I have a 4 year-old Smiths Timeguard ZV700 switch, whose timer mechanism
has ceased to function: the lcd display is blank. I suspect the internal
battery is dead. Smiths helpline is most unhelpful: no user-servicable
parts and we don't do repairs. Does anyone know (a) how plausible my
suspicion is and (b) what the internal rechargeable battery is likely to
be? It has "061" printed on a green sleeve; nothing I can see on the
battery itself.

Thanks,
Douglas de Lacey

This any use?

http://tinyurl.com/dvlsq


--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
This any use?

http://tinyurl.com/dvlsq

Judging by the pdf file, if the battery is flat you will get a blank
display, try recharging via the instructions or replace battery.
--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
The3rd Earl Of Derby wrote:

This any use?

http://tinyurl.com/dvlsq


Judging by the pdf file, if the battery is flat you will get a blank
display, try recharging via the instructions or replace battery.

Yes, that's why I suspect the battery (the pdf is basically just the
instructions which came with the unit). But what do I replace the
battery with -- the instructions don't, and the helpdesk couldn't, give
me the specs. Anyone know?

Thanks,
Douglas de Lacey

Douglas de Lacey wrote:
The3rd Earl Of Derby wrote:
The3rd Earl Of Derby wrote:

This any use?

http://tinyurl.com/dvlsq


Judging by the pdf file, if the battery is flat you will get a blank
display, try recharging via the instructions or replace battery.

Yes, that's why I suspect the battery (the pdf is basically just the
instructions which came with the unit). But what do I replace the
battery with -- the instructions don't, and the helpdesk couldn't,
give me the specs. Anyone know?

Thanks,
Douglas de Lacey

Well the only way you're going to find out is to open it up and see what
the battery is, lets face it, if you don't its going to be sitting there
grinning at you.

So what have you to lose?
--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
Douglas de Lacey wrote:
The3rd Earl Of Derby wrote:
The3rd Earl Of Derby wrote:

Judging by the pdf file, if the battery is flat you will get a blank
display, try recharging via the instructions or replace battery.

Yes, that's why I suspect the battery (the pdf is basically just the
instructions which came with the unit). But what do I replace the
battery with -- the instructions don't, and the helpdesk couldn't,
give me the specs. Anyone know?

Thanks,
Douglas de Lacey

Well the only way you're going to find out is to open it up and see what
the battery is, lets face it, if you don't its going to be sitting there
grinning at you.

So what have you to lose?

the one other possible is to google for data sheets using the nubmers
printed on the chip, you might get supply voltage data that way. And
the final option, attach to wall wart and increase V until it works ok.

I would have thought though it would be more likely to be a CR supply
than a battery. But I dont know, havent seen it.


NT

In message , Douglas de Lacey
writes
I have a 4 year-old Smiths Timeguard ZV700 switch, whose timer
mechanism has ceased to function: the lcd display is blank. I suspect
the internal battery is dead. Smiths helpline is most unhelpful: no
user-servicable parts and we don't do repairs. Does anyone know (a) how
plausible my suspicion is and (b) what the internal rechargeable
battery is likely to be? It has "061" printed on a green sleeve;
nothing I can see on the battery itself.

Email me a photo or two

--
geoff

In message , The3rd
Earl Of Derby writes
The3rd Earl Of Derby wrote:
This any use?

http://tinyurl.com/dvlsq

Judging by the pdf file, if the battery is flat you will get a blank
display, try recharging via the instructions or replace battery.

I would have thought that the battery would have been charged if it's
chargeable - it's knacked


--
geoff

In message .com,
writes
The3rd Earl Of Derby wrote:
Douglas de Lacey wrote:
The3rd Earl Of Derby wrote:
The3rd Earl Of Derby wrote:

Judging by the pdf file, if the battery is flat you will get a blank
display, try recharging via the instructions or replace battery.

Yes, that's why I suspect the battery (the pdf is basically just the
instructions which came with the unit). But what do I replace the
battery with -- the instructions don't, and the helpdesk couldn't,
give me the specs. Anyone know?

Thanks,
Douglas de Lacey

Well the only way you're going to find out is to open it up and see what
the battery is, lets face it, if you don't its going to be sitting there
grinning at you.

So what have you to lose?

the one other possible is to google for data sheets using the nubmers
printed on the chip, you might get supply voltage data that way. And
the final option, attach to wall wart and increase V until it works ok.

I think that the battery profile just might be an important
consideration here

--
geoff