Rotary Electronics Pvt Ltd.

1Rotary Electronics Pvt Ltd.

Water in Fuel Sensor

Water in Fuel Sensor

2Rotary Electronics Pvt Ltd.

PrincipleThe Water In Fuel sensor (WIF Sensor) is used to detect water in the fuel filter.Water sensor fixed on the bottom side of the filter bowl. The water molecules present in the fuel is collected in the bottom of the filter bowl. When the water level reaches a pre defined level, the resistivity changes. This change of resistivity is sensed by ECU and ECU generates an alarm and sends appropriate signals to other circuitry.

Water in Fuel Sensor

3Rotary Electronics Pvt Ltd.

Bill of MaterialsSl. No. Description Qty

1 Housing 12 Printed Circuit Board 13 Wire 24 Electrodes 25 Potting Resin + Hardener 10 g6 Connector 17 Sealing Washer 18 Sleeve 1

Water in Fuel Sensor

4Rotary Electronics Pvt Ltd.

1. Housing

Material Poly Amide 6-6, 30% Glass Reinforced

Colour Black

Water in Fuel Sensor

5Rotary Electronics Pvt Ltd.

2. PCB Assembly

PCB Material FR4

No. Of Layers 2

Copper Thickness 35 microns

PCB Thickness 1.6mm

Finish HAL

Resistor 200 kΩ, Tol. 1%

Water in Fuel Sensor

6Rotary Electronics Pvt Ltd.

3. Wire

Conductor Material Tinned Copper

No. of Strands 19

Cross Section Area 0.5 sq. mm

Sheath Colour Black

Water in Fuel Sensor

7Rotary Electronics Pvt Ltd.

4. Electrodes

Material Brass

Finish Sn Plated 6 – 8 microns

Water in Fuel Sensor

8Rotary Electronics Pvt Ltd.

5. Potting Resin

Resin PL 515

Hardener G27

Mixing Ratio 100 : 15 by weight

Colour Black

Make Elantas Italia SRL

Water in Fuel Sensor

9Rotary Electronics Pvt Ltd.

6. Connector

Description Part No. Qty MakeCONNECTOR 7282885130 1 YAZAKITERMINAL 7114441602 2 YAZAKISEAL RH TYPE M 7158316780 2 YAZAKI

Water in Fuel Sensor

10Rotary Electronics Pvt Ltd.

7. Sealing Washer

Material HNBR

Colour Red

Water in Fuel Sensor

11Rotary Electronics Pvt Ltd.

8. Sleeve

Material PVC

Colour Green

Length 110 mm

Water in Fuel Sensor

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Validation Tests

Mechanical TestsVibration (Random, Sinusoidal)

Sealing (internal / External)

Impact

Torque

Water in Fuel Sensor

13Rotary Electronics Pvt Ltd.

Validation Tests

Physical TestsHigh Temperature

Storage

Thermal Shock

Temperature cycling

Water in Fuel Sensor

14Rotary Electronics Pvt Ltd.

Validation Tests

Environmental TestsSalt Spray

Humidity

Resistance to Water

Resistance to fluids

Water in Fuel Sensor

15Rotary Electronics Pvt Ltd.

Validation Tests

Life TestsEndurance

Water in Fuel Sensor

16Rotary Electronics Pvt Ltd.