Author Topic: Multimeter Chauvin Arnoux model MAN'X 04B  (Read 521 times)

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Offline HungTopic starter

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Multimeter Chauvin Arnoux model MAN'X 04B
« on: December 24, 2024, 07:23:26 am »
I am looking for user manual this MAN'X 04B . Can anyone share this document ? I can not find button to adjust " zero " in mode Ohmeter . Thank and be grateful .
 

Offline coromonadalix

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #1 on: December 24, 2024, 02:23:01 pm »
since you have posted elsewhere too,   why don't you open the meter take some photos to show the inside,

could be some resemblance to other models in the MX series

if the meter is flat on the table  does the needle is  zeroed on the mark ?
 

Online cte

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #2 on: December 24, 2024, 09:32:29 pm »
This forum has some scanned manual images of a slighlty different model named MAN'X TOP.

http://www.tsf-radio.org/forum/forum.php?show=284964

It's in french, so you might have to use some translation service.

According to the circuit diagram, there might be an internal trimpot for the ohms range. On the photo, there is one in the lower right and another one in the upper left of the PCB, if that photo I found matches your version.

Out of curiosity: What kind of battery does it take? A23 battery? Or is it size N?
« Last Edit: December 24, 2024, 09:44:20 pm by cte »
⚡ To avoid electric shock, ensure that your instrument is correctly grounded.
 
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Offline coromonadalix

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #3 on: December 25, 2024, 12:14:18 am »
im native french     there is a warning about the fuse type, if its the wrong one,  the zeroing seems not possible or good ?

i would say  take measurements of the trimmers i see 4 ??,   and see witch one is related to the functions ?
« Last Edit: December 25, 2024, 12:17:49 am by coromonadalix »
 
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Offline HungTopic starter

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #4 on: December 25, 2024, 02:58:51 am »
since you have posted elsewhere too,   why don't you open the meter take some photos to show the inside,

could be some resemblance to other models in the MX series

if the meter is flat on the table  does the needle is  zeroed on the mark ?
 
The following users thanked this post: coromonadalix

Online cte

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #5 on: December 25, 2024, 08:52:12 am »
There are four trimpots, indeed.

But before fiddling with any trimpots, you should assure that the battery voltage is correct. It doesn't look right from the photo you have posted. What value does the needle show in lowest ohms range with the input leads shorted? Is it too low or too high?


The MAN'X TOP was probably operated by 9 volts, but I'm not sure if this applies for your model, too.
https://www.radiomuseum.org/r/cda_digital_analogique_multimeter_manx_top.html
« Last Edit: December 25, 2024, 08:56:50 am by cte »
⚡ To avoid electric shock, ensure that your instrument is correctly grounded.
 
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Online cte

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #6 on: December 25, 2024, 12:09:18 pm »
The MAN'X 04b is probably built more like the MAN'X 02S model (no digital display, no opamps) which uses a single 1.5V AA battery.

https://forums.futura-sciences.com/depannage/938120-depannage-multimetre-chauvin-arnoux.html

Now, looking again at the picture and the size of the battery holder (which looks like it was taken from the 02s model, but simply cut in half) I'd guess the MAN'X 04b needs an 1.5V N battery...
« Last Edit: December 25, 2024, 12:11:23 pm by cte »
⚡ To avoid electric shock, ensure that your instrument is correctly grounded.
 

Offline HungTopic starter

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Re: Multimeter Chauvin Arnoux model MAN'X 04B
« Reply #7 on: December 26, 2024, 02:50:13 am »
There are four trimpots, indeed.

But before fiddling with any trimpots, you should assure that the battery voltage is correct. It doesn't look right from the photo you have posted. What value does the needle show in lowest ohms range with the input leads shorted? Is it too low or too high?


The MAN'X TOP was probably operated by 9 volts, but I'm not sure if this applies for your model, too.
https://www.radiomuseum.org/r/cda_digital_analogique_multimeter_manx_top.html

Its original battery is 5.6 volt ( mercury battery ). I used 4 x 1.5v to replace . That means more 0.4 volt . Perhaps this difference make it more tolerance in range Ohm
 


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