Fuel gauge - Moderated Discussion Areas

  ContinuousWave
  Whaler
  Moderated Discussion Areas
  ContinuousWave: Small Boat Electrical
  Fuel gauge

search | FAQ | profile | register | author help

Author Topic:   Fuel gauge

CHRISWEIGHT posted 10-16-2005 03:12 PM ET (US)
trying to sort out a fuel gauge.
1, how is it wired is it in series?
2, sender ranges between 6 ohms to 300 ohms is there a standard or do I have to arrange some form of shunt across the meter I am trying to use an old smiths gauge.
I probably am not asking the right questions but clearly I don't have a clue.
regards chris
jimh posted 10-16-2005 11:28 PM ET (US)
Mention the YEAR, the MODEL, and the LENGTH of your BOSTON WHALER boat and you will get more cogent replies.
CHRISWEIGHT posted 10-17-2005 06:49 AM ET (US)
Jimh
jim its somthing Im trying to cobble together its actually a lorry tank and sender that I want to use with an old smiths fuel gauge, its also dawned on me that It could well be 24 volt as the resistance range seems to be about double the norm.
regards chris
jimh posted 10-18-2005 10:30 PM ET (US)
The typical arrangement of an electrical tank level indicator is:
+12 volts ----->meter----->sender----ground
Refinements include isolating the ground return to go separately to the battery negative to avoid influence of other currents and regulating the supply voltage to improve accuracy.
The sender and the meter need to be matched with respect to how much current will flow at the "full" level of the sender.
CHRISWEIGHT posted 10-19-2005 08:35 AM ET (US)
Jimh
thanks Jim had a real stroke of luck used a pot to simulate the empty and full readings on the gauge and they matched the sender within a few ohms, some days you just gotta get lucky . thanks again.
regards chris

Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.

Author	Topic: Fuel gauge
CHRISWEIGHT	posted 10-16-2005 03:12 PM ET (US) trying to sort out a fuel gauge. 1, how is it wired is it in series? 2, sender ranges between 6 ohms to 300 ohms is there a standard or do I have to arrange some form of shunt across the meter I am trying to use an old smiths gauge. I probably am not asking the right questions but clearly I don't have a clue. regards chris
jimh	posted 10-16-2005 11:28 PM ET (US) Mention the YEAR, the MODEL, and the LENGTH of your BOSTON WHALER boat and you will get more cogent replies.
CHRISWEIGHT	posted 10-17-2005 06:49 AM ET (US) Jimh jim its somthing Im trying to cobble together its actually a lorry tank and sender that I want to use with an old smiths fuel gauge, its also dawned on me that It could well be 24 volt as the resistance range seems to be about double the norm. regards chris
jimh	posted 10-18-2005 10:30 PM ET (US) The typical arrangement of an electrical tank level indicator is: +12 volts ----->meter----->sender----ground Refinements include isolating the ground return to go separately to the battery negative to avoid influence of other currents and regulating the supply voltage to improve accuracy. The sender and the meter need to be matched with respect to how much current will flow at the "full" level of the sender.
CHRISWEIGHT	posted 10-19-2005 08:35 AM ET (US) Jimh thanks Jim had a real stroke of luck used a pot to simulate the empty and full readings on the gauge and they matched the sender within a few ohms, some days you just gotta get lucky . thanks again. regards chris