Omega | PHH-SD1 | Owner Manual | Omega PHH-SD1 Owner Manual

Omega PHH-SD1 Owner Manual
TM
User’s Guide
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omega.com
e-mail: info@omega.com
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NORWALK, CT
PHH-SD1
pH Meter
With Data Logging SD Card
omega.com info@omega.com
U.S.A.
Headquarters:
Servicing North America:
Omega Engineering, Inc.
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660
Fax: (203) 359-7700
e-mail: info@omega.com
For Other Locations Visit omega.com/worldwide
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.
TABLE OF
CONTENTS
Table of Contents
Section
Page
Introduction ....................................................................................................... 1
Key Features ....................................................................................................... 1
Operating Instructions ..................................................................................... 2
What’s in the case ....................................................................................... 2
Setup ..............................................................................................................3
Calibrating the pH electrode ......................................................................5
Normal operation..........................................................................................6
Holding and storing measurements..........................................................7
Automatic vs. manual datalogging............................................................7
Transferring data from an SD card to a computer..................................7
Specifications ................................................................................................... 10
Maintenance and Troubleshooting Tips......................................................10
M4987/0411
INTRODUCTION
Thank you for purchasing PHH-SD1 pH Meter with Datalogging SD Card. Please read this
user’s manual carefully and thoroughly before using the instrument.
The PHH-SD1 is a general-purpose handheld instrument suitable for measuring the pH and
oxidation-reduction potential (ORP) of a solution. Using optional probes with a BNC connector,
the meter can measure pH from 0 to 14 and ORP from -1999 mV to +1999 mV. The meter also
accepts an optional automatic temperature compensation (ATC) probe that configures the pH
electrode to measure solutions whose temperature is between 32 and 150oF (0 and 65oC). For
measuring the pH of solutions at temperatures between 32 and 212oF (0 and 100oC), the
temperature compensation can be set manually. pH electrodes must be calibrated for pH 4, pH 7
and pH 10 using buffer solutions.
Among the applications and environments suitable for the PHH-SD1 are water conditioning,
wastewater monitoring, beverage production, aquaculture (fish farming), aquariums, pulp and
paper processing, electroplating, and photography.
The PHH-SD1 has the performance and features needed to satisfy the most demanding aspects of
the above applications. A front-panel pushbutton enables rapid switching between the two
measurement modes. Measurement accuracies are ± (0.02 pH units + 2 digits) for pH readings
and ± (0.5% of the reading + 2 digits) for ORP readings.
Because it is microprocessor-based, the PHH-SD1 can make full use of the portability, reliability
and large storage capacities that SD memory cards offer. 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 PHH-SD1 has a backlit 2-1/2 inch diagonal display and is powered by six AA Alkaline
batteries or an optional 9-VDC AC adapter.
KEY FEATURES
•
•
•
•
•
•
•
•
•
•
•
Measures pH and ORP using optional electrodes
Measured parameter can be changed by pressing front-panel button
Optional ATC temperature probe automatically calibrates pH electrode to pH 4, pH and
pH 10
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
1
OPERATING INSTRUCTIONS
What’s in the case
The PHH-SD1 comes fully assembled with a 2 GB SD memory card and this user’s manual.
Optional accessories available from OMEGA include pH electrodes, a probe that enables
automatic temperature compensation (ATC) of pH electrodes, an ORP electrode, pH 4 and pH 7
buffer solutions, 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 PHH-SD1. Familiarize yourself with the positions and functions of these controls, indicators
and connectors before moving on to the setup procedure.
1. The PHH-SD1’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 Socket for ATC temperature probe
1-14 Socket for pH electrode
1-15 Socket for 9VDC AC adapter
1-16 Reset button
1-17 RS232 output jack
1-18 SD card socket
2
Setup
1. Choose the power source. Before using the PHH-SD1, be sure it is powered by fresh
batteries or an optional 9VDC AC adapter plugged into the bottom jack on its right side
(callout 1-15).
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
PHH-SD1 (callout 1-18). 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 PHH-SD1, press the POWER button and hold it until the instrument
responds with a long beep.)
When the meter powers on, a series of transient startup screens will briefly appear. Once the
display has stabilized, perform the following eight setup steps in the order presented.
3. Format the SD card. 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.
(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 ▼ 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 button. “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.
4. Set the date and time. Once the SD card has been formatted (or not), the meter will
automatically move to the next step in the startup sequence: setting the current date and
time. When the word “dAtE” appears 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
3
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.
