The Acu-Trac® Fuel Level Sensor is a non-contact sensor that is a direct replacement for level senders on tanks with depths up to ≤ 1.5 meters (59 inches). The Fuel Level Sensor offers a choice of outputs (analog current loop; ratiometric voltage; or non-ratiometric voltage). The Fuel Level Sensor has the additional capability of processing real time fuel data and messaging on a J1708 data link for both on vehicle and off vehicle communications. The Fuel level sensor provides the user flexibility to program for tank configuration, digital filtering, sensor mounting offset, gauge drive output full and empty endpoints and communication mode.

• J1708 Messaging: Real time fuel data over the J1708 data link for both on vehicle and off vehicle communication.

• More Accurate: 2 % of tank volume

• More Reliable: Acu-Trac® Fuel Level Sensor is non-contacting. Resistive float sender have a wiper that slides across a resistive strip that with time can wear and cause intermittent or complete loss of the signal.

• Non-Invasive: Acu-Trac® Fuel Level Sensor mounts to the same opening as the resistive float sender, but does not protrude into the tank.

• Digital Filtering: User programmable time constant in digital filtering eliminates errors due to fluids sloshing in mobile tanks.

• Tank Profiling: User programmable tank capacity, depth, shape, and orientation.

• Level or Volumetric Measurements

• Gauge Drive Outputs: User programmable full and empty endpoints.

The Acu-Trac® NEMA6 liquid level transmitter is a non-contact transmitter that is a direct replacement for level senders on tanks with depths up to ≤ 3.0 meters (118 inches). The NEMA6 liquid level transmitter offers a choice of outputs (analog current loop; ratiometric voltage; or non-ratiometric voltage). The NEMA6’s RS-485 bus allows real time processing of fuel data and messaging over the RS-485 bus The RS-485 bus also provides the user flexibility to program the NEMA6 liquid level transmitter for tank configuration, digital filtering, transmitter mounting offset, gauge drive output full and empty endpoints and communication mode.

• KYNAR® Package: Chemically resistant Polyvinylidene Fluoride (PVDF) package.

• More Accurate: 2% of tank volume

• More Reliable: Acu-Trac® NEMA6 liquid level transmitter is non-contacting. Resistive float sender have a wiper that slides across a resistive strip that with time can wear and cause intermittent or complete loss of the signal.

• Non-Invasive: Acu-Trac® NEMA6 liquid level transmitter mounts to the same opening as the resistive float sender, but does not protrude into the tank.

• Digital Filtering: User programmable time constant in digital filtering eliminates errors due to fluids sloshing in mobile tanks.

• Tank Profiling: User programmable strapping tables for unique tank shapes.

• Chemical compatibility: Acu-Trac® NEMA6 liquid level transmitter works with a wide variety of media including diesel, motor oil, hydraulic fluid and black water.

• Self Test/Diagnostics: Power Up Test verifies liquid level transmitter is operating properly and diagnostic messages are sent over the RS-485 bus.

• Real Time Fuel Data: Real time fuel data over the J1708 data link for on vehicle communication.

• RS-485 Messaging: Three types of messages are provided on the RS-485 bus – setup and programming commands, timed data broadcast message, and diagnostic messages.

• NEMA 6 Rating

• CE Mark Class B Rating

The Acu-Trac® Smart 485 family ultrasonic liquid level transducers are designed for continuous level monitoring and liquid level control applications. These non-contact continuous level transducers can monitor tanks or storage containers that have a depth of up to 1.9 meters (75.69 inches) for gasoline and 2.5 meters (98.4 inches) for other media. The Acu-Trac® Smart 485 ultrasonic transducers incorporate a RS-485 bus for real time processing of liquid levels in two messaging formats.
The Smart 485 liquid level transducers offers three electrical outputs for level control in the following forms:

• 4-20 mA Current (12V or 24V input)

• Ratiometric Voltage 0.5 to 9.0 Volt (12V input)

• Non-Ratiometric 0.5 to 9.5 Volt (24 Volt input).

The Smart 485 liquid level transducer is designed with power up self diagnostics and allows the user flexibility through programmable features:

• Tank Configuration Profiling

• Digital Filtering

• Gauge Drive Output (full and empty endpoints)

• Communication Mode.

