Omega HHP9303 User guide

User’s Guide

Extended Warranty

Program

SM

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MADE IN TAIWAN

HHP9303

Pressure Meter

with Datalogging SD Card

OMEGAnet®Online Service Internet e-mail

omega.com [email protected]

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified

Canada: 976 Bergar

Stamford, CT 06907-0047
Toll-Free: 1-800-826-6342 Tel: [phone]
FAX: [phone] e-mail: [email protected]

Laval (Quebec), H7L 5A1 Canada
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [email protected]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

Customer Service: 1-800-622-2378/1-800-622-BEST
Engineering Service: 1-800-872-9436/1-800-USA-WHEN

Mexico En Español: 001 [phone] FAX: [phone]
Latin America [email protected] e-mail: [email protected]

®

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Servicing Europe:

Benelux: Managed by the United Kingdom Office

Czech Republic: Frystatska 184

France: Managed by the United Kingdom Office

Germany/Austria: Daimlerstrasse 26

United Kingdom: OMEGA Engineering Ltd.

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Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [email protected]

733 01 Karviná, Czech Republic
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D-75392 Deckenpfronn, Germany
Toll-Free: 0800 6397678 TEL: [phone]
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One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [email protected]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

TABLE OF

CONTENTS

Table of Contents

Section Page

Introduction ................................................................................. 1

Key Features ................................................................................ 2

Operating Instructions .............................................................. 2

What’s in the case ................................................................ 2

Setup ....................................................................................... 4

Normal operation ..................................................................7

Holding and storing measurements ..................................8

Automatic vs. manual datalogging ....................................9

Transferring data from an SD card to a computer ........10

Specifications ............................................................................ 12

Maintenance and Troubleshooting Tips ...............................13

M4988/0411

INTRODUCTION

Thank you for purchasing the OMEGA® HHP9303 Pressure Meter
with Datalogging SD Card. Please read this user’s manual carefully
and thoroughly before using the instrument.

The HHP9303 is a general-purpose handheld instrument suitable for
measuring pneumatic and hydraulic pressures in automotive,
mechanical engineering, HVAC/R (heating, ventilation, air­conditioning, and refrigeration) and food-processing environments.

The HHP9303 has the performance and features needed to satisfy the
most demanding aspects of the above applications. It works with any of
eight optional pressure sensors, each with a different full-scale range
(2, 5, 10, 20, 50, 100, 200 and 400 bar). A front-panel pushbutton
enables rapid switching among sensors with no need for precalibration.
Another front-panel pushbutton facilitates fast switching among the
following 10 commonly used pressure units: Bar, psi, kg/cm2, mm Hg,
inches Hg, meters H2O, inches H2O, atmospheres, hectopascals (hPA)
and kilopascals (kPA ).

Because it is microprocessor-based, the HHP9303 can make full use of
the portability, reliability and large storage capacities that SD memory
cards offer. Pressure measurements can be made automatically at any
sampling rate between one second and nine hours. After time-stamping
and storing the measurements on an SD card plugged into the
instrument (a process called datalogging), the user can remove the card
and plug it into to a laptop or desktop computer either directly or via a
USB card reader. The data logs are stored on the card as files with the
.xls extension, which can be opened by Microsoft’s Excel application.

The HHP9303 has a backlit 2-1/2 inch diagonal display and is powered
by six AA Alkaline batteries or an optional 9-VDCdd AC adapter.

1

KEY FEATURES

• Measures hydraulic or pneumatic pressure using optional

sensors with full-scale ranges from 2 to 400 bar

• Sensors calibrated by single push of a button

• Ten different pressure units selectable via front panel

• Displays maximum and minimum readings

• Performs real-time automatic datalogging at sampling time

settable from 1 second to 9 hours

• Also supports manual logging and changing of card storage

location

• Outputs Excel-compatible data logs

• Accepts SD memory cards of up to 16 GB capacity

• Big (2.5-inch diagonal) front-panel green backlit LCD is easy

to read

• Auto power off function

• Powered by six AA batteries or optional 9V AC/DC adapter

OPERATING INSTRUCTIONS

What’s in the case

The HHP9303 comes fully assembled along with a 2 GB SD memory
card with this user’s manual.

