
If you are correct and the broken cable attaches a Thermocouple wire to the Model 331, I assume you had those wires connected to the V+ & V- pins, however, that is not an approved Thermocouple sensor connection.
Attachments:
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Post by Lake Shore Jeff M on Mar 16, 2018 7:32:42 GMT -5
Hello Jeff,
Assuming you are referring to a Cernox sensor mounted in an SD package, Providing you prepared the surface and applied the Varnish as described in our Installation Instructions (www.lakeshore.com/Documents/F017-00-00.pdf) it is most likely an issue with the expiration date of the varnish.
Although Apiezon grease may work, it is better suited when the sensor is mounted in a recess or hole.
I believe the most reliable way would be to use our "CO" spring clamp with a thin layer of Apiezon N grease between the sensor and sample. The concern with an alligator clip would be the tension of the clip could possibly crush the sensor.
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Post by Lake Shore Jeff M on Mar 15, 2018 12:05:41 GMT -5
Hello Matteo,
The picture you provided does not have enough information to allow me to tell you how to reconnect the broken wires to the connector. IS the connector end shown in the picture, the end that plugs into the Model 331 or does it connect to the system containing the sensor? At this time, all I can provide is the pin out for the Input connector on the Model 331. If you can find out what the designation of the broken leads are, you can use the following to determine how to make the connections:
Pin 1, I-, negative Current Pin 2, V-, Negative Voltage Pin 3, Shield Pin 4, V+, Positive Voltage Pin 5, I+, Positive Current. Pin 6, Shield
What you need to determine is what do the broken leads connect to in your system
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Post by Lake Shore Jeff M on Mar 8, 2018 7:08:35 GMT -5
The easiest way to determine if the cable is a Straight or Null Modem cable is to see how pins 2 & 3 are wired. A straight serial cable wires pin 2 to pin 2 and 3 to 3 where a Null Modem cable wires pins 2 to 3 and 3 to 2. If the 9-pin connector of the adapter is a Male connector, you will need the Null Modem cable.
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Post by Lake Shore Jeff M on Mar 7, 2018 15:58:38 GMT -5
Most USB to RS232 serial adapters require that you use a Null Modem cable between the adapter and the Model 218. Which adapter are you using?
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Post by Lake Shore Jeff M on Mar 6, 2018 9:54:41 GMT -5
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Post by Lake Shore Jeff M on Feb 27, 2018 7:52:06 GMT -5
The "SD" package is our most rugged package and is hermetically sealed allowing immersion into liquid cryogen like LN2. When properly mounted , the sensor will accurately report the temperature of the bulk superconductor . Sensor mounting suggestions can be found in the Cernox™ Installation Instructions at:
www.lakeshore.com/Documents/F017-00-00.pdf
Let me know if you have additional questions.
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