Note: An Acu-Trac® Smart 485 Configuration Kit is required to program the liquid level transducer.

• Accuracy: 2 % full scale of tank volume

• Reliability: Acu-Trac® Smart 485 liquid level transducers are non-contacting. Resistive float senders have a wiper that slides across a resistive strip that with time can wear out and cause intermittent or complete loss of the signal.

• Non-Invasive: Acu-Trac® Smart 485 mounts to the same opening as the resistive float sender, but does not protrude into the tank.

• Digital Filtering: User programmable time constant in digital filtering eliminates errors due to fluids sloshing in mobile tanks.

• Tank Profiling: User programmable strapping tables for unique tank shapes.

• Chemical compatibility: Acu-Trac® Smart 485 works with a wide variety of media including diesel, gasoline, motor oil, hydraulic fluid, black water, and more.

• Self Test/Diagnostics: Internal Power Up Test verifies transducer is operating properly.

• Continuous Real Time Liquid Level Monitoring: Electrical output and RS-485 messaging data.

• RS-485 Messaging: Two types of messages – programming commands and timed data broadcast messages. (See AT-AN14 for more details)

• NEMA 4 Rating

The Acu-Trac® Smart 485 family ultrasonic liquid level transducers are designed for continuous level monitoring and liquid level control applications. These non-contact continuous level transducers can monitor tanks or storage containers that have a depth of up to 1.9 meters (75.69 inches) for gasoline and 2.5 meters (98.4 inches) for other media.
The Acu-Trac® Smart 485 ultrasonic transducers incorporate a RS-485 bus for real time processing of liquid levels in two messaging formats.
The Smart 485 liquid level transducers offers three electrical outputs for level control in the following forms:

• 4-20 mA Current (12V or 24V input)

• Ratiometric Voltage 0.5 to 9.0 Volt (12V input)

• Non-Ratiometric 0.5 to 9.5 Volt (24 Volt input).

The Smart 485 liquid level transducer is designed with power up self diagnostics and allows the user flexibility through programmable features:

• Tank Configuration Profiling

• Digital Filtering

• Gauge Drive Output (full and empty endpoints)

• Communication Mode.

Note: An Acu-Trac® Smart 485 Configuration Kit is required to program the liquid level transducer.

• Accuracy: 2 % full scale of tank volume

• Reliability: Acu-Trac® Smart 485 liquid level transducers are non-contacting. Resistive float senders have a wiper that slides across a resistive strip that with time can wear out and cause intermittent or complete loss of the signal.

• Non-Invasive: Acu-Trac® Smart 485 mounts to the same opening as the resistive float sender, but does not protrude into the tank.

• Digital Filtering: User programmable time constant in digital filtering eliminates errors due to fluids sloshing in mobile tanks.

• Tank Profiling: User programmable strapping tables for unique tank shapes.

• Chemical compatibility: Acu-Trac® Smart 485 works with a wide variety of media including diesel, gasoline, motor oil, hydraulic fluid, black water, and more.

• Self Test/Diagnostics: Internal Power Up Test verifies transducer is operating properly.

• Continuous Real Time Liquid Level Monitoring: Electrical output and RS-485 messaging data.

• RS-485 Messaging: Two types of messages – programming commands and timed data broadcast messages. (See AT-AN14 for more details)

• NEMA 4 Rating

The Digital Fluid-Trac drum liquid level gauge is a cost competitive non-contact continuous drum liquid level gauge. It is designed for use on vertical drums (≤32 inch depths) storing a wide variety of media such as water, waste water, motor oil, hydraulic fluid and diesel fuel. The Digital Fluid-Trac drum liquid level gauge is NOT intended for use with gasoline. The Digital Fluid-Trac DFT-105 drum liquid level gauge is NOT intended for use with standard 55 gallon drums.

• Easy to install: Digital Fluid-Trac™ drum liquid level gauge has no components to protrude into the drum.

• Standard: Fits NPT openings (2” or ¾”)

• More Accurate: Accurate to 1 gallon with a resolution of +/- 0.5 gallon.

