January 2010 I ordered the oscilloscope from Kjell & Company I their shop in Täby in Sweden. I was in the shop several times during the year until September and asked for delivery. They told me that is was problems with the deliveries and promised to phone me but they never did. In November I contacted the main office by Kjell & Co and got the oscilloscope the 2th December.
When I tested the oscilloscope there were problems in the software and the probes could not be compensated. I couldn´t get any support from Kjell & Co so I returned it.
Then I contacted your Swedish agent Hedlings in Stockholm and bought a new oscilloscope from them directly.
The new oscilloscope:
The new oscilloscope came with new probes which could be compensated.
Now I have tried to make measurements on model flight motors, but I cannot use it because the trigging function is not working correctly. To be sure that I have the latest software I have downloaded version 9.01.
I made complaints by Anders Hedling and he had contact with you. He got the answer that it shouldn´t be any problems with the oscilloscope. He asked me to get in direct contact with you, if I still have problems.
This is the problem:
If I use Time/div=2 ms or more the trigging function is OK. But if I set Time/div=O,5 ms or less and push “RUN” it is only trigging once and stops with the text “Waiting for trigger”. This can be tested with an extern signal or by using the built in function generator. The fault trigging stop becomes obvious if one is switching between the different functions (sinus, square and triangle).
Conclusions:
I hope you will make the same tests as I have done and see if you have the same problem on your PCSGU250. Then please tell me what we can do to get it working properly.
If the problem cannot be solved shortly, I cannot use the oscilloscope and will return it to Hedlings in Stockholm.
I think you are using Windows Vista or Windows 7.
If this is the case, then the problem may be solved by using the WinUSB driver.
You’ll find the driver on the installation CD or you can download the latest driver from this page: velleman.eu/distributor/supp … U250&type=
[quote]Now I have installed the Windows 7 Driver version 1.0.0.6
The trigging problem is remaining unsolved.[/quote]It seems that you still have the old driver version 1.0.0.6 installed.
This can cause the problem in Windows Vista and Windows 7.
If you downloaded and installed latest WinUSB driver, the version should be 1.0.0.2.
The WinUSB driver on the installation CD is version 1.0.0.0
(You may use either of these WinUSB drivers.)
If you have problems to update the driver, you may now select “Uninstall” in the device manager to remove the driver v1.0.0.6.
You will get a pop up window with “Delete driver software for this device” check box, select that option to uninstall this driver completely.
When uninstalled, unplug and plug the PCSGU250 USB cable.
Install the downloaded WinUSB driver v1.0.0.2. (or v1.0.0.0 from CD).
Here you can download the instructions how to install the driver: box.com/s/vh9olqyx3idhhxn8ujwm
Thank you for the fast answer even if it is saturday.
Now I and my son, who is more expert in handling software problems, have tried to download the newest wersion of the driver and we always get the version 1.0.0.6 and we cannot find the version 1.0.0.2, which you have said that we shall use. Where can we find the version 1.0.0.2? We find it odd that the lower version number is the newest version. The trigging problem is remaining.
Is it really true that another driver will solve the problem? Please answer my old question: “Have you made the same test as I did with your own PCSGU250?”
[quote]Is it really true that another driver will solve the problem?[/quote]Yes, most probably using the WinUSB driver will solve the problem.
[quote]Please answer my old question: “Have you made the same test as I did with your own PCSGU250?”[/quote] Yes, works without any problems in my HP Pavilion dv9000 PC under Windows Vista and Windows 7 using the driver version 1.0.0.6.
In some Windows Vista and Windows 7 PCs the oscilloscope may not work properly if the driver version 1.0.0.6 is installed.
… as seen in these threads: viewtopic.php?f=10&t=5663 viewtopic.php?f=10&t=3048&start=30
[quote]We find it odd that the lower version number is the newest version.[/quote]The vendor of the MCHPUSB driver version 1.0.0.6 is Microchip.
The vendor of the WinUSB driver versions 1.0.0.0 (on the CD) and 1.0.0.2 on the Velleman downloads site is Microsoft.
[quote]Now I and my son, who is more expert in handling software problems, have tried to download the newest wersion of the driver and we always get the version 1.0.0.6 and we cannot find the version 1.0.0.2, which you have said that we shall use. Where can we find the version 1.0.0.2?[/quote]You can download the WinUSB driver version 1.0.0.2 from the Velleman downloads page.
Here is the link to the downloads page: velleman.eu/distributor/supp … U250&type=
Please see the “Drivers” section at the bottom of the page.
Download the package: “Drivers for Windows Vista and Windows 7. (Can also be used for Windows XP)”
When this package is downloaded, you have to extract it to a folder.
When extracted you have to update the driver.
Here you can download the instructions how to update the driver: box.net/shared/66aei7j31s
2nd option:
If you don’t feel confident downloading and extracting the package, you can install the driver v1.0.0.0 located on the installation CD.
The driver is in the CD folder: PCSGU250Driver_WinUSB
Follow the instructions and navigate to this CD folder.
3rd option:
If you have problems to update the driver, you may select “Uninstall” in the device manager to remove the driver v1.0.0.6.
You will get a pop up window with “Delete the driver software for this device” check box, select this option to uninstall the driver completely.
When uninstalled, unplug and plug the PCSGU250 USB cable.
Install the driver version 1.0.0.0 from CD.
Here you can download the instructions how to install the driver: box.com/s/vh9olqyx3idhhxn8ujwm
Here are screenshots to show how to uninstall the driver 1.0.0.6:
I have installd the driver 1.0.0.2 and the trigging seems to be OK. Even the autoset function is OK, which it was not before. Thank you for helping - even on a sunday. Tomorrow I will start measuring on my model flight motors and I hope it will be working. I have been waiting for one year for this, so I am very expectant.
