Section II Installation
Mounting
The Model 156A is designed to be operated as a portable benchtop instrument.
There are no special mounting requirements.
Battery Operation
Initially charge the 156A for 3 hours before operating the instrument. The FULL
CHARGE indicator will illuminate when the battery is fully charged.
The 156A will operate for at least 8 hours with a full charge.
The LOW BATTERY indicator will illuminate when the battery is approximately
30 minutes from total discharge.
Caution: This instrument incorporates a rechargeable 7.2 V battery pack. Do not
substitute a non-rechargeable battery because risk of fire or explosion could result.
Please contact TREK, Inc. or an authorized service organization for battery
replacement information.
Battery Charger/Eliminator Connection
The Model 156A is designed to be battery operated or operated while connected to a
line voltage source. A battery charger/eliminator is available for all nominal line
voltages.
1. Ensure the power is OFF.
2. Plug the battery charger/eliminator to the CHARGER receptacle on the rear panel.
3. Plug the free end of the AC line cord into the power source.
II - 1
Figure 2-1: Battery Charger/Eliminator connector polarity.
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