Honeywell XNX-AMAE-RNNNN Transmitter – Toxic/O2 HART Relays ATEX

Honeywell XNX-AMAE-RNNNN – Universal Transmitter for Toxic & Oxygen Sensors

Designed for toxic and oxygen detection. The XNX-AMAE-RNNNN combines a common platform with modular I/O. Supports electrochemical cartridges via built-in IS barrier. Offers HART® over 4-20mA and 3 fault/alarm relays.

Oiltech Controls’s Insight

• This transmitter excels in retrofit projects. Its aluminium housing (painted) reduces weight while maintaining ATEX/IECEx protection.
• Personality ‘E’ includes an intrinsic safety barrier – simplifies wiring for toxic/O2 sensors.
• HART EDDL software delivers at-a-glance device health – cuts troubleshooting time.
• 4 x M25 entries allow flexible cable routing in crowded panels.

What Equipment Does It Fit?

• Honeywell XNX toxic sensors (CO, H2S, NH3, Cl2, etc.)
• Honeywell XNX oxygen sensors (O2)
• Any PLC or DCS accepting 4-20mA with HART® (e.g., Modicon Quantum, Siemens, AB)
• Standalone Honeywell or third-party gas monitoring controllers

Technical Specifications – At a Glance

• Model: XNX-AMAE-RNNNN
• Output: HART® over 4-20mA (3 relays included)
• Approvals: ATEX, IECEx, INMETRO (Zone 1/2)
• Enclosure: Painted aluminium, 4 x M25 entries
• Personality: E – for electrochemical cartridges with IS barrier
• Sensor range: None supplied (order toxic/O2 cartridges separately)
• Weight: ~2.5 kg (approx.)
• Temperature: -20°C to +55°C (typical)
• Humidity: 0-90% RH non-condensing
• Response (T90): < 15 s (sensor dependent)

Installation, Calibration & Maintenance

• Mount via M25 entries – wall or pipe brackets (not included)
• Wire 4-20 mA loop; HART® provides remote configuration
• Calibration: magnetic wand or HART® handheld – no need to open enclosure
• Diagnostics: continuous self-test with fault relay indication
• Sensor replacement: plug-in cartridge design, no rewiring

5 Expert FAQ – Selection & Practical Advice

• Which sensors work with this XNX-AMAE-RNNNN?

  Only Honeywell electrochemical cartridges for toxic gases (CO, H2S, SO2, NO2, Cl2, etc.) and O2. Do not use catalytic or infrared sensors with this personality.

• How do I choose between aluminium and stainless steel?

  Aluminium (this model) is lighter and cost-effective for indoor or mild environments. For offshore or corrosive areas, choose 316SS (e.g., XNX-AMSV).

• Can I add HART locally later?

  No, this unit has “N” for local HART – no option installed. Use a HART communicator or DCS over the 4-20mA loop for remote access.

• What relay functions are available?

  3 relays: programmable for alarm, fault, or warning. Default: high alarm, low alarm, fault. You can reconfigure via HART.

• Is this transmitter compatible with Modbus?

  Not directly. Use a HART-to-Modbus gateway (e.g., MTL or Pepperl+Fuchs) to integrate with Modbus networks.

Typical Applications – Where to Use

• Chemical plants – toxic gas leak detection
• Water/wastewater – chlorine and O2 monitoring
• Pharmaceutical – solvent and O2 deficiency
• Food & beverage – CO2 or O2 control
• Mining – diesel exhaust (NO2/CO)

Shipping, Warranty & Support

• Shipping: FedEx, UPS, DHL – dispatched within 24-28 hours.
• Warranty: 12 months against manufacturing defects.
• Technical verification: Each unit is tested before shipment.

Why Choose Oiltech Controls?

• Over 15 years supplying industrial automation spares
• Global delivery with full tracking
• Tested surplus and refurbished options available
• 12-month warranty on all products
• Pre-shipment technical checks by engineers
• Expert support for obsolete control systems – including Modicon Quantum and others

Contact:
info@oiltechcontrols.com
|
+86 158 8020 0923

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