Engineering Solutions OMNIGUARD 4 User manual

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Engineering Solutions Inc
P/N OG4-MAN.130
Contents
Introduction............................................................................................2
Section 1: Basic Care............................................................................4
Section 2: Navigating The LCD Display ................................................5
Section 3: Quick Setup & Usage ...........................................................6
Sample Session: Viewing/Changing Settings.......................... 6
Hanging the Omniguard 4..............................................................7
Display Modes................................................................................7
Loading the Thermal Printer Paper................................................8
Section 4: Detailed Operation................................................................9
Work Area Setup ............................................................................ 9
Power-Up ......................................................................................9
Contractor Name............................................................................10
Date & Time ...................................................................................11
Alarm Setpoint Selection................................................................11
Example of Setting Alarm Levels.............................................12
Starting/Ending A Job.....................................................................12
Alarm Condition..............................................................................13
Alarm Silence, Disable and Rearming ...........................................14
Turning Printer On/Off.................................................................... 14
Viewing/Printing Jobs & the Print Job Key.....................................14
Example of Typical Job Printout ..............................................15
Example of Job Summary Printout..........................................15
Conguration Report......................................................................16
Print/Log Rates ..............................................................................16
Inlet Pressure Response Rate .......................................................17
Display Contrast & Backlight..........................................................17
Description of Controls (drawing of front panel)......................18
Pressure Units................................................................................20
Passcode Protect...........................................................................20
Zero Calibration..............................................................................21
Using Help......................................................................................21
USB Ports ......................................................................................21
USB Port Status Symbols........................................................ 22
Communication ..............................................................................22
Transferring a Job Log to the PC.............................................23
USB Flash Drive - Data Collection.................................................23
Transferring a Job Logs to a USB Flash Drive ........................23
Remote Auxiliary Alarm Setup & Usage.........................................24
WiFi Adapter & Off-Site Monitoring ................................................ 24
Telephone Autodialer Setup & Usage ............................................ 25
Message Rate................................................................................25
Wireless Communication Using A Cellular Wireless Modem ......... 26
Remote Monitoring & Telephone Modem Setup ............................27
Communication Remote Monitoring Screen............................ 29
Appendix A: Troubleshooting.................................................................30
Shipping & Repair.................................................................... 31
Appendix B: Specications....................................................................32
Appendix C: Guidelines to Establishing a Containment Site.................33
Appendix D: Limited Warranty...............................................................35

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Engineering Solutions Inc
• Log and track by Jobs. Stores multiple jobs, each with unique job
name and starting/ending dates.
• Contractor name appears in all Job Logs.
• Programmable high and low alarm settings.
• Windowed case lid allows viewing pressure reading and status
with lid closed to prevent damage to unit.
• Large easy-to-read graphic LCD display.
• Multiple display modes.
• 120+ days internal memory stores pressure readings and alarm
occurrences with a date/time-stamp, complete record of operation
available for printing and transfer to computer.
• Built-in hanging clip gets unit off the ground and away from
possible damage, allows easy viewing of monitoring status.
• Totally self-contained unit, all necessary parts store securely inside
the lid.
• Temperature compensation circuitry eliminates the need for off-site
calibration.
• Pressure readings displayed in Inches WC, Millimeters WC or
Pascals.
• USB Type A port supports multiple peripherals and accessories
including USB flash drive, cellular wireless modem, remote
auxiliary alarm, telephone autodialer and Wifi Adapter.
• USB Type B port supports PC communication for transferring job
logs to a computer.
• Audible and visual alarm systems with Alarm Silence function.
• Operating temperature range 30°- 130°F.
• 1 Year Limited Warranty.
Accessories
• WiFi Adapter alerts off-site personnel via email of all job site
conditions, including when normal operation is reached and if an
alarm occurs. It can also send a complete current job log file.
• Remote auxiliary alarm with high intensity strobe light and 95db
alarm & 25 ft. cable (requires USB Port Adapter).
• Cellular wireless modem alerts off-site personnel via e-mail or text
message during alarm conditions. It can also sends daily status
reports (requires USB Port Adapter).
• Telephone autodialer for off-site alarm notification (requires USB
Port Adapter & telephone land line at site).
• Optional 220VAC, 50Hz power supply operation.
Introduction
Congratulations on the purchase of your new Omniguard 4. The
Omniguard 4 features:
• 512K of secure log space
• Dual USB ports
• PC communication for transfering job logs to a computer.
• USB port for flash drive, cellular wireless modem, remote
auxiliary alarm, telephone autodialer, and WiFi adapter.
• Easy to read blue LCD
• Larger LCD and case window
Unpacking
The Omniguard 4 is shipped complete and ready to use. When
unpacking the unit, please check for the following items:
• Roll of thermal paper (installed)
• USB Cable 6 ft A-B Male-Male
• 10 ft. inlet pressure tubing
• Owner’s Manual
• Registration Card
Save the shipping box and packing material, in the event the unit
must be shipped to another location or for service. If you are missing
any items shown on the packing list, or if you have any questions
regarding your Omniguard 4, please call your dealer or Engineering
Solutions at [phone].
The Registration Card must be filled out and returned to activate the
12 month limited warranty.
Owner’s Manual Overview
This manual covers the setup and operation of the Omniguard 4. It
uses several different fonts and other special characters to make
various unit functions and types of reporting easy to identify. Below
is an example of each:
• Text printed on the display screen is shown as: ALARM 1
• Thermal printer text is shown as: NORMAL OP
• Keys and connectors on the front panel are shown as: ALARM
SILENCE
Features
• Real-time differential monitoring of vacuum and/or pressure
level.
• Extremely simple to setup and use, with on screen help.
Omniguard ™ 4
Differential Pressure Recorder
(with Dual USB Ports)

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Section 2: Navigating The LCD Display
The Omniguard 4 display features four screen types, shown below.
Press the indicated key to move from screen to screen.
Monitor Screen
Pressure in “WC
Alarm 1 & 2
Setpoints Printer On
Buzzer Armed
Status Bar
View/Edit Settings (Alarm Setpoints shown)
Setting being
changed (edited)
Valid Key
Choices
Function
Name(s)
Operating Window
use ▲/▼ to
change value of
setting
Info Box
Help Info Screen (Alarm Setpoints help shown)
Valid Key
Choices
Function
Name
Detailed
Help Info
Screen Name
top of menu
indicator
indicates more help
info available
press HELP
press SELECT
press MENU
Main Menu (Help Menu uses same format)
Highlighted Item
Valid Key
Choices
Menu Items
Screen Name
top of menu
indicator
indicates more
items available
press HELP again to go to Help Menu Screen
press EXIT to return to previous screen or Monitor Screen
Section 1: Basic Care
The Omniguard 4 is built and engineered to provide you with
dependable performance for years to come. Following these basic
guidelines will insure that you get maximum use from your unit.
Once the unit is set up, field operation is easy. Complete reports are
virtually automatic, providing the most accurate records of your job
site conditions available.
• This unit is designed to measure differential pressure only from
+0.250” to -0.250” WC (optional pressure ranges are available).
Caution: Never apply pressure to the inlet port by
mouth or with any other strong pressure device.
High pressure will permanently damage the
sensor.
• Use only Omniguard thermal printer paper (other thermal paper
will not work).
• Always store the unit away from sources of excessive temperature,
dust and moisture.
• Never attempt to repair or modify any of the internal components
of the unit.
• Protect the unit from strong shocks or vibrations. Be sure the lid
is securely closed whenever transporting or hanging the unit.
• Be sure to plug your Omniguard 4 into a power supply that
complies with the National Electrical Code. Keep all connections
dry. As with any electrical device, this unit has the potential to
cause an electrical shock hazard.
• If your unit must be shipped at any time to another location or for
service, use the original packing material and shipping box for
optimum protection during shipping.
USB Port Adapter

