Tesla TI4200 GPU-24 User Manual page 20

Check Unit Internal Resistance (Test for Shorts)
NOTE
!
1. Place the negative probe on
the ac ground probe and the
positive probe on the case.
Better than 10 MΩ, ensure no short exists.
Negative(-) dc receptacle terminal and unit case.
Positive (+) dc receptacle terminal and unit case.
Check DC Voltage Reading at DC Receptacle Terminals
26.5 to 28 Vdc depending on state of charge.
NOTE
!
TI4200 GPU-24
Unit should be disconnected from any ac power sources prior to testing.
2. Move the positive probe to
the dc positive post.
Figure 3.8.3 – Testing DC Receptacle
If unit is left charging after the batteries are fully charged, the unit will enter a
standby mode. The voltage will drop from 28.60 to 28.10 volts (±0.10).
When a load greater than 2 amps is applied, the unit will return to normal
operation.
Operating Procedures
3. Move the positive probe to
the dc negative post.
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