Diagnostic Life And Analytical Science
DEWPOINT DUO™ On-Line Water and Hydrocarbon Dewpoint Analyzer
Now for the first time, incorporated within a single instrument, DEWPOINT DUO™ allows simultaneous measurement of water and hydrocarbon dewpoints. This is the most advanced instrument of its kind on the market and is the culmination of several years of research and development by ZEGAZ Instruments. Certified for use in hazardous locations. DEWPOINT DUO™ is deployed on some of the largest pipelines and gas refineries in the world. DEWPOINT DUO™ carries CSA (Class I, Div.1) and ATEX/IECEX (II 2 G Ex db IIB+H2 T6 Gb) hazardous location certifications.
ZEGAZ Instruments DewPoint Duo™ water and hydrocarbon dewpoint analyzer is the most advanced dewpoint measurement system available, capable of measuring both dewpoints simultaneously.
It has an accuracy of ±0.5⁰C (±0.9 ⁰ F), distinguishes between hydrocarbon and water dewpoints and provides highly accurate, measurements. It is based on CEIRS™ (ChilledEvanescent Infrared Spectroscopy), a patented method.
ZEGAZ Instruments products are the only analyzers in the world that use CEIRS™, a spectroscopic approach that determines the dewpoint, while unambiguously determining whether it was water or hydrocarbon dewpoint. It has an accuracy of ±0.5⁰C (±0.9 ⁰ F), distinguishes between hydrocarbon and water dewpoints and provides highly accurate, measurements.
It is based on CEIRS™ (ChilledEvanescent Infrared Spectroscopy), a patented method.
KEY FEATURES
- Direct, First PrincipleMeasurement
- NIST Tested
- No Consumables
- Self Cleaning
- Immune to Most Contaminants
- Accurate and Unambiguous
- No Calculation or Model Errors
- Distinguishes Between Hydrocarbon and Water
- Fully Automated
- Works at Line Pressure
- No Moving Parts
- No Carrier Gas or Replacement Parts
- Sensor Not Damaged by Contaminants, Slugs or Aerosols
SPECIFICATIONS
Performance
| Dewpoint Measurement Range | 126⁰F (70 ⁰C) below ambient temp. |
| Lowest Detectable Dewpoint | -40 ⁰F (-40 ⁰C) |
| Highest Detectable Dewpoint | +131⁰F (+55⁰C) |
| Measurement Time | 2-12 Minutes |
| Dewpoint Accuracy | ±0.9 ⁰F (±0.5 ⁰C) |
| Dewpoint Repeatability | ±0.4 ⁰F (±0.2 ⁰C) |
| Dewpoint Resolution | ±0.1 ⁰F (±0.1 ⁰C) |
Application Condition
| Operating Temperature | -4 to 122⁰F (-20 to +60⁰C) |
| Storage Temperature | -22 to 140⁰F (-30 to +60⁰C) |
| Process Pressure | Up to 2000psi (135bar) |
| Flow Rate | 0.3-1.5 SLM |
Electrical and Communication
| Input Voltage | 100-264 VAC, DC Optional |
| Power Usage | 120W Peak, <30W Average |
| Signal Outputs | 4×4-20mA, 3xDO, RS-232, RS-485 |
| Protocol | Modbus Gould RTU, Daniel RTU |
Physical
| Size (not including sample system) | 14”x14”x6” (355x355x150mm) |
| Weight (not including sample system) | 40lbs (18Kg) |
Certification
| Hazardous Location | CSA Class I, Div. 1, Group B,C&D, T6 |
| Other | IP66, CE, ISO 9001 |
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