Omega HHP460 User manual

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1-800-826-6342
© Omega 2021
User Manual
HHP
Smart Manometer
With Altimeter and Air Speed Tester

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Contents
General Information...................................................................................................................................4
Notification Statements...................................................................................................4
Glossary......................................................................................................................................5
General warnings and cautions.......................................................................................................7
Preventing injury ..................................................................................................................7
Safety symbols.......................................................................................................................7
Sample label for General Purpose Smart Manometers ...........................8
Fire or explosion hazard..................................................................................................8
For General Purpose Series .........................................................................................8
Do not exceed pressure limits....................................................................................9
Sensors..............................................................................................................................................................10
Omega Tethered Sensors ..........................................................................................11
Overview of the temperature and pressure sensors...............................11
How to zero Absolute Sensors................................................................................11
How to zero DN, DI, or CI sensors........................................................................13
Altitude and Indicated Air Speed................................................................................................14
ALT FEET or BEYOND MAX......................................................................................14
IAS MPH .................................................................................................................................14
Altitude Correction in Feet (Meters)...................................................................15
Sea Level Correction in Meters ..............................................................................16
Switch to Omega Tethered Sensor ............................................................................................18
Smart Manometer.....................................................................................................................................19
Battery and USB power................................................................................................19
Batteries...................................................................................................................................19
The display.............................................................................................................................21
Keypad: Description of the keys............................................................................23
The backlight........................................................................................................................25
Measurement units..........................................................................................................27
Damping..................................................................................................................................28
Data Logging........................................................................................................................29
Leak Test .................................................................................................................................30
Relief Valve Test .................................................................................................................33
Display information from two sensors...............................................................34
Auto O (Automatic shut o)...................................................................................35
What does the Zero (ø) key do?.............................................................................36
HHP400 Suite application.................................................................................................................37
How does HHP400 Suite benefit you?..............................................................37
HHP400 Suite and USB Drivers required .......................................................37
Tips for using HHP400 Suite....................................................................................38
Connection status.............................................................................................................41
Configuration button ......................................................................................................43
User Calibration button ................................................................................................47
Data Log button.................................................................................................................49

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TSV file format.....................................................................................................................51
Application button............................................................................................................61
Update button......................................................................................................................62
Omega Tethered Sensors: type and range ....................................................63
Overrange limit...................................................................................................................65
Temperature..........................................................................................................................65
Relative Humidity..............................................................................................................65
Vibration ..................................................................................................................................65
Ingress specifications....................................................................................................65
Altitude specifications...................................................................................................66
Indicated Air Speed specifications.......................................................................66
Keypad......................................................................................................................................66
Media Compatibility........................................................................................................67
Battery Type..........................................................................................................................67
EMC compliance ...............................................................................................................68
Dimensional specifications........................................................................................69
Weight.......................................................................................................................................69
Enclosure ................................................................................................................................69
Maintenance and cleaning................................................................................................................70
Cleaning...................................................................................................................................70
Prepare the Smart Manometer for storage....................................................70
Register your product...........................................................................................................................71
Find downloads and documents ...........................................................................71

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General Information
Notification Statements
Disclaimer
Every precaution has been taken in the preparation of this
manual. Nevertheless, Omega assumes no responsibility for
errors or omissions or any damages resulting from the use of
the information contained in this publication, including, without
limitation, incidental, special, direct or consequential damages.
OMEGA MAKES NO REPRESENTATIONS OR WARRANTIES
WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF
THE CONTENTS HEREOF AND SPECIFICALLY DISCLAIMS ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. Omega reserves the right to
revise this publication and to make changes from time to time in
the content hereof without obligation to notify any person of such
revision or changes.
In no event shall Omega be liable for any indirect, special,
incidental, consequential, or punitive damages or for any lost
profits arising out of or relating to any services provided by
Omega or its ailiates.
It is not possible for Omega to identify all foreseeable uses or
misuses, therefore all persons involved in commissioning, using,
or maintaining this product must satisfy their self that each
intended application is acceptable.
Copyright
This publication is proprietary to Omega and no ownership rights
are transferred. Neither this manual, nor any of the material
contained herein, may be reproduced without the prior written
consent of Omega.
Trademark information
Design Patent D769,141 for the Smart Manometer’s LCD display.
All other trademarks are the property of their respective owners.

