Lamar Technologies BETA D-50 - Manual (Page 16)

4. DETAILED OPERATING INSTRUCTIONS
1-hour rating Discharge settings
Ampere Time Rate Cutoff
Volts hours (min) (amperes) (volts)
24 10 60 8 18/20
24 15 60 12 18/20
24 20 60 16 18/20
24 30 60 24 18/20
24 40 60 32 18/20
12 10 60 8 9/10
12 15 60 12 9/10
12 20 60 16 9/10
12 30 60 24 9/10
12 40 60 32 9/10
Table 4-2. Discharge test setting for sealed lead-acid batteries
4.5.2 NICKEL-CADMIUM BATTERIES
For nickel-cadmium batteries the cutoff voltage should equate to an average of 1 volt per
cell, when discharge tested at a current of approximately 80% of the C
1
-rate. For a 24
volt/10 ampere-hour battery with 19 cells, the cutoff voltage would be set to 19 volts when
discharging at 8 amperes (see table 4-3).
1-hour rating Discharge settings
Ampere Time Rate Cutoff
Volts hours (min) (amperes) (volts)
24 10 60 8 19
24 15 60 12 19
24 20 60 16 19
24 30 60 24 19
24 40 60 32 19
12 10 60 8 10
12 15 60 12 10
12 20 60 16 10
12 30 60 24 10
12 40 60 32 10
Table 4-3. Discharge test setting for nickel-cadmium batteries
4.5.3 SETTING CUTOFF VOLTAGE ON THE BETA D-50
Before setting the cutoff voltage, a battery has to be connected and the unit has to be
turned on.
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BETA D-50 TESTER / ANALYZER - OPERATING MANUAL V2.2