print(display.lightstate) always returns display.STATE_LCD_OFF after power-up
At the same time, the device screen is turned on.
This variable starts to work normally only after writing any value to it.
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Search found 40 matches
- June 13th, 2020, 8:54 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: print(display.lightstate) always returns display.STATE_LCD_OFF after power-up
- Replies: 0
- Views: 213
- May 17th, 2020, 8:57 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Different numbers of decimal places depending on the selected screen or the value of a number.
- Replies: 0
- Views: 243
Different numbers of decimal places depending on the selected screen or the value of a number.
Different numbers of decimal places depending on the selected screen or the value of a number.
- May 16th, 2020, 2:32 pm
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Temp reading (thermistor) breaks with 1.7.0e
- Replies: 4
- Views: 399
Re: Temp reading (thermistor) breaks with 1.7.0e
In the settings, select 7.5 digits instead of the default 3.5.
Kilo degrees is a feature of the firmware
Kilo degrees is a feature of the firmware

- April 29th, 2020, 4:51 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Uneven readings in Digitizing mode.
- Replies: 0
- Views: 293
Uneven readings in Digitizing mode.
Schedule deviation of time from the expected. Ideally, each sample should be in the time position t = i * T0. The graph shows the difference between the time given by the device and the ideal delta t = t - i * Т0
Graph for frequency 1 MHz; count=6 000 000
Graph for frequency 1 MHz; count=6 000 000
- April 13th, 2020, 5:00 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
Re: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
I described my understanding of how this works here: https://www.eevblog.com/forum/testgear/all-about-keithley-dmm7510-bugs-and-features-recipes-advice-notes/msg3013456/#msg3013456 The only thing that remains unclear is whether we can manually set the fractional aperture. It seems to me yes, but it ...
- April 12th, 2020, 3:34 pm
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
Re: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
They really should be different.
I understood ...
For a frequency of 400 kHz:
2 μs: we get an averaging of 2 samples with a period of 1 μs.
auto: we get an averaging of 2 samples with a period of 1.25 μs.
A little later I will try to describe how these numbers are calculated ...
I understood ...
For a frequency of 400 kHz:
2 μs: we get an averaging of 2 samples with a period of 1 μs.
auto: we get an averaging of 2 samples with a period of 1.25 μs.
A little later I will try to describe how these numbers are calculated ...
- April 12th, 2020, 11:55 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
- April 12th, 2020, 10:20 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
Re: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
400 kHz Aperture Auto(rounded down to the nearest integer).
Aperture = 2 μs?
YES? NO?
- April 12th, 2020, 7:21 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
Re: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
What is the aperture value in microseconds for the sampling frequency of 400 kHz and the value of the Auto parameter?
Write one number.
Write one number.
- April 11th, 2020, 12:10 pm
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
Re: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
I am learning to use the device. And for this I wanted to understand how the dmm.APERTURE_AUTO parameter works. For a frequency of 400 kHz (period of 2.5 μs) I can set 3 values for aperture parameter 1,2, and Auto. With a value of 1, the aperture is 1 μs. With a value of 2, the aperture is 2 μs. W...
- April 11th, 2020, 11:59 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Another forum where you can discuss the device.
- Replies: 2
- Views: 334
Re: Another forum where you can discuss the device.
Many thanks!
- April 9th, 2020, 6:46 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Another forum where you can discuss the device.
- Replies: 2
- Views: 334
Another forum where you can discuss the device.
This forum is almost dead. I invite you to a more lively place.
https://www.eevblog.com/forum/testgear/ ... ice-notes/
https://www.eevblog.com/forum/testgear/ ... ice-notes/
- April 9th, 2020, 6:36 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
- Replies: 10
- Views: 597
Parameter dmm.APERTURE_AUTO does not work as described in the documentation.
I was trying to figure out how to control the aperture for DigiV. To do this, I applied a rectangular signal with a frequency of 400 kHz from the generator (high level [2.5V] 90% of the time; low level [-2.5V] 10%). And he turned on the digitization with the same frequency of 400 kHz. (frequencies a...
- April 9th, 2020, 5:58 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Parameter dmm.digitize.inputimpedance does not work as described in the documentation in 100V range.
- Replies: 0
- Views: 240
Parameter dmm.digitize.inputimpedance does not work as described in the documentation in 100V range.
The digitize 100V range behaves very strangely. For example, I see a reaction from a change in input resistance. Short input noise: At 10 MΩ - 750 μV At Auto - 65 μV Input band: At 10 MΩ - 17.5 kHz At Auto - 7.5 kHz Is there any difference between 10 MΩ and Auto? If you select a range of 1000V there...
- November 29th, 2019, 2:21 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Pauses when recording a large buffer in Digi V mode
- Replies: 0
- Views: 353
Pauses when recording a large buffer in Digi V mode
New firmware 1.7.0. Trying to write a large contiguous buffer (8 000 000 samples) at a time: Settings: Digi V + [Freq=1MHz] + [Aperture=1mks] + [count = 8,000,000] img1129_091159.png When time-critical processes are not implemented on the hardware, but are given to programmers, it’s a disaster :( Wh...
- August 12th, 2019, 4:21 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: DigiV noise
- Replies: 0
- Views: 860
DigiV noise
See -:
- May 20th, 2019, 6:25 am
- Forum: DMM7510 Graphical Sampling DMM
- Topic: Strange readings when measuring current.
- Replies: 4
- Views: 6058
Re: Strange readings when measuring current.
For calibration comparisons if you do not own a proper manufactured short plug, any comparisons using DIY toys they are not considered as valid. But you can not be blamed when TEK it self, does not offer pricing and product information for their own 4X short plug, there is no photograph of it anywh...
- May 1st, 2019, 3:24 pm
- Forum: DMM7510 Graphical Sampling DMM
- Topic: The problem of changing the size of the buffer.
- Replies: 2
- Views: 3239
Re: The problem of changing the size of the buffer.
The maximum size that can be obtained after the appearance of the bug is only 7997000.
- May 1st, 2019, 3:03 pm
- Forum: DMM7510 Graphical Sampling DMM
- Topic: The problem of changing the size of the buffer.
- Replies: 2
- Views: 3239
Re: The problem of changing the size of the buffer.
UPD: To repeat the bug for the newly turned-on device, you need to repeat the script twice. But between operations you need to disconnect from the device and reconnect. The red arrow indicates the location of the reconnection.
- May 1st, 2019, 1:57 pm
- Forum: DMM7510 Graphical Sampling DMM
- Topic: The problem of changing the size of the buffer.
- Replies: 2
- Views: 3239