OMEGA CDH-SD11 Conductivity, TDS, and Salinity Meter with Real Time SD Card Data Logger User Guide

User’s Guide
CDH-SD11

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Conductivity, TDS, and salinity Meter with Real-time SD Data longer
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The Servicing North America:

The U.S.A. Headquarters:
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.

FEATURES

1. Professional look design accurate portable meters with large LCD display, with BNC connector.
2. All electrodes with BNC connectors are compatible to any other electrodes.
3. Hold function, low battery icon indicator, automatic power off in 15 minutes and may be disabled.
4. Built-in different temperature compensation selectable: Thermistor 30K, 10K ohm.
5. RFS (Recover to Factory Setting) function is included.
6. Conductivity calibration points: 1413uS. A calibration solution is included.
7. Conductivity electrode may convert to EC, TDS, and Salinity concentration, Adjustable conductivity to TDS conversion factor from 0.4 to 1.0. Three in one conductivity electrode (Cond/EC. TDS. Salinity) measurement.
8. Conductivity cell constant (K) selectable: 1.0, (Standard) 10 (Optional) (Selectable and adjustable).
9. SD card capacity: 1GB to 8GB.
10. Tripod receptacle mountable design for long-time monitoring purposes.
11. All sensors are well-calibrated before shipment.
12. The warranty period of the meter is two years. The electrode is one year.

SUPPLIED

• Meter
• Electrode x 1pc (Cond./EC/TDS/Salt)
• Battery-AAA x 3 pcs
• 1413uS buffer solution (Cond. K=1) x1 or 12.88mS buffer solution (Cond. K=10)
• 9V adaptor (optional)
• Black carrying case
• Operation manual
• 8G SD card

ADDITIONAL PURCHASE

• CDE-11G K=1 electrode replacement (Graphite type)
• CDE-11P K=10 option (Platinum type)

SPECIFICATION

secs, 30 secs, 60 secs, 120 secs, 300secs, 600 secs, 900 secs, 1800 secs, 1Hr
Manual| Press the ADJ button once will save data one time. Set the sampling time to 0 seconds.
Memory Card|  SD memory card 8G
Data Hold|  Freeze the display reading.
Meter dimension|  175mm x 58mm x 32mm (With BNC connector)
Power supply| AAA batteries x 3 pcs / 9V AC/DC adaptor (optional)
Temperature|  0-90 C
Temp. accuracy| ±0.5 C
 Conductivity
Measurement range| 30 uS/cm-20 ms/cm (K=1) Supplied
 500 uS/cm -199 mS/cm (K=10) Option
Accuracy|
(±1% of full scale + 1 digit)| ±199.71 (K=1)
±1985.01 (K=10)
---|---
Cond Calibration| 1 point 1413 uS calibration (K=1)
1 point 12.8 mS calibration (K=10)
Resolution| 0-1999 uS/cm (1)
Dimension| 12x120mm
Electrode body| ABS
Sensor type| Graphite plate
TDS (Total Dissolved Solids)
Measurement range| 0 to 19.99 ppm | 0 to 199.9 ppm | 0 to 1999 ppm
0 to 19.99 ppt | 0 to 199.9 ppt
Accuracy| ±1% of full scale + 1 digit
Resolution| 0.01 ppm, 0.1 ppm, 1 ppm ; 0.01 ppt, 0.1 ppt
SALT
Measurement range| 0-42.0 ppt (Seawater)
Accuracy| ±1% of full scale + 1 digit
Resolution| 0.1 ppt
ATC Temperature sensor Probe port| 3.5 mm diameter phone jack
Cable length| 1 M

KEYPAD (CONTROLS)

PWR: Power on (Press in one second) or power off (Press more than 2 seconds when operating).
SET: Move to left digit. Short press to toggle COND EC TDS Salt. Long pressing to save the setting.
CAL: Move to right digit. To clear SD manual record data.
MODE: Select sample rate of SD card. Toggle Condt1Ftds (under K value adjustment mode).
Toggle 1413 uS calibration mode to 12.8 mS calibration mode (under Conductivity calibration mode).
UNIT: Short pressing to change temperature unit /. Long pressing to select temperature probe type.
Short pressing to select NTC: Negative Temperature Coefficient)/ NOT: no remote temperature probe.
HOLD: Freeze current readings (Hold shows at top of LCD). Increase value.
ADJ: Long press to start SD recording (SD card is inserted to the meter). Decrease value.
SET+UNIT: Enter cond. cell constant K value / Temp. coefficient compensation/tds K factor value mode.
Long press again to escape the K value setting. Recovery to factory setting (under calibration mode).
SET+CAL: Conductivity Calibration.
HOLD+PWR: Disable Auto Power Off.

