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Omniguard Cellular™ Owner’s Manual
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Engineering Solutions Inc
Appendix C: Establishing a Containment Site
The Omniguard monitors and records the differential pressure
between the top inlet nozzle and the bottom inlet nozzle
(Reference).
In abatement applications the Omniguard should be located outside
the containment area and not in any antechambers (i.e. shower or
changing room). This allows a supervisor or hygienist to monitor
pressure readings without entering the containment area.
This section of general guidelines to establishing a containment
site is provided by Engineering Solutions Inc for informational
purposes only. Engineering Solutions Inc is not responsible for
its accuracy nor conformance with specific regulations for your
area. Engineering Solutions Inc specifically advises all users
to obtain the advice of qualified professionals for each use and
application of the Omniguard. Engineering Solutions Inc makes
no claims as to the proper usage or interpretation of the data
provided by the Omniguard.
General Guidelines to Establishing a Containment Site
1. The contractor and hygienist are to be certified prior to qualifying
to bid on an abatement job.
2. All workers are to have undergone specific training in abatement
procedures.
3. Typical abatement requirements:
a. Containment area to be sealed within a double layer of
8 mil plastic or equivalent.
b. Before beginning work within the containment area and at
the beginning of each shift, the containment area must be
inspected for breaches and smoke-tested for leaks, and
any leaks sealed.
c. Air volume within containment must be changed 4 times
per hour, i.e. the entire air volume must be evacuated
every 15 minutes.
d. Minimum pressure in containment is -0.020”WC, i.e. the
differential pressure between containment pressure and
ambient/outside pressure must be at least -0.020”WC as
measured by a manometer.
e. The containment area must be kept under negative pressure
throughout the period of its use.
f. Air movement must be directed away from employees within
containment and toward a HEPA filtration unit.
g. Fiber levels within the containment area must be sampled
at a specific interval and be less than a proscribed level,
i.e. sampled 1 time a day or more and fiber levels below
“5 fibers/100 fields”.
Appendix B: Specifi cations
Differential Pressure Range: +/-0.250”WC (+/-6.35 mmWC,+/-62.5
Pascals)
Accuracy: +/-0.003” WC or +/-1 % of reading, whichever is greater
Resolution: +/-0.001” WC, (+/-0.05mm WC, 0.5 Pascals)
Burst Pressure: 3 psi (20 kPa) on either inlet nozzle
Pressure Units: “ WC (inches Water Column), mmWC (millimeters
Water Column), or Pa (Pascals)
Date (Log) Storage: 4 MB non-volatile memory
Display: 4.3” Color Touchscreen LCD (480 x 272 pixels)
Internal Clock: The internal clock is powered by a self-charging
lithium-ion battery that provides clock operation when AC power
is not present
Printer: 20 character wide thermal printer (uses 2.2” wide thermal
printer paper)
Pressure Reading Log Rates (Log Rate):
Normal Operation -- Highest and lowest pressure readings are
logged & printed at intervals of 5, 15, 30 minutes or OFF
Alarm Condition -- Highest and lowest pressure readings are
logged & printed at intervals of 15, 30, 60 or 120 seconds for first
10 minutes of alarm condition, increasing to 15 minute intervals
thereafter
Alarms: Two programmable alarm settings, 95db audible alarm and
red bordered on-screen warning indicate alarm condition
Pressure Inlet Nozzles: Two 3/16” OD barbed hose connectors, 10
ft of pressure hose provided
USB Port: USB V1.1 Type-A
USB Port: USB V1.1 Type-B
AC Power: 85-240 VAC 50-60Hz 10W (with 6 ft power cord)
Battery Power: Internal rechargeable 3.7 Volt Li-ion type battery
internal provides 4-6 hours of portable operation, recharges
in 4 hours when AC power is available (printer is disabled
when powered by battery)
Case: Dimensions 9.25” x 7.5” x 4.5”, Shipping Weight 8 lbs., case &
handle is copolymer polypropylene with polycarbonate window in
the lid, and stainless steel hanging hook
Warranty: One Year Limited Warranty
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