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6. Use ▲/▼ to adjust the value of the ALARM 2 setting.
7. Save the updated settings for both Alarm 1 & 2 by pressing SAVE.
Saved settings are printed and logged into memory.
or press EXIT to return to Main Menu without saving.
Note: Press HELP at any time to view more
detailed help information.
Hanging the Omniguard 4
The Omniguard 4 can be hung on a wall for easy viewing and to
keep it off of the floor, away from possible damage. Hanging the
Omniguard 4 by the clip allows the cover to close, protecting the unit
from water damage while allowing the LCD display and STATUS
LED to be viewed through the window on the cover. The hose and
AC cord should exit the case thru the foam slot, then the cover should
be latched closed to protect the unit from damage.
Use the DISPLAY key to flip the display orientation when hanging the
unit by its handle (see below).
Caution: Only hang the Omniguard 4 on a sturdy
surface. A fall could damage the unit and disrupt
accurate pressure measurements.
Display Modes
The DISPLAY key on the Omniguard 4 is used to vary the display
view and orientation to accommodate hanging the unit by its handle.
The pressure reading can be enlarged to enhance viewing from
across the room.
Press DISPLAY to toggle the views in the sequence shown below.
Section 3: Quick Setup & Usage
This section is a quick reference for using your Omniguard 4.
1. Insert one end of pressure tubing inside the containment area.
Connect the other end of tubing to INLET 1.
2. Locate a safe place for the Omniguard 4 outside the containment
area. Plug the power cord into a power outlet.
3. Press the POWER ON/OFF key to turn the unit on. Set the correct
Time & Date if prompted. (This happens if the internal battery
has died and the built-in clock lost its settings. Don’t worry, the
battery is rechargeable and lasts an average of 30 days.)
4. If you want a printed copy of the previous job log, press the PRINT
JOB key.
5. Press START JOB to begin a new job. Enter a name for the new
job and then press SAVE. The previous job will end and its Job
Summary Report will print.
6. Check Alarm 1 & 2 setpoints (displayed in the monitor screen
window), adjust if needed.
The status bar will indicate WAITING FOR PRESSURE and the
STATUS LED will flash green until containment pressure reaches the
operating window. Once reached, the status bar will display NORMAL
and the STATUS LED will change to steady green indicating that
the unit is now in its normal operational mode. Printing and logging
of pressure readings begin once the normal operational mode is
achieved.
During normal operation, the highest and lowest pressure readings
will be printed and logged into memory with a time/date stamp every
15 minutes (the default Print/Log rate).
If the monitored pressure then goes outside the operating window,
the unit will go into alarm mode. The buzzer will sound, the status
bar will change to a flashing >>ALARM<< and the STATUS LED will
flash red. The print and log rate of the pressure readings will increase
to every 15 seconds (the default Print/Log Alarm rate).
To turn the alarm off press the ALARM SILENCE key.
Sample Session: Viewing/Changing Settings
1. From the Monitor Screen, press MENU to go to the Main Menu.
2. Use the ▲/▼ arrow keys to highlight ALARM SETPOINTS.
3. Press SELECT to go to the View Setting Screen and allow changes
to the ALARM SETPOINTS.
4. The ALARM 1 setting can now be increased or decreased by
using ▲/▼.
5. Once the desired value has been reached, press 3/4to
highlight ALARM 2 setting.
press DISPLAY
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press DISPLAY
press
DISPLAY
press
DISPLAY

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Loading the Thermal Printer Paper
Caution: Only use Omniguard thermal printer
paper! Thermal paper prints on only one side, the
side away from the paper roll. If the roll is installed
incorrectly the printer will be able to advance the
paper but be unable to print on it.
C
B
A
B
C
A
1. Remove the printer housing lid
with the thumbscrew. Cut the
end of the paper to a tapered
point.
2. Place the paper roll, marked A,
into the tray so the paper unrolls
from the bottom.
3. Insert tapered point into slot
marked B, feed through until
tapered point can be pulled from
the top at slot marked C.
Do not use the PAPER FEED key
to advance the paper.
4. From C, gently pull until the
tapered portion is completely
exposed.
5. Replace lid onto the paper
housing and secure with the
thumbscrew.
Section 4: Detailed Operation
The Omniguard 4 monitors and records the differential pressure
between INLET 1 and INLET 2 (Reference).
In abatement applications the Omniguard 4 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.
Work Area Setup (see Appendix C for more details)
The Omniguard 4 should be placed on a solid (non-vibrating) surface,
excessive vibrations disrupt accurate pressure measurement.
1. The intake end of the pressure tubing must be located a minimum
of 5 feet away from any openings or HEPA fan/filter units.
Choose a location away from excessive dust or moisture.
2. Cut a 1/2” slit in the polyethylene barrier and feed approximately
1 ft. of pressure tubing through it. Tape the tubing securely to the
polyethylene.
3. Connect the free end of the tubing securely over INLET 1. Be
careful not to turn the nozzle.
4. Route the hose and AC cord through the foam notch area on the
upper right corner of the case. Close the lid (being careful to not
pinch the hose or AC cord) to protect the unit from damage.
5. The maximum hose length is limited to 70 ft (for 3/16”ID hose).
Lengths beyond 70 ft can degrade reading accuracy.
6. Program the Job Name and confirm the Alarm settings are correct.
The Alarm 1 and Alarm 2 settings should be in negative units
when used to monitor a negative (vacuum) containment area. For
positive containment applications, use positive units (Inches WC,
Millimeters WC or Pascals) for the Alarm settings.
NOTE: It is important that there be no kinks or
sharp bends in any part of the tubing. Any blockage
could inhibit accurate recording of the pressure in
the containment area.
Power-Up
To begin operating the Omniguard 4, plug the power cord into a
standard wall outlet supplying 115VAC, 60Hz and press the POWER
ON/OFF key. The first time a new unit is turned on the settings will
be at default values.
Initial Power-Up
Set the Date & Time and Alarm 1 & 2 setpoints because they are
set at the factory defaults. The Date & Time will only need to
be set once. The Alarm 1 & 2 setpoints will need to be adjusted
for each job’s requirements.

