Sample Preventive Maintenance Procedure - HindlePower AT30 SERIES Operating And Service Instructions

OPERATING THE AT30

SAMPLE PREVENTIVE MAINTENANCE PROCEDURE

AT30 BATTERY CHARGER (JD0064-00)
Suggested Frequency: every six (6) months
Maintenance date
High voltages appear at several points inside the AT30. Use extreme
caution when working inside the enclosure. Do not attempt to work
inside the AT30 unless you are a qualified technician or electrician.
Step
(standard features)
•
Clean AT30
•
•
Check all
•
electrical
connections
and wiring
•
•
Check ac input
voltage
•
Check dc
output voltage
•
Check ripple
voltage
•
Test font panel
indicators
•
Test summary
alarm relay
42
Performed by
!
WARNING
Instructions
All vents clean and open.
Dust and debris removed from inside unit.
TB1 connections all tight.
Internal wiring connections tight, slip-on
connectors fully seated. Wire and lug
insulation in satisfactory condition.
Terminations at battery or dc bus are tight
and corrosion free.
Measure between TB1-L1, TB1-L2 &
TB1-L3 using an ac voltmeter. Value
must be within +10% & -12% of nominal
voltage.
Measure at TB1 (+) and TB1(-) using a dc
voltmeter. Value should agree with the
front panel voltmeter within +/-0.25%,
and must be correct values for your
battery. If the AT30 is using a
temperature compensation probe, see the
graph on page 23 to determine correct
battery voltage. You need to know the
battery temperature for this step.
Measure ac ripple at battery terminals
using an ac voltmeter set to the milliVolts
scale. Check against specification in
Appendix A on page 64.
Press the key on the front
LAMP TEST
panel.
Press the key and hold for
LAMP TEST
4 seconds. The summary alarm relay at
TB3 will transfer.
Results
OK
OK
OK
OK
OK
Input Vac
Float Vdc
Equalize Vdc
Ripple mVac
OK
OK