Omega Products ORE-600 Installation Manual

User’s Guide

Shop online at

omega.com

e-mail: [e-mail]

For latest product manuals:

omegamanual.info

PHE-600/610 ORE-600/610

Differential pH & ORP Probes

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

Servicing North America:

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

ISO 9001 Certified Stamford, CT 06907-0047

TEL: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1, Canada
TEL: [phone] FAX: [phone]
e-mail: [e-mail]

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
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: En Espan˜ ol: [phone]-7803 e-mail: [e-mail]

FAX: [phone] [e-mail]

®

®

®

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

TEL: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

TEL: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

TEL: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

TEL: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
TEL: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

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

1.0 SPECIFICATIONS 2

2.0 INSTALLATION 3

2.1 General Instructions 3

2.2 Submersion Mounting PHE-600/ORE-600 Differential Probes 3

2.3 Submersion Mounting PHE-610/ORE-610 Differential Probes 4

2.4 Flow-through tee mounting PHE-600/ORE-600 Differential Probes 4

2.5 Flow-through tee mounting PHE-610/ORE-610 Differential Probes 4

3.0 SERVICE AND MAINTENANCE 5

3.1 Probe Cleaning 5

3.2 Replacement of Salt Bridge for PHE-600/ORE-600 Differential Probes 5

3.3 Replacement of Salt Bridge for PHE-610/ORE-610 Differential Probes 6

4.0 TROUBLESHOOTING AND SERVICE 7

4.1 Checking 5-wire Differential Probes PHE-600/610 and ORE-600/610 7

5.0 DRAWINGS 8

5.1 N106-154 PHE-600/ORE-600 DIFFERENTIAL PROBES 8

5.2 N106-155 PHE-610/ORE-610 DIFFERENTIAL PROBES 9

5.3 N105-122 INSTALLATION OF PHE-600/ORE-600 DIFFERENTIAL PROBE 10

5.4 N105-123 INSTALLATION OF PHE-610/ORE-610 DIFFERENTIAL PROBES 11

5.5 N106-158 INSTALLATION OF SALT BRIDGE IN A PHE-610/ORE-610 DIFFERENTIAL PROBE 12

Page 1

1.0 SPECIFICATIONS

MEASURING RANGES:

pH: 0 to 14.00 pH
ORP: +

WETTED MATERIALS:

PHE-600/610/620: CPVC, ceramic, glass,

ORE-600/610/620: CPVC, ceramic, glass,

TRANSMISSION DISTANCE:
5-wire Probes: 900 meters (3000 ft.)

SENSITIVITY: pH: Less than 0.005 pH

ORP: Less than 0.1mV

STABILITY: 0.03 pH / 2mV per day,
non-cumulative

PRESSURE LIMIT: 100 psig

TEMPERATURE LIMITS: 95°C (203°F)

PROBE CABLE: 15 ft. (4.6 m)

AUTOMATIC TEMPERATURE
COMPENSATION:

-5 to 95°C (23 to 203°F)

2000 mV

titanium palladium alloy and EPDM

titanium palladium alloy, EPDM, and
platinum

Page 2

2.0 INSTALLATION

2.1 General Instructions

2.1.1 Specific instructions for each type of probe are given in the following pages.
Common to all probes are the following instructions:

a) If the distance between the probe and the instrument is such that a direct

connection is not possible, the probe cable should be routed to a junction box
with a terminal strip (PHE-600-JB). The box should be well sealed and away
from corrosion danger. Be sure that you have sufficient slack cable to allow for
probe removal for calibration and servicing.

b) Route the interconnect cable from the junction box to the instrument, preferably

in metal conduit. Do not run the power cable or control cables in the same
conduit with the probe interconnect cable.

c) Remove the protective plastic caps from the end of the probe before placing in

service.

d) For best results probes should always be mounted vertically with electrodes

down. If this is not possible, the probe must be at least 15° above horizontal.

2.2 Submersion Mounting PHE-600/ORE-600 Differential Probes

Refer to Dwg# N105-122

2.2.1 a) Apply a thread sealant to the thread on the cable end of the probe and screw a

1-1/2” x 1” NPT reducer onto the probe. Route the sensor cable through an
appropriate length of 1” pipe and using thread sealant, screw the pipe into the
reducer. The cable end of the probe should not be exposed to the process. A
cable strain relief fitting should be used on the upper end of the pipe.