5. Set the datalogging sampling time. Once the date and time have been set and stored, the
display will show a value below 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.
6. 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 PHH-SD1 after a period of inactivity of ten minutes.
7. 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.
8. 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.
9. Select the temperature unit. Once the format of decimal point divisions has been set
and stored, the lower portion of the display will show the term “t-CF”. Press either the ▼
or ▲ button to change the letter displayed at the right of the display to “C” (for Celsius
units) or “F” (for Fahrenheit units), as desired. Then press the REC/ENTER button to
store the selection.
10. Set the compensation temperature for pH electrode measurements when operating
without an ATC temperature probe. The default value is 77oF (25oC). The value is
adjustable between 32 and 212 oF (0 and 100 oC).
Once the display temperature unit has been set and stored, the lower portion of the display
will show the term “t-SEt”. Press either the ▼ or ▲ button until the value above “t-SEt”
matches the desired compensation temperature, in oC or oF. Press the REC/ENTER button to
store the setting.
The display will then either return to the first of the eight 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.
4
Calibrating the pH electrode
The optional pH electrode you are using must be calibrated before making pH measurements
with it for the first time. The electrode also should be calibrated whenever you wish to maximize
the accuracy of measurements. Calibration is necessary because not every pH electrode is an
“ideal” electrode that generates 0 mV at pH 7 and 177.4 mV at pH 4.
1. To calibrate the pH electrode, perform the following procedure while referring to
Figure 2.
2. Calibrating a pH electrode using the buffer solution
2-1 Electrode plug
2-2 Electrode handle
2-3 Electrode head
2-4 pH buffer solution
1. Insert the plug of the pH electrode into the BNC socket at the top of the meter (callout
1-14 of Fig. 1).
2. Power on the meter by pressing the POWER button.
3. Using the procedure detailed earlier, manually adjust the compensation temperature
so it matches the temperature of the buffer solution. Alternatively, use an ATC
temperature probe to make the adjustment automatically.
4. Holding it by its handle, immerse the pH electrode in the bottle of buffer solution. (If
you are using the ATC temperature probe, immerse its head in the bottle as well.)
5. Gently shake the electrode (and the probe, if used). The display will show the pH value.
6. Use two fingers to press the REC/ENTER and HOLD/ESC buttons at the same time.
When this screen
appears, release the buttons.
5
7. Press the ▼ or ▲ button until this screen
REC/ENTER button to calibrate the electrode for pH 7.
8. Press the ▼ or ▲ button again until this screen
REC/ENTER button to calibrate the electrode for pH 4.
appears. Press the
appears. Press the
9. Press the ▼ or ▲ button again until this screen
appears. Press the
REC/ENTER button to calibrate the electrode for pH 10.
10. The pH electrode has now been calibrated once. To maximize measurement accuracy,
General recommends rinsing the head of the electrode (and the head of the ATC
temperature probe, if used) in distilled water and then repeating the above steps at least
twice more.
11. To recalibrate the electrode in the future, you must clear the existing settings. To do
so, press the ▼ or ▲ button until this screen
appears. Then press the
REC/ENTER button to clear the saved settings before repeating the steps above to
calibrate the electrode for pH 7, pH 4 and pH 10.
Normal operation
The PHH-SD1 can measure either the pH or the oxidation-reduction potential (ORP) of a
solution.
1. To select the type of measurement, press the ▼ button (which has the word “Function”
stenciled above it) until the display shows either the term “pH” or “mV” (the unit of ORP
measurements).
Following are the default states for the PHH-SD1:
• pH measurement
• Temperature unit of oC
• Manual temperature compensation
• Auto power off
• Sampling time of 2 seconds
To change any of these parameters, use the specific procedure for it detailed in the Setup section.
2. To measure the pH of a solution, press the ▼ button until the display shows the term
“pH”. Make sure the pH electrode is seated firmly in the BNC socket (callout 1-14 of Fig.
1) on the top of the meter. If the ATC temperature probe is being used, make sure it is
seated firmly in its socket (callout 1-13 of Fig. 1) on the top of the meter as well. If the
ATC probe is not being used, perform the last step of procedure to manually match the
compensation temperature to the temperature of the solution being tested.