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Date & Time
The date and time settings are used as a reference time-stamp for
all logged events.
To change the Date & Time --
1. Press MENU to view the Main Menu.
2. Highlight DATE & TIME using ▲/▼and press SELECT to change
the setting.
3. Use ▲/▼to change the month.
4. Press 3/4to advance to the day, using ▲/▼to change.
5. Repeat the procedure for the year.
6. Press 3/4to advance to the time. Use ▲/▼to set the hours
and minutes, use the 3/4keys to move from one to the
other.
Note: the unit operates on a 24 hour clock.
7. Press SAVE to save the updated settings and return to the Main
Menu. Press EXIT to return without changing the settings.
Alarm Setpoint Selection
The normal operating window is the area between the Alarm 1 and
Alarm 2 setpoints. These setpoints can be set anywhere within the
operating range of the unit; +/- 0.250” WC in increments of 0.005”WC.
The Omniguard 4 can also operate in units of mmWC or Pascals.
(See Pressure Units.)
Alarm 1: (default is -0.025”WC)
• upper setpoint of operating window
Alarm 2: (default is -0.100”WC)
• lower setpoint of operating window
The Omniguard 4 can be used in both positive and negative pressure
monitoring applications. The procedure for setting of Alarm setpoints
is the same for both applications.
Negative Pressure Application -- Asbestos or lead abatement
example settings: Alarm 1 @ -0.020” WC
Alarm 2 @ -0.050” WC
Positive Pressure Application -- Clean room or HVAC system
example settings: Alarm 1 @ +0.050” WC
Alarm 2 @ +0.025” WC
Normal Power-Up Sequence
If the unit was properly turned off after the previous usage,
POWER OFF will print. Otherwise POWER FAIL will print,
indicating that an AC power failure may have occurred. Either
message will be followed by the date and time the unit was last
powered off.
A diagnostic test will automatically run and the unit will print the date,
time and the current alarm setpoints. The unit will then immediately
begin to monitor containment pressure.
Until the containment pressure has reached the operating window, the
status bar will indicate WAITING FOR PRESSURE and the STATUS
LED will flash green.
Note: Logging and printing of monitored pressure
readings does not begin until the containment
pressure has reached the operating window!
You will need to customize the factory Alarm 1 and Alarm 2
setpoints for your jobsite requirements!
Once the containment pressure reaches the operating window (the
area between the Alarm 1 and Alarm 2 setpoints) the status bar
changes from WAITING FOR PRESSURE to NORMAL and the
STATUS LED changes to a steady green. NORMAL OP is then
printed along with a time-stamp. The STATUS LED changes to orange
to warn of an impending Alarm condition when the pressure is within
0.005”WC of the Alarm setpoints.
Contractor Name
The Omniguard 4 can store the name of the Contractor that is using
the unit. The Contractor name will appear in all Job logs and printed
Reports. Only one name can be stored.
To set the Contractor Name --
1. Press MENU to view the Main Menu.
2. Highlight CONTRACTOR NAME using ▲/▼.
3. Press SELECT to view or change the setting.
4. Use the ▲/▼ keys to change the character. Upper and lowercase
letters and numbers are all usable characters to enter.
5. Use the3/4keys to move to the next/previous character to
set.
6. When the entire name has been entered, press SAVE to save the
new name and return to the Main Menu.
Pressing the EXIT key will return you to the Main Menu without saving
the updated Contractor Name.
-0.050"
Alarm 2
-0.020"
0.000"
INCREASING
VACUUM LEVEL
NORMAL OPERATING WINDOW
Alarm 1
ogiii hi and lo
INCREASING
VACUUM LEVEL
Negative Pressure
(containment)
Application

Page 12 Omniguard™ 4 Owner’s Manual
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new Job name. The previous job will end and a summary of it will
print, followed by a NEW JOB message.
Pressing the EXIT key will return you to the Monitor
Screen without starting a new job.
When completed, the screen will display Ending Last Job. After a few
moments the unit will automatically return to the Monitor Screen.
The memory has a capacity to store approximately 120+ days of
normal operation and 400 alarm messages. When the memory is full,
the new data will begin to overwrite the oldest data.
Note: Overwritten data cannot be retrieved.
Example of Printout after START JOB is pressed--
Alarm Condition
Once the containment pressure reaches the operating window, the
unit will be in normal operation and the alarms will be armed. If the
containment pressure rises or falls outside the operating window,
the following will occur:
1. Internal buzzer and the Remote Auxiliary Alarm (if present) will
sound and will remain active until ALARM SILENCE is pressed.
2. Any accessory devices (Telephone Autodialer, Cellular Wireless
Modem, or WiFi Adapter) will activate and will remain active until
the correct pressure is restored and the unit returns to normal
operation
3. The status bar will change to >>ALARM<< and begin flashing.
The STATUS LED will flash red.
4. Printer will indicate which alarm setpoint was exceeded. The print/
log rate will increase to the preset alarm rate. Printouts will show
the time followed by the pressure reading.
Example of Setting Alarm Levels
This is an example of setting the alarm levels for negative containment
area with an operating window of -0.020” to -0.050” WC.
To change the Alarm Setpoints --
1. Press MENU to view the Main Menu.
2. Highlight ALARM SETPOINTS using ▲/▼.
3. Press SELECT to view or change the setpoint values.
4. Use ▲/▼ to set Alarm 1 to -0.020”WC. The value will change
in 0.005” increments. The bar graph at the right of the screen
indicates the relative operating window size within the operating
pressure range of the unit.
5. Press 3/4 to highlight Alarm 2. Use ▲/▼to set the value to
-0.050”WC.
6. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main
Menu without saving the updated settings.
Once the containment pressure reaches a value between -0.020” and
-0.050” WC the unit will be in normal operational mode.
Then, if the containment pressure ...
... rises to -0.019” WC, Alarm 1 will activate.
... falls to -0.051” WC, Alarm 2will activate.
Starting/Ending A Job
The START JOB key is used to end the current job, which will complete
the job log and cause a Job Summary report to print, as well as start
and name the new job.
START JOB will not erase any previous job logs, nor will it alter any
other settings (such as the Alarm Setpoints). A report for the previous
job can be printed at any time.
Note: It is a good idea to print a report of the
previous job (using PRINT JOB) before pressing
the START JOB key. A report for the previous job
may also be printed at a later time by selecting
PRINT/VIEW JOB LOGS from the main menu.
To end the previous job and start a new Job --
1. Press the START JOB key.
2. Use the 3key to move to the cursor to the beginning of the line.
Then use ▲/▼ keys to change the character. Upper and lowercase
letters and numbers are all usable characters.
3. Use the4key move to the next character to set.
4. When the entire name has been entered, press SAVE to save the
END JOB
Johnson Bldg
JOB SUMMARY
JOB NAME:
Johnson Bldg
JOB START:
10-26-08 05:38
JOB END:
11-01-03 17:09
TIME IN NORMAL OP:
6 days 10 hrs 23 mins
NUMBER OF ALARMS:
2
TIME IN ALARM:
16 mins 28 secs
START JOB
Wilson Remodel
o
g
4a start job printout
Ending Current Job
Summary of Ended Job
Starting New Job

