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How to Detect the Fault? 

Fault Description 

Troubleshooting Steps 

No Power 

When the Fuel sensor is connected to the power source, it does not receive any power 

1. Check that incoming wires from the Power source are properly secured both at the connector harness and at the Galooli DB. 

1. Check if the cables have continuity at both ends. 

1. Make sure the power supply is 12 volts DC. 

No Communication 

When the Fuel sensor is connected to the communication Terminal block, it does not communicate with the Elara unit 

1. Check the cables have continuity at both ends. 

1. Make sure the power supply is 12 volts. 

1. Check termination of the RS485 communication is properly done. 

No communication  

The fuel sensor is receiving power, but the unit is not connected to Elara or K2 

Connect your serial converter to the ports for RS 485 B and pin 4 for RS485 A 

Read all configurations communication protocol  should be set at  

Device ID :15 

Baudrate :19200 

Open the Holykell configuration Tab Set Baudrate at 19200 

Id Scan the fuel sensor and if it lands on a different ID from 15. Click on next Icon and set the default ID and Baudrate as 15 and 19200 respectively.  

If no communication is present 

Open the Holykell configuration Tab Set Baudrate at 9600 

Id Scan the fuel sensor and if it lands on a different ID from 15. Click on next icon and set the default ID and Baudrate as 15 and 19200 respectively.  

The device is communicating but giving the wrong data 

The Fuel sensor should be taken out of the fuel tank and held straight on a flat surface. 

Ensure the tip of the fuel sensor is 2cm from the base of the fuel’s sensor securing rod 

Read all configurations from the Holykell fuel sensor calibration tab on the Services center. 

Once done perform the Zero calibration on the fuel sensor.