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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OFFICE HOURS
We will be closed on May 24th and May 27th, 2019 in observation of Memorial Day.
We will open again on Tuesday May 28th, 2019
Remember our troops in your prayers as they keep us safe on this Memorial Day.
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Aquametro 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 |
|||||
| 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-8D
Contoil DFM 20S and DFM 25S
Contoil DFM-BC
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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