Specifications

Application
Tek-Air's Iso-Tek space pressurization monitoring system is
designed for use in a wide variety of applications that necessitate the
monitoring of air flow from one room to another. The monitor
system can be configured by the user for bi-directional
measurement of either air velocity in feet per minute (fpm), or air
pressure in inches of water column ("wc).
Hospital applications include patient isolation, autopsy, and
operating rooms. CDC guidelines published in the Federal Register
suggest: "Transmission of mycobacterium tuberculosis is a
recognized risk to patients and health-care workers in health-care
facilities..."; "TB isolation rooms should be checked daily for negative
pressure while being used for TB isolation."; "The minimum pressure
difference necessary to achieve and maintain negative pressure that
will result in airflow into a room is very small (0.001 inch of water).";
and "Pressure-sensing devices should incorporate an audible
warning with a time delay..."
Experienced test and balance contractors state that tests with
anemometers and smoke sticks take an average of fifteen minutes
per room, per day. If performed by hospital maintenance staff, the
cost of testing will exceed three thousand dollars per room, per year,
and far more if performed by an outside contractor. Iso-Tek
provides continuous monitoring at a fraction of the cost of manual
techniques.
Iso-Tek also serves applications in prisons and shelters; wherever
individuals with TB, HIV or other infectious diseases are treated. In
chemical laboratory applications, Iso-Tek is designed to accurately
monitor and ensure proper room pressurization. Iso-Tek meets
requirements of the American National Standards Institute (ANSI)
and the American Industrial Hygiene Association (AIHA) Lab Safety
Standard, Z9.5-1992.
Iso-Tek has many advantages over measurement systems that
utilize "through the wall" thermal sensing methods. Advantages
include rugged construction, fewer installation constraints, and
immunity to fouling by lint and dirt. Iso-Tek has the same
advantages that "through the wall" systems have over diaphragm
sensors such as long-term stability, high sensitivity and
measurement capabilities at ultra-low pressures.
Hardware
The Iso-Tek SPM2100 system consists of four major
components: the transmitter unit, display module, room sensing and
reference probes. Tubing required to connect the probes to the trans-
mitter, and the cable for connecting the display module to the trans-
mitter are also included. For those applications requiring a digital
LCD readout of room pressure or velocity, the SPM2200 adds this
feature to the display module.
Tek-Air Systems, Inc.
41 Eagle Road • Danbury, CT 06810 • [phone] • FAX: [phone] • SALES
FAX: [phone] • www.tek-air.com
T-Iso-Tek • 5-05
Space Pressurization is required in Hospitals,
Laboratories, Clean Rooms and Pharmaceutical
Production Areas. Tek-Air’s Iso-Tek space pressurization
monitor is designed specifically for the continuous
monitoring of the space differential pressure for these
and other critical applications.
Measures transfer air velocities and pressures bi-
directionally, allowing room polarity indexing by
remote switch or through Building Automation System
Utilizes high accuracy , low drift, micro-machined,
thermal mass airflow sensors, capable of measuring
ultra-low pressures as low as 0.001"wc
Convenient room display module with alarm
capabilities for alerting personnel to unsafe conditions
Configurable to meet a wide variety of application
requirements
Provides analog status signal and digital alarm contact
interfaces to Building Automation System
N2 communications capable
Iso-Tek SPM2000
SPACE PRESSURIZATION
MONITOR SYSTEM FOR ISOLATION
ROOMS AND LABORATORIES
TEK-AIR TECHNICAL PRODUCT DATA SHEET