Fluke 744 Fluke 744 Users Manual - Page 32

Battery Life, pack. The optional Ni-Cd battery Model BP7217 - specifications

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744 Users Manual Battery Life The calibrator senses which battery is installed (standard NiMH, or optional Ni-Cd model BP 7217). If the NiMH battery is installed, a battery gauge bar graph Z shows on the upper right of the display. If the Ni-Cd battery is installed, there is no battery level indication except for a low battery symbol b, that appears when it is time to charge the battery. Table 4 shows the typical operating time for a new, fully charged NiMH (Nickel-Metal Hydride) battery pack. The optional Ni-Cd battery (Model BP7217) provides approximately half the battery life of the NiMH battery. Calibrator performance is guaranteed to meet specifications until the battery gauge reads empty (Y or b). To replace the battery, refer to "Replacing the Battery" later in this manual for instructions. In the case of the Ni-Cd battery, for longest battery life and best performance, wait for b to appear before you charge the battery. Table 4. Typical Battery Life with Standard NiMH Battery Pack Operating Modes Backlight Off Measure, continuous Measure and source, with loop power on, continuous Typical intermittent operation 13 Hours 7 Hours >16 Hours Backlight On 12 Hours 6 Hours >16 Hours 22

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744
Users Manual
22
Battery Life
The calibrator senses which battery is installed
(standard NiMH, or optional Ni-Cd model BP 7217).
If the NiMH battery is installed, a battery gauge bar
graph
Z
shows on the upper right of the display.
If the Ni-Cd battery is installed, there is no battery
level indication except for a low battery symbol
b
,
that appears when it is time to charge the battery.
Table 4 shows the typical operating time for a new,
fully charged NiMH (Nickel-Metal Hydride) battery
pack. The optional Ni-Cd battery (Model BP7217)
provides approximately half the battery life of the
NiMH battery. Calibrator performance is guaranteed
to meet specifications until the battery gauge reads
empty (
Y
or
b
).
To replace the battery, refer to “Replacing the
Battery” later in this manual for instructions. In the
case of the Ni-Cd battery, for longest battery life and
best performance, wait for
b
to appear before you
charge the battery.
Table 4. Typical Battery Life with Standard NiMH Battery Pack
Operating Modes
Backlight Off
Backlight On
Measure, continuous
13 Hours
12 Hours
Measure and source, with loop power on, continuous
7 Hours
6 Hours
Typical intermittent operation
>16 Hours
>16 Hours