GMI First Responder, User Handbook Manual

Page: 52 / 104

FIRST RESPONDER - USER HANDBOOK
5-4
3) Insert new battery pack.
4) Fasten base screws.
5) Check that instrument switches on and works to
specification.
Recharging the Battery Pack
The battery pack should be recharged in the following
situations:
The BAT or BAT FAULT message is displayed.
The instrument will not switch on.
The pump will not switch on.
It is recommended that the battery pack is fully discharged
on a regular basis (once every three months). This can
be done by running the instrument continuously or using
the battery conditioning facility on the Smart Charger. The
batteries can be charged on the instrument but the
instrument itself should be switched off. Regular complete
discharge will keep the battery pack in good condition.
Replacing Alkaline (LR20) Batteries
All four batteries should be replaced at any one time and
in a safe area. GMI only recommend the use of Energizer
or Duracell cells.
1) Loosen the two instrument base screws (4mm
hex) using the special tool provided.