4description, 5operation, Tank level sensing processor and sensors – B&G H2000 Pilot *DISCONTINUED* User Manual

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Tank Level Sensing Processor and Sensors

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4

Description

The Tank Level Sensing Processor and Sensors from B&G offers a choice of 5-bolt tank insert
fittings in either brass, stainless steel or marine-grade aluminium, and can be mounted in a tank-
top position or on the tank side if space is limited. Using SWAGELOK fittings the tank unit is
connected to a Sensor Module by 7.5mm (¼ inch) diameter tubing. A length of 7.5mm (¼ inch)
diameter Nylon tube extends inside the tank from the tank fitting to the bottom of the tank and is
kept immersed by a stainless steel weight attached to its lower end.

The Sensor Module is connected through a Tank Level Sensing Processor and is connected to
the boat’s Hydra/Hercules Full Function Displays via the Fastnet databus cable.

Tank Level Sensing Processor

SENSOR

MODULE

12v Power Supply for Tank Sensor

B&G FastNet Network Bus

Tank Level Sensing

Processor

Tank

Contents

Sensor

Pressure

Transducer

NMEA

RS232 to PC

5

Operation

The system calculates the contents of the tank by measuring the pressure at the bottom of the
tank as the fluid level changes.

A small air compressor, built into the sensor module, is automatically activated for
approximately 8 seconds every 10 minutes. This purges the air in the hose between the
sensor module and the bottom of the tank.

A pressure transducer inside the sensor module senses the pressure and converts it to an
electrical signal, which is transmitted to the B&G Tank Level Sensing Processor (TLSP), read
by the software and displayed to the user via the FFD.

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