CALIBRATION
1. MAXIMUM
CURRENT:
•
Connect the Trickle Charger to a battery through an ammeter
(500mA to 1A scale), in series with either lead.
•
Adjust R19 to obtain the desired current.
NOTE: Battery voltage must be lower than the programmed float
voltage (one volt or more).
2. FLOAT
VOLTAGE:
NOTE: Voltage adjustments cannot be performed with no load.
•
Connect the Trickle Charger output to a Power Supply, in parallel
with a resistor/capacitor load network (see diagram).
•
Connect also an ammeter in series with either lead and a
voltmeter across the output.
•
Adjust the Power Supply voltage towards the required level (e.g.,
28V).
•
Adjust R20 to make the charge current diminish to about 5 to
10% of the maximum current, when the Power Supply is at the
required float value. (e.g., at 28.0V, the current should go down
to about 10mA to 20mA.
•
Adjust the Power Supply above and below the set voltage and
observe that the current is controlled as expected.
•
Test on a battery and re-adjust as required (note: allow for the
battery voltage to stabilize).
ADJUSTMENTS
CAUTION! 36V is present at the input of the Trickle Charger
JFM Engineering, Inc.
TCS-1
Battery
Trickle Charger
Instruction Manual
JFM Engineering, Inc.