Page 14 Omniguard™ 4 Owner’s Manual
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Engineering Solutions Inc
Print Job Key --
Pressing PRINT JOB will print the selected report time frame for the
current Job. This makes it easy to print a particular portion of the
current Job on a regular basis.
To setup a report time frame --
1. Press MENU to view the Main Menu.
2. Highlight PRINT JOB KEY SETUP using ▲/▼and press
SELECT.
3. Using ▲/▼highlight the time frame desired and press SAVE.
To view or print a Job Log --
1. Press MENU to view the Main Menu.
2. Highlight VIEW/PRINT JOB LOGS using ▲/▼and press
SELECT.
3. Using ▲/▼highlight either CURRENT JOB or ALL JOB LOGS
4. The selected Job Log will appear on the screen for viewing. Press
the PRINT JOB key at any time while viewing the report and the
Job Report will begin printing.
When the containment pressure returns to within the normal operating
window, the unit will log and print NORMAL OP with a time-stamp.
The buzzer and accessories (if present) will turn off, also a Normal
Operation status message will be sent to off-site personnel if the WiFi
Adapter or Cellular Wireless Modem is present. The STATUS LED
will return to a steady green.
Alarm Silence, Disable and Rearming
The buzzer symbol on the Monitor Screen indicates whether the
internal audible alarm (and optional Remote Auxiliary Alarm if present)
is armed or disabled. The alarm is always armed when the unit is first
turned on. The alarm silence function is controlled by the ALARM
SILENCE key.
To disable or silence the buzzer (and Remote Auxiliary Alarm) --
Press ALARM SILENCE once and the alarm will be
disabled. This will be indicated on the screen with an X
marking through the buzzer symbol.
To rearm a silenced buzzer (and Remote Auxiliary Alarm) --
Press ALARM SILENCE and the buzzer symbol will be
displayed without an X through it.
Turning Printer On/Off
The PRINTER ON/OFF key controls the printer power. All pressure
readings are logged to memory regardless of printer setting.
Note: If a printer error is detected, the printer will
automatically turn off and a JAM message will
appear above the printer symbol. Clear the jam
and use the PRINTER ON/OFF key to turn the
printer back on. Paper jams are logged with a
time-stamp.
Example of Typical Job Printout
Typical startup sequence
Setting changes print for verification
Containment pressure reached
operating window... Normal OP
Alarm Condition (Alarm 1 tripped)
Back into Normal Operation
New Date prints at midnight
Sign off header
POWER OFF
10-21-08 19:48:39
CURRENT JOB
Johnson Bldg
OMNIGUARD 4
10-26-08 08:02:20
ALARM 1 @ -0.025" WC
ALARM 2 @ -0.100" WC
NEW TIME
05:38:00
NEW ALARM 2
-0.090" WC
NORMAL OP 05:51:24
TIMEHI "WCLO "WC
06:06 -0.032 -0.028
06:21 -0.031 -0.027
06:36 -0.033 -0.028
ALARM 1 @-0.025" WC
08:51:26 -0.012" WC
08:51:41 -0.002" WC
NORMAL OP 08:51:55
TIMEHI "WCLO "WC
09:06 -0.032 -0.028
10-27-08
TIMEHI "WCLO "WC
00:06 -0.032 -0.028
JOB REPORT
10-27-08 08:33:24
JOB NAME:
Johnson Bldg
____________________
CONTRACTOR:
Acme Abatement
____________________
SUPERVISOR:
____________________
og4a job report printout
JOB SUMMARY
JOB NAME:
Johnson Bldg
JOB START:
10-26-08 05:38
JOB END:
11-01-08 17:09
TIME IN NORMAL OP:
6 days 10 hrs 23 mins
NUMBER OF ALARMS:
2
TIME IN ALARM:
16 mins 28 secs
og4a job summary printout
Example of Job
Summary Printout
Alarm Symbols
Armed Disabled or
Silenced
Jammed
On Off
Printer Symbols
Viewing/Printing Jobs & the Print Job Key
The Omniguard 4 provides a printout of all recorded data, alarm
messages and changes in operational settings. The current Job or
any previous Job (or portions of those jobs) and the Omniguard’s
Configuration Report can be printed at anytime.
Cancel printing by pressing any key.

Page 16 Omniguard™ 4 Owner’s Manual
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Conguration Report
The Omniguard 4 provides a report of all the unit’s current settings
(Alarm Setpoints, Log Rates, etc.) and the current system information
(memory status, unit serial number, etc.). This report can be viewed
and printed at any time.
To view or print the Conguration Report --
1. Press MENU to view the Main Menu.
2. Highlight CONFIGURATION REPORT using ▲/▼and press
SELECT.
3. The Configuration Report will appear in its entirety on the screen
for viewing. Press the PRINT JOB key and the Configuration
Report will begin printing.
Cancel report printing by pressing any key.
Print/Log Rates
The printing and logging of pressure readings begins once the unit
reaches normal operation (status bar indicates NORMAL). There are
two user-definable rates at which printing/logging occurs.
Normal Rate: (default is 15 min.)
• setting choices are 5, 15, 30 minutes or OFF.
• rate at which the highest & lowest pressure readings are
printed and logged to memory during normal operation
• when set to OFF, unit will only log & print alarm readings
Alarm Rate: (default is 15 sec.)
• setting choices are 15, 30, 60 or 120 seconds.
• rate at which pressure readings are printed and logged to
memory during an alarm condition
To change the Print/Log Rate --
1. Press MENU to view the Main Menu.
2. Highlight PRINT/LOG RATES using ▲/▼and press SELECT to
change settings.
3. Use ▲/▼to change the NORMAL RATE.
4. Press 3/4to move from NORMAL RATE to ALARM RATE
and repeat step 3 to change the ALARM RATE setting.
5. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without
saving the updated settings.
To conserve paper and log space, the Alarm Print/Log rate will
automatically change to 15 minutes if the unit stays in an alarm
condition for more than 10 minutes. The pressure monitoring rate is
not affected. The Alarm Print/Log rate will return to its original setting
when the next alarm occurs.
Inlet Pressure Response Rate
This setting determines how quickly the unit will react to pressure
changes. Reduce this setting if you are using the unit in conditions
where air pressure fluctuates rapidly and can cause false alarms,
such as in high wind.
Response Rate: (default rate is Medium)
• rate choices are Slow, Medium and Fast
• in windy conditions, set to Slow
• if quick response to small pressure changes is needed, set
to Fast
To change the Response Rate --
1. Press MENU to view the Main Menu.
2. Highlight RESPONSE RATE using ▲/▼and press SELECT to
view or change the setting.
3. Use ▲/▼to change the setting.
4. Press SAVE to save the updated setting and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without
saving the updated settings.
Display Contrast & Backlight
The contrast level and backlight setting on the LCD screen allows
the user to adjust the display for optimal viewing in varied lighting
conditions. The backlight automatically dims after 4 minutes to extend
battery and backlight life. It can be reactivated by pressing any key.
Contrast: (default is 50%)
• range is 0% (min) to 100% (max)
Backlight: (default is ON)
• choices are ON or OFF
To change the Contrast or Backlight --
1. Press MENU to view the Main Menu.
2. Highlight DISPLAY from the Main Menu using ▲/▼and press
SELECT to change the settings.
3. Press 3/4to choose CONTRAST or BACKLIGHT and use
▲/▼to change the settings for each.
4. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without
saving the updated settings.

