Lamar Technologies Activator 282 - Manual (Page 14)

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6.5 VERIFYING CHARGING VOLTAGE THRESHOLDS (MIN-MAX METER)
This procedure is not required but may be performed as desired. It achieves the same
results as the previous procedure, but uses a recording instrument to watch battery
voltages instead of a technician.
Tools and materials:
a) Activator 282 to be verified
b) Battery for test
c) Calibrated “min-max” holding voltmeter such as the Fluke 287. Alternately, you
may use another voltage recording device such as a chart recorder or data
acquisition system that can accurately capture the highest and lowest voltages
seen in the range of 24 ~ 32 Volts DC.
d) (Optional) Power resistor, as in previous procedure
e) (Optional, for use with power resistor) Tip plugs and wiring as in previous
procedure
Procedure:
1) (optional) Make up the wire harnesses as detailed in the previous procedure.
2) Connect the Activator 282 to a battery.
3) Connect a calibrated min-max voltmeter or other recording device to the red and
black tip jacks of the Activator 282, either directly or through the wire harness.
4) Turn on the Activator to charge the battery. Leave the Activator 282 charging the
battery for at least three charge cycles, so the Activator 282 “topping charge”
lasts only two minutes.
5) Set the recording device to record maximum and minimum voltages.
6) (Optional) When the Activator 282 shows a green READY light, connect the
power resistor across the tip jacks in parallel with the voltmeter/recording device.
This will discharge the battery. Without the resistor it may take several days for
the battery to self-discharge and start the next charge cycle.