The EMS 1402 Oxygen Combustion Efficiency System
Design and Performance: 
- In-Situ
- Process Gas: ambient up to 790°C (1400°F)
- Response time: Cell <100 milliseconds, Amplifier output <1 second, System 63% <18 seconds, System 95%<30 seconds
- Calibration Error: <0.5%O2 over all
- 2% O2 +/- 0.1%
- Cal Drift <0.5% O2
System Description:
Each Model 1402 Oxygen analyzer control NEMA 12 enclosure contains an integral mounted Digital display, a reference air regulator, manual calibration span and zero controls, 4-20mA output. The 2100 probe standard material is 304 S.S. (316 option available).
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How It Works:
The Model 2100 probe extends the cell into the gas stream where the flue gas diffuses to it. The cell is maintained at 815°C and the cell emf is sent to the control unit to be processed and converted to % oxygen.
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Features:
- Pre-Tested - Each system is pre-tested and all gas plumbing is check before shipment. Connections for all gasses are made through NPT connections installed in the enclosure.
- Reliable - Measurements are made on "wet, total sample basis" using the well known Nernst equation. Zirconium oxide fuel cell measurement of oxygen is currently used in installations worldwide.
- Stable - The oxygen analyzer is insensitive to changes in process gas flow or temperature and is independent of fuel type.
- On-Line Calibration - The oxygen sensor cell can operate for months without calibration, however a manual operated calibration gas control system is provided to test the system with certified gases.
- No Sample Lines - No sample lines to clog, leak, dilute or slow system response time.
Low Maintenance - All components, including the detector are easily assessable and can be field serviced without removing the probe or the mounting flange. Long term, continuous operation with a minimum amount of operator intervention.
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Each System Includes:
- Electronics and gas controls in NEMA 12 Enclosure.
- Digital Display
- 4-20mA output
- Manual gas controls for reference, calibration and aspiration air.
- 304 S.S. Probe
- Installation manual
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Options:
- Alarm contacts
- NEMA 4 enclosure.
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Utility Requirements:
- Reference air: Clean dry instrument air, 1 L/min +/- 20%
- Calibration gas: Zero with 2% oxygen balance N2, 3 L/min.
- Power: 115/230VAC, 50/60Hz., 1 PH +/- 10%, 1 amp.
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