Diesel Return Flow Sensor RFS400
Common Rail diesel injection systems become more and more advanced nowadays. In order to detect a malfunction in this system, measurements have to be much more accurate. Introduction of pressurized return flow systems makes measuring the return flow using open "jars" impossible.
The Diesel Return Flow Sensor RFS400 is a closed system four channel flow sensor that can be placed in the return flow circuit of a Common Rail diesel engine. Connected to the Automotive Test Scope ATS5004D with ATIS software, the small return flows of four cylinders can be measured simultaneously and accurately. A graph for each cylinder shows the size of the fuel flow. Due to the closed system, no diesel is spilled, keeping the work area clean. It also makes it possible to perform measurements while driving the vehicle.
Order code: TP-RFS400
Price: € 550.30
The table below shows detailed specifications of the Diesel Return Flow Sensor RFS400.
|Flow range||0.2 ml/min to 145 ml/min|
|Output||4.5 V = 145 ml/min, 0.2V = 0.2 ml/min|
|Operating fuel pressure||1 to 10 bar|
|Connection||2 x 4 mm banana socket per channel|
|Connection||fixed cable with isolated alligator clips|
|Voltage||9 to 30 V DC|
|Current||20 mA @ 12 V|
|Power cable length||100 cm|
|Fuel hose length||42 cm|
|Operating temperature||-10 to 80 °C|
|Suitable for||Bosch, Siemens, Denso and Delphi CR systems|
The Diesel Return Flow Sensor RFS400 is delivered with:
|1||Diesel Return Flow Sensor RFS400|
| ||various adapters to connect to most common injection systems|
Diesel return flow measurementWith a lab scope and an Diesel Return Flow Sensor RFS400 the return flow from common rail diesel injectors is measured. The signals from the Diesel Return Flow Sensor RFS400 are shown and can be downloaded. To help determining whether the injectors are functioning correctly, different deviations from the example signal are mentioned along with possible causes.
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Exhausted Mercedes E-classA Mercedes E-class was hard to start, flattened the battery and left the owner stranded. The first garage is was sent to concluded that the immobilizer ECU had forgotten the key codes. The vehicle was then sent to a garage with AECS technical support and using an automotive diagnostic oscilloscope and RFS400 return flow sensor the found the real cause of the problem.
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