Velleman PI2500B Mode D'emploi page 8

7. Troubleshooting
Problem / Symptom
Buzz in audio system
Television interference
Low output voltage on voltmeter (192-208Vac)
Low output voltage and current indicator in
red zone
No output voltage & voltage indicator in red
zone
Not output voltage, no voltage indication
No output voltage ; voltage indicator in upper
red zone
Permanent low battery alarm ; voltage
indicator below 11V
No output voltage, overheat indicator on,
load >2500W or 250A input current
No output voltage ; overload indicator on
8. Maintenance
Your PI2500B & M requires very little maintenance. Clean the exterior periodically with a damp cloth to prevent dust
and dirt accumulation. Clear the air intake on the rear panel and air exhaust slots on the front panel especially. A
regular maintenance check is recommended, and all visible screws on the unit should be tightened periodically.
9. Specifications
Output power
Output voltage
Output waveform
Output frequency
Overload
Input voltage
Low-battery alarm
Low-battery shutdown
Efficiency
No-load current draw
switched on
switched off
Dimensions
Weight
The information in this manual is subject to change without prior notice.
PI2500B & M 12V
Possible Cause
Power supply in audio system does not filter
modified sine wave
Inverter is not (well) grounded
Other high power loads are operating
Bad antenna signal or bad antenna cable
Television too close to inverter
DC cable radiated interference
Average reading voltmeter is used
Overload
Low input voltage
Inverter switched off
No power to inverter
Internal fuse open
Reversed DC polarity
High input voltage
Poor DC wiring, poor battery
Thermal shutdown
Short circuit or wiring error
Very high power load
2500W
230Vac RMS +/-5%
modified sine wave, phase corrected
50Hz +/-1Hz
2501 ~ 3000W
10 ~ 15Vdc
audible, 10.7Vdc
10Vdc
approx. 85-90%
<0.6Adc
<0.2mAdc
496 x 203 x 166mm
9kg
Use audio system with higher quality power
supply
Make sure the inverter is well grounded
Switch off high power loads
Verify signal and cable quality
Move the TV set away from the inverter
Keep DC cables as short as possible
Use true RMS reading voltmeter
Reduce the load
Recharge battery, check connections and
cables
Switch inverter on
Check wiring to inverter, check battery fuse
Have a technician check and replace
Have a technician check the fuse ;
OBSERVE CORRECT POLARITY
Make sure you are using a 12V battery ;
check regulation of charging system.
Check (& replace) cables and connections,
replace or recharge battery.
Allow inverter to cool down. Reduce load if
continuous operation is required
Improve ventilation, make sure ventilation
openings are not obstructed, reduce ambient
temperature
Check AC wiring for short circuit or improper
polarity
Remove or reduce load
PI2500B pin earth
8
Solution
PI2500M spring earth
VELLEMAN