FG2 Fuel Gauge for CNG Powered Vehicles

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May 2011
application/pdf iconfg2 loop powered fuel gauge.pdf
application/pdf iconfg2CAL.pdf

Innovec offers a unique Fuel Gauge system which derives it's power from the signal it measures, thus both economically superior to it's competitors as well as enviromentally friendly The backlit high contrast display of fuel level is distinctively clear and consists of a visible and audible indication of low fuel. The instrument is housed in a 48 x 96mm impact resistant extruded aluminium enclosure with weatherproof front. The instrument incorporates a 3.5 digit 12.5mm high LCD display with a wide viewing angle and white LED backlight.

FEATURES

  • Accepts 4-20mA input
  • User programmable in engineering units
  • Low fuel alarm indication screen icon, LED and Buzzer
  • Backlit LCD display
  • Low cost - High Performance
  • FG2 is in a dashboard mount enclosure
  • Australian design and manufacture

The FG2 has been designed to accept an input signal of 4-20mA and be powered from that signal. The input measurement is shown on a 12.5mm digit height 3.5 digit liquid crystal display (LCD). The FG2 is user programmable in engineering units to display fuel pressure.

TECHNICAL SPECIFICATIONS

Input Details
  • 4-20mA current loop with a voltage drop of 2.5 volts at 20mA
  • Forward current overload of one (1) ampere for 5 milliseconds and a reverse current of one ampere continuous display
  • A white LED backlit 3.5 digit high contrast liquid crystal display (LCD) on a reflective background with a wide viewing angle and a viewing distance of 5 metres
Decimal Points
Three (3) position user selectable by dip switch for the following formats: 100.0, 10.00, 1.000.
 
Span Range
0 to 2000 counts adjustable. For field adjustments the zero and span potentiometers are accessible from the rear of the instrument.
 
Alarm Level
The instrument incorporates a low alarm. The alarm level can be set by qualified personnel and includes red LED indication of an active alarm as well as audible indication of the active alarm. For field adjustments the alarm level setting potentiometer is accessible from the rear of the instrument.
 
Accuracy
0.1% of reading +/- 1 count.
 
Environmental Parameters
  • 0-70 degrees Celsius
  • 0-90% rh non-condensing
Connection Details
Terminal 1:input low (-)
Terminal 4:backlight option minus (-)
Terminal 2:not used
Terminal 5: backlight option plus (+)
Terminal 3:input high (+)
 

Instrument Power Supply
The operating power for the FG2 is obtained from the input signal current loop.
 
Case Details
  • Height: 96 mm
  • Width: 48 mm
  • Depth: 75 mm (including rear connector)
Weight
200 grams.
 
Mounting Details
Dash mounting with a cut out of 91mm wide by 43mm high.
 
Ordering Information
  • Model/input/display units/power supply/options
  • Sample no.FG2/4-20mA/0-350/LP
  • All units shipped factory calibrated to your specifications
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