Vanguard Toxic & Combustible Gas Detector

Brand: United Electric Controls Ltd.

The device is an explosion-proof and intrinsically safe, WirelessHART point gas detector used for the detection and monitoring of harmful gases in air, in order to help maintain a safe environment. A field-interchangeable gas sensor module provides detection of hydrogen sulfide (H2S) or methane (CH4) gas.

Gas measurement readings in parts per million (ppm) or lower explosive limit (%LEL) are communicated along with network and battery status via a local, digital display, and WirelessHART 7.2 communication protocol. The device seamlessly integrates with existing supervisory control and data acquisition (SCADA) or asset management (AMS) systems.

Specifications

Accuracy

  • Hydrogen Sulfide (H₂S) of Sensor: ± 10 ppm
  • Methane (CH₄) of Sensor: ± 2 % LEL or ± 5 % of Indication whichever is greater

Adjustment Type

  • Push Button

Approvals & Certifications

  • ISO 9001

Approvals & Certifications

  • CE
  • ETL
  • Ex
  • IEC 62591
  • IEC Ex

Battery Life

  • 5-Years based on an 8 seconds Update Rate

Communication

  • Antenna
  • Wireless HART 7.2

Current

  • Average Battery Current: < 110 µA Typical (with H₂S Sensor), < 300 µA Typical (with CH₄ Sensor)

Display

  • 128 × 64 Pixel Graphic
  • Base Transmitter: Graphical LCD Display
  • Base Transmitter: Viewable Area 2.25" W × 1.25" H (57.2 × 31.8 mm)

Environmental Protection

  • Explosion-proof
  • Intrinsically Safe
  • IP66
  • NEMA 4X

Frequency

  • Antenna of Base Transmitter: 2.4 GHz, Hazardous Area Antenna

Humidity

  • Storage Humidity of Sensor, Base Transmitter: 0 to 98 % Relative Humidity

Materials of Construction

  • Base Transmitter: 316 Stainless Steel
  • Base Transmitter: Aluminum Alloy, Maximum
  • Base Transmitter: Nickel-Plated Brass
  • Base Transmitter: Tempered Glass

Measuring Range

  • Hydrogen Sulfide (H₂S) of Sensor: 0 to 100 ppm
  • Methane (CH₄) of Sensor: 0 to 100 % Lower Explosive Limit (LEL)

Mounting

  • Base Transmitter: 2" Pipe Mounting Bracket
  • Wall Mounted

Mounting Position

  • Horizontal Pipe Mount
  • Vertical Pipe Mount

Operating Temperature

  • Base Transmitter: -20° to 60° C (-4° to 140° F)
  • Sensor: -20° to 50° C (-4° to 122° F)

Power Requirement

  • 7.2 V Lithium Battery

Repeatability

  • Hydrogen Sulfide (H₂S) of Sensor: ± 10 ppm
  • Methane (CH₄) of Sensor: ± 2 % LEL

Resolution

  • Hydrogen Sulfide (H₂S) of Sensor: 1 ppm
  • Methane (CH₄) of Sensor: 1 % LEL

Response Time

  • Hydrogen Sulfide (H₂S) of Sensor: 60 seconds
  • Methane (CH₄) of Sensor: 30 seconds

Sensor, Probe Type

  • Hydrogen Sulfide (H₂S) of Sensor: Electrochemical
  • Methane (CH₄) of Sensor: Non-Dispersive Infrared Optical

Storage Temperature

  • Sensor: 22° C (72° F)
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