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Posted by mm on October 31, 2006, 8:15 pm
>
>>
>>>
>>>>
>>>>>
>>>>>> I am trying to install a SunTouch spot warming mat. To check for
>>>>>> damage you need to test the resistance of the wires using a
>>>>>> digital ohm meter. Trouble is I have no idea what to set the meter
>>>>>> at. If the Reistance Range of the mat is 70-86 what setting would
>>>>>> I use on the meter? The meter is a Sperry DM-350A if that matters.
>>>>>>
>>>>>> Thanks in advance.
>>>>>
>>>>>200 OHM scale.
>>>>
>>>> Setting it to 200 on the OHM section always says 1__. no matter
>>>> which wire combination I touch the leads with.
>>>>
>>>> Here's a pic of the meter.
>>>> http://www.awsperry.com/sperry/catalog?item=dm-300
>>>>
>>>> I inserted the red lead into the V terminal on the right. Not sure
>>>> if that's right or not, the manual is not very clear.
>>>>
>>>> _______
>>>> Free Windows Clipboard Utility
>>>> http://www.clipboardmagic.com/
>>>>
>>>
>>>
>>>Yu need to have the red lead in the "ohms" jack,the one with the Omega
>>>symbol,between "A" jack and COM jack. Then use the 200 ohm range.
>>
>> uNLESS I"m looking at the wrong picture, the A jack is for the 10 amp
>> scale only. Everything else in this meter uses the middle jack for
>> the black wire**, and the right jack for the red.
>
>you must be looking at the wrong pic,the DM-350A I looked at had 4 jacks;
>A for amps
>"omega" for ohms
>COM
>V for volts.
>
>The TOP pix was a different model (DM-370)than what the OP cited.(DM-350A)
This is hard. If homework keeps getting harder, I'm going to have to
drop out of school.
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