Chapter 2. Initial Setup
Transport® Model PT878 Portable Liquid Flowmeter User’s Manual 9
2.2 Caring for the PT878 Batteries
The PT878 comes with self-contained, built-in rechargeable batteries to
support portable operation. For optimum performance, these batteries
require a minimum of maintenance.
CAUTION! Use only GE-approved batteries and desktop chargers.
These chargers are designed to maximize battery life.
Using other batteries or chargers voids the warranty and
may cause damage.
IMPORTANT: For CE compliance, the PT878 is classified as a
battery-powered device, not to be used with the AC
adaptor.
2.2.1 Charging and Storing the Batteries
When you receive the PT878, you will need to initially charge the batteries.
Also, the battery may need recharging if it has not been used for a long
period of time. The batteries must be charged up to 8 hours to receive the
maximum charge. When fully charged, the batteries provide 8 to 10 hours
of continuous operation. An internal battery gauge indicates the remaining
power in the batteries.
To charge the batteries, simply plug the AC power module cord into the
power jack (shown in Figure2 on page 6) and be sure the battery pack is
installed. When the PT878 is plugged into line voltage, the internal battery
charger automatically charges the batteries, whether the PT878 is on or off.
If the PT878 is on, the Battery icon in the upper right corner of the screen
indicates battery status (as shown in Table2 on page 10).
Note: For version 1B of the PT878 software, you must also press the red
power key in the upper right corner of the keypad. (See page 110 to
determine your software version.)
For optimal run time, charge the batteries only in temperatures from 50°F to
104°F (10°C to 40°C). Otherwise, the batteries will not be properly charged
and will have a significantly reduced run time.