Thermo Scientific AquaSensors AnalogPlus User manual

Thermo Scientific AquaSensors™
AnalogPlus™Differential
pH Sensors
User Guide

Thermo Scientific AquaSensors™AnalogPlus™Differential pH Sensor User Guide 2
Safety Information
The Thermo Scientific AquaSensors AnalogPlus pH sensors shall be
installed and operated only in the manner specified. Only a skilled,
trained or authorized person should carry out installation, setup and
operation of the sensor system.
Before using the sensor, make sure that the sensor cable is
connected as specified. Failure to do so may result in permanent
damage to the sensor or controller.
Protection against electric shock will be achieved only by observance
of the corresponding installation rules.

Thermo Scientific AquaSensors™AnalogPlus™Differential pH Sensor User Guide 3
TABLE OF CONTENTS
1. INTRODUCTION............................................................................................................................... 4
1.1. GENERAL INFORMATION .................................................................................................................... 4
1.2. INTENDED USE ................................................................................................................................... 5
2. PRODUCT DESCRIPTION.............................................................................................................. 6
2.1. SENSOR DESCRIPTION ........................................................................................................................ 6
2.2. COMPATIBLE ANALYZERS AND CONTROLLERS.................................................................................. 7
2.3. SPECIFICATIONS ................................................................................................................................. 8
3. INSTALLATION................................................................................................................................ 9
3.1. SENSOR BODY DIMENSIONS............................................................................................................. 11
3.2. IMPORTANT POINTS TO REMEMBER DURING INSTALLATION ........................................................... 12
3.3. WIRING OVERVIEW.......................................................................................................................... 13
3.3.1. Connections for AV88 Controllers ............................................................................... 14
3.3.2. Connections for P99 Controllers.................................................................................. 14
3.4. SENSOR MOUNTING ......................................................................................................................... 15
3.4.1. Pipe Tee Mounting ...................................................................................................... 15
3.4.2. UNION MOUNTING ....................................................................................................................... 17
3.4.3. IMMERSION MOUNTING ............................................................................................................... 19
3.4.4. TRI-CLAMP MOUNTING ................................................................................................................ 21
3.4.5. BALL VALVE MOUNTING............................................................................................................. 22
3.4.6. FLOW CHAMBER MOUNTING ....................................................................................................... 23
3.4.7. WASH HEAD ACCESSORY ............................................................................................................ 23
4. PH SENSOR MAINTENANCE ...................................................................................................... 24
4.1. CLEANING THE PHSENSOR .............................................................................................................. 24
4.2. PHSENSOR REFURBISHMENT -REPLACING THE SALT BRIDGE AND REFERENCE SOLUTION ............ 25
4.3. PHSENSOR TROUBLESHOOTING ...................................................................................................... 26
5. ANALOGPLUS DIFFERENTIAL PH SENSORS AND HARDWARE FOR 1.0-INCH
BODIES ......................................................................................................................................................... 28
6. ANALOGPLUS DIFFERENTIAL PH SENSORS AND MOUNTING HARDWARE FOR 1.5-
INCH BODIES.............................................................................................................................................. 29
7. PH SOLUTIONS AND SALT BRIDGE REPLACEMENTS ...................................................... 30
8. LIMITED WARRANTY.................................................................................................................. 31
9. TERMS AND CONDITIONS.......................................................................................................... 32

Thermo Scientific AquaSensors™AnalogPlus™Differential pH Sensor User Guide 4
1. Introduction
1.1. General Information
Thank you for purchasing a Thermo Scientific AquaSensors AnalogPlus Differential pH Sensor. This
industrial sensor has many enhanced features that offer superior performance in process applications.
The product is designed for continuous use in industrial process applications and complies with safety
regulations currently in force. Improper use could lead to hazards for the user or a third-party, and/or adverse
effects to the plant or other equipment.
Thermo Fisher Scientific does not accept any liability for damage that may arise if information in this
manual is not followed. Therefore, the operating instructions and specifications must be read and
understood by all persons involved in installation and operation of this equipment.
This manual identifies safety instructions and additional information by means of the following symbols:
This symbol draws attention to safety instructions and warnings of potential danger,
which if neglected, could result in injury to persons and/or damage to property.
This symbol identifies additional information and instructions, which if neglected, could
lead to inefficient operation and possible loss of production.
It is recommended that this manual be made accessible to everyone who may need it as a reference.
Please contact Thermo Fisher Scientific or an authorized representative with any questions.

Thermo Scientific AquaSensors™AnalogPlus™Differential pH Sensor User Guide 5
1.2. Intended use
The Thermo Scientific AquaSensors AnalogPlus pH sensor is designed to continuously measure pH and
temperature in aqueous solutions in accordance with the technical product specifications in Section 2.2 of this
manual.
Any other use, or use not mentioned here, that is incompatible with the technical specifications is deemed
inappropriate. The operator is solely responsible for any damage arising from such use.
Other prerequisites for appropriate use include:
• Observing the instructions, notes and requirements set out in this instruction manual.
• Observing all local safety regulations.
• Observing all warnings and cautions in the documentation regarding all products used in this
measurement system, including the pH sensor, mounting hardware, analyzer electronics and
cabling.
• Observing the prescribed environmental and operational conditions.
• Observing chemical compatibility with all wetted materials.
1.3. Safety Instructions
AnalogPlus pH sensors should be installed and operated only by personnel familiar
with the sensor and qualified for such work.
A defective sensor should be returned for repair or replacement. Contact Thermo
Fisher Scientific to obtain a Return Material Authorization (RMA) number.
No modifications to AnalogPlus pH sensors are allowed. The manufacturer/supplier
accepts no responsibility for damage caused by unauthorized modifications. The risk
is borne entirely by the user.
1.4. Removal from Service / Correct Disposal of the Sensor
Removal from Service
• Disconnect the cable wiring from the controller terminal block.
• Remove the sensor from the mounting hardware.
Correct Disposal of Unit
• When the sensor is taken out of service, observe the local environmental regulations for correct
disposal.