FUEL-VIEW DFM-100CD

The compact and light weight fuel flow meters for monitoring fuel consumption, differential type

FUEL-VIEW flow meters operate on the principle of a rotary piston that is mounted into a chamber ring which rotates in a chamber case. The rotating speed is measured by electronic sensors which measure a magnetic pulse. The number of pulses in time is proportional to the fuel flow rate. The unique design of the flow meter allows fuel flow, even if the chamber is locked or clogged up. A fuel filter effectively protects the measuring chamber from contamination and can be removed and washed without disassembling the flow meter.

FUEL-VIEW model DFM-100CD can be used for 2...100 l/h. It is a differential fuel flow meters with a separate input and output connection for the supply and return line to measure the consumption of the fuel. The instrument has a battery powered LCD display that allows reading of actual flow [l/h], total flow consumption [l], total engine operating time [h], engine operating time in ”idling”, “optimal” and “overload” mode.

Technical specifications

Performance
Accuracy	± 1...3% RD (depends on ratio of flow rate in forward chamber to flow rate in return chamber)
Turndown	1:50 (2...100%)
Media	Diesel fuel, gasoline*, petrol*, fuel oil, motor fuel, bio fuel. Other liquids with kinematic viscosity from 1.5 to 6 mm2/sec are possible but maximal flow rate could be lower than the specified flow range and pressure drop over the instrument can be higher.
Repeatability	<0.1% RD typical
Operating pressure	2...25 bar(a)
Max. pressure drop	<0.3 bar(d) at 20°C on diesel
Operating temperature	-40...80°C
Humidity	<95% at environmental temperature of 40°C
Vibration	Max. acceleration of 100 m/s2 in frequency range of 5...250 Hz
Aggressive environment	Resistant to fuel and lubricant material

Mechanical parts
Material (wetted parts)	O-ring: aluminium gasket: oil-resistant rubber chamber bridge: steel bushing with magnets: plastic mud filter: plastic and steel grid chamber cover: Zinc-Aluminium alloy
Housing	Zinc-Aluminium alloy (ZA4)
Ingress protection (housing)	IP54
Connections	R female M14 x 1.5 thread

Electrical properties
Power	Batter powered LCD screen (2 years of life)

* DFM fuel flow meters are manufactured of petrol-proof materials. When working with petrol, national legislation safety measures must be applied and the declared lifetime of the measuring chamber of the flow meter is not guaranteed.