Page 18 Omniguard™ 4 Owner’s Manual
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PRINTER
ON/OFF
PRINT
JOB
START
JOB
ALARM
SILENCE
SELECT
MENU
EXIT
SAVE
HELP
POWER
ON/OFF
DISPLAY
DIFFERENTIAL PRESSURE RECORDER
TM
ENGINEERING SOLUTIONS INC SEATTLE, WA USA
STATUS
INLETS
Omniguard 4
12:27:00 07-01-09
Alarm 1: -0.025 "WC
Alarm 2: -0.100 "WC
Normal Operation:12:27:10
PAPER
FEED
OMNIGUARD �
2
Reference
USB
USB
PC
1
Hose to
Containment
AC Cord
Description of Controls
MENU - displays Main Menu or selects the highlighted
item for review or editing.
SELECT - press to view or change settings of the
highlighted item from the Main Menu.
▲/▼- scroll through menu selections or change
settings. Step through settings by pressing3/4.
SAVE - saves updated unit settings to memory after
editing, then exits to the Main Menu.
EXIT - exits to previous screen; if editing, exits without
saving any updated settings.
Menu Keys
Special Purpose Keys
STATUS - LED indicator shows operating status:
green = normal operation
green ashing = waiting to reach operating pressure
orange = within 5 millinches of an alarm condition
red ashing = alarm condition
"WC
-0.038



Printer Keys
PRINTER ON/OFF - turns the printer on and off. Printer status is
indicated by the printer symbol at the Monitor Screen.
PRINT JOB - press to print a current Job Report. Actual report type
is assigned to key in the Print Job Key Setup menu item. Cancel
printing by pressing any key.
PAPER FEED - advances the printer paper.
POWER ON/OFF - turns unit on and off.
INLET 1 - connector for pressure tubing from
containment.
INLET 2 - connector for sensing ambient
pressure from outside containment.
USB - connector for USB ash drive, also
supports accessories Remote Aux Alarm,
WiFi Adapter, Cellular Wireless Modem and
Telephone Autodialer.
USB PC - connector for sending data to and
from a PC.
Ports
ALARM SILENCE - silences the internal buzzer (and Remote Aux Alarm if
present) when an Alarm Condition occurs. Audible Alarm status is indicated
by the buzzer symbol at the Monitor Screen.
DISPLAY - toggles display thru 4 different screens: monitoring, pressure
only, inverted monitoring & inverted pressure only.
START JOB - press to begin a new Job. Assign a name to the new Job.
Ends previous Job and prints its Summary report.
HELP - provides information about the highlighted item or displays Help
Menu to select a topic for which more information is available.
Slot - route hose & AC cord through slot
to allow lid to close without pinching

Page 20 Omniguard™ 4 Owner’s Manual
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Zero Calibration
The Omniguard 4 does not require calibration between jobs. Internal
temperature compensation and other circuity provides unsurpassed
accuracy over a 30°- 130° Fahrenheit range.
Note: The clicking noise you hear the unit making is
it constantly compensating for zero offset drift. We
do recommend annual calibration verification.
To manually reset the zero point --
1. Disconnect the pressure tubing from INLET 1 and INLET 2.
2. Press MENU to view the Main Menu.
3. Highlight ZERO CALIBRATE using ▲/▼and press SELECT to
choose zero calibration.
4. Press SAVE to calibrate and return to the Main Menu.
Pressing any other key will return you to the
Monitor Screen without resetting zero.
When completed, the screen will display DONE. After a few moments
the unit will automatically return to the Monitor Screen.
Note: Allow the unit to warm up for 15 minutes
prior to zero calibrating. This permits the pressure
sensor to stabilize its readings. Zero calibration
can only be done when the pressure tubing is not
attached to the unit.
Using Help
To access Help information on a highlighted topic --
Press HELP. Detailed information about the unit’s current status
or the highlighted function will be displayed.
To access the Help Menu --
1. Press HELP twice.
2. Highlight the desired topic using ▲/▼.
3. Press SELECT to view the information available for that topic.
USB Ports
The Omniguard 4 now has two USB ports. The top port, labeled USB
supports the following devices:
• USB Flash Drive
• Remote Auxiliary Alarm (requires a USB Port Adapter)
• WiFi Adapter (requires a USB Port Adapter)
• Telephone Autodialer (requires a USB Port Adapter)
• Cellular Wireless Modem (requires a USB Port Adapter)
• Telephone Serial Modem (requires a USB Port Adapter)
Pressure Units
The pressure units used by the Omniguard 4 to display and record
pressure readings are selectable.
Pressure Units: (default is Inches WC)
• choices are Inches WC (“WC), Millimeters WC (mmWC) or
Pascals (Pa)
To select the desired pressure units --
1. Press MENU to view the Main Menu.
2. Highlight PRESSURE UNITS by using ▲/▼and press SELECT
to change the setting.
3. Use ▲/▼to change the pressure units to the desired
measurement.
4. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without
saving the updated settings.
Passcode Protect
The passcode protect feature allows the site manager to assign a
passcode that prevents unauthorized changes to the unit’s settings.
Once enabled, the four digit code must be entered to change any
setting. Settings may be viewed without the passcode.
Passcode Protect: (default is OFF)
Passcode: (default passcode is 0 0 0 0)
• passcode can be set to ON or OFF
• master passcode is 7 7 7 7
To set and enable the Passcode --
1. Press MENU to view the Main Menu.
2. Highlight PASSCODE PROTECTION from the Main Menu using
▲/▼and press SELECT to view or change the setting.
3. Press ▲/▼to select the passcode On or Off.
5. Press 3/4to move to the Passcode digits.
4. Set each digit of the passcode using ▲/▼.
5. Press 3/4to move from one digit to the next.
6. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without
saving the updated settings.
Note: In the event that the passcode is lost or
forgotten it can be reset and settings can be
changed using the master passcode.

Page 22 Omniguard™ 4 Owner’s Manual
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Once connected, you can --
- transfer the current Job Log or all Job Logs to the PC
- “remotely monitor” the Omniguard 4, observing pressure, status
and log updates as they occur on the job site.
- configure and set up multiple Omniguards, using the software
to upload configuration settings
Transferring a Job Log to the PC
The Job Logs stored in the Omniguard 4’s memory can be transferred
to a PC for permanent storage, statistical analysis and summary
report generation. Job Logs transferred to a PC can be reviewed and
reprinted any number of times.
To transfer a job log --
1. Install the Communication program on your computer.
2. Plug the USB cable (included with your Omniguard 4) into the
USB PC connector on the Omniguard 4.
3. Plug the other end of the cable into the appropriate USB connector
on your PC.
4. Run the Communication program and select Omniguard 4 from
the menu, then Job Logs, then Receive..... The logs selected will
be transferred to the PC and displayed in a window.
5. Job Logs can also be exported in a tab separated format so they
can be imported into Microsoft Excel for charting and analysis.
USB Flash Drive – Data Collection
The USB connector on the Omniguard 4 makes it possible to gather
Job Logs at the job site using a USB Flash Drive. The logs can be
viewed later on a PC using the Omniguard Communication software
available free @ www.engsolinc.com.
Transferring the Job Logs to a USB Flash Drive
The Job Logs stored in the Omniguard 4’s memory are copied as a
single Log file to a USB Flash Drive. The Omniguard Communication
software can read the Log file and separate it back into individual Job
Logs for storage on your PC. Each time a USB Flash Drive is inserted
into the Omniguard, all Job Logs are copied to the drive.
To transfer job logs --
1. The Omniguard 4 must be turned on and displaying the current
pressure.
2. Plug the USB Flash Drive into the USB connector on the
Omniguard 4. The display will change to indicate the log is being
copied to the USB Flash Drive. This could take several minutes
before completing.
The bottom port, USB PC is used to communicate between your PC
and the Omniguard 4. Using the Windows® compatible Omniguard
Communication software, job logs may be transferred to the PC
and the setup of multiple Omniguard 4’s can be easily handled. The
software is available as a free download @ www.engsolinc.com.
Note: This version of Omniguard 4 no longer has
the AUX ALARM port. To use a Remote Auxiliary
Alarm or Telephone Autodialer, you will need to
purchase the optional USB Port Adapter.
USB Port Status Symbols
The Omniguard 4 displays a variety of symbols to identify the status
of the USB connectors and the devices connected.
Communication
The Omniguard 4 has built-in USB ports to connect to a PC or to a user
supplied external serial modem. Before a PC can communicate with
an Omniguard 4, you must first download and install the Windows®
compatible Omniguard Communication software from our web site
@ www.engsolinc.com. Detailed instructions for installation and
operation of the software are included with the download.
The Omniguard 4 can communicate with a PC two different ways...
1. Connect a USB cable directly to the PC.
2. Connect via dialup to a PC. Requires the accessory USB Port
Adapter and a user supplied external serial modem with a phone
line connected to it. (See Remote Monitoring & Telephone Modem
Setup)
Analyzing device
Connected to PC
Cellular wireless
modem connected
Cellular wireless modem error
(not authorized, carrier not detected)
USB flash drive
connected
USB flash drive error
(full, write protected)
WiFi Adapter or
Telephone modem
connected
Telephone modem error
(bad init string, unknown)
USB Port Adapter
connected