NOTE: An optional protective shroud, Part No. PHE-600-EP should be used on the

electrode end of the probe to protect the electrodes from accidental contact
with the tank bottom, sides or objects in the process.

Page 3

2.3 Submersion Mounting PHE-610/ORE-610 Differential Probes
Refer to Dwg# N105-123

2.3.1 a) Install the optional protective shroud, Part No. PHE-610-EP on the probe by
threading the probe cable through it. The shroud will contact the shoulder on
the probe.

b) Install the compression fitting components on the probe in the order shown in

the drawing below so that the pipe thread is towards the cable end of the probe.
If you are concerned that the shroud may get pushed up and expose the
electrodes you can lock it down by the positioning of the fittings.

c) Snug up the nut of the compression fitting to locate it in the desired position.

Hand tighten as much as possible, then turn 1/2 turn with a wrench.

d) Apply a thread sealant to the pipe thread portion of the compression fitting and

screw a 1-1/4” x 1” NPT reducer to it.

e) Route the sensor cable through an appropriate length of 1” pipe and using

thread sealant, screw the pipe into the reducer on the probe. The cable end of
the probe should not be exposed to the process.

2.4 Flow-through tee mounting PHE-600/ORE-600 Differential Probes

Refer to Dwg# N105-122

2.4.1 a) Apply pipe sealant to the electrode end of the probe and screw it into a
standard 1-1/2” NPT tee.

2.5 Flow-through tee mounting PHE-610/ORE-610 Differential Probes

Refer to Dwg# N105-123

2.5.1 a) Take the compression fitting apart. Apply pipe sealant to the 1-1/4” NPT thread
and screw this part into a 1-1/4” tee. A larger tee with an appropriate reducer
may be used.

b) Put the compression fitting components on the probe in the order shown in the

drawing below. They should be in such a position that the electrodes will be in
the pipe stream but not touching the opposite side of the tee.

c) Remove the protective cap from the probe and place the probe in the tee. Now

tighten the nut by hand as much as possible, then turn 1/2 turn with a wrench.

Page 4

3.0 SERVICE AND MAINTENANCE

3.1 Probe Cleaning

3.1.1 a) The probe should be kept reasonably clean to avoid measurement errors.
Frequency of cleaning can only be determined by experience. To clean
proceed as follows:

b) Rinse with clean warm water.

c) Soak the end of the probe in warm water and dish detergent for 3 or 4 minutes.

d) Brush the end of the probe, particularly the three electrodes with a soft bristle

brush such as a tooth brush. Take care not to scratch the glass electrode.

e) If the probe is still not clean, it may have to be cleaned with acid. CAUTION:

Do not acid clean probes used in processes containing cyanide solutions.
Some experimentation may be required to determine the most suitable acid for
your process. Use the most dilute acid which is effective. Normally 10 parts of
water to one part muriatic acid is sufficient. Do not use hydrofluoric acid.

f) Soak the probe for not more than 5 minutes in the chosen acid; then rinse

thoroughly with clean warm water and soak in water for 3-5 minutes.

g) Calibrate the system in accordance with the instrument instruction manual.

3.2 Replacement of Salt Bridge for PHE-600/ORE-600 Differential Probes

3.2.1 a) If the system can’t be calibrated after cleaning the probe, it may be necessary
to replace the standard cell solution and the salt bridge. A kit is available for
this purpose (PHE-600-SB). Proceed as follows:

b) Hold the probe vertically with electrodes up. Remove used salt bridge from the

probe using a 9/16”socket-wrench. Turn counter-clockwise, taking care not to
damage the glass electrode. Discard the used salt bridge.

c) Dispose of used solution inside the bridge chamber and flush with pH 7 solution

or distilled water.

d) Refill the chamber with 7pH buffer solution, up to the tip of the electrode, inside

the chamber. DO NOT OVERFILL. It is important to leave space for the salt
bridge thread and a small amount of air.

e) Insert the new salt bridge and tighten using the 9/16”socket wrench until the salt

bridge edging is flush with the probe face.

Page 5

3.3 Replacement of Salt Bridge for PHE-610/ORE-610 Differential Probes

3.3.1 a) If the system can’t be calibrated after cleaning the probe, it may be necessary
to replace the standard cell solution and the salt bridge. A kit is available for

this purpose (PHE-612-SB). Proceed as follows:

b) Hold the probe vertically electrodes up. Insert long nose pliers in the blind

holes in the salt bridge and turn counter-clockwise taking care not to damage
the glass electrode. Discard the used salt bridge.

c) Up-end the probe and pour out the contents of the standard electrode chamber.