• More Reliable: No components to chemically corrode inside liquid media.

• Multiple Units: New Model DFT-105 can display in either gallons or liters.

• Chemical compatibility: Digital Fluid-Trac™ drum liquid level gauge works with a wide variety of media such as water, waste water, motor oil, hydraulic fluid and diesel fuel.

The Fluid-Trac® 2-wire level sensor is a non-contact liquid level sensor that can be used as a more reliable and accurate replacement for standard 30-240 ohm resistive float sender, reed-switch tube sensors or capacitive tube senders. The FluidTrac® 2-wire level sensor is commonly used to work with fuel gauges in the automotive, marine and construction industries.

The traditional resistive float sender uses a potentiometer attached to a float at the end of an actuating arm to provide a level indication. This technology interfaces with the instrument cluster’s fuel gauge which is typically a coil driven needle gauge. As the resistive float sender’s resistance changes with level, the current through the coil in the gauge changes causing a deflection of the needle. This approach has been used for many years.
Fluid-Trac® uses ultrasonic technology to generate a high frequency sound wave and measure the time for the echo to reflect off of the liquid’s surface and return. The distance from the level sensor to the liquid is calculated based on the speed of sound. The measured distance is converted into a voltage that drives the gauge based on a strapping table contained in the level sensor.

• More Accurate: Distance accuracy of +/- 0.125 inches (1/8th inch)

• More reliable: Fluid-Trac® is non-contacting. Resistive float senders have a wiper that slides across a resistive strip that with time can wear out and cause intermittent or complete loss of the signal

• Non-Invasive: Fluid-Trac® mounts to the same opening as the resistive float sender but does not protrude into the tank.

• Easier to install or Service: Fluid-Trac® has no components to protrude into the fluid that need to be bent for removal.

• Better Design: With a minimum clearance required, access panels or Pye Plates can be eliminated.

• Digital Filtering: Digital filtering eliminates errors due to liquids sloshing in mobile tanks.

• Tank Profiling: Factory programmable strapping tables for unique tank shapes.

• Chemical compatibility: Fluid-Trac® works with a wide variety of media including gasoline, diesel fuel, urea (ADBLUE), oils, hydraulic fluid and black/gray water.

The Fluid-Trac® 3-wire ultrasonic level sensor is a non-contact liquid level sensor that offers a wide variety of input and output options which enables it to interface with many different microprocessor-controlled fuel gauges or digital instrumentation.
The Fluid-Trac® 3-wire level sensor can be factory programmed to have a ratio-metric output to drive 12V fuel electronic gauges (automotive applications).
The Fluid-Trac® 3-wire level sensor can also be factory programmed to provide a non-ratiometric voltage output (0.5 to 4.5 V) for interfacing to control modules, PLC controllers, digital instrumentation, or DAQ systems to indicate tank volume levels.

The traditional resistive float sender uses a potentiometer attached to a float at the end of an actuating arm to provide a level indication. This technology interfaces with the instrument cluster’s fuel gauge which is typically a coil driven needle gauge. As the resistive float sender’s resistance changes with level, the current through the coil in the gauge changes causing a deflection of the needle. This approach has been used for many years.
Fluid-Trac® uses ultrasonic technology to generate a high frequency sound wave and measure the time for the echo to reflect off of the liquid’s surface and return. The distance from the level sensor to the fuel is calculated based on the speed of sound. The measured distance is converted into a voltage that drives the fuel gauge based on a strapping table contained in the level sensor.

• More Accurate: Distance accuracy of +/- 0.125 inches (1/8th inch).

• More Reliable: Fluid-Trac® is non-contacting. Resistive float sender have a wiper that slides across a resistive strip that with time can wear and cause intermittent or complete loss of the signal.

• Non-Invasive: Fluid-Trac® mounts to the same opening as the resistive float sender, but does not protrude into the tank.

• Easier to Install or Service: Fluid-Trac® has no components to protrude into the tank that need to be bent for removal.

• Digital Filtering: Digital filtering eliminates errors due to liquids sloshing in mobile tanks.

• Tank Profiling: Factory programmable strapping tables for unique tank shapes.