Hey, I'm in the market for a simpson 260-6XLM meter. Unfortunately, I found one I wanted, but pictures reveal the needle just below infinity (also slightly below zero). In all the pictures I received from the seller, none convince me otherwise that the meter will need to be calibrated physically.
Anybody know how big of a job this is? I'm guessing this should be left to the pros?
Thanks for any feedback!
Mike
Chris, thanks. I think I will stay way from it. While the ohms can be adjusted, all of the other functions would be off.
Cheers.
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I just read this in the simpson owners manual:
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4.3 Adjust Pointer for Zero With the Instrument in the operating position, check the pointer for zero indication at the left end of the scale when there is no input. If pointer is off zero, adjust the screw located in the meter cover below the center of the dial. Use a small screwdriver to turn the screw slowly clockwise or counterclockwise until the pointer rests freely over the zero mark at the left end of the scale. This procedure will avoid disturbances to the zero setting by subsequent changes in temperature, humidity, vibration and other environmental conditions. """Maybe I have nothing to worry about since I can set the left-scale to zero?
Thanks.
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Hi, Mike. Simpsons have the capability for limited zero adjustment. I kind of wish the picture had shown "dead-on" zero. If the seller had a picture with it close but not on, it might mean that the adjustment won't go all the way to zero, which might mean the meter movement has been damaged.
The pictuire with the meter at full scale deflection (infinity) was probably to show that the ohms works. No problem there.
I would have to assume the seller wants to put his meter in its best light. If the picture shows the meter zero off, I'd have to assume that's because it won't zero. Probable meter movement damage. Don't buy it.
Chris
I have a Simpson 260 series 8, and even the photo in the manual shows the needle below infinity, but it's super easy to adjust with the screw below the meter face.
If you can, just ask the person selling it if the meter zero adjustment works. It probably does. This is an awesome meter. I've had mine for around 5 years, and never had a single problem with it. We use it pretty much every day even with a Fluke 123 Scope Meter sitting close by.
-- -Bruce http://www.rentron.com
I've got a 260, and have repaired them occasionally for years. Sometimes if the movement slams against the end stop, it damages the movement. The person who took the picture may or may not have been aware of the black screw, but you have to assume they were. In that case, that's the best it can do, and probably isn't worth the chance. The meter movement is one of the more expensive replacement parts.
There's something wrong with the meter as shown in the display picture. That's enough to stop me by itself. At best, instruments on ebay are chancy, especially from sellers without a history.
Chris
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