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Technoton DFM Differential-Flow Pulse-Out Meter for Engine Fuel Consumption
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Technoton DFM Differential-Flow Pulse-Out Meter for Engine Fuel Consumption

Excellent quality, Engine Fuel Consumption DIFFERENTIAL Meters, for monitoring engine fuel usage by measuring the ingoing fuel, and deducting the fuel being returned to the tank from the injector pump, particularly useful on diesel vehicles where return fuel lines are common

Suitable for all fuel oils, providing the fuel is clean, can be used with;

  • Diesel
  • Petrol
  • Kerosene
  • Heating Oil
  • Other Petroleum Deriviates
  • Biodiesel
  • Vegetable Oil
  • Fuel Blends
  • Fuel Substitutes

4 Different types of signal output (denoted by suffix):

  • P - Pulse - Not Normalised
  • K - Pulse - Normalised
  • 232 - Serial - RS-232 (Can also be set to work according to MODBUS RTU Protocol)
  • 485 - Serial - RS-485 (Can also be set to work according to MODBUS RTU Protocol)
  • CAN - CAN 2.0B Interface

OPTIONAL FITTING KIT: An adaptor kit is available which has fittings to enable connection to 3/8"BSP Male, 3/8"BSP Female, 10mm Tube Compression, and 3/8" (9.53mm) Hose Barb (All in the one kit)

3 Models available to suit various engine fuel consumption rates. Referring to your vehicle manual should give some indication as to the likely flow range required

Meters Available
 Flow RangeStarting FlowConnection ThreadAccuracy within flow rangePulses Per LitreType of Output
DFM 100D K10 - 100 LPH0.5 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)200Pulse, Normalised
DFM 100D 23210 - 100 LPH0.5 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)200RS-232
DFM 100D 48510 - 100 LPH0.5 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)200RS-485
DFM 100D CAN10 - 100 LPH0.5 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)200CAN 2.0B Interface
DFM 250D K50 - 250 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80Pulse, Normalised
DFM 250D 23250 - 250 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80RS-232
DFM 250D 48550 - 250 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80RS-485
DFM 250D CAN50 - 250 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80CAN 2.0B Interface
DFM 250 HP D K50 - 300 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80Pulse, Normalised
DFM 250 HP D 23250 - 300 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80RS-232
DFM 250 HP D 48550 - 300 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80RS-485
DFM 250 HP D CAN50 - 300 LPH2.0 LPHM14x1.5±1-3% (Depends on ratio of forward to reverse flow)80CAN 2.0B Interface
DFM 500D K100 - 500 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50Pulse, Normalised
DFM 500D 232100 - 500 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50RS-232
DFM 500D 485100 - 500 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50RS-485
DFM 500D CAN100 - 500 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50CAN 2.0B Interface
DFM 500 HP D K100 - 600 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50Pulse, Normalised
DFM 500 HP D 232100 - 600 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50RS-232
DFM 500 HP D 485100 - 600 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50RS-485
DFM 500 HP D CAN100 - 600 LPH5.0 LPHM16x1.5±1-3% (Depends on ratio of forward to reverse flow)50CAN 2.0B Interface
Meter Specification
Operating Temperatures-40 to +80 °c
Voltage10-50 vDC
IP RatingIP 54
Electrical Connection15cm lead with plug on DFM meter + 7.5m lead wth plug on one end and bare wires at other to connect to DFMi counter
Output SignalVarious, See Above
Min / Max Kinematic Viscosity1.5-6.0 mm2/Sec / Centistokes
Nominal / Max Pressure2 to 25 Bar
Max Particle Tolerance80 Micron
Fitting SizeConsult Chart Below
Pulse TypeConsult Chart Below
Electronic Display Specification
Model NumberDFM i
Operating Temperatures-40 to +60 °c
Voltage10-50 vDC, Protected up to 100v
Current Consumption50ma @ 12vDC, 25ma @ 24vDC
IP RatingIP 54
Electrical ConnectionBare wires to connect to bare wires of DFM meter extension cable + Power supply
Output SignalNone
Dimensions75mm x 60mm x 30mm
WeightMax 0.3kg

Shown Below, Installation Diagram, Meter Fitted Before Pump (Less Accurate)

Shown Below, Installation Diagram, Meter After Pump (More Accurate)

Shown Below, Optional Fitting Kit. Each DFM Fitting kit contains 4 of EACH item shown below:

Download Technoton DFM Operation Manual (All Models) PDFDownload Technoton DFM Operation Manual (All Models) PDF

Product Options

£374.60


Product CodeDFMW3RAZ539
ConditionNew

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