On-Board Aircraft Processing Probe

Overview

Liquid Measurement System’s new fuel gauging probe with on-board processing combines probe and signal conditioner in one piece of hardware with no moving parts.

• Reduces development time
• Works with a variety of fuel tank configurations
• Streamlines mounting and installation

Inputs

• Carbon Fiber Capacitance Probe
• Up to 3 Discrete Open/GND Inputs
  • IBIT Initiate
  • Set High/Low Level

Outputs

• ARINC 429, CANBUS, or Analog Signal
• Up to 3 Discrete Open/GND Outputs
  • Low/High Level
  • Failure Warning
  • IBIT in Progress

Built-In Test

• Self-Test Capability (Startup/Initiated/Continuous)

Certification

• Accuracy to JSSG-2009A Class 2 and AS405D
• Software DO-178C DAL B
  • Outputs/Tank tables customizable through PDIF
• Safety Objectives from AC 25.981-1C
• Environmental conditions from MIL-STD-810
• Electromagnetic Interference compatible with MIL-STD-461
• DO-160G, Section 22 – Lightning Level 3
• MIL-STD-704F 28VDC Input power

Mounting

• D38999/ 13 Pin B Size Connector
• Flange 5” Diameter x 2” Tall (12.7cm x 5cm)
• Mounts through a hole 2” diameter in top or bottom of tank
• Weight: < 3 pounds (1361 grams)
• Aluminum with corrosion protection