Optional accessories available from OMEGA include eight optional
pressure sensors, each with a different full-scale range (2, 5, 10, 20, 50,
100, 200 and 400 bar) and a 9VDC adapter for a 110V power supply.
See the Optional Accessories section of this manual for more details.

Figure 1 shows all of the controls and indicators on the front, back, top,
bottom and right side of the HHP9303. It also shows the main
components of an optional pressure sensor. Familiarize yourself with
the positions and functions of these controls, indicators and ports
before moving on to the setup procedure.

2

1. The HHP9303’s controls and indicators and other physical
features

1-1 Liquid-crystal display
1-2 POWER button
1-3 HOLD/ESC button
1-4 REC/ENTER button
1-5 ▲ button
1-6 ▼button
1-7 TIME button
1-8 LOGGER SET button
1-9 Kickstand
1-10 Battery compartment cover
1-11 Battery compartment cover screws
1-12 Tripod attachment nut
1-13 Pressure sensor socket

3

1-14 Socket for 9VDC AC adapter
1-15 Reset button
1-16 RS232 output jack
1-17 SD card socket
1-18 Pressure sensor port
1-19 Pressure sensor
1-20 Pressure sensor connector

Setup

1. Choose the power source. Before using the HHP9303, be sure

it is powered by fresh batteries or an optional 9VDC AC
adapter plugged into the bottom jack on its right side
(callout 1-14).

To remove the battery compartment cover, remove the two screws
holding it in place (callout 1-11). Then install six AA batteries in
the correct orientation, using the polarity marks on the inside of the
compartment as a guide. Replace the cover by replacing the two
screws.

2. Install an SD card. To prepare for setup, also install the
supplied 2 GB SD memory card or another card with a capacity
from 1 GB to 16 GB in the socket on the bottom of the
HHP9303 (callout 1-17). When installing the card, make sure
its gold contacts are facing front and push the card into the
socket until you hear a click. To remove the card, push it in
until you hear a click and the card pops out.

Now power on the instrument by pressing the POWER button (callout
1-2) to generate a short beep. (To power off the HHP9303, press the
POWER button and hold it until the instrument responds with a
long beep.)

When the pressure meter powers on, a series of transient startup
screens will briefly appear. Once the display has stabilized, perform the
following seven setup steps in the order presented.

1. Format the SD card. Press the LOGGER SET button (callout
1-8) and hold it for at least five seconds, until “Sd-F” appears in
the lower half of the display. Quickly (within three seconds)
press the REC/ENTER button.

4

(If you press buttons too slowly in setup mode, the screen will revert to
the normal display. To return to the setup sequence, press and hold the
LOGGER SET button again. To move ahead to the next field in the
sequence or to the next parameter, press the HOLD/ESC button.)

Pressing the REC/ENTER button causes the word “no” or
“yES” to appear over the term “Sd-F”. Press the SET▼ button
to make a selection. Choose “yES” whenever a new SD card is
being used, or when a used card is being repurposed (from use
with another SD card instrument or a camera, for example) and
all data on it is to be erased. Choose “no” to preserve any data
on a card previously used with this instrument.

If you choose “yES”, after you press the REC/ENTER button
the instrument will prompt you to confirm that decision by
displaying the term “Ent” below “yES” and sounding three
beeps. To confirm that you want to begin the erasure/formatting
procedure, press the REC/ENTER. “Ent” will then flash several
times and the instrument will sound another three beeps to
confirm that the SD card has been erased and formatted.

2. Set the date and time. Once the SD card has been set up, the
word “dAtE” will appear in the center of the display, along with
the flashing value “00.00.00” at the lower left, above
“yy.mm.dd”. Set the current year by pressing the ▼ or ▲
button repeatedly until the correct value appears above “yy”.
Press the REC/ENTER button to store the setting. The next
screen that appears will have the value above “mm” flashing.
Use the ▼ or ▲ button to navigate to the current month and
press the REC/ENTER button to store the setting. When the
next screen flashes the value above “dd”, again use the ▼ or ▲
button to navigate to the current day and press the REC/ENTER
button to store the setting.

