DFP-100-1 & DMPC-500A

Many applications of porous materials require very low gas permeability through these
materials. Such applications are found in many industries including biotech, healthcare,
pharmaceutical, food, packaging, environmental, power sources and chemical industries.
Determination of the magnitudes of flow rates of multiple gas through materials used in
these applications is important for evaluation of products.
The PMI Dynamic Moisture Permeation
Analyzer is capable of measuring water vapor
transmission through porous media such as
textiles, leathers, man made materials,
membranes, nonwovens, and fabrics used in
numerous high technology components and
consumer products manufactured by a variety
of industries. The instrument has the unique
ability to measure vapor transmission rate over
a wide range of humidity, temperature, and
pressure under gradients of humidity,
temperature, and pressure encountered in
application environments.

Gas Diffusion Permeameter

Permeability Range:	from 1 to 10 darcies
Sample Size:	1.75” – 2.5” diameter
Pressure Range:	100 psi maximum differential pressure
Pressurizing Gas mixture:	multiple non-corrosive gas
Vacuum Pumping System:	Vacuum to 0.002 Torr
Stock Tank:	Built in, Low Pressure Sample Cell Size: 50 – 100 cc (specific to machine)
Weight:	500 lbs (specific to machine)
Power Requirements:	220 VAC, 50/60 Hz (Others available)

Pressure Transducer Range:
	High Pressure Side:	0 – 100 psi
	Low Pressure Side:	0 – 10 Torr
	Accuracy (both):	0.15% of reading
	Resolution:	1 in 60,000

Dynamic Moisture Permeation Analyzer

Humidity (φ) Measurement

Differential Pressure Transducers

Range:	5 – 95%
Accuracy:	± 2%

Range:	10 torr (10 mm Hg)
Accuracy:	0.015%

Temperature

Mass Flow Transducers

Range:	10 ° – 40 °C
Accuracy:	0.4 °C (low φ) – 0.8 °C (high φ) at 0 °C
Control	± 2%

Range:	8 L/min
Accuracy:	1%

Humidity (φ) Control

Mass Flow Meter

Range:	5 – 95%
Accuracy:	± 1.5% (φ = 0.5) ± 5% (high & low φ)

Range:	8000 cc/min
Accuracy:	1%

Mass Flow Controller

Range	2000 cc/min
Accuracy:	1%

Category: Miscellaneous

Description
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Description

Dynamic Moisture Permeation Analyzer

Humidity on any side can be maintained
between 5 and 95%
Any desired pressure gradient can be
maintained between 0 -10 Torr
Any desired test temperature can be achieved between 10º – 40°C
Simultaneous pressure and humidity gradients can be maintained
Flat samples in a wide range of sizes can be accommodated
It is used for measuement of comfort of medical gowns and other medical textiles.
Completely Automated:
- Test Execution
- Data Storage
- Data Acquisition
- Data Reduction