Thermo Scientific Scientific AquaSensors DataStick User manual

Thermo Scientific AquaSensors™
DataStick™Measurement
System
User Guide
interchangeable
communication
adapters
interchangeable
sensor heads
universal
sensor module
PLC
MODBUS Toroidal
Resistivity
Conductivity
Ozone
ORP
Dissolved
Oxygen
pH
USB/RS-232
RS-485
ProfiBus
MODBUS
DeviceNet
PDA
PC
SCADA
DCS
PLC
AV38
Local Display
4-20 mA relays

ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. U.S. patent 6,793,787.
AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHuture, Pure Water, Sage, Sensing the Future,
SensorLink, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher.
1-888-pHAX-ION, A+, All in One, Aplus, AQUAsnap, AssuredAccuracy, AUTO-BAR, AUTO-CAL, AUTO DISPENSER, Auto-ID, AUTO-LOG, AUTO-READ,
AUTO-STIR, Auto-Test, BOD AutoEZ, Cable-Free, CERTI-CAL, CISA, DataCOLLECT, DataPLUS, digital LogR, DirectCal, DuraProbe, Environmental Product
Authority, Extra Easy/Extra Value, FAST QC, GAP, GLPcal, GLPcheck, GLPdoc, ISEasy, KAP, LabConnect, LogR, Low Maintenance Triode, Minimum
Stir Requirement, MSR, NISS, One-Touch, One-Touch Calibration, One-Touch Measurement, Optimum Results, Orion Star, Pentrode, pHuture MMS,
pHuture Pentrode, pHuture Quatrode, pHuture Triode, Quatrode, QuiKcheK, rf link, ROSS Resolution, SAOB, SMART AVERAGING, Smart CheK,
SMART STABILITY, Stacked, Star Navigator 21, Stat Face, The Enhanced Lab, ThermaSense, Triode, TRIUMpH, Unbreakable pH, Universal Access are
trademarks of Thermo Fisher.
Guaranteed Success and The Technical Edge are service marks of Thermo Fisher.
PerpHecT meters are protected by U.S. patent 6,168,707.
PerpHecT ROSS electrodes are protected by U.S. patent 6,168,707.
ORION Series A meters and 900A printer are protected by U.S. patents 5,198,093, D334,208 and D346,753.
ionplus electrodes and Optimum Results solutions are protected by U.S. patent 5,830,338.
ROSS Ultra electrodes are protected by U.S. patent 6,793,787.
ORP standard is protected by U.S. patent 6,350,367.
No Cal electrodes are protected by U.S. patent 7,276,142.
© 2010 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries.
The specifications, descriptions, drawings, ordering information and part numbers within this document are subject to change without notice.
This publication supersedes all previous publications on this subject.

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 1
Preface
This user guide serves to explain the use of the Thermo Scientific AquaSensors DataStick measurement
system and is written to cover as many applications as possible. Please do not hesitate to contact
Thermo Fisher Scientific or an authorized representative with questions or concerns.
The information presented in this user guide is subject to change without notice as improvements
are made, and does not represent any commitment whatsoever on the part of Thermo Fisher Scientific.
Thermo Fisher Scientific cannot accept any responsibility for damage or malfunction of the sensor due
to improper use.
Contact Information
To contact Thermo Scientific AquaSensors Technical Support:
Within the United States call 1.800.225.1480 or fax [phone].
Outside the United States call 978.232.6000 or fax [phone].
In Europe, the Middle East and Africa, contact your local authorized dealer.
Visit us on the web at www.thermoscientific.com/water