OPERATION

COND/EC/TDS/SALT PROBE INSTALLATION (BNC connector):
a) Insert the COND electrode into the top of left hole. And insert the 3.5mm Ø diameter phone jack ATC censoring parts into the middle of the hole.
b) Hold the BNC connector in one hand; with the other, insert the braid into the center of the connector.
Continuing pushing the braid into the connector until it will not go in any farther. Do this gently and slowly; do not bend the braid.
c) Turn the BNC connector in a clockwise direction, until you cannot turn it anymore.
NOTE: Remove batteries when not use!

Power-off switch: When the meter is turned off, the internal CPU does not shut down completely, it will keep detecting the buttons per millisecond. Let the meter know if the user wants to activate the meter or not. It will consume the power by each detecting, in order to save the power, you may pull down the switch.

NOTE: For each operation, make sure you are using fresh batteries, same brand, same power of batteries is required. and otherwise, the meter shows erratic readings or leakage. Warranty is void if not follow the notices. (Note : remove batteries when not used!

1. There are two ways to provide power:
   (a) AAA batteries x 3pcs
   (b) 9V AC/DC adaptor (optional). The battery icon indicates when power is weak, replace with new batteries immediately as the readings now on LCD are incorrect due to weak power. Battery life: Approx. 50 hours for continuous use. Approx. 11.5 hours for activating SD function (w/ sample rate: 2 seconds). Approx. 13 hours for activating SD function (w/ sample rate: 1 hrs). For short time measurement, you may power on by batteries. For long time use, you have to connect with an AC/DC adaptor.

2. Make sure the sensor probe and meter are well connected. Don’t attempt to detach sensor probe from meter while in operation.

3. When the Meter shows erratic readings, it must be sensor failed or power is weak.

4. Only select one of the two electrodes while measuring the same water zone, otherwise, the meter appears erratic readings.

Read two parameters at the same time are only available for measuring two different water sources.

1. POWER NOTE:
   Make sure you have connected the electrode to the meter before power on.
   Momentarily pressing the PWR button to turn on the meter, press and hold PWR buttons to turn off the meter.

2. COND/EC/TDS/Salt MODE
   Short pressing SET button to toggle COND – EC-• TDS Salt

3. CHANGE THE TEMP. UNIT TO °C/°F
   Short pressing UNIT button to toggle C or F.

4. HOLD
   Freeze the current readings of Cond./EC/TDS/Salt, then the icon “Hold” will appear on the top left of the screen.

5. AUTO POWER OFF
   Meter will turn off automatically in 15 minutes when no use, to disable auto power-off function by pressing HOLD and PWR buttons, “n” momentarily shows on the screen, now the meter is at non-sleep mode, then turns to normal measurement, Meter default auto power off.

6. FACTORY RESET
   a) Cond. electrode
   Whenever replacing a new cond. electrode. Long pressing SET+CAL buttons to enter Cond. calibration mode then strongly recommends doing factory reset by pressing SET+UNIT under 1413 uS calibration mode, the screen will show “rFS” momentarily.

7. TEMPERATURE PROBE-TYPE SELECTION
   NOTE: If using NTC 10K probe but select 30K type. The temperature value will not be accurate. The default setting is NTC 10K. Users can change it depending on the electrode type to get the correct value.

temperature degree by their own temperature instrument, default: 25°C Adjustable range: 0.0°C~90.0°C

Step 1: Must select the correct probe type before measurement, otherwise the value would be incorrect.
Step 2: Long pressing UNIT button, the meter default is “ntc 10k”, short pressing UNIT button to toggle ntc 30k not.
Step 3: Long pressing the UNIT button again to save the setting, the meter shows “SA” at the bottom of LCD and then returns to normal measurement mode.

