ISTEC Corporation, your Flow Measurement and Control Specialist
 

ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
Tel 973-383-9888
Fax 973-383-9088
Email


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Eastern


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Last Update:

 With the DFM-BC (board computer), you have all the information at a glanceAquametro Contoil DFM Fuel Meter Systems

DFM-BC (Board Computer) Gives All Information at a Glance

  • Total Fuel Consumption
  • Daily Fuel Consumption
  • Current Consumption
  • Info Mode
  • Service Mode
  • Supply or Return Line Status
  • Correction Factor (e.g., temperature compensation)
  • Configuration Log
  • Error Log

Technical Data

  • Safety – Tested for Vibration, Shock and Electrical Emission and Immersion (vehicle industry standards)
  • Operation Temperature of the Hydraulic: -30°C to +80°C
  • Diesel Fuel, Domestic Fuel Oil, Engine Oil (viscosity max. 6 cSt)

Table of Materials Used for the Flow Meters

Device
DFM 8D
DFM 8S
DFM 20S
DFM 25S

Part Number
94465
04464
94466
94467
Hydraulic Connection
M14x1.5
N14x1.5
G1"
G1-1.1/4"
Nominal Pressure
16
16
16
16
Temperature (°C)
-30 to +80
-30 to +80
-30 to +80
-30 to +80
Temperature Display (°C)
-20 to +60
-20 to +60
-20 to +60
-20 to +60
Protection Class (IP)
66
66
66
66
Nominal Flow Rate (l/h)
200
200
1000
200
Minimum Flow Rate (l/h)
10
10
100
200
Accuracy (%) Better Than
1
1
N/A
1
Repeatability (%)
± 0.2
± 0.2
N/A
± 0.2
Safety Filter Mesh Size (mm)
N/A
N/A
0.400
0.400
Volume of Measuring Chamber (ml)
12.44
12.44
36
100
Flow Sensor
I/Pulse
(ml/pulse)
Hz
(max)
Pulse
Interval
(min)
Pulse
Width
mA
(max)
VDC*
(range)

Double Sensor DFM 8D
0.0125 (12.5)
15
46
20 ms
10
12-24
Single Sensor DFM 8S
0.0125 (12.5)
15
46
20 ms
10
12-24
Single Sensor DFM 20S
0.036 (36)
15
46
20 ms
10
12-24`
Single Sensor DFM 25S
0.100 (100)
15
46
20 ms
10
12-24
Amplitude Range
Equal to Power Supply

Electrical Specs 2 for DFM System


Max Frequency of Input/Output Pulses
25 Hz

Cable Length
7.5m

Power Supply (direct from the vehicle battery)
12VDC to 24VDC

Power Supply Cable
2 x 0.75mm2

Current Load (pulse in/pulse out; open drain output) Max
15mA

Pulse Width (pulse in/pulse out) Min
20ms

Output Operational Voltage Max
48VDC
Device
DFM-BC

Part Number
94476

Registration (in liter)
100,000,000

Input (flow meter connections) adjustable from 0.1ml to 999.9ml
2

Output (for remote device) adjustable from 0.1ml to 9999.9ml
1

Temperature (°C)
-10 to +70

Data Storage
EEPROM

Online Status of the Connected Flow Meters
Yes

Protection Class (IP)
IP66

Contoil DFM-8S

Contoil DFM-8S

Contoil DFM-8D

Contoil DFM-8D

Contoil DFM 20S and DFM 25S

CONTOIL DFM 20S and DFM 25S

Contoil DFM-BC

CONTOIL DFM-BC

Accessories for DFM

Table of Materials used for the Flow Meters


Parts
Materials
DFM 8D, DFM 8EDM, DFM 8S
DFM 20S, DFM 25S

Housing/Measuring Chamber
Brass
46
Housing/Measuring Chamber
Cast Iron
 
Seals
FPM Fluorelastomer
Rotary Piston
Anodized Aluminum

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