[volt-nuts] Datron 1281

[Todd Micallef]

I have not seen inside a 1281, but my 4920 has a 3V battery for the cal
constants. I am guessing that the unit would have flagged error codes
2110-2113.

Looking at the specs, it looks like the meter uses the 1V and 100mV ranges
for measuring resistance based on the selected range and whether or not it
is in LoI mode. The error messages appear that it is a gross measurement
error of over 100mV on both flagged ranges. I would think the 5522A would
be good enough for a quick sanity check of all possible inputs.

Todd

On Tue, Jan 20, 2015 at 4:09 AM, MailLists <lists at medesign.ro> wrote:

> I have access to a metrology lab with a Fluke 5522A, and a 8508A.
> Any hints regarding what should be checked (more thoroughly)?
>
>
> Regards,
> Gabi
>
>
>
> On 1/19/2015 10:57 PM, Laurence Motteram wrote:
>
>> An external calibration may help, as (usually/optionally) the internal
>> calibration source is characterized at the end of the calibration process.
>>
>> If you have the equipment to do so, it would be good to verify that there
>> is not something more sinister going on with the 100mV and 1V ranges other
>> than simple drift.
>>
>> Best Regards,
>>
>> Laurence Motteram
>>
>> -----Original Message-----
>> From: volt-nuts [mailto:volt-nuts-bounces at febo.com] On Behalf Of
>> MailLists
>> Sent: Tuesday, 20 January 2015 6:53 AM
>> To: volt-nuts at febo.com
>> Subject: [volt-nuts] Datron 1281
>>
>> Dear all,
>>
>> got one of the (in)famous <subj.>.
>> The full self-test fails with:
>> 2273    1V Range 100mV signal magnitude drift.
>> 2283    100mV Range 100mV signal magnitude drift.
>>
>> The same for a self-calibration.
>>
>> Any suggestions?
>> Might an external calibration help? Probably not calibrated for a long
>> time...
>>
>>
>> Regards,
>> Gabi
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