Dew Point & Moisture
Condumax II Hydrocarbon Dew-Point Analyzer
Fully automatic, chilled-mirror hydrocarbon and water dew-point analyzer for natural gas quality.
MI
Michell Instruments Ltd.
QMA601-LR Low-Range Process Moisture Analyzer
Ultra-low trace moisture analyzer for natural gas down to 0.02 ppmV.
Key Features
- Measurement range 0.02 to 100 ppmV
- Accuracy of ± 0.03 ppmV or 10% of reading
- Maintenance-free for 3 years
- Built-in verification against customer process gas
- IECEx, ATEX, UKCA, TR CU Ex certified (Exd flameproof); cQPSus explosion-proof certified
- Intuitive colour touchscreen HMI — no hot works permit required to interrogate
- 14 internal alarms
- 21 predefined carrier gases plus 3 user-definable gases
- Suitable for natural gas containing up to 20% hydrogen, no modification required
Overview
The QMA601-LR is a low-range process moisture analyzer designed for reliable, fast and accurate measurement of ultra-low trace moisture in natural gas for NGL fractionation and LNG liquefaction applications. Built on Michell's proven quartz crystal microbalance technology, it extends measurement down to a 0.02 ppmV detection limit while keeping the simplicity and low cost of ownership of the established QMA601 platform.
Working Principle
A quartz crystal microbalance sensor measures the mass change caused by moisture adsorption from the sample gas, giving a highly sensitive and repeatable trace moisture reading even at sub-ppm levels. Built-in verification against a reference process gas allows ongoing confidence in measurement accuracy between service intervals.
Applications
Benefits
- Extends trusted quartz crystal technology down to ppbV-level trace moisture
- 3-year maintenance-free operation lowers total cost of ownership
- Touchscreen access without a hot works permit speeds routine checks
- Hydrogen-tolerant design suits blended and hydrogen-enriched gas streams
Technical Specifications
| Technology | Quartz Crystal Microbalance |
|---|---|
| Range | 0.02 to 100 ppmV |
| Accuracy | ± 0.03 ppmV or 10% of reading |
| Hydrogen Tolerance | Up to 20% H2, no modification required |
| Display | Colour touchscreen HMI |
|---|---|
| Alarms | 14 internal alarms |
| Carrier Gases | 21 predefined + 3 user-defined |
| Hazardous Area | IECEx, ATEX, UKCA, TR CU Ex (Exd flameproof) |
|---|---|
| North America | cQPSus explosion-proof certified |
| Service Interval | Maintenance-free for 3 years |
|---|
Downloads
QMA601-LR Datasheet (PDF)PDF
Frequently Asked Questions
What warranty is offered on this product?
All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.
Do you provide installation and commissioning?
Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.
Are spares and calibration available locally?
Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.
How long is the typical lead time?
Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.
Request a Quote — QMA601-LR Low-Range Process Moisture Analyzer
Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.
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