6
Holding the pH electrode by its handle, immerse it in the solution under test. (If you are
using the ATC temperature probe, immerse its head in the solution as well.) Gently shake the
electrode (and probe, if used) to help any air bubbles escape and to ensure an accurate
reading.
The display will simultaneously show the solution’s pH in the center and either the manually
selected compensation temperature or the actual temperature of the solution (as measured by
the ATC probe) below it. By default, the temperature reading will be in oC, unless oF has
been selected.
3. To measure the ORP of a solution, press the ▼ button until the display shows the term
“mV”. Plug an optional ORP electrode with a BNC connector into the same socket on the
top of the meter (callout 1-14 of Fig. 1) that accepts the plug of a pH electrode.
Holding the ORP electrode by its handle, immerse it in the solution under test. Gently shake
the head of the electrode to help any air bubbles escape and to ensure an accurate reading.
The display will show the ORP of the solution, in mV.
Whenever the PHH-SD1 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
4. To hold a measured value of pH or ORP, 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.
5. 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.
6. 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.
Automatic vs. manual datalogging
The PHH-SD1 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 5 of the setup procedure.
7. To start automatic datalogging, press the REC/ENTER button once. The top line of the
display will show the term “REC”. Pressing the LOGGER SET button at this point will
7
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.
8. 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.
9. 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.
10. To log data manually, set the sampling time to zero using Step 5 of the setup procedure.
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 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.
11. 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.
12. 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 meter 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 file extension .xls, they open in
Microsoft’s Excel application. Figures 3, 4 and 5 show three kinds of Excel presentations: a dataonly screen, a graphics-only screen, and a mixed data/graphics screen.
8
3. Typical Excel data-only screen
4. Typical Excel graphics-only screen
5. Typical Excel mixed data/graphics screen
9
SPECIFICATIONS
Embedded microcontroller
Display type
Display size
Parameters measured
Measurement range
Custom one-chip LSI device
Liquid-crystal with green backlight
2.05 x 1.5 inches (52 x 38 mm)
pH, ORP
0 to 14 for pH; -1999 mV
to +1999 mV for ORP
± (0.02 pH units + 2 digits) for pH;
± (0.5% of reading + 2 digits) for ORP
0.01 unit for pH; 1 mV for ORP
Automatic between 32 and 150oF (0 and 65oC)
when using optional ATC temperature probe;
manually settable between 32 and 212oF
(0 and 100oC) without ATC probe
Maximum, minimum
Settable between 1 second and 8 hours,
59 minutes, 59 seconds (in automatic
datalogging mode)
1 GB to 16 GB
Date, time, auto power off, beep sound,
sampling time, decimal
point or comma decimal
division, temperature unit, compensation
temperature
32 to 122oF (0 to 50oC)
0 to 85%
Six Alkaline AA batteries or optional
9-VDC AC adapter
14 mADC (normal operation, with backlight
off and SD card not saving data); 37 mADC
with backlight on and card saving data; 49
mADC with backlight on and card saving data
6.97 x 2.68 x 1.77 inches (177 x 68 x 45 mm)
1.08 lb (489 g)
Measurement accuracy
Measurement resolution
Temperature compensation
Storable/recallable readings
Datalogging sampling time
SD card capacity
Settable parameters
Operating temperature
Operating relative humidity
Power supply
Power consumption
Dimensions
Weight
MAINTENANCE & TROUBLESHOOTING TIPS
Keep the pH and ORP electrodes and ATC temperature probe clean and protected from the
elements when not in use. When the pH electrode is not being used, General recommends
keeping its head inserted in the bottle of pH buffer solution.
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 the meter for an extended period of time.
Do not drop or disassemble the meter or immerse it in water.
10
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of 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 limited to mishandling, improper 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 manufactured 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.
RETURN REQUESTS/INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN 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 NON-WARRANTY REPAIRS, consult
FOR WARRANTY RETURNS, please have the
OMEGA for current repair charges. Have
following information available BEFORE contacting
the following information available BEFORE
OMEGA:
contacting OMEGA:
1. Purchase Order number under which the product
1. Purchase Order number to cover the COST
was PURCHASED,
of the repair,
2. Model and serial number of the product under
2. Model and serial number of the product, and
warranty, and
3. Repair instructions and/or specific problems
3. Repair instructions and/or specific problems
relative to the product.
relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our
customers the latest in technology and engineering.
OMEGA is a trademark of OMEGA ENGINEERING, INC.
© Copyright 2018 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.
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M4987/0918
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