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Post by Lake Shore Jeff M on Jan 4, 2023 11:28:00 GMT -5
Yes, the XCX-1050-BO-1.4L sensor can be interfaced with the Model 218 monitor. However, your room temperature reading of 10 ohms sounds to be low.
You will need to use the Curve Handler application to load the curve for your sensor into the monitor into the curve location for the Input you are connecting the sensor to. Input 1 uses location 21 up to Input 8 which uses location 28.
The sensor connection requires a 4-wire connection as seen in section 3.3.2.5 of the Model 218 User Manual. The lead assignment to the 25-pin connector is shown in Figure 3 of the manual.
If you tell me what the serial number is for the sensor you have I can tell you what resistance to expect at room temperature.
I have attached our RTD sensor Troubleshooting Guide so you can verify the sensor is wired correctly. You can send the results to support@lakeshore.com once you have all of the readings in place.
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Post by Lake Shore Jeff M on Nov 15, 2022 10:55:45 GMT -5
The simple answer is no unless you have a supply that provides 5V with more than 400mA capability. The other requirement is that the positive connection is the center pin of the barrel connector with the negative connection on the outer connection.
You can purchase a new 109-132 power supply by contacting Quantum Design S.A.R.L, the Lake Shore representative for France who can assist you with the order.
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Post by Lake Shore Jeff M on Nov 15, 2022 8:11:12 GMT -5
Hello Maclean, I have asked two of my sensor experts to look at what you are reporting and let me know their thoughts. As soon as I hear from them, I will enter another response.
In regards to the correct curve to use, you are using the one for this application. In addition, your understanding of the +/- 10mK accuracy at 50mK is also correct.
One thing that we have seen in the past is that the sensor in the Bluefors DL has a filter installed that blocks induction of a RF signal that can cause self-heating. Our sensor does not include this filter so if you are in an environment that has potential RF induction, that can be what is causing the higher readings.
Check back later to see if my sensor experts have any other suggestions.
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Post by Lake Shore Jeff M on Nov 8, 2022 7:52:26 GMT -5
Hello Toni,
Yes, the Model 336 does not support the AOUT? command. The ANALOG command is used to configure the Analog Output and the MOUT command is how you set the output percentage. When using this to control the output, it is recommended that you have the Output configured for Open Loop operation so that the output value is not affected by the PID Control
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Post by Lake Shore Jeff M on Nov 2, 2022 8:33:04 GMT -5
We do not offer any Matlab drivers so you would have o create the application yourself. The commands that are supported by the Teslameter can be found in Chapter 4 of the Model F71 user manual. If you have questions about a command, let us know and we can provide an answer.
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Post by Lake Shore Jeff M on Oct 31, 2022 11:52:13 GMT -5
It looks like the Kovar lead is what broke and I don't think there is enough of the lead remaining to make a connection. You can see some of that lead under the heat shrink of the solder sleeve that was used to attach the lead extensions.
You could try to solder a 36 Gauge copper wire to the pad next to the existing lead that was welded using a 60/40 Sn/Pb solder. You could then attach the Phosphor-Bronze leads to that wire, however, it will limit the sensor to a high temperature just above 400K as the solder will melt at that point.
I could not guarantee that we could complete the repair without having the sensor returned.
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Post by Lake Shore Jeff M on Oct 31, 2022 10:27:05 GMT -5
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Post by Lake Shore Jeff M on Oct 28, 2022 8:37:37 GMT -5
In the Model 331, the heater protection circuit looks at the heater resistance and if it determines that the heater resistance it sees is greater than 350 ohms, it considers it to be an open circuit.
What resistance do you measure across the prongs of the dual banana plug that connects to the 331. Make the resistance measurement looking toward the heater with the plug disconnected from the 331.
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Post by Lake Shore Jeff M on Oct 28, 2022 6:44:13 GMT -5
The pictures you attached do not help as it only shows wires and i do not know anything about the Bruker System.
Once again you need to ask Bruker what sensor is installed and what connector on the system is it connected to with the specific pin assignments.
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Post by Lake Shore Jeff M on Oct 26, 2022 6:14:57 GMT -5
Matteo,
I do not know what sensor is in your system so I cannot make a recommendation. Can you tell me how the Input of the Model 331 is configured. I would need to know the Sensor type and what curve you have selected to begin helping you.
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Post by Lake Shore Jeff M on Oct 14, 2022 12:19:43 GMT -5
That is correct, when you use a scanner, the channel is read and readings are stored in a data register. When you query the channel temperature or sensor value, the information in the register is what is reported. The register is not updated again until the reading sequence connects that channel to the 372 to be read again. Look at section 4.6.1.6.1 Reading Sequence in the Model 372 User Manual for more details on the sequence.
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Post by Lake Shore Jeff M on Oct 12, 2022 6:43:31 GMT -5
Hello Austin, the Interpolation Method is automatically selected based on the curve assigned to the Input so I have a couple of questions:
1. Is the Rox sensor from Lake Shore or from another supplier? a) if it is from Lake Shore, what is the serial number of the sensor.
2. If it is not from Lake Shore, how do you have the curve file formatted? a) Standard Rox (non-Curvature) sensor curves require the sensor curve point units (format) be the Base 10 Log Ohm of the Resistance versus Temperature in Kelvin. i) This is the format selection log ohm/K where the cubic spline format uses the Ohms/K format (see section 5.6.1 in the 372-user manual). ii) You cannot enter Cubic Spline curves via the front panel.
Let me know the curve details and we can proceed further. If you have a non-Lake shore curve, please send it to me at support@lakeshore.com
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Post by Lake Shore Jeff M on Aug 17, 2022 11:02:03 GMT -5
Andreas, I apologize for the delayed response as our system did not notify the support department that you had submitted this issue.
The Model 336 firmware most likely does not have a bug as it can operate a heater at 100% power output for days at a time without failing. However, there is a difference in how the heater protection circuit operated in the Model 340 verses the Model 336. In the Model 336, the protection circuit is looking at the resistance of the heater and if the resistance exceeds 500 ohms, it will shut down with the heater short error. On the low end, it is 5 ohms or less it should shut down with the Heater Short error.
What I recommend you do is turn on the heater diagnostic page by holding the display setup button in for about 5 seconds. When you hear the beep, release the button and the diagnostic screen will appear. Run the heater while monitoring the screen and see what heater resistance is displayed. If the resistance is incereasing and eventually gets to 500 ohms, that will cause the controller to shut off.
Let me know what you see especially when the shut down occurs
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Post by Lake Shore Jeff M on Aug 16, 2022 7:44:26 GMT -5
I have been discussing this with my engineering team and they are asking for more information regarding this question.
They would like to know the following information
What are the readings on the Model 372 What is the cable type and length that you are using
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Post by Lake Shore Jeff M on Apr 14, 2022 10:55:27 GMT -5
Most likely, the JAVA version was updated with the windows update. There is an issue running Chart Recorder on later versions of JAVA so you have to use version 1.8.0 - build 321 or lower in order to run Chart Recorder.
To verify the version of JAVA, type About JAVA in the search window. If you have a version higher 1.8.0, You will need to downgrade the version which you can obtain from Oracle.
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