Overview

Features

• Stainless steel construction, 304L.
• High precision pressure sensor, accurate +/- 2% absolute.
• No moving parts. Based on MEMS technology.
• Designed to be immune to temperature, shock, and vibration.
• Will not fail if water is present in fuel (unlike capacitive probes).
• Compatible with any tank size or depth to 48”; other options available.
• Long term stability 0.5% per year.
• Operating temperature range -40 to 100 degrees C (Probe Only).
• Compatible with 9 to 14 volts input power.
• Provides linear output of 0.0 to 5.0 volts (empty / full).
• Built in exceptional slosh filtering and optional G filtering.
• Includes five point calibration for empty, ¼, ½, ¾, and full tank.
• Custom calibrations available. Contact factory.
• Alarm output active if <25% full. Contact factory for other alarm options.

Functionality

• Provides liquid level indication between empty and full, for any tank with a minimum height of 6 inches (150mm) and a maximum height of 48 inches (1200mm); other options available.
• The electrical output of the product varies between 0.0 volts and 5.0 volts.
• Asserts “ALARM” when the tank is filled to less than 25% of calibrated capacity.
• Provides active low current sink to 15 ma.
• Includes an electrical slosh filter with an approximate time constant of 40 seconds.
• NOTE: if a tank was quickly evacuated due to a gross rupture or failure, the system may require up to two minutes to fully reflect an “empty” condition.
• Parts included are Liquid Probe with pigtail, Probe Computer Module & 9V connector.

Technical Design

• Microprocessor with RAM & firmware
• Input A / D converter
• Output D / A converter
• Slosh Filter
• G sensor (optional)
• Highly stable voltage supply for probe
• Very low power consumption – approximately 10 milliamperes total consumption, with 7 milliamperes in the fuel probe

Applications

• Fuel level
• Liquid level in many other applications such as agricultural spraying
• Misfueling monitor
• Motorcycles
• Industrial

In The Box

• Stainless steel liquid level probe with wiring harness for attachment to Probe Computer Module.
• Probe Computer Module with five point calibration.
• Power pigtail to Module, with 9V connector for testing.