XPDM Handheld Moisture Analyzer for Industrial Gases

Whether you’re commissioning a new dryer, verifying compressed air quality, checking a natural gas pipeline, or troubleshooting moisture contamination, permanent analyzers aren’t always practical.

The COSA XENTAUR™ XPDM™ Portable Dew Point Meter is a battery-powered handheld instrument designed for rapid, accurate moisture measurements in industrial gases. Using patented HTF™ aluminum oxide sensor technology together with COSA XENTAUR’s unique Dry Storage System, the XPDM protects the sensor from ambient humidity between measurements, delivering faster response, improved repeatability, and dependable field performance for technicians and maintenance personnel.

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Why Choose the XPDM?

Benefits

- Portable battery-powered operation
- Patented HTF aluminum oxide sensor technology
- Exclusive Dry Storage System
- Dew point measurement from -100°C to +20°C
- Rapid field measurements
- Spot-check moisture verification
- Fast sensor recovery
- One-button operation
- Six engineering units
- Single Point Calibration
- SpanCheck™ field verification
- Long battery life (typically 6–12 months with a 9V battery)
- Lightweight and compact
- Rugged industrial construction
- Carrying case available
- Low maintenance
- Ideal companion to fixed dew point transmitters

FEATURES

Our XPDM Series Dew Point Meter is a highly accurate and reliable handheld instrument used for on-site measurement of dew point temperature in gases and liquids. Here are some of its features:

High accuracy: Provides highly accurate dew point temperature measurements, with an accuracy of up to ±3°C.
Wide measuring range: Can measure dew point temperatures from as low as -148°F to +68°F (-100°C to +20°C), making it suitable for a wide range of applications.
Fast response time: Provides real-time measurements, with most response times less than 5 minutes. Once in range response time goes to seconds.
User-friendly: Designed to be easy to use, with a clear and intuitive display and simple one-button operation.
Portable: Is lightweight and compact, making it easy to carry and use in the field.
Versatile: Can be used to measure the moisture content of various gases, including natural gas, compressed air, hydrogen, nitrogen, and more.
Durable: Built to withstand harsh industrial environments and 9v battery will last for 6-12 months
With aluminum oxide sensors
.

for dew point monitoring with Aluminum Oxide Sensors

XPDM Series Dew Point Meter with Aluminum Oxide Sensors

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Manual

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SINGLE POINT AND SPANCHECK™ CALIBRATIONS

Single Point calibration and Spancheck™ are features found in both the XDT and the portable XPDM. These features enable COSA XENTAUR dew point meters users to easily check and perform field calibrations on the instrument.

Both functions are important as they help ensure the accuracy and reliability of the instrument over time, especially if the instrument has been subjected to drift, harsh conditions or has not been calibrated for a while. Here are some reasons why Single Point and Spancheck™ in the field are good:

Ensures accuracy: Single Point Calibration allows users to quickly and easily check the accuracy of the instrument in the field, with a calibration standard. This helps ensure that the instrument is providing accurate and reliable measurements, which is crucial in many industrial and commercial applications.
Calibration Standard: Performing a single point calibration on the XPDM allows it to become the daily calibration standard. Doing away with carting heavy cylinder calibration standards to multiple locations.
Increases productivity: Decreases down time if exposed to liquids or excessive wet gas. Spancheck allows users to reset the calibration of the instrument on-site, without the need for additional equipment or specialized skills. This helps increase productivity and efficiency, as users can quickly verify the accuracy of the instrument and continue with their work while decreasing down time.
Reduces risk: Helps reduce the risk of inaccurate measurements, which can lead to costly errors or safety hazards in certain applications. By allowing users easy calibration of the instrument in the field, Single Point and Spancheck help ensure that the instrument is providing accurate and reliable measurements at all times.

Expanded Applications

Compressed Air Systems

Quickly verify:

Dryer performance
ISO 8573 compliance
Moisture contamination
Compressor maintenance
Air treatment systems

Natural Gas Pipelines

Perform field verification of:

Pipeline moisture
Custody transfer points
Compressor stations
Processing plants
Gas quality

Hydrogen Production

Measure moisture in:

Electrolyzers
Hydrogen storage
Distribution systems
Fuel cell infrastructure
Hydrogen purity verification

Industrial Gas Production

Verify moisture in:

Nitrogen
Oxygen
Argon
Helium
Specialty gases
Air separation plants

Semiconductor Manufacturing

Support:

Ultra-high purity gas verification
Tool commissioning
Gas cabinet testing
Utility troubleshooting
Process gas quality audits

Electrical Utilities

Measure moisture in:

SF₆ systems
Transformer gases
Switchgear
Insulating gases

Maintenance & Commissioning

Ideal for:

Spot checks
Startup verification
Preventive maintenance
Troubleshooting
Dryer inspections
Temporary monitoring

Welding & Specialty Gases

Verify gas quality for:

Welding gases
Laser gases
Specialty gas cylinders
Gas blending operations

Frequently Asked Questions

What is a portable dew point meter?

A portable dew point meter is a handheld instrument used to measure moisture content in gases during field inspections, commissioning, maintenance, and troubleshooting.

What makes the XPDM Dew Point Meter different?

The XPDM combines HTF aluminum oxide sensor technology with an exclusive Dry Storage System that keeps the sensor dry between measurements, significantly improving recovery time and field performance.

What gases can the XPDM Dew Point Meter measure?

The XPDM is suitable for numerous industrial gases, including compressed air, nitrogen, hydrogen, oxygen, natural gas, specialty gases, and insulating gases.