TI3500 GPU-24
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5
Unit Care and Maintenance
5.5 – Normal Function Test Procedures
This section deals with “normal function” test proce dures, and includes all
steps necessary to ensure that the TI3500 GPU is operating within specified
para meters prior to use. A digital multimeter (an example is shown in Figure
5.5.1) capable of measuring dc and ac voltage and resistance will be required
to perform some of the tests. It is essential to test for shorts to detect any
problems with the unit. These functional test procedures should become
routine.
Check Unit for Evidence of Damage
Check for dents, punctures, case distortion or misalignment, and cracked
or loose connec tors. If no damage is evident, proceed to the next step. If
damage is evident, contact Tesla™ Industries, Inc.
Check DC Voltage Reading at DC Receptacle Terminals
To verify that the power cells are fully charged, set the digital multimeter to measure dc voltage. As shown in
Figure 5.2.4., place the positive probe (red) on the positive post of the DC Output Connector and the negative
probe on the negative post. The multimeter display should read approximately 28.5 Vdc (±0.5 Vdc) when
power cells are fully charged and the unit is plugged into an appropriate ac power source. When the unit is
not plugged into an ac power source, the multimeter display should read approximately 25.5 Vdc.
Figure 5.5.1 – Digital
Multimeter
Figure 5.5.2 – Testing DC Receptacle
