I have 2 Smiths Temperature gauges, one has 359 on the back the other 
441 anyone any ideas to their significance? Something to do with the 
resistance of the sender perhaps?

Thanks

Alan...

The date being 20 Aug 2007, Phaeton  decided to 
write:

> I have 2 Smiths Temperature gauges, one has 359 on the back the other
> 441 anyone any ideas to their significance? Something to do with the
> resistance of the sender perhaps?

Are the numbers on stickers or stamped into the casing? Could they 
just be QA identifiers? The resistance ranges and temperature 
coefficients of senders do vary a bit, as do the threads, but is there 
any identification on the sender?

-- 
Richard Porter
ricp at / www. minijem.plus.com
"You can't have Windows without pains."

Richard Porter wrote:
> The date being 20 Aug 2007, Phaeton  decided to 
> write:
> 
> 
>>I have 2 Smiths Temperature gauges, one has 359 on the back the other
>>441 anyone any ideas to their significance? Something to do with the
>>resistance of the sender perhaps?
> 
> 
> Are the numbers on stickers or stamped into the casing? Could they 
> just be QA identifiers? The resistance ranges and temperature 
> coefficients of senders do vary a bit, as do the threads, but is there 
> any identification on the sender?
> 

There should be some numbers on the dial. Not on the back these as above 
  I think are QA marks.

r

Rob wrote:
> Richard Porter wrote:
>> The date being 20 Aug 2007, Phaeton  decided to write:
>>
>>
>>> I have 2 Smiths Temperature gauges, one has 359 on the back the other
>>> 441 anyone any ideas to their significance? Something to do with the
>>> resistance of the sender perhaps?
>>
>>
>> Are the numbers on stickers or stamped into the casing? Could they 
>> just be QA identifiers? The resistance ranges and temperature 
>> coefficients of senders do vary a bit, as do the threads, but is there 
>> any identification on the sender?
>>
> 
> There should be some numbers on the dial. Not on the back these as above 
>  I think are QA marks.
> 
> r
Thanks for the responses, I'll go & have a look on the front to see if I 
can see any markings.

Alan...

Phaeton wrote:
> Rob wrote:
>> Richard Porter wrote:
>>> The date being 20 Aug 2007, Phaeton  decided to write:
>>>
>>>
>>>> I have 2 Smiths Temperature gauges, one has 359 on the back the other
>>>> 441 anyone any ideas to their significance? Something to do with the
>>>> resistance of the sender perhaps?
>>>
>>>
>>> Are the numbers on stickers or stamped into the casing? Could they 
>>> just be QA identifiers? The resistance ranges and temperature 
>>> coefficients of senders do vary a bit, as do the threads, but is 
>>> there any identification on the sender?
>>>
>>
>> There should be some numbers on the dial. Not on the back these as 
>> above  I think are QA marks.
>>
>> r
> Thanks for the responses, I'll go & have a look on the front to see if I 
> can see any markings.
> 
> Alan...
Cannot find any other marking on them at all, apart from made in UK.

Alan...