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Glossary
Words and phrases with their definitions or explanations.
Words &
phrases
Definitions or explanations
Blinking • It indicates the active edit field on an edit
screen.
• It indicates the displayed value is not actively
changing (like Hold or stopped Test).
FS • FS is the abbreviation of Full Scale.
Home • Home is the first screen that displays after
turning on the Smart Manometer. It’s the
screen with measurements and units on it.
• After you press the Home key in many other
screens, the Smart Manometer returns you to
Home.
Key and
button
• A key refers to hardware push-buttons on the
keypad that you can press.
• A button refers to an area in HHP400 Suite
that you can tap or click to select functions.
Isolated • The word isolated refers to the sensing
element being separated from the media. It
is commonly used in the phrases Absolute
Isolated (AI) pressure and Compound Isolated
(CI) pressure.
Customer
Calibration
• Customer calibration refers to any calibration
done outside of Omega with non-Omega
traceability.
• Customer calibration includes: Multipoint
calibration or adjustment.
Omega
Tethered
Sensor
• An Omega Tethered Sensor always refers to
an external pressure sensor P2.
-- P1 -- • P1 on the display always refers to the internal
sensor.
-- P2 -- • P2 on the display always refers to the external
pressure sensor.
p1 .P2 • Data from the internal and external pressure
sensors display in two lines on the Smart
Manometer at the same time.

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Words &
phrases
Definitions or explanations
P1. • Data from the internal pressure sensor and
Omega Tethered Sensors temperature RTD
sensor display on the Smart Manometer at the
same time.
DIFF P1-P2 • The displayed result of the external pressure
measurement subtracted from the internal
pressure measurement.
Diff p2-p1 • The displayed result of the internal pressure
measurement subtracted from the external
pressure measurement.
--out- • --out- displays on the process readout
when the information readout is providing
information about exiting tests.
*P1 • The asterisk displays when you enable the
Sea Level Correction oset or enable the
Altitude Correction oset.

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General warnings and cautions
Preventing injury
Failure to follow all instructions could result in injury:
▪Read the entire manual before using the Smart Manometer.
▪Understand the contents before using the Smart Manometer.
▪Follow all safety warnings and instructions provided with this
product.
Safety symbols
The following table defines the safety symbols, signal words,
and corresponding safety messages used in the manual. These
symbols:
▪Identify potential hazards.
▪Warn you about hazards that could result in personal injury or
equipment damage.
Safety symbols Explaining the symbols
Indicates a potentially hazardous situation
which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in minor
or moderate injury.
Indicates information essential for
proper product installation, operation or
maintenance.

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Sample label for General Purpose Smart
Manometers
All HHP400 Series models are available for general-purpose use.
General Purpose (GP) versions are identified by the name plate
located on the rear of the unit under the protective rubber boot. A
sample of the General Purpose name plate is shown below:
Fire or explosion hazard
▪Do not use General Purpose versions in hazardous areas.
▪Do not use General Purpose versions in areas that may
contain flammable gas or vapors, combustible dusts or
ignitable fibers where an unintended spark can cause a fire or
explosion.
For General Purpose Series
Substitution of components may impair operation and safety.
▪Disconnect power before servicing.
▪Do not power the Smart Manometer with a combination of
new and old batteries.
▪Do not power the Smart Manometer with a combination of
batteries from dierent manufacturers.

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Do not exceed pressure limits
▪Do not exceed the Pressure Limits listed in the Specifications
section of this manual.
▪Failure to operate within the specified pressure limit could
result in minor or moderate injury.

