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New Maximum thermometer.

PostPosted: 2014 Mar 19, 17:30
by Richard Hunt
I have just bought a new solid stem maximum thermometer and I am finding it difficult to reset it.
It was reading 60°C when I unpacked it, and after a long afternoon shaking it about it now reads 55°C.

The gap between the bulb and the constriction will not close up no matter how much I wave it about, am I been stupid and doing something wrong or shall I send for a replacement?.

Any clues would be great.

Cheers.

Re: New Maximum thermometer.

PostPosted: 2014 Mar 19, 22:05
by Martin Rowley
Richard Hunt wrote:I have just bought a new solid stem maximum thermometer and I am finding it difficult to reset it.
It was reading 60°C when I unpacked it, and after a long afternoon shaking it about it now reads 55°C.

The gap between the bulb and the constriction will not close up no matter how much I wave it about, am I been stupid and doing something wrong or shall I send for a replacement?.

Any clues would be great.

Cheers.


... at first reading, it sounds as if the constriction has been manufactured too 'tightly': it needs to be of the 'right' bore - too much (or broad) and the thermometer behaves like an ordinary instrument; too little (or narrow) and you have the problem described. I would leave it a couple of days - /gently/ trying to shake the mercury thread down - it may be that adjustment to more normal temperatures might just allow resetting correctly. If no advance after a couple of days though, I'd be contacting the supplier.

Martin.

Re: New Maximum thermometer.

PostPosted: 2014 Mar 20, 07:20
by Richard Hunt
Thanks for that Martin, I've been shaking it constantly but it still reads around 55°C.
I'm going to ring Russell this morning and ask them.

Thanks for the reply.