Lamar Technologies BETA D-50 - Manual (Page 3)

1. SYSTEM OVERVIEW
1. SYSTEM OVERVIEW
1.1 SYSTEM OVERVIEW
The Beta D-50 Tester/Analyzer is a self contained unit for discharge capacity testing of
rechargeable batteries. It has been designed to accurately test and guarantee the
emergency capacity of sealed or vented lead-acid or nickel-cadmium batteries.
Guaranteed emergency capacity is especially important for aircraft batteries.
The Beta D-50 enables testing of a battery's capacity by loading it with a constant
current of max 50 amperes (usually set to 80-100% of the battery's capacity rating)
during a fixed period of time (usually 60 minutes). The D-50 analyzes the discharge
characteristics and passes or fails the battery depending on the battery’s ability to
maintain a specified minimum voltage (cutoff voltage) for the duration of the test. The
unit has pass/fail indicators as well as displays for discharge current, cutoff voltage,
battery voltage, and test time.
The flexibility of test parameters of the Beta D-50 makes it usable for a wide variety of
batteries and voltages. The unit accurately tests lead-acid batteries of 12 or 24 volts, as
well as nickel-cadmium batteries up to 24 volts.
The use of solid state circuits in the Beta D-50 has kept its weight to a mere 30 lbs. (14
kg). Consequently the unit is easy to move around to accommodate flexibility in the work
environment.
1.2 DISPLAYS AND CONTROLS
The Beta D-50 has been designed to have very simple and easy to understand controls
and displays (see figure 1-1 and 1-2).
BETA D-50 TESTER / ANALYZER - OPERATING MANUAL V2.2 Page 1