Page 24 Omniguard™ 4 Owner’s Manual
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3. When the transfer is complete the display will show the name
of the new Job Log file created on the flash drive. The file name
will consist of the last 6 digits of the Omniguard 4 serial number
followed by a letter(s). Each file also has the time & date it was
copied onto the flash drive.
Example: If the Omniguard 4 serial number is
G406932, the rst log le will be 406932.OGL. The
second le will be 406932A.OGL, the third le will be
406932B.OGL, etcetera. The log les are stored in
the folder OMNIGUAR in the sub folder LOGS.
To view the logs, insert the USB Flash Drive into an open USB
connector on the PC. Using the Omniguard Communication software,
select “Open Log...” from the “File” menu. Navigate to the USB Flash
Drive, select the “OMNIGUAR\LOGS” folder and open the appropriate
log file.
Remote Auxiliary Alarm Setup & Usage
The Remote Auxiliary Alarm is a combination high-intensity strobe
light and 95db audible alarm on a 25 foot cable that connects to the
Omniguard 4 USB connector using the optional USB Port Adapter.
The Remote Auxiliary Alarm plugs into the AUX ALARM port on the
USB Port Adapter which in turn is connected to the USB port using
the USB cable (included with the Omniguard 4).
In an alarm condition, the Remote Auxiliary Alarm will activate. It may
be disabled by pressing the ALARM SILENCE key on the Omniguard
4. The Remote Auxiliary Alarm will only re-arm once the unit has
returned to normal operation.
WiFi Adapter & Off-Site Monitoring
The Omniguard 4 WiFi Adapter is an exciting new accessory that
enable off-site personnel to receive e-mail updates of your Omniguard
4’s job site status. The WiFi Adapter connects an Omniguard 4 to
an existing WiFi network and can send one or more of the following
alerts:
• WiFi Connection Established
• Connected (with date and time stamp)
• Lost Connection (with date and time stamp)
• Waiting for Pressure (with date and time stamp)
• Entered Normal Operation (with date and time stamp
• Normal Operation Hi/Lo Pressure Readings per set rate
time (with date and time stamp)
• Alarm Alert & Pressure Reading (with date and time stamp
• Low Battery Warning (with date and time stamp)
• Job Log (sent on a regularly scheduled time basis)
The WiFi Adapter also has the ability to e-mail you a full Job Log.
Eliminating the need to manually download logs at the job site. These
job logs are received via e-mail as an attachment.
The WiFi Adapter is configured by using the Omniguard
Communication software (available free at engsolinc.com). You can
determine what alerts/reports you wish to receive and how often you
receive them. The software gives you the flexibility to meet each
customers different needs.
The combination of the WiFi Adapter and software gives you the
freedom to monitor your Omniguard 4 without being there.
Telephone Autodialer Setup & Usage
The Telephone Autodialer is supplied with a 25 foot cable that
connects to the Omniguard 4 USB connector using the optional USB
Port Adapter. The Telephone Autodialer plugs into the AUTODIALER
port on the USB Port Adapter which in turn is connected to the USB
port using the USB cable (included with the Omniguard 4). The
Autodialer also requires a working land line telephone connection
box with an RJ11 jack.
In an alarm condition, the Autodialer will call the pre-programmed
phone numbers (up to 4) and play a pre-recorded message alerting
the off-site personnel of an alarm condition at the job site.
The Autodialer only activates once in a given time period (5, 10 or 15
minutes – the MESSAGE RATE setting). This prevents the autodialer
from calling more than once if there are multiple alarms occurring
within a short period of time. After the 5, 10 or 15 minute period has
elapsed, the autodialer will dial out again if the unit is still in an alarm
condition or when the next alarm condition occurs.
Message Rate
The Message Rate setting is the minimum amount of time the
Telephone Autodialer or Cellular Wireless Modem must wait between
multiple alarms before dialing or sending an new alert message in
response to a new alarm condition.
Message Rate: (default is 10 min)
• choices are 5 min, 10 min or 15 min
To change the Message Rate --
1. Press MENU to view the Main Menu.
2. Highlight MESSAGE RATE from the Main Menu using ▲/▼and
press SELECT to view or change the setting.
3. Press ▲/▼to change the setting to either 5, 10 or 15 minutes.
4. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without saving
the updated settings.

