Thermo Fisher Scientific ECFP21A1A1 User Manual
Instruction Manual
ECFP21A1A1 Differential pH Sensor
1 ½ Inch NPT Mounting Threads
Copyright © 2006 All rights reserved.
Eutech Instruments Pte Ltd
68X216866 Rev 0 10/04
Blk 55, Ayer Rajah
Crescent, #04-16/24
Singapore 139949
+65 6778 6876
+65 67730836 fax
www.thermofisher.com
TABLE OF CONTENTS
TABLE OF CONTENTS.................................................................................................................................. 2
PREFACE....................................................................................................................................................... 3
SAFETY INFORMATION............................................................................................................................... 4
INTRODUCTION........................................................................................................................................... 5
1.1. General Information...............................................................................................................................................5
1.2. Intended use.............................................................................................................................................................5
1.3. Safety Instructions ..................................................................................................................................................6
1.4. Removal from Service / Correct Disposal of the Sensor.............................................................................6
PRODUCT DESCRIPTION............................................................................................................................. 7
2.1 Sensor Description .................................................................................................................................................7
2.2 Specifications ...........................................................................................................................................................8
INSTALLATION ............................................................................................................................................ 9
3.1 Wiring..........................................................................................................................................................................9
3.2 Mounting Hardware...............................................................................................................................................9
pH SENSOR MAINTENANCE...................................................................................................................... 13
4.1 Cleaning the pH Sensor Head.......................................................................................................................... 13
4.2 pH Sensor Refurbishment - Replacing the Salt Bridge and Reference Solution............................. 13
4.3 pH Sensor Troubleshooting ............................................................................................................................. 14
pH SENSOR SPARE PARTS & ACCESSORIES ............................................................................................ 15
5.1 Reference Cell Replacements .......................................................................................................................... 15
5.2 pH Buffer Standards............................................................................................................................................16
WARRANTY................................................................................................................................................ 16
RETURN POLICY ........................................................................................................................................ 16
www.thermofisher.com
PREFACE
This instruction manual serves to explain the use of the ECFP21A1A1 1½ inch pH sensor and is written to
cover as many applications as possible. Please do not hesitate to contact Eutech Instruments or an
authorized representative with questions or concerns.
The information presented in this instruction manual is subject to change without notice as
improvements are made, and does not represent any commitment whatsoever on the part of Eutech
Instruments.
Eutech Instruments cannot accept any responsibility for damage or malfunction of the sensor due to
improper use.
Eutech Instruments Pte Ltd.
All rights reserved
www.thermofisher.com
SAFETY INFORMATION
The ECFP21A1A1 1½ inch pH sensor 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.
Blk 55, Ayer Rajah
Crescent, #04-16/24
Singapore 139949
+65 6778 6876
+65 67730836 fax
www.thermofisher.com
INTRODUCTION
1.1. General Information
Thank you for purchasing the ECFP21A1A1 Differential pH Sensor. This industrial sensor has many
enhanced features that offer superior performance in process applications:
• Differential pH measurement technology minimizes susceptibility to ground loops.
• A built in pre-amplifier eliminates high impedance wiring problems.
• A replaceable heavy-duty quad junction salt bridge for extended life in severe applications.
• A large reference reservoir filled with buffered solution minimizes the effects of dilution and
extends the life of the reference electrode.
• Easily refurbished in the field by replacing the salt bridge and reference solution, extending
the life of the sensor.
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.
Eutech Instruments 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 Eutech Instruments or an authorized representative with any questions.
1.2. Intended use
ECFP21A1A1 1½ inch 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.
Blk 55, Ayer Rajah
Crescent, #04-16/24
Singapore 139949
+65 6778 6876
+65 67730836 fax
www.thermofisher.com
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