The instrument is rangeable in engineering units for milliamp and voltage inputs. A 12 to 24VDC at 30mA loop supply is available for the direct connection of 2 wire transmitters.
The FG4 is user rangeable in engineering units
Band gap reference
Low cost - High performance
12 to 24VDC isolated supply
5 digit high brightness LED display of 14mm digit height
Two set point relays with form C contacts and a panel mount enclosure of 48x96mm
24VDC loop supply for loop powered sensors and transmitters
Intended as an upgrade on Mercedes buses
The FG4 Fuel Gauge is an advanced instrument that has been designed and manufactured to stringent specifications which accepts 4-20mA and 1-5VDC analogue process signals.
The FG4 provides two (2) set point relays with 99% dead band. All the set point relays have changeover contacts and will switch one amp at 240VAC resistive. Screw terminal electrical connection by two part plug connectors allows simple connection and disconnection.
The instrument has a bipolar differential input. To realise the accuracy a temperature compensated band gap reference is used in the radiometric measurement system.
Full scale range of 1-5VDC and 4-20mA are acceptable.
NMRR greater than 100db
CMRR greater than 86db
A 3.5 digit high contrast light emitting diode (LED) of 14mm digit height with a wide viewing angle and a reading rate of 2.5 per second. The digits have a viewing distance of 5 metres.
Three (3) position user selectable by push on jumper.
Two (2) switch point relays are provided with form C contacts rated at 240VAC one (1) ampere resistive.
Instrument Power supply
12 to 40VDC.
Transducer Power Supply
A 24VDC at 30mA transducer power supply is incorporated in the instrument.
0-70 degrees Celsius.
0-90% RH Non- condensing.
Panel mounting plastic enclosure of case dimensions 96mm wide by 48mm high by 161mm deep with a panel cut out of 91mm wide by 43mm high.
Model/input signal/display units/power supply
Sample number: FG4/1-5V DC/0-250/24VDC
All units shipped factory calibrated to 0-250
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