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Sensors
Overview of Sensors
This Smart Manometer can display two measurements: one from
the internal sensor and one from the optional tether sensor.
▪P1 on this Smart Manometer always refers to the internal
sensor.
▪P2 on this Smart Manometer always refers to the external
sensor.
Use two wrenches to install or remove pressure
connections
Connection: 1/8 in. female NPT, 316L SS.
▪Always use a 3/4 in. wrench on the pressure manifold when
you install or remove the 1/8 in. NPT fitting.
▪Applying torque to the manifold can damage the plastic
enclosure and voids the warranty.
▪Do not over tighten.
Carefully equalize the pressure
Avoid these two issues with dierential sensors:
1. Connecting pressure to the incorrect pressure port on DN or
DI dierential pressure modules may cause damage to the
pressure sensor.
2. Applying pressure to either port before both connections are
made.
Apply pressure to both dierential ports at the same time.
Note: See Overrange limit in the section called Specifications
concerning overrange pressure limits. If over pressure damage
occurs, you must return the Smart Manometer to the factory for
sensor replacement.

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Omega Tethered Sensors
Overview of the temperature and pressure sensors
1. The P2 sensor sensor can be displayed with the P1 sensor.
2. When two sensors are displayed, no Units are displayed and
the Units key is disabled.
3. The Zero key is also disabled.
4. When a single sensor is selected it displays the measurement
units that were selected in HHP400 Suite.
Make an electrical connection
▪Align the red dot on the Smart Manometer with the red dot on
the Tether cable and push in.
▪Align the red dot on the Omega Tethered Sensors with the red
dot on the Tether cable and push in.
How to zero Absolute Sensors
Overview of the zeroing Absolute Sensors
The Smart Manometer is a stable and precise instrument.
However, on occasion the Smart Manometer should have a new
zero taken. The new zero removes a zero drift that can occur after
the Smart Manometer was last zeroed. The Smart Manometer can
be zeroed only if the new applied zero is within ± 1 % FS of the
original factory calibration zero. This prevents accidental zeroing
at atmospheric pressure or other relatively high pressures. If the
Smart Manometer is outside this limit, the Smart Manometer
cannot zero.
1. Referenced to Absolute Zero - This traditional and preferred
method takes a snapshot of the measured pressure when a
vacuum of less than 100 microns Absolute is applied to the
sensor.
2. Restore Factory Zero - This method restores the calibration
curve to the original zero taken at the factory.
Note: This feature is intended for comparison purposes, and
should not be used for real pressure measurement. This feature
does not compensate for any zero drift.
3. User Defined Oset (Zero) - With this method, you can
enter any pressure value when a known reference is applied
(for example: the local barometric pressure). The Smart
Manometer compares its actual measured value with the

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entered value and calculate a new zero reference based on the
oset.
Steps for zeroing Absolute Sensors
You can zero the Smart Manometer in one of three ways. The
following may appear in a dierent order depending on which
arrow key you press. When an absolute sensor displays on-screen
as P1 or P2, press the Zero key to see one of the three sets of
characters below and the following three messages
On-screen
message Explanations
TAP  TO
CHOOSE REF
• Tapping the Accept key selects the displayed
reference.
ARROWS TO
CHANGE REF
• Tapping an Arrow key changes the displayed
reference.
X Cancels
• Tapping the Cancel key cancels the zero
request.
ab5 0 • This is the on-screen abbreviation for
Absolute Zero.
dflt • This is the on-screen abbreviation for Default.
• If you want to restore the Factory Zero on a
sensor, press the Accept key when you see
these characters appear.
u5Er 0 • This refers to User Defined Oset (Zero). You
can set an absolute reference point other than
zero.

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How to zero DN, DI, or CI sensors
1. Disconnect from a pressure source and vent the pressure port
to atmosphere.
1. Do not remove the factory installed P2 plug if it is present.
2. The display should read close to zero.
2. Press the Zero key.
The top line displays dashes ------.
3. The process is complete when the Smart Manometer returns
to the Home (Measurement Units) screen.
4. If someone has turned on the Password Required For Future
Access feature in HHP400Suite, the password feature does
not prevent you from zeroing the Smart Manometer.
Note: You can only zero the Smart Manometer if the new zero
value is within ± 5 % (of FS) of the original factory calibrated
zero. If the zero procedure generates a new zero reference
outside this limit, the procedure fails. Factory service may be
required.
5. You can turn o the Zero function in HHP400 Suite by
deselecting Allow zero adjust (Ø) in the Display Functions list.