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 2
Safety Information
The Thermo Scientific AquaSensors DataStick measurement system 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 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™ DataStick™ Measurement System User Guide 3
TABLE OF CONTENTS
1......................................................................................................................................................................................6INTRODUCTION
1.1 GENERAL INFORMATION .....................................................................................................................................................................6
1.2 INTENDED USE ..................................................................................................................................................................................7
1.3 SAFETY INSTRUCTIONS ......................................................................................................................................................................7
1.4 SENSOR CALIBRATION AND REFURBISHMENT EXCHANGE PROGRAM.....................................................................................................7
1.5 REMOVAL FROM SERVICE /CORRECT DISPOSAL OF THE SENSOR.........................................................................................................8
1.5.1 Removal from Service ............................................................................................................................................................8
1.5.2 Correct Disposal of Unit..........................................................................................................................................................8
2PRODUCT DESCRIPTION......................................................................................................................................................................9
3INSTALLATION.....................................................................................................................................................................................14
3.1 UNPACKING.....................................................................................................................................................................................14
3.2 MOUNTING ......................................................................................................................................................................................14
3.2.1 Pipe Tee Mounting ...............................................................................................................................................................15
3.2.2 Union Mounting .................................................................................................................................................................... 16
3.2.3 Immersion Mounting ............................................................................................................................................................. 17
3.2.4 Sanitary Tee Mounting .........................................................................................................................................................18
3.3 COMMUNICATIONS ADAPTER WIRING ................................................................................................................................................20
3.4 DATASTICK USER INTERFACE OPTIONS ............................................................................................................................................21
3.4.1 Network Host Protocols ........................................................................................................................................................21
3.4.2 AV38 Local Display ..............................................................................................................................................................21
3.4.3 AquaComm™ Windows Software.......................................................................................................................................22
®
3.4.4 Open Protocol Commands ...................................................................................................................................................23
4MEASUREMENTS.................................................................................................................................................................................24
4.1 DIFFERENTIAL PHMEASUREMENT ....................................................................................................................................................25
4.1.1 pH Interface Overview..........................................................................................................................................................26
4.1.2 pH Configuration...................................................................................................................................................................26
4.1.3 pH Calibration.......................................................................................................................................................................30
4.1.4 pH Sensor Diagnosis............................................................................................................................................................38
4.1.5 pH Sensor Maintenance .......................................................................................................................................................39
4.2 DIFFERENTIAL ORP MEASUREMENT .................................................................................................................................................42
4.2.1 ORP Interface Overview....................................................................................................................................................... 42
4.2.2 ORP Configuration ...............................................................................................................................................................43
4.2.3 ORP Calibration....................................................................................................................................................................45
4.2.4 ORP Sensor Maintenance....................................................................................................................................................47
4.2.5 ORP Spare Parts..................................................................................................................................................................49
4.3 TWO ELECTRODE CONDUCTIVITY AND RESISTIVITY............................................................................................................................49
4.3.1 Contacting Conductivity/Resistivity Overview....................................................................................................................... 49
4.3.2 Configuration of Contacting Conductivity Sensors ...............................................................................................................50
4.3.3 Contacting Conductivity Calibration......................................................................................................................................62
4.3.4 Contacting Conductivity Maintenance ..................................................................................................................................65
4.4 TOROIDAL CONDUCTIVITY ................................................................................................................................................................66
4.4.1 Toroidal Conductivity Overview ............................................................................................................................................66
4.4.2 Configuration of Toroidal Sensors ........................................................................................................................................ 67
4.4.3 Toroidal Conductivity Calibration..........................................................................................................................................78
4.4.4 Toroidal Conductivity Maintenance ......................................................................................................................................81
4.5 DISSOLVED OXYGEN (PPM AND PPB) AND OZONE ...........................................................................................................................82
4.5.1 Dissolved Oxygen / Ozone Interface Overview ....................................................................................................................82
4.5.2 Configuration of Dissolved Oxygen and Ozone Sensor Heads............................................................................................83

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 4
4.5.3 Dissolved Oxygen Calibration ..............................................................................................................................................87
4.5.4 Dissolved Oxygen Maintenance ...........................................................................................................................................91
4.6 TURBIDITY.......................................................................................................................................................................................91
4.6.1 Drinking Water Turbidity.......................................................................................................................................................92
4.6.2 Wide-Range Turbidity Measurement System.......................................................................................................................92
4.7 TEMPERATURE CALIBRATION............................................................................................................................................................93
5DIAGNOSTICS AND TROUBLESHOOTING........................................................................................................................................95
5.1 DIAGNOSTICS ..................................................................................................................................................................................95
5.2 TROUBLESHOOTING .........................................................................................................................................................................96
5.2.1 pH Sensor Head inspection..................................................................................................................................................97
5.2.2 ORP Sensor Head inspection...............................................................................................................................................97
5.2.3 Dissolved Oxygen and Ozone Sensor Head inspection.......................................................................................................98
5.2.4 Contacting Conductivity Sensor Head inspection.................................................................................................................98
5.2.5 Toroidal Conductivity Sensor Head inspection..................................................................................................................... 98
6PROGRAMMING GUIDE - COMMANDS AND RESPONSES..............................................................................................................99
7FREE CHLORINE CONCENTRATION CALCULATION ....................................................................................................................107
8COMPLIANCE INFORMATION...........................................................................................................................................................109
9LIMITED WARRANTY.........................................................................................................................................................................110
10 TERMS AND CONDITIONS ................................................................................................................................................................111

