What are the common problems in the use of a spectrophotometer?
Problems encountered when using a spectrophotometer
When using the 752 model spectrophotometer, the reading has been very unstable. What could be the reason?
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It could be unstable voltage
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I don't know, it keeps jumping around
shaojinghua added the following content on 2009-11-14 18:01
I don't know, it keeps jumping around
shaojinghua added the following content on 2009-11-14 18:47
I don't know, it keeps jumping around
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The reason may be that there is moisture inside or a component (seems to be a transistor) has broken!
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You can try cleaning the dust off the bulb and wiping it with white gloves to make the bulb more secure. I encountered this problem a few days ago.
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Okay, I won't do it today, I'll try tomorrow
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This model seems to be like this. My data also jumps. After taking it for repair, it still fluctuates, but generally between 0.000 and 0.0002. The repair person said it is normal.
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The desiccant should be replaced, right? Is the voltage stable?
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Reply to 7#weihua0608
But the range of fluctuation I get is very large, between 0.0000 and 0.0010
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Replace the transistor
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We have now bought one of this model and still haven't figured it out?
Does it have to be preheated for 20 minutes?
Thank you~
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There is a zero adjustment knob, the one on the left
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It could be unstable voltage
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I don't know, it keeps jumping around
shaojinghua added the following content on 2009-11-14 18:01
I don't know, it keeps jumping around
shaojinghua added the following content on 2009-11-14 18:47
I don't know, it keeps jumping around
--------------------------------------
The reason may be that there is moisture inside or a component (seems to be a transistor) has broken!
--------------------------------------
You can try cleaning the dust off the bulb and wiping it with white gloves to make the bulb more secure. I encountered this problem a few days ago.
--------------------------------------
Okay, I won't do it today, I'll try tomorrow
--------------------------------------
This model seems to be like this. My data also jumps. After taking it for repair, it still fluctuates, but generally between 0.000 and 0.0002. The repair person said it is normal.
--------------------------------------
The desiccant should be replaced, right? Is the voltage stable?
--------------------------------------
Reply to 7#weihua0608
But the range of fluctuation I get is very large, between 0.0000 and 0.0010
--------------------------------------
Replace the transistor
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When using the 752 model spectrophotometer, the reading has been very unstable. What could be the reason?How do you zero the 752,
shaojinghua posted on 2009-11-14 16:24
We have now bought one of this model and still haven't figured it out?
Does it have to be preheated for 20 minutes?
Thank you~
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There is a zero adjustment knob, the one on the left