XNX-AMAV-NHNNN Gas Detector – Honeywell Universal Transmitter

Product Insight – XNX-AMAV-NHNNN

The XNX-AMAV-NHNNN from Honeywell is a versatile universal transmitter built for demanding gas detection tasks. It features a lightweight marine-grade aluminum enclosure with a durable 5-coat painted finish. This model supports HART® over 4-20mA and includes a local HART® interface port for easy on-site configuration. It is certified to ATEX/IECEx standards, making it suitable for hazardous areas. The unit is pre-configured for Sensepoint High Temperature sensors and offers flexible mounting options.

Technical Data – At a Glance

• Brand: Honeywell
• Model: XNX-AMAV-NHNNN
• Series: XNX Universal Transmitter
• Output Signal: HART® over 3-wire 4-20mA (sink, source, isolated)
• Optional Protocol: Modbus RTU over RS-485
• Enclosure Material: Marine-grade aluminum alloy
• Entry Type: 4 x M25 cable ports
• Operating Temp: -40°C to +65°C
• IP Rating: IP66
• Weight: 2.27 kg (Aluminum)

Key Performance & Environmental Specs

• Measurement Compatibility: mV interface for MPD, Sensepoint, and Model 705 sensors.
• HART Compliance: NAMUR NE43 compliant for reliable 4-20mA signals.
• Temperature Range: -40°C to +65°C (transmitter), with sensor-specific variations.
• Humidity & Pressure: 0-99% RH (non-condensing) and 80-120 kPa.
• Air Speed: Withstands up to 6 m/sec.
• Real-Time Clock: 3-year unpowered battery life at storage temp.

Installation & Mounting Guide

• Standard Mount: Integral lugs for wall or pipe mounting.
• Optional Mounts: Ceiling bracket available.
• Cable Entries: 5 ports (2 right, 2 left, 1 bottom) – M25 size.
• Orientation: Flexible placement with multiple entry points.
• Tool Requirement: Magnetic wand for local interface operation.

Maintenance & Debugging Convenience

• Local UI: Custom backlit LCD with magnetic wand control.
• HART Handheld: Optional IS port for advanced diagnostics.
• Relay Status: 3 Form C SPCO relays (2 alarm, 1 fault) – 5A @ 250VAC.
• Remote Reset: Silence alarms remotely.
• Modbus Setup: RS-485 with switchable 120Ω termination resistor.

Compatibility & System Integration

• Sensors: MPD, Sensepoint, HT, and PPM variants.
• Control Systems: Integrates with Modicon Quantum and other PLC/DCS.
• Fieldbus: Foundation Fieldbus H1 (mutually exclusive with relays/Modbus).
• Output Types: 4-20mA sink/source/isolated, or Modbus RTU.

Certifications & Approvals

• ATEX/IECEx certified for explosive atmospheres.
• IP66 weatherproof enclosure.
• NAMUR NE43 compliant signal standard.
• CE marked for European conformity.

What’s in the Box?

• XNX-AMAV-NHNNN transmitter unit.
• Mounting lugs and hardware.
• Magnetic wand for UI operation.
• Quick-start guide and manual.
• Calibration certificate (optional).

Shipping & Warranty Information

• Warranty: 12 months against manufacturing defects.
• Dispatch Time: 24-28 hours after order confirmation.
• Carriers: FedEx, UPS, DHL express available.

Oiltech Controls’ Insight – Why This Model?

• Ideal for high-temperature gas detection (Sensepoint HT).
• Aluminum body provides lightweight durability in corrosive zones.
• HART and Modbus options give flexibility for legacy or modern systems.
• IP66 rating ensures reliability in outdoor or washdown areas.
• Magnetic interface reduces need for hot-work permits during adjustment.

Typical Applications

• Oil & gas refineries – flammable/toxic gas monitoring.
• Chemical plants – high-temperature sensor integration.
• Pharmaceutical production – cleanroom gas detection.
• Wastewater treatment – H2S or CO2 monitoring.

Professional FAQ – Selection & Experience

• Q: Can this transmitter work with a catalytic bead sensor?
  A: No, it is designed for milli-Volt sensors like MPD and Sensepoint. For catalytic sensors, check XNX catalytic variants.
• Q: What is the advantage of choosing the aluminum version over stainless?
  A: Aluminum is lighter (2.27 kg) and cost-effective for non-corrosive environments. Stainless (5 kg) is better for offshore or highly corrosive zones.
• Q: How do I choose between HART, Modbus, or Foundation Fieldbus?
  A: For simple 4-20mA with digital overlay, choose HART. For older RS-485 networks, select Modbus. For new DCS with Fieldbus, choose Foundation (but note relay/Modbus are not available).
• Q: Is the local HART port intrinsically safe?
  A: Yes, the optional HART handheld with IS port is safe for hazardous area use.
• Q: What should I check if the LCD is not responding?
  A: Verify the magnetic wand is functioning and the ambient temperature is within -40°C to +65°C. Also, ensure the RTC battery is not depleted (3-year life).

Why Buy From Oiltech Controls?

• Over 15 years of expertise in industrial automation spares.
• Reliable global shipping – we handle logistics seamlessly.
• Thoroughly tested surplus and refurbished inventory.
• Every unit gets technical verification before dispatch.
• We support obsolete control systems, including legacy PLCs.
• 12-month warranty gives you peace of mind.

Contact Information
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

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