Once you have set the date, the display will prompt you to set the
hour, minute and second of the current time. Again use the ▼ or ▲
buttons to navigate to the correct values, and the REC/ENTER
button to store the settings.

3. Set the datalogging sampling time. Once the date and time
have been set and stored, the display will show a value below

5

the letters “SP-t”. Press the ▼ or ▲ button to decrease or
increase the flashing hour value until the desired number
appears below “SP-t”. Press the REC/ENTER button to store
that setting. The minutes value will then flash. Press the ▼ or
▲ button to decrease or increase the value and then press the
REC/ENTER button to store that setting. Finally, press the ▼
or ▲ button to decrease or increase the flashing seconds value
and then press the REC/ENTER button to store that setting.
This completes the setting of the pressure meter’s datalogging
sampling time.

4. Enable or disable auto power off. Once the sampling time has
been set and stored, the display will show the word “yES’ over
the term “PoFF”. Press the ▼ button until the desired automatic
power off management scheme (“yES” for enable; “no” for
disable) is displayed. Press the REC/ENTER button to store the
selection. If enabled, the power off function shuts off the
HHP9303 after a period of inactivity of ten minutes.

5. Enable or disable the beeper. Once the auto power off
function has been enabled or disabled, the display will show the
word “yES” over the word “bEEP”. Press the ▼ button until
the desired setting (“yES” or “no”) is displayed, and then press
the REC/ENTER button to store the selection.

6. Choose a decimal point or comma to represent the decimal
division between integers and fractions (for example,
American-style 20.88 vs. European-style 20,88). Once the
beeper has been enabled or disabled, the display will show the
word “bASIC” above the phrase “dEC”. Press the ▼ button to
make “bASIC” (American style) or “Euro” appear in the upper
display, as desired. Press the REC/ENTER button to store the
selection.

7. Choose the full-scale range of the optional pressure sensor.
Once the format of decimal divisions has been set and stored,
the term “tyPE” will appear in the lower part of the display.
Above it will appear the default value “2”, for a 2-bar sensor.
Press the ▼ or ▲ button until the value displayed matches the
full-scale range, in bar, of your optional sensor. OMEGA offers
pressure sensors with full-scale ranges from 2 bar to 400 bar.
Press the REC/ENTER button to store the setting.

6

Once the pressure sensor’s range has been set and stored, the display
will then either return to the first of the seven steps in the setup
sequence--choosing whether or not to format the SD memory card—or
show the term “ESC”. If “ESC” appears, press either the HOLD/ESC
button or the LOGGER SET button to exit the setup procedure and
enter normal operating mode.

Normal operation

1. To prepare to measure pressure:

• Plug the connector (callout 1-20 of Fig. 1) of an optional
pressure sensor (callout 1-19) into the socket on the top of the
meter (callout 1-13).

• Power on the meter by pressing the POWER button. Press the
▼ button (which has the word “Sensor” stenciled above it)
once to confirm that the sensor’s full-scale range is the same as
the one you stored as Step 7 of the setup procedure.

• Press the ▲ button (which has the word “Unit” stenciled above
it) repeatedly until the desired pressure unit appears on the
display. The table below correlates available pressure units with
their display readings.

Pressure unit Display reading

psi PSI

inches Hg In Hg

inches H2O In H2O

hPA hPA
kPA _PA

bar bAr

kg/cm2 _g C2

mm Hg --Hg

meters H2O -t H2O

Atmospheres AtP

After confirming the display unit, power off the meter and then
power it on again. This will make the chosen unit the default
display unit.

If the display does not show a zero value after the pressure
sensor has been plugged into the instrument, press the TIME
button (which has the word “Zero” stenciled above it) on the

7

front panel and hold it for at least 10 seconds, until the display
shows a zero reading.

2. To measure pneumatic or hydraulic pressure, connect the
sensor’s port (callout 1-18) to the equipment you wish to
measure. The HHP9303 will measure the pressure at the
interface point and display it in the unit you selected.