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Altitude and Indicated Air Speed
ALT FEET or BEYOND MAX
When BEYOND MAX appears on screen
When BEYOND MAX appears on-screen instead of ALT FEET, the
calculated altitude exceeds 36,000 feet.
Note: Don’t confuse BEYOND MAX with an overrange condition.
If the sensor is outside the calibrated range, the HHP400
displays MEAS ERROR and the sensor may be damaged.
Display altitude in feet or meters
1. Press the Backward key to display ALT FEET (Altitude in Feet).
2. Press the Units key when ALT FEET is on-screen to switch
between FEET and METER and back to FEET.
IAS MPH
When you display IAS MPH (KNOTS or KM/H) on-screen, the
current, ambient pressure—the uncorrected barometric pressure—
is measured and is the reference pressure used for calculating air
speed.
When you switch from the IAS MPH screen to one of the other
display functions, the HHP400 does not hold that measurement
in memory. When you switch back to the IAS MPH screen, a new
pressure measurement is recorded and used as the reference
barometric pressure in the IAS MPH calculated air speed.
Switching from the IAS MPH screen to another display function,
and then switching back to the IAS MPH screen again while in
motion (IAS > 0), displays the wrong speed since IAS is reset
to zero (current measured pressure to reference barometric
pressure).
1. Press Backward two times from the home screen to display
IAS MPH (mi/h).
2. Press Units key when IAS MPH is on-screen to switch from
MPH to KNOTS to KM/H and back to MPH.

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Altitude Correction in Feet (Meters)
This User Defined Altitude function is useful in determining an
elevation change from a map elevation reference or from a survey
trig marker elevation. Follow the on-screen instructions to set up
the HHP400 to display altitude based on data you enter.
1. Press the Backward key three times from the home screen to
display ALTITUDE CORRECTION IN FEET TAP √TO CHANGE.
2. Press the Accept (√ ) key to enter the change screen.
3. The HHP400 displays the following message:
ENABLE ALTITUDE OFFSET? √-YES X-NO
1. Pressing the Cancel (X) key returns you to the ALTITUDE
CORRECTION IN FEET TAP √TO CHANGE screen.
2. Pressing the Accept (√) key displays Altitude Oset
options:
Note: When you Enable the Altitude Oset, an asterisk (*)
appears on the Home, the ALT FEET, and IAS MPH screens
to indicate that either an Altitude Oset or Sea Level Oset
has been set or both of Osets have been set. Pressing the
Information key displays ON or OFF for each active oset so
you can easily determine which osets are active.
4. The HHP400 displays the following message:
ALT OFFSET IN FEET √SAVES X CANCELS 0 CLEARS
1. Pressing the Up or Down arrows on the keypad changes
the first digit and pressing the Right or Left arrows moves
the blinking cursor right or left. Enter your Defined Altitude
data by using the arrow keys.
2. Information: 0 Clears refers to the Zero key. Pressing it
clears any numbers you entered after pressing the Up or
Down arrow keys.

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3. Information: Pressing the Cancel (X) key returns you to
the ALTITUDE CORRECTION IN FEET TAP √TO CHANGE
screen.
4. Information: The Accept key saves your ALT OFFSET IN
FEET data.
Sea Level Correction in Meters
Important: You can’t change from meters to feet; Sea Level
Correction is always in meters.
1. Press the Backward key four times from the home screen to
display the following message:
SEA LEVEL CORRECTION IN METERS TAP  TO CHANGE.
1. ENABLE SEA LEVEL OFFSET? √-YES X-NO
2. NO returns you to the SEA LEVEL CORRECTION IN
METERS TAP  TO CHANGE screen.
3. YES takes you to the edit screen. Pressing the Up or Down
arrows on the keypad changes the first digit and pressing
the Right or Left arrows moves the blinking cursor right
or left. Enter your Sea Level Correction data by using the
arrow keys.
4. While in the edit screen, the HHP400 displays the
following message: SEA LEVEL CORRECTION √SAVES
XCANCELS 0CLEARS

