PMEL Forum

General => General Discussion => Topic started by: USMCPMEL on 05-02-2008 -- 10:58:27

Title: Please help. I need an adjustment procedure for a Amrel 39 multimeter.
Post by: USMCPMEL on 05-02-2008 -- 10:58:27
Someone please help me.
Title: Re: Please help. I need an adjustment procedure for a Amrel 39 multimeter.
Post by: Hawaii596 on 05-05-2008 -- 08:16:34
Wow!  That's a tough one.  I just spent a half hour researching and found basically nothing.  I went to the Amrel website and found no multimeters at all. Here are a few ideas (if it were me who had to do it):

- Is it possibly private labeled (i.e.: actually made by someone else)?  If so, maybe try to track down the real OEM for it.  That's a very intuitive pursuit.
- Is there a user you can query for some sort of manual to give you a good starting point?  Then use info found in the manual to help research.
- Is there possibly an Army T.B. type procedure for it with adjustments?
- Last Resort.... I've been known to open and reverse engineer the inside of a meter (experiment with the alignment pots inside to determine what they each do).  This is definitely a last resort and only for those not faint of metrological heart.

Don't know if the above is just a rehash or any help.  Hopefully its of some value.
Title: Re: Please help. I need an adjustment procedure for a Amrel 39 multimeter.
Post by: USMCPMEL on 07-16-2008 -- 14:44:47
I had to give up on that one but I have another one in front of me that is acting up too. So once again I ask does anyone have an alignment procedure for an Amrel 39 American Reliance multimeter?
Title: Re: Please help. I need an adjustment procedure for a Amrel 39 multimeter.
Post by: RedBones on 07-21-2008 -- 11:58:29
Give them a ring- 1-800-654-9838.

I'm with Hawaii- It's probably a rebadge of an Extech or BK Precision POS.
Title: Re: Please help. I need an adjustment procedure for a Amrel 39 multimeter.
Post by: USMCPMEL on 07-21-2008 -- 15:46:58
Thanks I actually did the tinker and check method and figured out what pot I needed. The first meter I messed up the dc millamps when I fixed the DC volts and on the second meter I got it right the first time. Of course when I was done I did a complete recalibration on both meters and it all checked out good. Thanks for the help.
Title: Re: Please help. I need an adjustment procedure for a Amrel 39 multimeter.
Post by: Hawaii596 on 07-22-2008 -- 15:38:10
That method is definitely scary; and takes a lot of instinct to know if or when you should even try it. 

One thing I try to do in such cases is once I figure it all out (which pot does what), draw a diagram of the meter with my reverse-engineered adjustment pots so when (not if) it comes back out of spec again, It'll go easier.