Omega Products PHE-910 Installation Manual

PHE-910

pH/ATC Ag/AgCI Combination Electrode

INSTRUCTION

SHEET

M2892/1208

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Specifications

Range 0 - 14 pH
Isopotential Point 0 ± 30 mV
Temperature Range 0 to 100°C
Reference Element Ag/AgCl Sealed cartridge
Junction Free-Flow Platinum
Filling Solution 3M KCI saturated with AgCl
Storage Solution 3M KCl
Electrode Diameter 12mm
Body Length 120mm
Cable Length 1 meter
Connector Type BNC and 2.5mm phone plug
Response Time 95% in 15 seconds
Sodium Error <0.2 pH at pH 14 with 1M sodium

Electrode Preparation

1. Remove the wetting cap from the electrode.

2. Clean any salt deposits from the electrode body by
rinsing with deionized (DI) or distilled water.

3. Verify that the Electrode Filling Solution is at least 1"
(25mm) high. If not, slide the electrode Fill Gate up to
uncover the Fill Hole. Insert the plastic nozzle of the fill
solution bottle firmly into the fill hole and squeeze to fill
the electrode.

4. Connect the electrode to the meter as described in the
meter’s manual.

5. During use leave the Fill Gate in the open position.

Measuring Techniques

• Standardize at least daily for the most accurate readings.

• Always use fresh buffers.

• Stir all buffers and samples.

• During standardization, allow time for the electrode to

stabilize before entering the buffer into the meter.

• Rinse the electrode with DI water between samples.

Storage

Place the electrode in its Storage Vial containing Electrode
Storage Solution. Electrode Fill Solution (3M KCl) can be
purchased or made. Make 3M KCl solution by dissolving

22.37 grams of potassium chloride into 100 mL of DI or
distilled water. Do NOT store the electrode in deionized
water.

Troubleshooting

1. Connect the pH electrode to the BNC connector.

2. Place the meter into absolute (

3. Rinse and place the clean electrode into a pH 7 buffer:
The mV reading should be 0 ± 15 mV.
Outside of this range indicates a problem.
See below for solutions.*

4. Rinse and place the clean electrode into a pH 4 buf
The mV reading should be 159 to 186 mV more than
value in pH 7.

Example:

read 169 to 196 mV.
Outside of this range indicates a problem.
See below for solutions.*

Optionally, rinse and place the clean electrode into a pH

5.

10 buffer:

The mV reading should be -159 to -186 mV less than
value in pH 7.

Example:

read -149 to -176 mV.
Outside of this range indicates a problem.
See below for solutions.*

*

Ensure that buffers are fresh and not contaminated. If
readings are still outside of this range, clean the electrode
and repeat test.

pH 7 buffer is 10 mV; pH 4 buffer should

pH 7 buffer is 10 mV; pH 10 buffer should

relative) mV mode.

not

fer:

Cleaning Procedures

If the electrode becomes sluggish, or has been determined
to be bad, clean the electrode by following the directions
below.

General

Soak in 0.1M HCl or 0.1M HNO3for half an hour.
Drain and refill the Electrode Filling Solution.
Soak the electrode in Filling or Storage Solution for 1

Inorganic

Soak in 0.1M tetrasodium EDTA solution 15 minutes.
Drain and refill the Electrode Filling Solution.
Soak the electrode in Filling or Storage Solution for 1

Protein

Soak in 1% pepsin in 0.1M HCl for 15 minutes.
Drain and refill the Electrode Filling Solution.
Soak the electrode in Filling or Storage Solution for 1

Grease and Oil

Rinse with mild detergent or methanol solution.
Drain and refill the Electrode Filling Solution.
Soak the electrode in Filling or Storage Solution for 1

hour.

hour.

hour.

hour.

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

Servicing North America:

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ISO 9001 Certified Stamford, CT 06907-0047

Canada:

Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

Toll-Free: 1-800-826-6342 Tel: [phone]
FAX: [phone] e-mail: [e-mail]

976 Bergar
Laval (Quebec), Canada H7L 5A
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: info@omega.c

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Benelux:

Czech Republic:

France:

For immediate technical or application assistance:

U.S.A. and Canada:

Mexico:

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.

Sales Service: 1-800-826-6342/1-800-TC-OMEGA
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United Kingdom:

ISO 9001 Certified One Omega Drive, River Bend Technology Centre, Northbank

Servicing Europe:

Managed by the United Kingdom Office
Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: sales@omega.n

Frystatska 184
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FAX: [phone] e-mail: [e-mail]

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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
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.

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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
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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.

Service Department will issue an Authorized Return (AR)

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO

RETURN REQUESTS / INQUIRIES

OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER
TO AVOID PROCESSING DELAYS). The a ssigned AR number should then be ma rked 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 WARRANT
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.

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 registered trademark of OMEGA ENGINEERING, INC

© Copyright 2008 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

Y RETURNS, please have the following information

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, an

d

3. Repair instructions and/or specific problems relative to the product.

.

.