Flush the chamber with a small amount of pH 7 buffer or clean water.

d) Refill the chamber with 7pH buffer solution, up to the tip of the electrode, inside

the chamber. DO NOT OVERFILL. It is important to leave space for the salt
bridge thread and a small amount of air.

e) Screw the new salt bridge into the cavity until finger tight. Now turn 1/4 turn

with long nose pliers. The front face of the salt bridge should be flush with the
front of the probe.

Page 6

4.0 TROUBLESHOOTING AND SERVICE

4.1 Checking 5-wire Differential Probes PHE-600/610 and ORE-600/610

The probe can be checked by a few simple measurements. Two pH buffer solutions, 7 pH

and either 4 pH or 10 pH, and a multimeter are required. For ORP probes two calibration
solutions, 200 and 600 mV, are required. Millivolt solutions may be ±20% of nominal value.
Actual value is noted on the bottle.

4.1.1 PHE-600/610 pH probes

a) Clean the probe as described in Section 4.1. If the system cannot be

calibrated, replace the salt bridge and 7pH buffer solution as described in 4.2.
If the system still can’t be calibrated check the probe as follows:

b) Disconnect red, green, yellow and black wires at the junction box. If you are not

using a junction box, disconnect at the instrument after shutting off the power.

c) Place the probe in 7 pH buffer. Allow enough time for the temperature of the

probe and buffer to stabilize at room temperature.

d) Measure the resistance between the yellow and black wires to check the

probe’s temperature compensator. The resistance should be between 250 and
350 ohms at 25°C. If the resistance is within specifications the probes
thermistor is functioning correctly.

e) Reconnect the yellow and black wires and restore power to the instrument.

f) Measure the voltage between the red and green wires. If it is not within –50 to

+50 millivolts with the probe in 7 pH buffer, the probe is defective. If the voltage
is OK proceed to the next step.

g) Rinse the probe and place it in 4 pH or 10 pH buffer. Allow it to stabilize then

check the voltage again between the red and green wires. If the voltage is
between 100 and 230 millivolts (negative in 10 pH buffer, positive in 4 pH
buffer) the probe is within specifications.

4.1.2 ORP Probes ORE-600/610

a) Rinse the probe and place it in 200 mV solution. The reading should be

between 160 and 240 mV.

b) Repeat the above in a 600 mV solution. The reading should be between 560

mV and 640 mV.

Page 7

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of
grace period to the normal
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.

13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month

one (1) year product warranty to cover handling and shipping time. This

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

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.

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 2005 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.

FOR NON-WARRANTY REPAIRS,
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.

consult OMEGA

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

TEMPERATURE

MU

Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

MU

Wire: Thermocouple, RTD & Thermistor

MU

Calibrators & Ice Point References

MU

Recorders, Controllers & Process Monitors

MU

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

MU

Transducers & Strain Gages

MU

Load Cells & Pressure Gages

MU

Displacement Transducers

MU

Instrumentation & Accessories

FLOW/LEVEL

MU

Rotameters, Gas Mass Flowmeters & Flow Computers

MU

Air Velocity Indicators

MU

Turbine/Paddlewheel Systems

MU

Totalizers & Batch Controllers

pH/CONDUCTIVITY

MU

pH Electrodes, Testers & Accessories

MU

Benchtop/Laboratory Meters

MU

Controllers, Calibrators, Simulators & Pumps

MU

Industrial pH & Conductivity Equipment

DATA ACQUISITION

MU

Data Acquisition & Engineering Software

MU

Communications-Based Acquisition Systems

MU

Plug-in Cards for Apple, IBM & Compatibles

MU

Datalogging Systems

MU

Recorders, Printers & Plotters

HEATERS

MU

Heating Cable

MU

Cartridge & Strip Heaters

MU

Immersion & Band Heaters

MU

Flexible Heaters

MU

Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

MU

Metering & Control Instrumentation

MU

Refractometers

MU

Pumps & Tubing

MU

Air, Soil & Water Monitors

MU

Industrial Water & Wastewater Treatment

MU

pH, Conductivity & Dissolved Oxygen Instruments

M-4178/0805