Honeywell XNXXSA2SS Ammonia Sensor Cartridge 200-1000ppm NH3

Honeywell XNXXSA2SS Ammonia Electrochemical Cell Sensor Cartridge

This Honeywell XNXXSA2SS is a high-range ammonia (NH₃) sensor cartridge for industrial safety and emissions monitoring. It uses electrochemical cell technology for reliable gas detection. The cartridge delivers accurate readings from 200 to 1,000 ppm. It suits fixed and portable gas detection systems. Engineers trust this sensor for its robust performance in harsh environments.

Technical Specifications

• Frequency response: Fast T50 and T90 for quick alarm activation.
• Sensitivity: High electrochemical sensitivity to NH₃ with low cross-interference.
• Linearity: Excellent linear output across the full 200–1000 ppm range.
• Resolution: 50 ppm step change provides clear trend visibility.
• Temperature tolerance: Stable from -20°C to 40°C for outdoor and indoor use.
• Environmental endurance: Designed for dust, humidity, and temperature variations.
• Interference rejection: Minimal response to common industrial gases (CO, H₂S, SO₂).

Installation & Compatibility

Installation: The cartridge fits standard Honeywell gas detector bases. Use a quick twist-lock mechanism for secure mounting. Ensure the O-ring is clean before insertion. Allow 24 hours for sensor stabilization after power-up.

Compatibility: Direct replacement for Modicon Quantum systems and Honeywell fixed-point gas monitors. Works with analogue 4–20 mA and digital Modbus interfaces.

Diagnostic capability: Built-in self-test checks sensor health and remaining life. Outputs a fault signal if the element degrades. Supports remote calibration verification.

Calibration & Maintenance

Calibrate using span gas between 30% and 70% of the selected range. The default cal point is 300 ppm for a 1000 ppm range. Use a certified NH₃ mixture for best accuracy. The sensor retains calibration data during power cycles. Maintenance requires only periodic bump testing and zero-air adjustment. Cartridge replacement takes less than 2 minutes without tools.

Certifications & Packaging

• Certification: CE marked, ATEX compliant for Zone 2 hazardous areas.
• Packaging: Each cartridge in anti-static bag with desiccant.
• Included: Sensor cartridge, installation O-ring, and calibration certificate.
• Warranty: 12-month limited warranty covering manufacturing defects.

Typical Applications

• Refrigeration plant ammonia leak detection
• Fertilizer production and storage facilities
• Cold storage warehouses and food processing
• Chemical dosing and scrubber systems
• Engine test cells and research laboratories

Frequently Asked Questions

Q: Can this sensor detect below 30 ppm?
A: No, the lower detect limit is 30 ppm. Use a low-range sensor for sub-ppm levels.

Q: How often should I calibrate?
A: Every 3–6 months, depending on application criticality and environmental exposure.

Q: Is the sensor polarity sensitive?
A: No, the electrochemical cell is non-polarized, but observe correct wiring for the transmitter.

Q: Does temperature affect readings?
A: The internal compensation minimizes drift; allow 30 minutes warm-up for stable output.

Q: What shipping options are available?
A: We ship via FedEx, UPS, and DHL – express delivery worldwide.

Why Buy From Oiltech Controls?

• Over 15 years supplying industrial automation spare parts.
• Global shipment with tracking and insurance included.
• Tested industrial surplus and refurbished options available.
• 12-month warranty on all sensor cartridges.
• Technical verification before dispatch – every unit is checked.
• Support for obsolete control systems including Modicon Quantum.

For inquiries: info@oiltechcontrols.com or +86 158 8020 0923 (WhatsApp)

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