OEM Accuracy's 5V CNG Resistive Gas Pressure Gauge for Auto Gas Systems Factories, Factory

This CNG Pressure Gauge (Sensor) is a critical component in Compressed Natural Gas (CNG) vehicle systems, designed to monitor the pressure within the onboard gas storage cylinder and high-pressure pipelines.

The gauge not only provides a direct visual indication of the gas pressure but also converts this pressure into an electrical signal. This signal is then transmitted to the fuel switch control panel inside the driver's cabin, enabling accurate monitoring of the remaining natural gas volume.

Product Description

Product Specifications

Sensor Type Photoelectric
Overpressure 520 Bar
Burst Pressure 1000 Bar
Test Pressure 400 Bar
Working Pressure 200 Bar
Leak Rate ≤0.005%
Accuracy 1.6
Durability ≥80000 times
Thread 1/4 BSP, M14*1.5
Waterproof Rating IP65
Connection Radial
Operating Temperature -30℃ - 100℃
Power Supply Voltage 12V/5V

Product Size

Pressure Gauge Size Diagram

Product Features

Pressure Sensing

The gauge uses a sensitive element (such as a Bourdon tube made of Phosphor Bronze Qsn6.5-0.1 or Stainless Steel SUS316L) that deforms elastically under pressure 1, 9.

Signal Conversion

This mechanical deformation is converted into an electrical signal via a Hall magnetic induction circuit, known for its high precision, consistency, and long lifespan.

Wiring

Typically features three wires: Red (Power +), Black (Ground -), Yellow (Signal Output).

Display & Monitoring

The primary display shows pressure directly on the dial. The electrical output signal connects to a compatible dashboard switch (e.g., indicator light or digital display type), providing the driver with real-time information on gas reserves.

Application

Installed on CNG vehicles between the gas cylinder and the pressure regulator.

Function

Essential for safe operation and efficient fuel management in CNG-powered automobiles and taxis.

Frequently Asked Questions (FAQ)

Q: What type of sensor is used in this pressure gauge?

This pressure gauge utilizes a high-precision Photoelectric sensor coupled with a Hall magnetic induction circuit for accurate signal conversion.

Q: What are the primary working pressure and durability ratings?

The gauge is designed for a working pressure of 200 Bar (with a burst pressure rating up to 1000 Bar) and has a durability rating of ≥80,000 operations.

Q: What is the operating temperature range and waterproof rating?

It operates reliably within a temperature range of -30℃ to 100℃ and carries an IP65 waterproof rating for effective protection against environmental elements.

Q: How is the wiring configured for installation?

The unit comes with a standard three-wire configuration: Red for Power (+), Black for Ground (-), and Yellow for Signal Output.

Q: What thread connection types are available?

It supports 1/4 BSP and M14*1.5 thread specifications with a radial connection orientation.

Q: Where is this pressure gauge typically installed?

It is primarily installed on CNG-powered vehicles and taxis between the gas cylinder and the pressure regulator for fuel monitoring and safe operation.

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