Products > Test Equipment
RIGOL DS1102Z-E
PatrickB:
Hello,
So I'm not the only one having this problem. I contacted Rigol, 1 year ago (October 2021) and they told me that it is a software problem...
I received my scope in September 2021 with firmware version 00.06.02.
The brightness problem with the 5ns timebase already existed with this version.
Updating with firmware V00.06.03 did not solve the problem.
Version 00.06.02 dates from October 2019, information written in the Release Notes.
So the problem exists since this version and maybe even since the conception of this scope.
At least 3 years after V00.06.02, Rigol still hasn't solved the problem and some people on the forum (maybe working at Rigol company) say it's a software problem!!! Easy to keep users waiting forever.
But why the defect has still not been resolved for so long:
First possibility: Rigol is a small company with few incompetent developers and they don't have time to solve a 3 years old bug?
Second possibility: the problem is hardware with board version 0.0.1. It cannot be solved without a hardware upgrade!
Regards
Piton:
Yes, there are two problems in this model: the shift of the rays when the second channel is turned on / off, which I already mentioned here, and this one with a brightness of 5 ns. Rigol has not responded in any way yet.
PatrickB:
Hi Piton,
I tried again to reproduce the first problem you mention.
When I validate or invalidate the second channel, the trace does not move. I do not hear the contacts of a relay sticking or unsticking
Maybe I misunderstood the problem.
When you see this problem, what is the value in volt/cm of the channels, is there a signal on the 2 channels?
I'm just trying to reproduce the problem on my scope with your settings.
Piton:
The problem is clearly visible at maximum vertical sensitivity (starting from 5mV/div.). When the second channel is turned on, both beams move upwards. To return the beams to "Zero", you need to switch both channels to the "Ground" mode and back, then both beams are combined into one "zero" line. Many people have this problem, maybe you are lucky.
Yes, and at the same time, a relay clicks on the second channel. There is one more point: when the second channel is turned off, the voltmeter readings are absent, and in the first channel, when it is turned off, they remain the same as they were before the turn off.
PatrickB:
With the sensitivity of both channels set to 2mV/div and without connected probes, when I enable channel 2, the trace of both channels move up at 0.4mV (1/5 of div), no more.
By disable channel 1, the trace of 2 remains at 0.4mV but by disable 2, the trace of 1 goes down to ground.
I had never seen this defect, I don't use my scope with such low voltage signals.
For my use of this scope, the biggest problem is the loss of luminosity with the time base at 5ns. If I get any information about this bug, I'll let you know.
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