Page 26 Omniguard™ 4 Owner’s Manual
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Wireless Communication Using a Cellular Wireless Modem
The Omniguard 4 can automatically send alarm and job reports to
cell phones and e-mail accounts using the optional Cellular Wireless
Modem and USB PortAdapter. In addition it can respond to information
requests from wireless cell phones and via e-mail.
Wireless communication requires a specially configured MultiTech
MultiModem cellular wireless modem. This modem is similar to a
cell phone. It has a phone number and requires an active cell phone
account, using either a traditional plan with monthly payments or a
prepaid plan. Contact Engineering Solutions for more information on
acquiring a cellular wireless modem.
Master Cell Phone Numbers –
Two cell phone numbers can be programmed directly into the
Omniguard 4. A text message will be sent to each phone number when
the Omniguard. enters normal operation and when an alarm condition
occurs. The MESSAGE RATE setting determines the minimum time
between alarm text messages, this is to prevent frequent messages
if the unit is going in and out of the alarm state.
Phone numbers programmed directly into the Omniguard 4 will also
receive a Daily Summary report indicating how long the unit was in
normal operation, the number of alarms and the total time the unit
was in the alarm state. The Daily Summary is sent at 5:30pm each
day unless a Notify List has been selected (see below).
Notify Lists –
In addition to the two Master Cell Phone Numbers, the Omniguard
4can also sent alerts to personnel contained in a Notify List. The
Omniguard 4 can store up to four Notify Lists, only one can be active
at a time. A Notify List contains a list of wireless phone numbers and
e-mail addresses for a specific group of off-site personnel. Each
Notify List allows different phone numbers and/or e-mail addresses
for Alarm and Normal Operation notification and for Reports. The Lists
also allow the report notification time to be changed.
Notify Lists can only be created and programmed
into the Omniguard 4 using the Omniguard
Communications PC software. See the Help that
comes with the software for more information on
setting up Notify Lists.
Request Job Site Status via Cell Phone or E-mail –
It is possible to request information from an Omniguard 4 connected
to a cellular wireless modem. A text message or e-mail is sent to the
Omniguard 4 which replies with a report type requested. The available
reports include a Daily Summary, overall Job Summary, Current
Status and Settings. To get a complete list of reports the Omniguard
can provide send a text message or e-mail with a “0” (zero) in the
body of the message.
Text messages must be in the “short message” format and are sent to
the phone number of the wireless modem. E-mail message must be
in plain text format and should be sent to the e-mail address provided
by the wireless service provider.
Example: Where “nnnnnnnnnn” is the phone
number of the wireless modem, the e-mail
address is:
For T-Mobile it is“[email protected]. and
for AT&T it is “[email protected]”.
To congure and test the Cellular Wireless Modem setup --
1. Plug the modem cable into the SERIAL port on the USB Port
Adapter and the modem.
2. Connect the USB Port Adapter to the Omniguard 4 USB port using
the USB cable (included with your Omniguard 4).
3. Plug in the modem power adapter to turn the modem on. After the
modem is turned on you should see the wireless connection icon
displayed on the screen of the Omniguard 4 within two minutes.
4. Press MENU to view the Main Menu.
5. Highlight WIRELESS MODEM from the Main Menu using ▲/▼
and press SELECT to view or change the setting.
6. If desired, press ▲/▼ to change CELL # 1 Once the first digit of
the number has been changed, use3/4to move to the other
digits.
To delete the phone number, set the first digit
to a blank.
7. Press3/4to move to CELL # 2. Again use ▲/▼to change the
first digit of the phone number. Once the first digit of the number
has been changed, use 3/4to move to the other digits.
8. Press3/4to move to NOTIFY. Select the desired List of off-site
personnel to notify using ▲/▼.
9. Press3/4to move to TEST MODEM. When Test is selected,
pressing the SELECT key will cause a message to be sent to the
Cell # 1 and Cell # 2 phone numbers as well as any cell phone
numbers or e-mail addresses in the chosen Notify List.
10. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without saving
the updated settings.
Remote Monitoring & Telephone Modem Setup
Office personnel using their modem equipped PC can call the
phone number of the site and connect to the Omniguard 4 through
the USB Port Adapter and an External Serial Modem. The modem
plugs into the SERIAL port of the USB Port Adapter and requires a

Page 28 Omniguard™ 4 Owner’s Manual
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Status
& Info
Job Log
Remote
Monitoring
standard RJ11 phone plug and a working telephone line. Remote
off-site monitoring of Omniguard 4 is supported along with remote
job log transfers.
Caution: Transferring Job Logs to the PC via
modem may take up to 10 minutes (depending on
modem speed and the size of the Job Logs being
transferred). The Omniguard 4 is not actively
monitoring pressure during the log transfer. Once
the transfer is complete, the unit resumes monitoring
the pressure.
Note: The External Serial Modem is no longer sold by Engineering
Solutions. Almost any serial modem should work with the Omniguard
4 (a USB modem will not work). Modems with a speed of 14.4kbps or
faster are recommended. We have had problems with the Motorola
modems and can not recommend them for this application. The Practical
Peripherals modems seem to work quite well and can be had for as
little as $2 on eBay.
The external modem setup should be tested and its proper operation
confirmed before leaving the job site. Before performing the modem
test, use the Telephone Modem menu item to configure the
Omniguard 4 to work with the external modem you are using.
To congure and test the Telephone Modem setup --
1. Plug the modem cable into the SERIAL port on the USB Port
Adapter and modem.
2. Connect the USB Port Adapter to the Omniguard 4 USB port using
the USB cable (included with your Omniguard 4).
3. Plug the phone cable into the modem and a working telephone
line RJ11 phone jack. Turn the modem on.
4. Press MENU to view the Main Menu.
5. Highlight TELEPHONE MODEM using ▲/▼and press SELECT
to view or change the settings.
6. Press ▲/▼to change the Init Command setting if necessary.
7. Press3/4to move to TEST MODEM. Press SELECT to test
the modem settings. The Omniguard 4 will check the response
of the modem to the Init Command (set in step 6) and its status
will be displayed on the screen. If an error message appears, a
suggested solution will also be made.
8. Press SAVE to save the updated settings and return to the Main
Menu.
Pressing the EXIT key will return you to the Main Menu without saving
the updated settings.
To confirm that the modem is working, use a PC equipped with a
modem and the Omniguard Communication software to connect
to the Omniguard 4. See the Help available in the Omniguard
Communication software for more information.
Omniguard 4 Communication
Remote Monitoring Screen
Each section of the window can be opened or closed independently.
Remote monitoring occurs in real-time and does not affect the normal
operation of the Omniguard 4.

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The printer symbol will be displayed with a JAM message (see
Section 4: Turning Printer On/Off). After the paper jam is cleared,
use the PRINTER ON/OFF key to turn the printer back on.
Note: Do not apply oil or grease of any kind to the printer as this will
attract dirt and debris and could cause permanent damage to the
printer mechanism.
Problem: OMNIGUARD 4 unit does not enter normal operation
when turned on, and does not print.
Remedy: For normal operation, the monitored pressure must be
between the Alarm 1 and Alarm 2 setpoints. When the unit is
first turned on, the containment pressure will not likely be within
the alarm setpoints, and the unit will not print or log the pressure
readings. The unit will begin printing and logging the pressure
readings only after it senses containment pressure has reached
the normal operating window.
Problem: The unit displays Date & Time Not Set followed by
Factory Default after the power has been off.
Remedy: The internal clock battery is discharged. Leave the unit
plugged in for 24 hours to recharge the battery. It will be necessary
to update the Date and Time settings. The internal battery lasts
for an average of 30 days without recharging. It recharges
automatically any time the unit is plugged in. No other settings
need to be re-entered (they are saved in non-volatile memory and
do not require the internal clock battery).
Shipping & Repair
Please call the Engineering Solutions customer service department
for a return authorization. A Return Material Authorization number
(RMA #) will be assigned to aid in tracking your unit.
You may also e-mail to, [email protected].
Send the entire unit, enclosing a brief explanation of the problem
along with your company name, address, phone number and name
of the individual responsible for the unit. The RMA# must be clearly
marked on the outside of the box. No COD’s will be accepted. If
the original packing materials are not available, package the unit
securely in a sturdy container with enough padding to surround the
unit on all sides. The unit should not be able to be shift after packing.
Engineering Solutions will not be responsible for any damage which
may occur.
Ship To : Engineering Solutions, Inc.
6300 Southcenter Blvd, Suite 209
Tukwila, WA 98188
[phone]
Appendix A: Troubleshooting
If you experience problems with your Omniguard 4, use this section
to try to resolve the problem. For additional information consult with
your dealer or call Engineering Solutions at [phone] (8:00
a.m.-12:00 noon, 12:30-4:30 p.m. Pacific Time) and ask for Technical
Support, or e-mail [email protected].
Problem: The unit does not display the proper pressure.
Remedy: Check to see that the tubing is connected properly to the
INLET 1 port. The INLET 2 port should not be connected.
Remedy: Make sure that the tubing does not have a kink or a sharp
bend.
Remedy: Make sure that you are using the correct 3/16” ID tubing
size, and the end of the tubing on the inlet nozzle is not worn. If
it is worn or loose, cut off 1” of the tube using a sharp knife and
reinsert on the inlet nozzle.
Remedy: Make sure that the tubing connection into the containment
area is properly placed and secured as described in Section 4:
Work Area Setup.
Problem: Excessive momentary alarms.
Remedy: Adjust alarm setpoints to allow for normal air pressure
fluctuations caused by entries into work area or other equipment.
Make sure that you are within the minimum negative air pressure
requirements.
Remedy: If you suspect that wind may be causing rapid pressure
fluctuations, reduce the setting for Response Rate (see Section
4: Detailed Operation).
Problem: Printer indicates an alarm but audible alarm was not
activated.
Remedy: Confirm that the Audible Alarm is on. The buzzer icon should
be shown, in the right corner of the display, without an Xthrough
it (see Section 4: Alarm Silence , Disable and Rearming).
Problem: Printer is not working properly or a paper jam occurs.
Remedy: The printer may be turned off. Turn it on using the PRINTER
ON/OFF key.
Remedy: Thermal paper prints on one side only, the side away
from the paper roll. If installed incorrectly, the printer will be able
to advance the paper but unable to print on it. Make sure that
the paper is fed properly as described in Section 3: Loading the
Thermal Printer Paper.
Remedy: Paper jams can occur if the paper is allowed to fall back into
the printer head after tearing off a report. If a paper jam occurs,
the unit will automatically shut the printer off to prevent damage.

