Operation

1250/1750/2750 Manual 3/6/02 2:45 PM Page 19

Note:

•Loose connections can result in a severe decrease in voltage which may cause damage to the wires and insulation.

•Failure to make proper connection between the inverter and the power source will result in reverse polarity. Reverse polarity will blow the internal fuses in the inverter and may cause per -manent damage to the inverter. Damage caused by reverse polarity is not covered under the Whistler warranty.

•Making the connection between the Positive (+) ter- minals may cause a spark as a result of current flowing to the capacitors in the inverter. This is a normal occurrence. Due to the potential for sparking, how- ever, it is extremely important that both the inverter and the 12 volt battery be well removed from any pos- sible source of flammable fumes or gases.

Failure to heed this warning could result in fire or explosion.

6.Run a ground from the Ground Lug Terminal at the rear of the inverter to a proper grounding point using the shortest practical length of 18 AWG wire. Selection of the grounding point will depend on where you are using the inverter. The ground wire may be connected to the chassis of your vehicle or to the grounding system in your boat or to the earth if you are operating the inverter in a remote location. Before

OPERATION

connecting the ground, make certain that the invert- er is turned off. Operating the inverter without properly grounding it may result in electrical shock.

7.Turn the inverter ON (I). Check the Bar Graph Meter on the front panel. The Voltage Bar Graph should read between 11 and 14 volts depending on the volt- age of the power source. If the reading is not within this range, check the voltage of the power source and the terminal connections on the power source and the inverter to make sure they are secure.

Neither the High Temperature or Over Load LED Indicators should be illuminated.

8.Confirm that the equipment or appliance to be oper- ated is turned off. Plug the equipment or appliance into one of the two AC receptacles on the front panel of the the inverter.

9.Turn the inverter to the ON (I) position. Turn on the equipment or appliance.

Note:

•The audible alarm may make a momentary “chirp” when the inverter is turned OFF (O). The same alarm may also sound when the inverter is being connect- ed to or disconnected from the 12 volt power source. Again, this is normal.

•The use of an extension cord from the inverter to the