Product details
Product Brief
Honeywell XNX-UTSE-NHNNN is a universal transmitter for toxic and oxygen sensors. This device delivers reliable gas detection in harsh industrial environments. It features a 4-20mA output with HART® protocol and a local HART® interface port. The rugged painted 316 stainless steel housing ensures long service life. It operates in temperatures from -40ºC to +65ºC and handles 0-99%RH humidity. This model includes UL/CSA approval for North American markets. It comes with three ¾” NPT conduit entries for flexible installation.
Technical Specifications
- Brand: Honeywell Analytics
- Model: XNX-UTSE-NHNNN
- Series: XNX Universal Transmitter
- Measurement Range: Depends on plugged electrochemical sensor (toxic/O2 cartridges).
- Frequency Response: Real-time continuous monitoring.
- Sensitivity: High sensitivity to targeted gases (sensor specific).
- Linearity: Excellent linearity across full sensor range.
- Resolution: Determined by the installed electrochemical cartridge.
- Temperature Range: -40°C to +65°C (operating).
- Storage Temperature: -40°C to +75°C.
- Environmental Tolerance: 0-99% RH non-condensing, 90-110kPa pressure.
- Immunity: Built-in IS barrier and adaptor for electrochemical sensors.
- Enclosure Material: Painted 316 stainless steel.
- Conduit Entries: 3 x ¾” NPT.
- Approvals: UL and CSA certified.
- Output: HART® over 4-20mA, local HART port.
- Weight: 5 kg.
- Mounting: Surface mount with integral lugs. Optional pipe kit (Ø100-150mm) or ceiling bracket.
Installation Guide
- Surface mount via integral mounting lugs (standard).
- Use optional pipe mounting kit for Ø100mm to 150mm pipe.
- Ceiling mounting bracket available as an accessory.
- Use ¾” NPT conduit entries for wiring.
- Keep within -40°C to +65°C ambient range.
- Avoid condensing humidity and pressure extremes.
Commissioning & Maintenance
- Local HART® interface enables easy configuration.
- Quick sensor cartridge swap without tools.
- Built-in IS barrier ensures safe sensor connection.
- Routine checks via 4-20mA or HART® digital readout.
- Stainless steel housing resists corrosion and damage.
Compatibility Notes
- Designed for Honeywell XNX toxic and oxygen sensor cartridges.
- Includes interface for electrochemical cartridges (Type E).
- Works with any controller accepting 4-20mA or HART®.
- Not compatible with catalytic bead or infrared sensors.
Certifications & Approvals
- UL listed for US and Canada (Approval code U).
- CSA certified for North American hazardous locations.
- Integral IS barrier for intrinsic safety with sensors.
- Meets NEMA/IP environmental sealing (316SS enclosure).
Package Contents
- 1 x XNX-UTSE-NHNNN Transmitter unit.
- 1 x Local HART® interface port cover.
- 1 x Mounting hardware kit (surface lugs).
- No sensor included (order separately).
- Quick start guide (digital download available).
Warranty & Shipping
- Warranty: 12 months from date of shipment.
- Shipping: 12-24 hours dispatch for in-stock units.
- Carriers: FedEx, UPS, DHL available (customer preference).
Expert Review
This transmitter stands out for its rugged stainless build and flexible HART integration. The local interface simplifies setup, while the IS barrier adds safety for toxic gas monitoring. It’s a reliable choice for demanding industrial sites, offering clear communication and easy sensor replacement.
Manager’s Insight
For plant managers, the XNX-UTSE-NHNNN reduces downtime with modular sensor cartridges. The UL/CSA approval ensures regulatory compliance. The wide temperature range and corrosion-resistant housing lower total cost of ownership in harsh areas like chemical plants or refineries.
Supported Devices & Applications
- Applications: Oil & gas platforms, chemical processing, wastewater treatment, mining, and confined space entry.
- Compatible devices: Any PLC, DCS, or SCADA with 4-20mA or HART® input.
- Sensor types: Toxic gas (CO, H2S, NH3, etc.) and oxygen (O2) electrochemical cartridges.
Frequently Asked Questions
- Does this unit include a sensor?
No. The “NNN” in the model means no sensor included. Order cartridges separately.
- Can I use this with a 2-wire loop?
Yes, it supports 4-20mA loop power with HART® communication.
- Is the housing suitable for marine environments?
Yes, 316 stainless steel resists salt spray and corrosion.
- What is the local HART port for?
It allows direct connection to a communicator for configuration without opening the enclosure.
- How do I mount it on a pipe?
Use the optional pipe mounting kit (sold separately) for Ø100-150mm pipes.
Selection Guide
- Select sensor cartridge based on target gas and range.
- Confirm ambient temperature and humidity meet specs.
- Choose mounting option: surface, pipe, or ceiling.
- Check compatibility with your existing control system (4-20mA or HART®).
- For harsh outdoor use, this 316SS version is ideal.
For inquiries, contact us: sales@powergearx.com or +86 18030005825 (WhatsApp).
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