CONDUCTIVITY/EC/TDS/SALT CALIBRATION PROCEDURE and MEASURING
NOTE: Calibration is necessary before the operation, the calibration procedures refer to as below “ a) to b)”:

2-1 Conductivity
a) Required Equipment for calibration:

1. Cond./EC/TDS/SALT ELECTRODE

2. Prepare the standard 1413 uS conductivity solution.

3. Toggle 1413 uS calibration mode to 12.8 mS calibration mode (under Conductivity calibration mode).
   NOTE: Make sure to use a fresh solution each time due to the contaminants in the solution will affect the calibration and accuracy.
   b) Calibration Procedure:

4. Prepare the Conductivity electrode, install the “electrode plug” into the left “BNC port” of the meter.

5. Power on the meter by pressing the PWR button.

6. First, to enter the cell constant (K) value of the Cond. the electrode is required (e.g. Refer to the label on the top handle of the probe.)
   Long pressing SET+UNIT buttons to enter the cell constant value. Units digit will flash.
   HOLD: ↑to increase ADJ: ↓to decrease SET: ←to left digit CAL: →to right digit
   And long-pressing SET to save the setting, a screen will show “SA”.
   To escape calibration mode without saving setting, long-pressing SET+UNIT buttons, the bottom of the screen will show “ESC” few seconds and return to normal measurement mode.

7. Conductivity electrode (K = 1):

Long pressing SET + CAL buttons to enter Cond. calibration mode. Immerse the cond. probe to standard 1413 uS buffer solution. The display will show the standard conductivity 1413 uS values. Long pressing the SET button to finish calibration, the screen will show “SA”. To escape calibration mode without saving setting, long-pressing SET+CAL buttons, the bottom of the screen will show “ESC” few seconds and return to normal measurement mode.
Conductivity electrode (K=10):
Long pressing SET + CAL buttons to enter Cond. calibration mode. Short pressing MODE button to enter 12.8 mS calibration mode. Immerse the cond. probe (K=10) to standard 12880 us/cm buffer solution. The display will show the standard conductivity 12.8 mS value in the first layer. Long pressing SET button to finish calibration, the screen will show “SA”.
To escape calibration mode without saving setting, long-pressing SET+CAL buttons, the bottom of the screen will show “ESC” few seconds and return to normal measurement mode.
NOTE: The display shows 12.88 means 12.88 mS (12880 uS/cm).

8. Change the temp. the coefficient is necessary. The default setting is 2.01% per.
   Using a suitable temp. coefficient of the solution will provide good results.
   The temp. coefficients of the following electrolytes generally fall into the ranges shown below:
   To enter the temperature coefficients by long-pressing SET+UNIT buttons, then short pressing MODE to toggle Cont I FtdS. And go to select “t I F” and set the value.
   HOLD:↑ to increase ADJ: ↓to decrease SET:← to left digit CAL:→ to right digit
   Long pressing the SET button to finish calibration, the screen will show “SA”.The adjustable range is 1% to 7.4%.
   Or to escape setting by long pressing SET+UNIT buttons, the bottom of the screen will show “ESC” in a few seconds and return to normal measurement mode.

c) Conductivity measurement:
NOTE: For measuring high conductivity reading such as seawater, ensure to purchase cond. electrode (K=10).

1. Prepare the Conductivity electrode, install the “electrode plug” into the left “BNC port” of the meter.
2. Power on the meter by short pressing the PWR button.
3. Hold the electrode handle by hand and let the sensing head be immersed wholly into the measured solution.

Shake the probe to let the probe’s internal air bubble drift out from the sensing head.
The display will show the conductivity mS (uS) values.

2-2 TDS
a) Calibration by using Conversion Factors
TDS values are related to conductivity. To calibrate the meter by using conductivity standards as described in 2-1-b (Page 6) and select the correct TDS conversion factor. You can refer to the below table or calculate the TDS conversion factor for other solutions by using the formula. Meter default is 0.66.
Factor= Actual TDS ÷ Actual Conductivity @ 25°C

To enter the factor by long-pressing SET+UNIT buttons, then short pressing MODE to toggle Cont I FtdS. And go to select “TDS” and set the value.
HOLD:↑ to increase ADJ: ↓to decrease SET: ←to left digit CAL:→ to right digit
Long pressing the SET button to finish calibration, the screen will show “SA”. The adjustable range is 0.05 to 1.00.
Or to escape setting by long pressing SET+UNIT buttons, the bottom of the screen will show “ESC” for a few seconds and return to normal measurement mode.
b) TDS measurement:

1. Under normal measurement mode, short pressing SET button to toggle Cond. measurement to TDS measurement.
2. The measuring procedures are the same as above 2-1-c (page 7) conductivity measurement, except to change the display unit from uS, mS to PPM, PPT.

