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Sets, Parts and Service Information Offered (private sellers only, exact price required, no swaps) You may announce components or sets for sale or offered free here. Private collectors only - no traders. You must include an exact price. No swaps.

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Old 24th Nov 2023, 7:30 pm   #1
ScottBouch
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Default Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

For measuring the optical power at the end of fibre optic cables.

In excellent condition, in original packaging. Very clean and tidy.

I replaced the battery clip as an old battery had been left inside and the terminals had corroded. Not a trace of corrosion on the casing though.

With new clip fitted, I tested it just against ambient light and the figures on the screen seemed to respond in a sensible manner toward brighter / dimmer light, this was by no means a calibration, but it appears to be doing sensible things.

Included:
FO power meter
A selection of FO fittings
Lens cleaner
Optical blower Brush
Q-Tips
Lens tissue
Instructions
Original box with RS components label

Asking £20 including postage, by PayPal. No hat, please PM for details.

Thanks, Scott
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Old 24th Nov 2023, 7:31 pm   #2
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

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Old 25th Nov 2023, 5:09 pm   #3
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

Dropping the asking price to £15.00 including posage.
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Old 27th Nov 2023, 8:27 pm   #4
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

Ok, you drive a hard bargain... £12.00?
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Old 27th Nov 2023, 8:35 pm   #5
paulsherwin
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

It might help if you could explain what exactly this instrument could be use for.
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Old 27th Nov 2023, 8:49 pm   #6
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

In a previous life I used the OTP520 and OLS510 Light Source a lot over many years to test and diagnose fibre optic systems.

David
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Old 28th Nov 2023, 11:30 pm   #7
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

Would it measure the power of a little laser pointer ?
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Old 28th Nov 2023, 11:42 pm   #8
ScottBouch
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

I suppose it depends on the wavelength of the pointer. The PDF shared by David above gives its optimal wavelength of 850nm, but can be used between 400 and 1000 nm, and converted using a chart for powers at other wavelengths in that range.

Cheers, Scott
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Old 28th Nov 2023, 11:43 pm   #9
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

I saw sensible looking measurements by pointing it toward an LED lamp, but being white light will contain a wide range of wavelengths.
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Old 30th Nov 2023, 8:48 am   #10
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

£10 posted? Its a nice instrument, found an early 1980's copyright date on the PCB.
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Old 30th Nov 2023, 1:00 pm   #11
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Default Re: Vintage MEGGER OTP520 Fibre Optic Power Meter Plus Accessories

Now sold, thanks.
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