Description
🛠️ Product Overview & Technical Datasheet The GE Panametrics XMO2 (Part Number: XMO2-2H-31-S) is an advanced, microprocessor-based paramagnetic oxygen transmitter engineered for reliable, continuous measurement of oxygen concentration in industrial gas streams. Utilizing a unique non-depleting paramagnetic sensing technique, it delivers long-term stability, high accuracy, and fast response times for demanding process control and safety applications.

- Brand: GE Panametrics (Baker Hughes)
- Model / Part Number: XMO2-2H-31-S
- Series: XMO2 Oxygen Transmitter Series
- Product Name: Thermally Stabilized Paramagnetic Oxygen Analyzer
- Place of Origin: United States / Global Manufacturing Facilities
- Physical Condition: Brand New / Factory Sealed or Verified Surplus
- Measurement Principle: Paramagnetic (non-depleting, no consumable sensors)
- Dimensions: 160 mm × 140 mm × 120 mm (approx. compact explosion-proof enclosure)
- Weight: 2.5 kg (approx.)
- Origin Country: USA / Authorized Production Plant
- Power Rating / Supply: 24 VDC Nominal (loop-powered or isolated DC supply, typically 21 to 28 VDC)
📋 First Run Inspection Checklist
- 🔍 Verify physical condition, including the explosion-proof enclosure housing, conduit connections, and process gas inlet/outlet ports, to ensure zero transit damage.
- 🔌 Check all external terminal block wiring, signal output loops, and 24 VDC power connections against the installation manual before energizing.
- ⚡ Confirm correct DC power supply voltage levels and stable polarity (24 VDC) prior to system startup.
- 🛡️ Confirm proper earth grounding of the transmitter housing to mitigate electrical noise and ensure safe operation in hazardous or industrial areas.
- 🌐 Check sample system tubing, flow rates, pressure regulators, and filter elements to ensure clean, conditioned process gas meets specifications.
🔧 Routine Maintenance & Servicing
- 🧰 Periodically inspect process sample lines, fittings, and electrical terminal connections for leaks, tightness, or corrosion.
- 🧽 Clean the transmitter enclosure exterior using a soft, damp cloth; avoid abrasive cleaners or harsh chemical solvents.
- 💾 Perform routine span and zero calibrations using certified calibration gases (e.g., nitrogen zero gas and a known oxygen span mixture) according to operating manuals.
- 🌡️ Monitor local environmental and sample temperature conditions to ensure operating limits remain within specified parameters.
🔍 Troubleshooting & Common Issues
- ⚠️ Transmitter Fails to Power On: Verify 24 VDC input supply voltage levels, loop resistance, and terminal block wiring integrity.
- ⚠️ Erratic or Drifting Oxygen Readings: Check sample gas flow rate, pressure stability, and verify that moisture or condensates are not entering the sensor cavity.
- ⚠️ Calibration Failure: Ensure calibration gases match expected concentrations, check for sample line leaks, and verify sensor thermal stability.
⚠️ Safety Precautions
- 🛑 Installation, calibration, and electrical servicing must be performed strictly by qualified and authorized instrumentation technicians.
- 🔌 Always disconnect external power sources and ensure the area is non-hazardous before opening explosion-proof covers or performing internal wiring work.
- ⚡ Observe standard electrical safety precautions and process hazard protocols when handling oxygen-rich or flammable sample streams.
❓ Frequently Asked Questions (Q&A)
- 💡 Q: What is the primary function of the GE Panametrics XMO2?
A: It provides continuous, precise measurement of oxygen gas concentrations in industrial processes using a non-depleting paramagnetic sensing technique.
- 💡 Q: Does the XMO2 require regular sensor replacements like electrochemical cells?
A: No, the paramagnetic sensing element is non-depleting and does not consume chemical reagents, resulting in a significantly longer operational lifespan with minimal maintenance.
- 💡 Q: How is data output and communication handled?
A: It provides an industry-standard 4–20 mA analog output proportional to oxygen concentration, alongside digital communication capabilities for configuration and monitoring.