The display will show TDS values at the same time the left bottom display will show the temp. value of the measured solution.
NOTE: If the TDS value is ppm, the conductivity value must be in uS; if the TDS value is in ppt, the conductivity value must be in mS.
2-3 Salt
a) Calibration
If the conductivity range already makes the calibration completely (refer to 2-1-b at page 6 ) then the salt measurement is not necessary to make the calibration again.
b) Salt measurement

1. Under normal measurement mode, short pressing SET button to toggle Cond. measurement to “salt” measurement mode.
2. Hold the Cond. electrode handle by hand and let the sensing head Immersed wholly into the measured solution. Shake the probe to let the electrode’s internal air bubble drift out from the sensing head. The display will show salt values (ppt) at the same time the left bottom display will show the temp. value of the measured solution.

CONDUCTIVITY STANDARD SOLUTION (K=1) (1413 μS/cm at 25°C)
Conductivity reading will be affected by the temperature.

CONDUCTIVITY STANDARD SOLUTION (K=10) (12880 μS/cm at 25°C)
Conductivity reading will be affected by the temperature.

ELECTRODE MAINTENANCE

Proper maintenance will ensure faster measurements, improve accuracy and extend the lifetime of the electrode.
Cond./EC/ TDS /Salt electrode
Conductivity meters and cells should be calibrated to a standard conductivity solution. Selecting standards is very important, you should always choose one that has the approximate conductivity of the solution to be measured.
A polarized or fouled electrode must be cleaned to renew the active surface of the cell.
In most situations, hot water with a mild liquid detergent is an effective cleanser.
Acetone easily cleans most organic matter, and hypochlorous solutions will remove algae, bacteria, or molds prevent cell damage, abrasives or sharp objects should not be used to clean an electrode.
A cotton swab also works well for cleaning.

SD CARD DATA LOGGING

After inserting the SD card, the “SD” icon will appear on the bottom of the display. When the meter is supplied by batteries, once the icon becomes with SD icon disappeared, it indicates the power is not enough to activate the SD function but other functions are still working, now we suggest the user use an adaptor to power the meter. Once the battery icon becomes , it means the power is very weak and should be replaced with the new batteries for operating the meters.

SD Card Information
a) Power the meter with AAA batteries or 9V AC/DC adaptor (optional).
b) Insert an SD card (8G supplied) into the SD card slot at the right side of the meter. The card must be inserted with the front of the card (label side) facing toward the front of the meter.
After inserting the SD card, icon “SD” will appear on the bottom of the screen.
c) If the SD card is being used for the first time it is recommended that the card be formatted.

SD Card Formatting
NOTE: Always confirm that the device is compatible with the SD, SDHC or SDXC memory card before formatting.
WARNING: Back up all your data before formatting. Formatting will erase all data on the memory device.
a) Open the Computer window.
Click the Start or Windows menu and select Computer (Windows Vista/7) or My Computer (Windows XP). For Windows 8 users, type “computer” and click the Computer icon in the Apps search results. For Windows 10, open File Explorer. Then find “This PC”.
b) Find your SD card.
The removable drive that appears last in the “Devices with Removable Storage” list should be the SD card that you just connected to your computer. Right- click on your SD card to bring up the right-click menu options. Select Format. This will take you to the Format window. Keep “Capacity” and “Allocation unit size” set to default.
c) Select the file system.
This is the way files are stored on the card. Different systems use different file structures. In order for the SD card to be read by any device, select FAT32 as the file system. This will enable it to be read by cameras, phones, printers, Windows, Mac, and Linux computers, and more.

1. Select Quick Format.
2. Click “Start”.
3. Once the formatting is complete, you can close the window.

Automatic Data logging
The meter stores a reading at a user-selected sampling rate onto an SD memory card. The meter defaults to a sampling rate of 2 seconds.
NOTE: The sampling rate cannot be “0” for automatic data logging.
NOTE: Plugin the adaptor for SD data logging.
Setting the data logger clock time
NOTE: Make sure the clock of the meter is set up correctly in order to get an accurate date/time during data logging sessions.

1. Power of the meter, pressing MODE+POWER buttons to enter the setting. YEAR digit “18” will flash.
2. Short pressing CAL go to MonthDay Hour Minute sets.
3. Press and hold SET button to save the setting and the screen will show “SA” then “End4. Re-power ON the meter to back to normal measurement mode.