Whenever the HHP9303 is in measurement mode, you can turn off the
backlight (which is on by default) by briefly pressing (but not holding)
the POWER/ESC button. To reactivate the backlight, briefly press the
button again.

Whenever the instrument is in measurement mode, you also can check
the current date and time by briefly pressing the TIME button. Doing
so causes both values to appear briefly at the lower left of the display.

Holding and storing measurements

3. To hold a measured value of pressure, press the HOLD/ESC
button during the measurement. Doing so will cause the word
“HOLD” to appear at the top of the display. Pressing the
HOLD/ESC button again releases the hold.

4. To record and recall readings, press the REC/ENTER button
while making measurements. This will make the term “REC”
appear at the top of the display. Pressing the REC/ENTER
button again, briefly, will make the term “MAX” appear to the
right of “REC” and switch the display to the maximum value
stored in memory during the last recording session. Pressing the
REC/ENTER button again, briefly, will make the term “MIN”
appear to the right of “REC” and switch the display to the
minimum value stored during the last session.

5. To exit recording mode, press and hold the REC/ENTER
button for at least three seconds, until the term “REC”
disappears from the top line of the display. The display will
then revert to showing the current reading.

8

Automatic vs. manual datalogging

The HHP9303 can automatically log data at a user-selected sampling
period from 1 second to 9 hours. To view the sampling time for which
the instrument was set up, press the LOGGER SET button (which has
the words “Sampling check” stenciled below it) once. To change the
sampling time, perform Step 3 of the setup procedure.

6. To start automatic datalogging, press the REC/ENTER
button once. The top line of the display will then show the term
“REC”. Pressing the LOGGER SET button at this point will
make REC flash and add the flashing term “LOGGER” at the
top right of the display. This indicates that the instrument is
currently storing measured values and their time stamps in
memory.

7. To pause automatic datalogging, press the LOGGER SET
button once; this action makes the flashing term LOGGER
disappear from the top right of the display and changes the term
“REC” from flashing to constant. Pressing the LOGGER SET
button again resumes automatic datalogging.

8. To end automatic datalogging, press the REC/ENTER button
and hold it for at least two seconds. This action causes the
“REC” message to disappear.

9. To log data manually, set the sampling time to zero using the
procedure detailed earlier. Then press the REC/ENTER button
once. The display will show the term “REC” on the top line, a
value in the middle, and below it the letter “P” on the left and a
number from 1 to 99 on the same line to the right. The number
indicates the position on the SD card that will be used to store
manually logged data.

Now press the LOGGER SET button. This will cause the beeper to
sound and the term “LOGGER” to briefly appear at the upper right
of the display. As in automatic datalogging mode, in this mode the
instrument is storing measurements and their time stamps on the
SD card.

In manual datalogging mode, however, measurements are being stored
continuously (with a sampling time of zero), and their locations on the
card can be changed.

9

10. To change the storage location of manually logged data,
press the ▼ button once; this causes the “P” to disappear from
the left side of the display and the value on its line to begin
flashing. Once the flashing begins, you can use the ▼and ▲
buttons to change the flashing value to any number between 1
and 99. Once you have chosen the storage location, press the
REC/ENTER button to save the setting. This causes the value
to stop flashing and the “P” to return.

11. To end manual datalogging, press the REC/ENTER button
and hold it for at least three seconds. This action causes the
“REC” message to disappear from the top line of the display.

Transferring data from the SD card to a computer

After automatic or manual datalogging of measurements, remove the
SD card from the HHP9303 and plug it into your computer either
directly (if it has an SD card slot) or through an SD card reader.

Because the files containing time-stamped data logs have the extension
.xls, they open in Microsoft’s Excel application. Figures 2 and 3 show
two kinds of Excel presentations: a data-only screen and a graphics­only screen.

