Tesla TI4676 User Manual
Page 22
SECTION III.
FUNCTIONAL CHECK PROCEDURES AND TROUBLE SHOOTING
4-8. FUNCTIONAL CHECK PROCEDURES
This section deals with normal functional check procedures, and includes
all steps necessary to ensure the TI4676 is functioning within specific
operational parameters prior to operational use. As users gain experi-
ence with the TI4676, they will incorporate these functional checks as a
routine practice.
4-9. REQUIRED EQUIPMENT FOR FUNCTIONAL CHECK.
FLUKE OR EQUIVALENT TYPE DIGITAL MULTIMETER.
4-10. DC FUNCTIONAL CHECK.
1. CHECK UNIT FOR EVIDENCE OF DAMAGE - Check for dents, punctures, case
distortion or misalignment, cracked or loose connectors. If no damage is
evident proceed to step two.
IF DAMAGE IS EVIDENT contact distributor or manufacturer.
2. ENSURE UNIT IS NOT PLUGGED INTO 120 OR 240 VDC. Unplug AC power if
plugged in.
3. CHECK UNIT INTERNAL RESISTANCE (TEST FOR SHORTS) - Better than 10
Mega-ohms. Ensure no short exists.
Negative (-) DC receptacle terminal and unit case.
Positive (+) DC receptacle terminal and unit case.
4. CHECK DC VOLTAGE READING AT DC RECEPTACLE TERMINALS.
24 to 25.5 VDC depending on state of charge.
5. PLUG IN 120 OR 240 POWER CORD.(
CHECK FUSE WINDOW FOR PROPER SET-
TING
). - Ensure power unit is connected to a suitable AC power source
(120 USA or 240 European).
6. CHECK UNIT FOR STATE OF CHARGE -
Unit shall be in a position to en-
sure unit’s vent ports are free from blockage.
After approximately 5-8
seconds, unit LED status indicator shall illuminate indicating power
cell state of charge. Ensure LED status indicator and cooling fan is
operational. Prior to continuing to step 7, the LED status indicator
should show a single green bar (last LED bar) or a flickering LED status
bar to indicate the unit’s power cells are fully charged. Also under
full charge the fan will ratchet but not enable.
NOTE:
Under a full charge the LED indicator should show a single steady green
bar or the entire LED will be flickering. The fan will also exhibit
ratcheting but will not come on. This is normal operation and the unit
will go into standby mode, the unit is ready for use.
4-5