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GASURVEYOR 7B-500R - USER HANDBOOK
Batteries
Rechargeable Battery Pack
The GMI rechargeable battery pack provides approximately
nine hours operational life, from fully charged, at ambient
temperature of 20
o
C (68
o
F). An indication of the battery
condition is displayed after power on and during warm-
up, with status shown as either OK or LO. If LO condition
is displayed, a maximum battery operational life of 90
minutes remains. During operation the ‘BAT’ flag is displayed
when approximately 30 minutes operating time is left at
normal temperatures. The instrument will then turn off. See
Recharging the Battery Pack in Chapter 5 OPERATOR
MAINTENANCE.
Construction
The instrument is housed in a tough, impact resistant,
moulded case made of polypropylene.
The top panel is protected by a stainless steel top plate
incorporating a toughened glass LCD cover.
The battery pack is attached to the main instrument body by
means of two stainless steel hexagonal screws.
The instrument sensors are protected from dust and
water by membrane and cotton filters, when using probe
handle assembly (GMI Part No. 12481). Other probes with
associated filters are available as accessories.
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