Lamar Technologies CA 1550 - Manual (Page 13)

3. OPERATING GUIDE - CHARGING
H. SET CHARGE CURRENT
1. CONSTANT-CURRENT
CHARGING
Turn the Ampere Adjust knob until the
desired charge current has been reached.
The charge current is displayed on the
ammeter as the current is being adjusted.
2. CONSTANT-POTENTIAL
CHARGING
Turn the Ampere Adjust knob to max (fully
clockwise) or to the desired current limit. The
charge current is displayed on the ammeter as
the current is being adjusted.
NOTE: The CA-1550 has a current limit of 25
amperes.
I. WAIT FOR CHARGE TO AUTOMATICALLY COMPLETE
During the charging of the battery the battery voltage, charge current, and
elapsed charge time are displayed.
1. CONSTANT-CURRENT CHARGING
The current remains constant while the voltage increases during the time of
charging.
2. CONSTANT-POTENTIAL CHARGING
The charger’s end voltage remains constant while the current starts at a
high value and gradually approaches zero as the battery approaches a full
charge.
The actual charge voltage in both modes is determined by the battery, until
the constant voltage is reached (28.6 volts or 35 volts in constant-current
mode).
The test completes when the set charge time has been reached. The Off
lamp illuminates.
For the constant-current method, if a second charging is desired (topping)
repeat steps C, H, and I, with the current adjusted to a lower value (usually
C
1
/ 10)
CA-1550 CHARGER / ANALYZER - OPERATING MANUAL V1.2 Page 11