10

2. Typical Excel data-only screen

3. Typical Excel graphics-only screen

11

SPECIFICATIONS

Embedded microcontroller

Custom one-chip LSI device
Display type

Liquid-crystal with green backlight
Display size

2.05 x 1.5 inches (52 x 38 mm)
Displayed pressure unit

bar, psi, inches Hg, inches H2O, hPA,
kPA, kg/cm2, mm Hg, meters H2O,
atmospheres
Measurement accuracy

± 0.5% of full-scale reading + 1 digit
Stored readings

Maximum, minimum
Datalogging sampling time

Settable between 1 second and 8 hours,
59 minutes, 59 seconds (in automatic
datalogging mode)
SD card capacity

1 GB to 16 GB
Settable parameters

Date, time, auto power off, beep
sound,sampling time, decimal point or
comma decimal division, optional
pressure sensor’s full-scale range (2, 5,
10, 20, 50, 100, 200 or 400 bar)
Operating temperature

32 to 122oF (0 to 50oC)
Operating relative humidity

0 to 85%
Power supply

Six Alkaline AA batteries or optional
9-VDC AC adapter
Power consumption

5 mADC (normal operation, with
backlight off and SD card not saving
data); 25 mADC with backlight on and
card saving data; 37 mADC with
backlight on and card saving data
Dimensions of meter

6.97 x 2.68 x 1.77 inches
(177 x 68 x 45 mm)
Weight of meter

0.77 lb (350 g)

12

MAINTENANCE & TROUBLESHOOTING TIPS

Keep the pressure sensor(s) clean and protected from the elements
when not in use.

When the icon appears in the left corner of the display, it’s time
to replace the six AA batteries that power the instrument (although
measurements will remain valid for several hours after the low-battery
indicator first appears). Replacing the batteries requires removing the
two screws that hold the battery compartment cover in place, as
explained earlier. After inserting fresh batteries in the correct
orientation, tighten the screws to secure the cover.

If the meter “freezes” (like a computer) and buttons become
unresponsive, try resetting the instrument by pushing the RESET
button on its right side (callout 1-15 of Fig. 1) with the end of a paper
clip.

Remove the batteries when storing this product for an extended period
of time.

Do not drop or disassemble the meter or immerse it in water.

13

WARRANTY/DISCLAIMER

OMEGA ENGI NEERING, INC. warra nt s this uni t to be free o f defects in materials and
workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds
an additional one (1) month grace period to the normal one (1) year product warranty to
cover handling and shipping time. This ensures that OMEGA’s customers receive maximum
coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or
written request. Upon examination by OMEGA, if the unit is found to be defective, it will be
repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting
from any action of the purchaser, including but not limi te d to m is ha nd li ng , impr op er
interfacing, operation outside of design limits, improper repair, or unauthorized modification.
This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows
evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture
or vibration; improper specification; misapplication; misuse or other operating conditions
outside of OMEGA’s control. Components in which wear is not warranted, include but are not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes
liability for any damages that result from the use of its products in accordance with
information provided by OMEGA, either verbal or written. OMEGA warrants only
that the parts man ufactured by the company will be as specified and free of
defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY
KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL
IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total
liability of OMEGA with respect to this order, whether based on contract, warranty,
negligence, indemnification, strict liability or otherwise, shall not exceed the
purchase price of the component upon which liability is based. In no event shall
OMEGA be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1)
as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or
activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or
with any nuclear installation or activity, medical application, used on humans, or misused in
any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER
language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from
any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.

RETURN REQUESTS/INQUIRIES

BEFO RE RET URNIN G ANY PRO DUCT( S) TO OMEGA, PURCH AS ER MUST OBT AIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT
(IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be
marked on the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.

FOR WARRANTY
the following information available BEFORE
contacting OMEGA:

1. Purchase Order number under which
the product was PURCHASED,

2. Model and serial number of the product

under warranty, and

3. Repair instructions and/or specific

problems relative to the product.

OME GA’s poli cy is to make running ch ang es , not model ch ang es, whene ver an im prove men t is po ssibl e.
This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2011 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without
the prior written consent of OMEGA ENGINEERING, INC.

RETURNS, please have

FOR NON-WARRANTY REPAIRS,

consult
OMEGA for current repair charges. Have the
following information available BEFORE
contacting OMEGA:

1. Purchase Order number to cover the

COST of the repair,

2. Model and serial number of theproduct, and

3. Repair instructions and/or specific problems

relative to the product.

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