NOTE: To escape setting by turning OFF the meter without any change.
a) Setting the data logger sampling rate

1. While the meter is powered ON, press and hold the MODE button to enter the setting.
2. Pressing the HOLD button to increase the value; pressing ADJ to decrease the value.
3. Long pressing MODE button to save the setting.
4. The available settings are: 0, 2 sec, 5 sec, 10 sec, 15 sec, 30 sec, 60 sec, 120 sec, 300 sec, 600 sec, 900 sec, 1800 sec, and 1hr.

b) Start data logging
Warning: SD recording the selected temperature unit (or). If changing the temperature unit during the data logging sessions, the recorded data will be switched into the selected temperature unit.

1. Power on the meter by AAA batteries or 9V AC/DC adaptor (optional).

2. After inserting the SD card, the display will show the icon “SD” on the bottom of the screen.

3. Long pressing ADJ button to start recording until icon “SD” flashing on the bottom of the screen.

4. When “SD” disappears, SD stop recording data or the SD card is not being inserted.

5. When an SD card is used for the first time a folder is created on the card and named the model number.
   Under the MODEL number folder, the MODEL number and AUTO+YEAR folder will be automatically created. e.g.: /CDH-SD11/AUTO2017/…..

6. When data logging begins, a new folder named M(month)/D(date)/H(hour)/M(minute) is created on the SD card in the AUTO+YEAR folder. At the same time, a new spreadsheet document (CSV.) named M/D/H/M is also created under its folder. e.g.: /CDH-SD11/AUTO2017/04051858/04051858.csv

7.  Each CSV. file can be stored up to 30,000 points.
   After reaching 30,000 points, a new file name will be auto-created as M/D/H/M right after the last recording time. Unless you interrupt the recording, this process continues in the initial created M/D/H/M folder.
   e.g.: /CDH-SD11/AUTO2017/12261858/12262005.csv

NOTE1: Data logging stopped when replacing the probe, removing the SD card, removing batteries, adaptor or resetting the sampling rate.
NOTE2: When the recording is been stopped, a new folder will be created as M/D/H/M from the next data logging.
NOTE3: When the recording year and model number is changed, the new folder will be also created accordingly.
NOTE4: When SD card records 1 point, the “SD” icon will flash one time, once the “SD” icon flashes three times, it means the meter is under low battery, the recording will be failed if the battery is low.

Manual data logging (MAX 199 points)

1. Set the sampling rate to “0” seconds (Refer to “Setting the data logger sampling rate”).

2. In the manual mode, data is logged when pressing and holding the ADJ button and the screen shows recorded points “00X” in the temp. block with icon “MEM” flash in few seconds.
   e.g. Recorded 1 point, then the bottom screen shows “001”.

3. Long pressing the CAL button to clear data (removed MANUAL.csv), the screen shows “CLR”.
   NOTE: While the screen shows “Err” by long pressing CAL, it stands for no data can be cleared or SD card isn’t being inserted.
   NOTE: Once clear the data by long-press CAL, there is no way to recover the data. If you want to keep the previous data, renaming the file “MANUAL.csv” in /CDH-SD11/ MANUAL.csv is required.

4. Data directory in SD card : /98717AT/ MANUAL.csv
   NOTE: When manual data records are full (199 points), logging will continue, but with new data overwriting old. If you want to keep the previous data, renaming the file “MANUAL.csv” in /CDH-SD11/ MANUAL.csv is required.

SD Data Transfer to PC

a) Remove the SD card from the meter.
b) Insert SD card directly into a PC SD card slot or use an SD card reader.
c) Open the saved documents (CSV.) in the folder from the PC to get the data.
d) File name /Product number/ Sample rate/ Recording point/ Start recording time/ End recording time/ Recording date/time /Recording parameters will be shown in the CSV. file.
e) Data show “0” stands for no measured value during the recording period.

BURN OUT NOTIFICATION

If the sensor is not connected or over measurement range, the —will be displayed on LCD and the data in the SD card is “0”.

TROUBLESHOOTING

Q1: Wrong temperature??
A1: Refer to page 4 (TEMPERATURE PROBE TYPE), you must select the correct temperature sensor type or adjust the temperature manually (Long press UNIT button then press UNIT to select “not”).
Q2: Appear “Error codes”??
A2: Make sure if Hold appears on LCD.

ERROR CODES

that probe without ATC or manual temp. setting. The electrode of cond. measured in pure water or ultrapure water. Select the wrong temp. probe type (refer to page 4).
OL2| Measurement is out of range of the display.

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 25 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal two (2) 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 the information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS 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, the 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, THE 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 WARRANTY RETURNS, please have 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.

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 the product, and
3. Repair instructions and/or specific problems 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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