Honeywell XNX-AMAV-RHNNN Universal Gas Detector Transmitter

Plant engineers rely on the Honeywell XNX-AMAV-RHNNN transmitter to connect high-temperature millivolt sensors safely across industrial sites. Honeywell designs this flagship unit in the XNX Universal Transmitter family with built-in relay options for rapid emergency shutdowns. Access technical wiring steps inside the official XNX Universal Transmitter Instruction Manual immediately.

Key Features and Value Highlights

• Three integrated alarm and fault relays drive immediate local warning horns and physical shutdown valves.
• Heavy painted aluminum enclosure shields internal processor boards from corrosive marine atmospheres and rain.
• Integrated millivolt personality board connects smoothly to Sensepoint high-temperature gas sensors and standard MPD units.
• Dual HART communication protocol options allow safe remote device calibration without opening housing covers.
• ATEX and IECEx explosion-proof ratings allow safe placement inside high-risk industrial hazard zones.

Model Breakdown

• Honeywell XNX Universal Transmitter Series
• └── XNX-AMAV-RHNNN Specific Part Number Structure
  • ├── Approval: A (ATEX / IECEx Explosion-Proof Certified)
  • ├── Entry Type: M (5 x M25 Threaded Conduit Entries)
  • ├── Material: A (Corrosion-Resistant Painted Aluminum Alloy)
  • ├── Personality: V (Millivolt Input Sensor Wiring Board Interface)
  • ├── Option: R (3 Integrated Fault / Alarm Relay Contacts)
  • ├── Local Interface: H (Local HART Hardware Connection Port)
  • └── Sensor & Range: NNN (No Integrated Sensor Assembly Supplied)

Complete Technical Parameters

• Manufacturer Brand: Honeywell
• Model Number: XNX-AMAV-RHNNN
• Device Type: Universal Gas Transmitter with Relay Board
• Input Voltage Range: 16 to 32 VDC (24 VDC Nominal)
• Power Consumption: 6.5 Watts Maximum (Relay & mV Active)
• Signal Output Signal: 4-20mA Output with HART Digital Communication
• Integrated Relay Contacts: 3 SPDT Relays (2 Alarm, 1 Fault)
• Relay Contact Rating: 5A at 240 VAC / 30 VDC
• Signal Output Linearity: ±0.5% Full Scale Linearity
• Measurement Signal Accuracy: ±1% of Full Scale
• Signal Frequency Response: 10 Hz High-Speed Digital Processing
• Signal Display Resolution: 0.1 mA / 1% Full Scale
• Signal Sensitivity Drift: Under ±1% Scale Per Year
• EMI Shielding Capacity: Industrial Grade Electromagnetic Immunity Ratings
• Operating Temperature Span: -40°C to 65°C (-40°F to 149°F)
• Operating Humidity Span: 0% to 99% Non-Condensing RH
• Ingress Weather Protection: IP66 and NEMA 4X Approved
• Conduit Entry Threads: 5 x M25 Threaded Hub Ports
• Chassis Physical Weight: 15 lbs (6.8 kg)

Summary

• The Honeywell XNX-AMAV-RHNNN transmitter processes critical gas monitoring signals from external millivolt sensors.
• Built-in relay options supply direct local switching controls to boost plant life-safety operations.
• Rugged IP66 aluminum construction protects inner electronics across temperatures down to -40°C.
• High signal linearity of ±0.5% full scale ensures precise reporting for continuous plant monitoring.

Field Installation Instructions

• Bolt the heavy chassis onto a solid mounting structure using the four exterior aluminum lugs.
• Route field signal cables through the five M25 threaded entries using approved cable glands.
• Seal unused M25 conduit ports with explosion-proof metal plugs to preserve hazardous area ratings.
• Connect remote Sensepoint high-temperature millivolt sensors to designated internal terminal strips according to schematics.
• Wire control relays and 4-20mA HART lines directly to your central safety system receiver.
• Verify input power measures strictly between 16 and 32 VDC before closing the cover.

Standard Package Contents

• Original Honeywell XNX-AMAV-RHNNN transmitter body with built-in relay card and HART module.
• Heavy custom foam padding to shield metal components during international freight transportation.
• Express global shipping services available through global carriers FedEx, UPS, and DHL.

Frequently Asked Questions

• What makes this transmitter model different from standard relay-free units?
  • This unit includes three programmable SPDT relays for directly switching external sirens or valves.
• Can technicians mount high-temperature Sensepoint sensors to this unit?
  • Yes, the internal millivolt personality card interfaces directly with high-temperature Sensepoint sensors.
• What contact current rating do the three internal relays support?
  • The SPDT relay contacts switch industrial equipment loads up to 5 Amps at 240 VAC.
• Why does this aluminum transmitter weigh 6.8 kg?
  • The thick cast aluminum housing provides heavy explosion-proof protection for hazardous industrial environments.
• How many cable ports does the transmitter case provide for field wiring?
  • The heavy chassis features five M25 threaded entries to handle multiple power and relay cables.

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