Edgetech Instruments Com.Air Specifications

ISO/IEC 17025:2005 Accredited

ISO 9001:2008 Certified

A Robust, High Accuracy Dew Point Hygrometer for

Monitoring and Controlling Compressed Air Systems

The COM.AIR dew/frost point monitor has been designed
to offer the highest level of reliability and accuracy
available in compressed air systems dew/frost point
measurement. It is highly regarded by manufacturing
engineers for its robust packaging, accuracy, long life, fast
response and ease of use. The COM.AIR is available with

a variety of primary method chilled mirror sensors including

Edgetech Instruments’ S Series for most compressed air
applications, or the X3 Series when corrosion resistance or
lower dew/frost point measurement is needed.

The COM.AIR employs a highly developed chilled mirror
sensor, the most accurate commercial dew/frost point
sensor type available, to deliver continuous, drift-free dew/
frost point measurement in compressed air systems
without the need for regular calibration or sensor
replacement. It utilizes programmable Automatic Balance
Control (ABC) to correct for the effects of mirror
contaminants and provide continuous monitoring with very
little or no maintenance. Its modular sensor may be
configured for the user’s dew/frost point range
requirements. The COM.AIR offers the highest level of
reliability and accuracy available in a comp r essed ai r
sy stem dew/ f r ost p oint measur e ment instrume n t.

The COM.AIR is a complete dew/frost point monitoring system

contained in a NEMA-12 enclosure for use in rugged
industrial environments. The wall-mountable package
contains the sensor, control circuitry and flow control
assembly. After mounting, installation of a single sample
line and power connection put the COM.AIR into operation.
An alarm relay, horn and visual indication as well as an
analog output are included.

Edgetech Instruments, Inc. is accredited to the ISO/IEC

17025:2005 standard and is ISO 9001:2008 certified. All

calibrations and certifications are traceable to NIST.

Features:

Precise, drift-free dew/frost point measurement
Primary method, chrome chilled mirror sensor
Automatic Balance Control
Easily serviceable sensor
Audible and visual alarms
Multiple interface options
Integral sample flow meter

Precision Compressed Air Chilled Mirror Dew Point Hygrometer

COM.AIR Dew/Frost Point Hygrometer

Applications include:

Compressed air
Dryer systems
Heat treating

Fluidized beds
Plastics blow and injection molding
Pharmaceutical processes
MAP systems
Power and energy systems
Verification of polymer and metal oxide

sensor based hygrometers

www.edgetechinstruments.com

Toll Free: 800-279-3729 Ph: 508-263-5900 Fax: [phone]

E-mail: [e-mail]

Web: www.edgetechinstruments.com

Technical Specifications

ISO/IEC 17025:2005 Accredited

ISO 9001:2008 Certified

Sensor Type:

Primary method chilled mirror dew/frost point

Dew/Frost Point Range (at 25°C ambient):

S Series sensors:

S2 two-Stage: -40 to 122°F (-40 to 50°C)

S3 three stage: -103 to 122°F (-75 to 50°C)

Liquid cooling is required to measure frost points

below -60°C with S Series sensors

X3 Series sensors:

X3 Standard: -50 to 165°F (-45 to 75°C)
X3F Fan Cooled: -85 to 165°F (-65 to 75°C)
X3SF High Efficiency: -95 to 165°F (-70 to 75°C)
X3LC Liquid Cooled: -130 to 165°F (-90 to 75°C)
Liquid cooling is required to measure frost points

below -70°C with X3 Series sensors

Accuracy, Dew/Frost Point:

S Series: ± 0.5°F (± 0.28°C)
X3 Series: ± 0.36°F (± 0.20°C)

General:

Display: Red LED, 0.5” (1.27mm) tall; 8 digit

alphanumeric

Operating temperature: 32° to 122°F (0° to 50°C)
Sample connection: 1/4” compression fitting,

standard model configured for positive pressure

Sample flow rate: 0.5 - 5 SCFH; integral flow

meter

Pressure: 0 - 150 psig (10.34 bar). Higher

pressures available, consult factory

Power:

90-230 VAC ±10%, 50-400Hz, cord and ON-OFF

switch provided

Outputs:

Analog: 0-5 VDC or 4-20 mA scaled for sensor
Compliance: 9.0VDC, 450 ohms

Serial: RS-232

Alarms:

Audible: >98 dba at 2 ft.
Relay: 1 Form C, non-latching 10 A at 240 VAC,

8A at 24 VDC, 1/2 HP at 240 VAC

Visual: Flashing “ALARM” message

Weights & Dimensions:

Weight: 6 lbs. (2.7 kg)
Enclosure Dimensions:

10.7” (27.3cm) H; 14.0” (35.6cm) W; 6”(15.2cm) D

Environmental:
Enamel Coated Steel NEMA-12 (IP52)

Options:

Vacuum pump for sample extraction
Extended range sensors
RS232 digital output
Pressure transducer (for gr/lb. or ppmV

measurement)
In-line particulate/coalescing filter
Remote sensor mounting kit

Strobe alarm light

High pressure sensor
Platinum or stainless steel mirror

Initiating Automatic Balance Control