fluke 110 sumone pressed the calibration button

[mentholflash]

hi all
hope sumone can help i have a fluke 110 that was working fine no isues but my 12 year old brother inlaw pressed the calibration button (never played with a multimeter before) now it only reads ohms at 0.2 no dc or ac
was hoping i could factory reset or even a way to complete the calibration steps dont seem too hard seems to be only 6.000v needed
please can anyone help
cheers in advance

[MosherIV]

Hi

Welcome to the forum.

How long have you had the meter? Are you the original owner?
If less than 1 year, covered under warranty.

I am not sure if Fulke cover the 110 series with lifetime warrenty. If so, just ask Fluke. Do not tell them that the calibration button has been pressed. Just play dumb and sya that the meter is not working properly.

[mentholflash]

thanks for the reply only trouble is it happened 5 years ago just before our move to australia only just found it again just thought there maybe an easy fix
thanks again

[lowimpedance]

 So he was able to find the calibration seal underneath the meter and poke a probe into it and hold to enable the cal. mode !.
Do you see any display messages ie Cal. and Err ?, or any other message as per the manual.
 Otherwise it does seem that 6V RMS (at two easy frequencies) and 6V DC ,plus 600 and 6K should be all you need and shouldn't be to hard as you say. Do you have other gear ?.

[Fungus]

So he was able to find the calibration seal underneath the meter and poke a probe into it and hold to enable the cal. mode !

It's easy when you're 12.

Do you see any display messages ie Cal. and Err ?, or any other message as per the manual.
 Otherwise it does seem that 6V RMS (at two easy frequencies) and 6V DC ,plus 600 and 6K should be all you need and shouldn't be to hard as you say. Do you have other gear ?.

If it's only the Ohms range then another decent multimeter and a (preferably multi-turn) 10K potentiometer are all you need to get it back.

(and a copy of the service manual, with instructions...)

[mentholflash]

hi all
thanks for the replys
no error messages displayed just looks like it should but does nothing when leads attached to 240v ac or 9 v dc
and the child is a bit of a genius gets all top grades at school and is now on his way to being an architect he said he thougt pressing the button would just calibrate itself
so it does seem as thou it need just 6 volts to calibrate it but what about the 900.0hz how do i generate this
thanks again for the replys
cheers

[mentholflash]

i do have another fluke 73 its a bit big and bulky but can be used to check inputs and i have a variable dc power source can you point me in the right direction for other needed things
thanks
ps the meter didnt have its yellow jacket on wasnt too hard to find the calibration sticker and at least he got to see me change colour when he told me what he had done

[coromonadalix]

a small thread here : https://www.eevblog.com/forum/testgear/fluke-100-plus-no-means-to-calibrate/

or here   calibration start at page 12

https://www.manualslib.com/manual/691386/Fluke-110.html?page=13#manual

[mentholflash]

hi coromonadalix
thanks for the reply but its the generation f the values needed to calibrate that i need help with
C-01        6.000 V        900.0 Hz
C-02        6.000 V        60hz
C-03        6.000 V        DC
C-04        600 e
C-05        6.000 ke
i am asuming that i need a 6v power supply https://www.ebay.com.au/itm/Multi-Voltage-Power-Adapter-3v-4-5v-5v-6v-9v-12v-Power-Supply-w-USB-Port-AU/292515626336?hash=item441b4a3d60%3Ag%3APMYAAOSwXoxab9j5&LH_PrefLoc=1&_sop=15&_nkw=6v+power+supply+au&rt=nc
but this doesent advertise a hz output
i am asuming using other electrical part will help generate the values but dont know what parts
Please Help!!!!!!!!
thanks again for all replies
cheers
p.s.  parts list would be great i have a small breadboad for parts incorporation

[MosherIV]

thanks for the reply but its the generation f the values needed to calibrate that i need help with
C-01        6.000 V        900.0 Hz
C-02        6.000 V        60hz
C-03        6.000 V        DC
C-04        600 e
C-05        6.000 ke
i am asuming that i need a 6v power supply https://www.ebay.com.au/itm/Multi-Voltage-Power-Adapter-3v-4-5v-5v-6v-9v-12v-Power-Supply-w-USB-Port-AU/292515626336?hash=item441b4a3d60%3Ag%3APMYAAOSwXoxab9j5&LH_PrefLoc=1&_sop=15&_nkw=6v+power+supply+au&rt=nc
but this doesent advertise a hz output
i am asuming using other electrical part will help generate the values but dont know what parts

Stay away from crappy wall warts (your link)

I think you said you had another DMM and a variable PSU - you can use that to generate the 6V DC

Do you have a signal/function generator?
You just need to set it to output a sine wave with 6V rms (just use your other meter to check this, DMM does not need to be true RMS becuase it is a sine wave).
Set the 2 freq and check the voltage again with the other DMM

600V and 6KV - you are going to have problems with.
6KV  - This should blow the input of the DMM 

[Fungus]

i am asuming that i need a 6v power supply

Definitely NOT. The chances of a 6V power supply measuring 6.000V are zero.

