An LP, tank gauge depends on an internal float and gear driven magnet, ( magnetic field) to pass, through the tank metal to the sensor that is external.
Unlike a gas or diesel tank where the sensor is attached directly to the float, inside the tank. The accuracy of the LP gauge can be effected by the condition of the sensor ground to the tank and the tanks ground to the frame.
The sensor is set to read full when the tank is approx 80% full of liquid and LP is temperature sensitive. If the person filling the tank doesn't shut off the pump as soon as liquid comes out the spit valve and you filled in the morning when the LP was cool , you will use a lot of LP before the gauge starts to drop off the full mark.
JMHO: I'd be most concerned about the gauge accuracy at the 1/4 mark than at the full.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
|