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5. Information: 0 Clears refers to the Zero key. Pressing it
clears any numbers you entered after pressing the Up or
Down arrow keys.
6. Information: Pressing the Cancel (X) key returns you to
the ALTITUDE CORRECTION IN FEET TAP √TO CHANGE
screen.
7. Information: The Accept key saves your ALT OFFSET IN
FEET data.
Note: Barometric pressures provided by the National Weather
Service and used at airports are always corrected to sea level.
Note: When you Enable the SEAL LEVEL CORRECTION Oset,
an asterisk (*) appears on the Home, the ALT FEET, and IAS
MPH screens to indicate that either an Altitude Oset or Sea
Level Oset has been set or both of Osets have been set.

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Switch to Omega Tethered Sensor
1. Attach an Omega Tethered Sensor to the HHP460.
2. From the Home screen, press the Up arrow to view all the
available information and options for the Omega Tethered
Sensor.
3. Use the optional HHP400 Suite application to configure,
calibrate, and update the Smart Manometer and use Data Log
for the Omega Tethered Sensors.
The following display functions are not available for the Omega
Tethered Sensor:
1. SEA LEVEL CORRECTION IN METERS TAP  TO CHANGE
2. ALTITUDE CORRECTION IN FEET TAP  TO CHANGE
3. IAS MPH
4. ALT FEET (Altitude Display) or BEYOND MAX.

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Smart Manometer
Battery and USB power
When you turn on the Smart Manometer, it draws power from the
batteries and the battery icon displays in the bottom row. When
you press the information button, it displays Batt %.
When you turn on the Smart Manometer and plug in the USB
cable to the computer, the Smart Manometer switches to the
power supplied by the USB cable. The battery icon disappears
from the bottom row. When you press the information button, it
displays USB POWER.
Do not use the USB in hazardous locations.
Batteries
Remove and replace batteries in non-hazardous (safe) areas only.
Turn o the backlight
▪Turn o the backlight when you need to conserve battery
power.
▪The backlight is dimmed when the Smart Manometer is in low
battery mode.
Suggested brands of batteries
The following is a suggested list of batteries.
▪Duracell MN1500
▪Duracell PC1500
▪Energizer EN91
▪Panasonic LR6XWA
▪Rayovac 815
▪Varta 4906
Note: The Smart Manometer is powered by four 1.5 volt AA size
batteries.

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Know your batteries
▪Never mix batteries—not by manufacturer or by size, by
capacity, or by chemistry.
▪Never mix old and new batteries.
▪Remove all four batteries in the Smart Manometer at the same
time.
▪Replace all four batteries with batteries from the same
package or with the same expiration date.
Install the batteries
1. Turn over the Smart Manometer so the display faces down.
2. Remove the two screws on the battery cover with the Phillips-
head screwdriver by turning them counterclockwise.
3. Insert the four AA batteries.
Note: Pay attention to the positive (+) and negative (−) battery
polarity markings at the bottom of the compartment.
4. Replace the battery cover.
5. To secure the cover, torque the screws clockwise 2 in. lb.
maximum.
6. Do not over tighten.
To prevent internal damage to circuitry, do not substitute screws
with lengths that are dierent from the screws Omega provided to
you.
Watch for the low battery indicator
The battery indicator on the display shows the current charge.
Note: Be prepared to change batteries when you see the outline
of the battery icon and the outline of the battery icon flashes.
You have approximately 2 hours of run time following a low
battery warning.
Refer to battery manufacturers’ instructions
Visit the website of the battery manufacturer to learn more about
the care, storage, shipping, use, disposal, and recycling of your
batteries.