Get a 9V battery and use a multi-turn 10K potentiometer to get 6V from it for your multimeter.

(batteries have a much more stable output than a cheap power supply)

PS: Shouldn't this be the 12-year old's problem?

[mentholflash]

hi all
thanks for  the replies

just trying to clarify
 i think?
C-01        6.000 V        900.0 Hz
C-02        6.000 V        60hz
C-03        6.000 V        DC
C-04        600 e           Ohms
C-05        6.000 ke      KOhms

these are the values i need to generate
i have a variable psu like the ones used in cnc machines  240v to 0-48v can be used to power leds
i have  a 12v laptop psu
or as Fungus sudgested a 9v battery and 12v lithium one from tools
and would this do the job https://www.ebay.com.au/itm/Black-Precision-WXD3-13-2W-Multi-Turn-Wirewound-Linear-Potentiometers-10K-OHM/323030752651?epid=504518425&hash=item4b36221d8b%3Ag%3AuJ0AAOSwVlVaG-Z6&LH_PrefLoc=1&_sop=15&_nkw=multi-turn+10K+potentiometer+&_sacat=0&_from=R40&rt=nc&LH_TitleDesc=0%7C0
i have a breadboard some ressistors varied 

how do generate values when needed at a precise value
maybe https://www.ebay.com.au/itm/50W-6KJ-6Kohm-Srecw-Tap-Mounted-Green-Aluminum-Wire-Wound-Housed-Resistor/331656080409?epid=1638802510&hash=item4d383e2c19%3Ag%3AhFEAAOSwpFlaSgL6&_sacat=0&_nkw=6+kohm&_from=R40&rt=nc&LH_TitleDesc=0%7C0
and
https://www.ebay.com.au/itm/Resistor-600-Ohm-10-Watt-Wirewound-Cement/263852621843?hash=item3d6ed78013%3Ag%3ALo0AAOSwxj5XQFWA&_sacat=0&_nkw=600+ohm&_from=R40&rt=nc&_trksid=m570.l1313&_oac=1&LH_TitleDesc=0

think i remember bieng told if i use 2 of above ressistors and 12v supply it will deliver 6v@600ohms would this be right?

hopeing sumone may take pitty and help me to produce values

thanks

[Fungus]

think i remember bieng told if i use 2 of above ressistors and 12v supply it will deliver 6v@600ohms would this be right?

In theory, yes, but in practice those resistors can vary by 5% (read the small print).

Same for the "12V" supply.

[mentholflash]

hi Fungus
thanks for the reply
what about the pot would that work
and any chance you could sudjest a ressistor and psu tha would do the job and/or circuit diagram i would probably be able to figure out the rest using google
cheers

[Fungus]

hi Fungus
thanks for the reply
what about the pot would that work

It's a bit industrial but, whatever. It's a pot.

[coromonadalix]

I'm gonna be rough a little, why don't you do a proper calibration at an service center   i know it cost $$$  but you'll be sure it will be done right

Sometimes the calibration need to be done with voltage and a given / asked frequency for compensation purposes ... not doing it right may causes some errors / drifts

Do you value this meter, or you try simply to make it work ?

[Fungus]

I'm gonna be rough a little..

I'm going to join in:

Given the sort of basic questions you're asking at the moment, I'm guessing it's not going to work out for you on your own - especially on the AC ranges (I'm not sure even I could do those without a proper signal generator).

Best bet is to find somebody local with proper gear to help you or send it to a service center.

[rsjsouza]

A real calibration would be the best alternative here. However, depending on where you live, you can have a new one (from eBay US) for mere US$62.00 + shipping. I don't think any cal service will run for less than that.

[siggi]

I'm gonna be rough a little..

I'm going to join in:

Given the sort of basic questions you're asking at the moment, I'm guessing it's not going to work out for you on your own - especially on the AC ranges (I'm not sure even I could do those without a proper signal generator).

Best bet is to find somebody local with proper gear to help you or send it to a service center.

Doesn't sound like there's much harm in trying. Struggling and failing are a good way to learnin' .

[Fungus]

Doesn't sound like there's much harm in trying. Struggling and failing are a good way to learnin' .

I guess the AC ranges could be done with a copy of Audacity to generate a sine wave at the right frequency and then pass it through an audio amplifier (into, say, a 16 Ohm power resistor) to get a 9V wave.

Now re-use the DC potentiometer setup to get exactly 6V RMS from that. 

[mentholflash]

hi all
thanks for all the replies
so i have a broken multimeter and little to no money (unemployed) which is the only reason i have the time to look at such things as an old broken multimeter
if you are saying this cant be done then i am defeated at the first hurdle and will have to wait till such a time i can afford professional calibration
only reason i thought i could do this myself is that the inputs seemed quite reachable being only 6v
i am happy to try to fix it and learn a little in the process as at the end of it all i will still have a multimeter that needs calibrating
but if there was a way to do it i will have saved and have a working hand held dmm that is still a fluke meter
and i live in remote western australia The Great Southern
i would like to be able to do it but if you are saying it is out of a laymans reach i can understand that and will just have to lump it and pick another project
thanks all