Put it to any one of the settings in bottom left corner.
If you have continuity it'll be a 1.

no you are mistaken. its definately 808.

should i change my name to bob?

thought it meant corsa BOB :boggle:

its 808 actually:P

ok cheers bob

or put it onto 20v dc then one onto a 12v positive and the other onto the point you wish to earth the amp. if you get 12v+ then that will be fine.

quote:

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Originally posted by Tom J
i was putting it on a positive cable then onto a point i want to earth my amp too. it was showing 1 constantly and it would flash a random number if i took it off a piece of metal.

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think i've confused you now

i get 001 if i touch them together on that setting that looks like a car horn

i was putting it on a positive cable then onto a point i want to earth my amp too. it was showing 1 constantly and it would flash a random number if i took it off a piece of metal.

touch the probes together. what reading do you get?

whatever that reading is thats what you need to look for when testing the earth. if the number is higher than the number shown when testing the earth then you have poor continuity.

hope that makes sense:o

most modern meters do beep tho!

the diode tester is what you want to use to test continuity. some meters dont beep, just give a reading. reading should go to 1 if there is continuity and if there is poor continuity will have a figure (usually 3 digits) in the display. For an earth you should get a 0 or 1 as a reading.

As 808 said - the diode tester, and it'll probably read 1.00 but this depends on your multimeter.
Switch it onto that settings and touch the two probes togther and see what it displays on the screen - that will be your answer!

Edit: how are you trying to check your earth? are you checking from chassis to earth or from a 12v supply to earth?

[Edited on 07-04-2006 by Jules]

i havent got a clue. i just need to check if my earth is any good, what setting do i need and what number do i look for :boggle:

Surelky the diode tester will only test for flow one way? i.e it weill beep one way and if you swap the probes around it won't be as it's be 'going against' the diode?
But then again my multimeter is proper old skool with a needle on a meter rather than a digital display - and beeping? That's for nancys!
:thumbs:

oh and it doesnt beep

mine hasnt got the little speaker thing, im on about the symbol above the 10ADC.

its the diode tester. the bit above where it says: 10ADC. turn the meter onto this and hold the test probes together. should get a 'beep' from the meters.

Looking at it I reckon it'll be the little speaker looking symbol to the right of the 200ohms (at the bottom) setting.
Should make a beep when it has continuity between the two probes.

Trying to check if my earth is dodgy, which setting do i need it on and what numbers do i look for?
i had it on the one which looks like a speaker and it showed 0 and if i connected it to positive and negative to something bare metal it would flash up a number? does that mean its a good earth

:boggle: