DIYbanter - View Single Post

on 31/12/2005, supposed :
mutley wrote:
"Andrew Gabriel" wrote in message
Is it the type with integral light, which is intended to run
from a transformer?

The main unit is a Libra D346E wireless Chime run off a transformer
(optional). The bell push which keeps on failing is a separate D260 white
sender unit with CR2032 cell.

regards,
mutley

CR2032 isnt a good start, the capacity of those is 0.000000000001
joules. Approximately. Does it have a light of any kind? That would
kill it. Anyway, its not fit for purpose, return it.

NT

For the benefit of Andrew...
The bell push is a self contained wireless unit designed to operate
from a watch style 3v Lithium cell. Powering the push from a
transformer is not an option.

The battery is perfectly adequate for the purpose, these bell pushes
can run for many years on the same cell. Current draw is much less than
a watch when the push is not operated. They are often fitted with an
LED which confirms that the push has been operated. The cell life will
be similar to the shelf life of in excess of five years, depending upon
use and usually exceeds the life of the sounder batteries.

If the cell is not lasting, then consider two possibilities.

1. The rubber button has been wrongly installed, trapping the button in
in operation permanently.

2. Moisture getting inside the bell push perhaps from mounting it in a
particularly exposed location.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk