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avatar: FT-IR Sol
FT-IR Sol
1 posts
Replied to FT-IR Sol's post on October 4th, 2013

Good Day,

When i run the instrument system suitability test, the report shows the message: "return to endstop timed out, Fatal scan error" for Background, Abscissa Check, Throughput check, and Contamination check.

Pls, how do I go about the problem?

Thanks.

 

avatar: cprice
cprice
6 posts
Replied to FT-IR Sol's post on May 25th, 2020

Did you find an answer to this? I am having the same issue. Thanks.

avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 25th, 2020
This message will generally mean that there's an issue with the scan mechanism. It could mean that the laser has either failed, or may need adjusting. Close down the Spectrum software, then find the Monitor.exe program in the PerkinElmer/ Service or folder. Run this and check the laser energy value, which ideally should be around 1200.
avatar: cprice
cprice
6 posts
Replied to Berridit's post on May 25th, 2020

Thank you for your quick response!

The laser looks fine, it is reading ~1311.

The IR energy is giving me "ErrLow". There is no interferogram. The initialization check doesn't say there is anything wrong with the source, but I'm wondering if in fact the source is the problem?

 

Capri

avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 25th, 2020
So, it's possible that the IR detector is faulty. Are you ok opening up the instrument? Another possibility is that the PCB controlling the scan motor isn't working. This can be verified by opening the instrument from the front, switching on the instrument with the lid open and watching to see if the moving coil on the top of the interferometer is moving. Also, while the lid is up, at the back left corner you can see if the IR source is glowing.
avatar: cprice
cprice
6 posts
Replied to Berridit's post on May 25th, 2020

I don't have a problem opening the instrument, but I can't figure out how to defeat the interlock so that'll turn back on?

avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 25th, 2020
Sorry, with the lid up, if you put your hand over the back of the power supply on the right back corner, you will either see or feel a white interlock switch. Like an end of a pen. Pull this out or away from you.
avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 25th, 2020
Sorry, with the lid up, if you put your hand over the back of the power supply on the right back corner, you will either see or feel a white interlock switch. Like an end of a pen. Pull this out or away from you. If it's easier, I can give you my number so you can WhatsApp me?
avatar: cprice
cprice
6 posts
Replied to Berridit's post on May 25th, 2020

Sure, if that's easier. Thanks for your help! The source is glowing but the coil never moved. 

avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 25th, 2020
Ok, so if the coil isn't rotating, then the small PCB next to the laser and could may be faulty. When turned in the system will initialise the motors, then try to scan and align. If it's not moving, then I'm sure it's faulty. My number is +447908408854 if you need further assistance. I was the PE European service specialist for IR products for 14 years.
avatar: cprice
cprice
6 posts
Replied to Berridit's post on May 25th, 2020

Thanks very much for the help. I'll contact Perkin to see how much a replacement for that board would be. It doesn't visually look bad, but who knows. Right now I have to head out- COVID restrictions- only allowed in the lab for certain hours.

Thanks again!

avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 25th, 2020
No problem. I wonder whether PE will supply one as they have really clamped down on supplying service parts. I would be interested to find out if you don't mind letting me know. May I ask what part of the world you're in? I have a few of my own if you're stuck. Regards and stay safe Ian
avatar: cprice
cprice
6 posts
Replied to Berridit's post on May 25th, 2020

Oh, and I'm at University of Connecticut.

avatar: Berridit
Berridit
53 posts
Replied to FT-IR Sol's post on May 26th, 2020
Apologies, I meant to mention that you need to ask PE for the "Fringe Pre Amp" board. Ret