Haag-Streit Perkins MK3 Manual De Instrucciones página 29

Replacement of the battery pack should only be carried out by the HS-UK
engineers.
7.4.1 Charger unit
The Perkins Mk3 tonometer is powered by a 3.6V Ni MH chargeable battery pack that will
last for approximately 25 hours.
The battery indicator LED indicates;
Green – fully charged
Green Fully charged.
Orange – several hours left
Orange Several hours of use left.
Red – Battery needs to be charged
Red Battery needs to be charged
When the tonometer is first plugged in, the battery charger LED will show orange for
several seconds while it gives a short charge to the tonometer battery.
The battery charger will then switch to yellow for several seconds while it carries out
initialisation analysis of the tonometer battery. If the tonometer battery condition is
acceptable the battery charger LED will switch to orange again for the "fast" charge
and stay orange until Tonometer battery is almost fully-charged (up to 3 hours).
When the battery charger detects the tonometer battery is almost fully-charged, the
battery charger LED switches to green with short flashes of yellow (up to 1 hour) to
complete the charge.
When the top-off charge is complete, the battery charger LED will switch to solid green
(trickle charge) indicating the tonometer battery is fully charged
The battery pack requires no maintenance and is designed to last for the life-time of the
device (5 years).
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