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Appendix B: Specications
Differential Pressure Range: +/-0.250” WC (+/-6.35mmWC,
+/-62.5 Pascals)
Accuracy: +/- .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 port
Pressure Units Displayed: “WC (Inches Water Column), mmWC
(millimeters Water Column), or Pa (Pascals)
Data Storage: 512,000 characters, approximately 120+ days of
readings (over 8,000 logged events) in non-volatile memory (no
battery req’d)
Display: Graphic Liquid Crystal Display (LCD) with adjustable
backlight and over 3.5 sq. inch viewing area
Internal Clock: the internal clock is powered by a self-charging
lithium-ion battery that provides 30+ days of clock operation when
AC or DC power is not present
Printer: 20 character wide thermal printer (uses 2.2” wide thermal
printer paper)
Printing/Logging Rates:
Normal Operation -- highest and lowest pressure readings
printed/logged at intervals of 5, 15, 30 minutes or OFF
Alarm Condition -- current pressure reading printed/logged 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 setpoints, 95db audible alarm with
flashing LED and on-screen warning indicate alarm condition
Pressure Inlets: Two 3/16” OD barbed hose connectors, 10 ft of
hose provided
USB Port: USB V1.1 Type-A
USB Port: USB V1.1 Type-B
Power: 115 VAC 60Hz with 6 ft power cord
(220 VAC 50Hz optional)
Case: Dimensions 9.25” x 7.5” x 4.5”, Shipping Weight 8 lbs., Material
is copolymer polypropylene with polycarbonate window in the lid,
handle and stainless steel hanging hook
Warranty: One Year Limited Warranty
Appendix C: Establishing a Containment Site
The Omniguard 4 monitors and records the differential pressure
between the INLET 1 port and the INLET 2 (Reference) port.
In abatement applications the Omniguard 4 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 4. Engineering Solutions Inc makes
no claims as to the proper usage or interpretation of the data
provided by the Omniguard 4.
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”.

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4. Calculating site airflow requirements:
A typical heavy duty HEPA fan/filter unit has a 1000 CFM (cubic
feet per minute) capacity with a new filter. Units are typically
derated by 25%, so a 1000 CFM unit is derated to 750 CFM by
the hygienists when calculating actual site airflow requirements.
Example #1: A room measuring 20 x 20 ft with a 10 ft ceiling
encloses 4000 CF of air. To meet the 4X per hour change
rate the fan/filter unit must be capable of pulling 267 CFM
of air (4000 x 4/60) from the containment area and maintain
a minimum negative pressure of -0.020”WC.
Example #2: Room size is 20 x 50 with 12 ft ceiling. Requires
(20 x 50 x 12) CF x 4 / 60 = 800 CFM or 2 units (of a 1000
CFM fan/filter unit... remember the fan/filter unit is derated
to 750 CFM).
Example #3: Room size is 100 x 100 with 16 ft ceiling.
Requires (100 x 100 x 16) CF x 4 / 60 = 10667 CFM or
15 fan/filter units (of a 1000 CFM unit).
5. The containment area pressure should be monitored at various
points to confirm adherence to abatement requirements.
Remember that air is a medium, and air pressure is not identical
throughout the containment area. The pressures at specific
locations within the containment area vary due to distance, room
temperature, proximity to openings, room geometry, etc. Typically
one manometer is used for every two “rooms” that have a doorway
and attached hallway, up to 1000 square ft.
5. Using a manometer that provides highly accurate pressure
readings, time stamped logging of all readings, and audible alarm
and printouts of all logged readings protects workers and the
public from accidental exposure to airborne hazards and provides
proof of containment to protect employers from environmental
contamination lawsuits.
NOTE: It is important that there be no kinks or
sharp bends in any part of the tubing.Any blockage
could inhibit accurate recording of the pressure in
the containment area.
Appendix D: Limited Warranty
Engineering Solutions warrants that all products, component parts
and accessories will, for a period of twelve (12) months from date of
purchase, be free from defects in material and workmanship under
normal use and service.
PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS
WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT OF
DEFECTIVE PARTS F.O.B., ENGINEERING SOLUTIONS, INC., 6300
SOUTHCENTER BLVD, SUITE 209, TUKWILA, WA 98188.
To keep this warranty valid, the purchaser must (a) return signed
Registration card to Engineering Solutions within fifteen (15) days
of purchase, (b) have promptly informed Engineering Solutions’
customer service department of any defects in writing, (c) properly
used, maintained and repaired the Product, and (d) have proof of
purchase.
This warranty does not cover normal wear and tear or defects due to
(a) improper or negligent handling or unauthorized modifications, (b)
defective or improper premises, chemical, electrochemical or electrical
influences, (c) weather or other influences of nature.
LIMITATIONS OF WARRANTY - THIS WARRANTY IS EXPRESSLY IN
LIEU OF ANY AND ALL OTHER WARRANTIES AND OBLIGATIONS
OF ENGINEERING SOLUTIONS OR ITS SUPPLIERS, EXPRESS OR
IMPLIED. ENGINEERING SOLUTIONS EXPRESSLY DISCLAIMS
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
LIMITATION OF REMEDY- Under no circumstances shall Engineering
Solutions or any of its suppliers be liable for any loss or damage,
including, but not limited to, loss or damage arising out of failure of
the Product to operate for any period of time, inconvenience, use of
rental or replacement equipment, loss of profit or other economic
loss, or general, direct, special, indirect, incidental or consequential
damages or property damages.
PRODUCT SUITABILITY - Many states and localities have codes
and regulations governing sales, construction, installation, and/or
use of products for certain purposes, which may vary from those in
neighboring areas. While Engineering Solutions attempts to assure
that its Products comply with such codes, it cannot guarantee
compliance, and cannot be responsible for how the Products are
installed or used. Engineering Solutions recommends that, before
purchasing and using a Product, purchasers review the Product
application, and federal, state and local regulations, to be sure that
the Product, installation, and use will comply with them.

Page 36 Omniguard™ 4 Owner’s Manual