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Applied Analytics Ammonia Analyzer, monitoring the distinct NH3 absorbance curve in the UV region, the OMA provides reliable ammonia monitoring for critical applications like ammonia slip and natural gas.
Proven Applications
Ammonia Absorbance Spectrum
To measure ammonia concentration, the OMA detects the distinctive absorbance curve of pure NH3 and mathematically isolates this structure from the total sample absorbance. In accordance with Beer-Lambert Law, the OMA correlates the height of this curve directly to real-time ammonia concentration.
Sampling
The OMA is built for direct analysis of the hot/wet sample, thus simplifying the scope of the sample system and retaining high sample integrity. From our vast experience in sampling design, we know that applications can be similar but are rarely identical. For this reason, we design and build sample conditioning systems on a project basis, working from the process to the drawing board.
General
Measurement Principle | Dispersive ultraviolet-visible (UV-Vis) absorbance spectrophotometry | ||
Detector | nova II™ UV-Vis diode array spectrophotometer | ||
Spectral Range | 200-800 nm | ||
Light Source | Pulsed xenon lamp (average 5 year lifespan) | ||
Signal Transmission | 600 μm core 1.8 meter fiber optic cables | ||
Path Length | Application-dependent | ||
Sample Conditioning | Custom design per application | ||
Analyzer Calibration | If possible, analyzer is factory calibrated with certified calibration fluids; no re-calibration required after initial calibration; measurement normalized by Auto Zero | ||
Reading Verification | Simple verification with samples and self-check diagnostic | ||
Human Machine Interface | Industrial controller with touch-screen LCD display running ECLIPSE™ Software | ||
Data Storage | Solid State Drive | ||
OPERATING CONDITIONS | |||
Analyzer Environment | Indoor/Outdoor (no shelter required) | ||
Ambient Temperature | Standard: 0 to 35 °C (32 to 95 °F) | ||
Sample Temperature | Standard: -20 to 70 °C (-4 to 158 °F) | ||
Sample Pressure | Using standard flow cell: 206 bar (3000 psi) | ||
UTILITIES | |||
Electrical | 85 to 264 VAC 47 to 63 Hz | ||
Power Consumption | 45 watts | ||
OUTPUTS | |||
Standard Outputs | 1x galvanically isolated 4-20mA analog output per measured analyte(up to 3; additional available by upgrade) | ||
Optional Outputs | Modbus TCP/IP; RS-232; RS-485; Fieldbus; Profibus; HART; | ||
Ammonia Accuracy | |||
0-1,000 ppm | ±2% full scale | ||
0-1% | ±2% full scale | ||
0-50% | ±2% full scale | ||
*The above performance specs assume SO2 concentration is below 100 ppm. Consult us for sample streams with higher SO2 levels. | |||
Certifications | |||
Standard Design | General Purpose |
Available Options | ATEX, IECEx, EAC, PESO, JPN, KTL |
Please inquire with your sales representative for additional certifications (CSA, FM etc.). | |
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