Lamar Technologies BETA D-50 - Manual (Page 24)

5. CALIBRATION AND MAINTENANCE
BETA D-50
BATTERY
R SHUNT
AMMETER
mV
EXTERNAL CALIBRATED
MILLIVOLTMETER
TEST
PORTS
Figure 5-2 Circuit diagram for ammeter calibration
A.
SWITCH OFF MAINS POWER
Turn off the AC on-off/reset power switch.
B.
TURN DOWN DISCHARGE CUR-
RENT
Repeatedly turn the Current Adjust knob fully counter-clockwise to set discharge
current to zero.
C.
CONNECT BATTERY
Connect the battery DC cable to the battery and ensure the connector is plugged
in completely.
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BETA D-50 TESTER / ANALYZER - OPERATING MANUAL V2.2