XNX-AMSV-RNCB1 Universal Transmitter by Honeywell

Reliable gas detection for demanding industrial environments. The XNX-AMSV-RNCB1 offers HART over 4-20mA, 3 fault/alarm relays, and a rugged painted 316SS enclosure. It comes with an MPD catalytic sensor (0-100% LEL) for combustible gas monitoring.

Product Overview

• Manufacturer: Honeywell
• Model: XNX-AMSV-RNCB1
• Type: Universal Transmitter with HART over 4-20mA output
• Approval: ATEX/IECEx/INMETRO (Zone 1, 2, 21, 22)
• Enclosure: Painted 316 Stainless Steel, 4 x M25 cable entries
• Sensor: MPD catalytic bead, 0-100% LEL (combustible gases)
• Output: HART® digital communication over analog 4-20mA
• Relays: 3 programmable fault/alarm relays
• Weight: 5 kg

Technical Data

• Measurement Range: 0–100% LEL (combustible gases)
• Frequency Response: T90 < 30 seconds (typical)
• Sensitivity: High sensitivity to methane, propane, and other hydrocarbons
• Linearity: ±5% of full scale (typical)
• Resolution: 1% LEL (digital display)
• Temperature Range: -40°C to +65°C (operation)
• Environmental Tolerance: IP66/67, humidity 0–95% RH (non-condensing)
• Interference Immunity: Excellent EMI/RFI rejection (EN 50270)

Installation Guide

• Use M25 rated cable glands (4 entries provided).
• Mount on a flat vertical surface, sensor pointing downward.
• Ensure adequate clearance for sensor replacement.
• Use shielded twisted-pair cable for 4-20mA loop.
• Ground the enclosure to minimize electrical noise.
• Follow ATEX/IECEx installation drawings (supplied in manual).

Commissioning & Maintenance

• Auto-calibration via magnetic switches (no need to open enclosure).
• One-person calibration with HART communicator or handheld tool.
• Diagnostic self-test on power-up and every 24 hours.
• Sensor replacement takes less than 5 minutes.
• Clear LED status indicators (green/amber/red).
• Remote access to fault logs via HART.

Compatibility

• Gas Types: Methane, propane, butane, hydrogen, and most hydrocarbons.
• Systems: Any PLC, DCS, or SCADA with 4-20mA input.
• HART: Compatible with HART 5, 6, and 7 handhelds or multiplexers.
• Works with MPD, Sensepoint, and Model 705 HT/PPM sensors (personality V).

Certifications

• ATEX: II 2G Ex db IIC T4 Gb (gas) / II 2D Ex tb IIIC T135°C Db (dust)
• IECEx: Ex db IIC T4 Gb / Ex tb IIIC T135°C Db
• INMETRO: Approved for Brazilian hazardous areas.
• Marine: DNV GL type approved (optional).

Package Contents

• XNX-AMSV-RNCB1 transmitter assembly
• MPD catalytic sensor (0-100% LEL) pre-installed
• Mounting bracket kit with stainless steel screws
• Cable glands (4 x M25, stainless steel)
• Quick start guide and CD manual
• Calibration test certificate

Warranty & Shipping

• Warranty: 12 months against manufacturing defects.
• Dispatch: 12–24 hours after order confirmation.
• Carriers: FedEx, UPS, or DHL (express shipping).

Expert Review

“The XNX-AMSV-RNCB1 is a workhorse for oil & gas. The painted 316SS withstands offshore corrosion. HART over 4-20mA simplifies troubleshooting. MPD sensor responds fast to methane leaks. Relays offer flexible alarm logic. A reliable choice for SIL 2 environments.” – Senior Instrument Engineer

Manager’s Insight

“We deploy this transmitter across 15 plants. Its magnetic interface saves us 40% calibration time. The 4 x M25 entries reduce junction box costs. With ATEX and IECEx, we comply globally. The 12-hour dispatch from PowergearX keeps our projects on schedule.” – Plant Operations Manager

Suitable Devices & Applications

• Devices: PLCs, DCS, SCADA, HART handhelds, gas control panels.
• Applications: Offshore platforms, refineries, chemical plants, gas storage, wastewater treatment, and paint booths.
• Ideal for LEL monitoring in Zone 1, 2, 21, and 22 areas.

Frequently Asked Questions

Q: Does this unit include a sensor?

A: Yes. It comes with the MPD catalytic sensor 0-100% LEL pre-installed.

Q: Can I use this with a non-HART system?

A: Yes. The 4-20mA analog output works with any standard input.

Q: What is the temperature limit for the sensor?

A: The sensor operates from -40°C to +65°C.

Q: Is the relay option programmable?

A: Yes. All 3 relays are fully programmable for alarm or fault conditions.

Q: Do I need extra cable glands?

A: No. Four M25 stainless steel glands are included in the package.

Q: How do I calibrate without opening the housing?

A: Use the magnetic wand (included) to navigate the menu through the glass window.

Q: Does it support MODBUS?

A: No. It uses HART protocol over 4-20mA. For MODBUS, check other XNX variants.

Selection Guide

• For methane detection in pipelines → Choose this model (0-100% LEL).
• For toxic gas (ppm) → Select the XNX version with electrochemical sensor.
• For extreme cold climates → The -40°C rating fits Arctic applications.
• For SIL 2 requirement → This transmitter meets SIL 2 capability (documented).
• For offshore use → Painted 316SS and IP66/67 are ideal.
• If you need local HART display → Choose variant with “H” option (not this one).

Contact & Ordering

Sales & Technical Support

Email: sales@powergearx.com
WhatsApp: +86 18030005825

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