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 5
Tables of Figures and Tables
Table of Figures
Figure Number and Caption Page
Number
Figure 1: Three Parts of the DataStick 9
Figure 2: The Universal Body
10
Figure 3: Full Array of DataStick Options
10
Figure 4: Configured Analytical Measurements
11
Figure 5: Drinking Water Turbidity System
11
Figure 6: DataStick Interface Options
12
Figure 7: Communications Adapter
12
Figure 8: Mounting Hardware Overview
13
Figure 9:The inner workings of the User-Entered Concentration Table.
61
Figure 10:The inner workings of the User-Entered Concentration Table.
77
Table of Tables
Table Number and Description Page
Number
Table 1: 10 Point Conductivity Vs. Concentration Table
57
Table 2: Concentration Vs Conductivity after Editing
60
Table 3: 10 Point Conductivity Vs. Concentration Table
73
Table 4: Concentration Vs Conductivity after Editing
76
Table 5: Data Reporting
99
Table 6: Change Measurement Configuration Settings
100
Table 7: View Configuration Settings
101
Table 8: Calibration Commands
102
Table 9: Diagnostics and System Information
105

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 6
1INTRODUCTION
1.1 General Information
Thank you for purchasing the Thermo Scientific AquaSensors DataStick Analytical Measurement System. This is a very robust and
versatile product intended for continuous use in industrial applications and complies with safety regulations currently in force. Unique
features include:
•Pre-calibrated sensors for plug and play capability.
•Direct connection to computer control systems without the need for analyzer electronics boxes.
•Sensor heads are easily serviced and replaced in the field minimizing downtime.
•Any sensor type in the DataStick family can be used with any DataStick thus making it possible to convert
a measurement point from pH to toroidal conductivity (for instance), simply by changing sensor heads.
•Performance is not affected by cable length and can be run up to 3,000 feet depending on the selected
communications protocol.
Thermo Fisher Scientific does not accept any liability for damage that may
arise if information in this user guide 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 user guide 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 user guide 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™ DataStick™ Measurement System User Guide 7
1.2 Intended Use
The DataStick Analytical System is designed for continuous industrial applications. Interchangeable measurement and communications
components allow for quick replacement or reconfiguration.
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 user guide.
•Observing all local safety regulations.
•Observing all warnings and cautions in the documentation regarding all products used in this measurement system,
including the sensor, mounting hardware, and cabling.
•Observing the prescribed environmental and operational conditions.
•Observing chemical compatibility with all wetted materials.
1.3 Safety Instructions
The DataStick Analytical System should be installed and operated only by personnel familiar with
the sensor and qualified for such work.
A defective sensor should be returned to Thermo Fisher Scientific for repair or replacement.
Contact Thermo Fisher Scientific to obtain a Return Material Authorization (RMA) number.
No modifications to the DataStick Analytical System components are allowed. The manufacturer/
supplier accepts no responsibility for damage caused by unauthorized modifications. The risk is borne
entirely by the user.
1.4 Sensor Calibration and Refurbishment Exchange Program
DataStick sensor heads are pre-calibrated and can be exchanged in the field to maintain accuracy. Thermo Fisher Scientific provides
service to refurbish and calibrate used sensors and return them for service. Please call the factory to inquire about the program.

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 8
The following advisories and warnings must be followed with all DataStick Products:
1.5 Removal from Service / Correct Disposal of the Sensor
1.5.1 Removal from Service
d for doing this will depend on the termination hardware that is chosen. In the case of a USB
bserve the local environmental regulations for correct disposal.
Disconnect the cable wiring. The metho
connection, just remove the connector. In the case of a screw terminal block, remove the black ground wire last.
Remove the sensor from the mounting hardware.
1.5.2 Correct Disposal of Unit
When the sensor is taken out of service, o
This equipment is suitable for use in Class I, Division 2,
Groups A, B, C, d or Non-Hazardous Locations Only
The equipment shall be supplied from a Class 2 power input.
The supply is from an isolated source, maximum 30 VDC.
DataStick bodies constructed from polymeric materials Noveon Corzan
Type 3218 shall not be used in applications exceeding a maximum
operating ambient of 50C.
Input and output wiring must be in accordance with Class I, Div.2 wiring
methods and in accordance with the authority having jurisdiction.
Warning: Explosion Hazard – Substitution of components may impair
suitability for Class I, Division 2.
Warning – Explosion Hazard – Do not disconnect equipment unless power
has been switched off or the area is known to be non-hazardous.

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 9
2PRODUCT DESCRIPTION
The DataStick analytical measurement system consists of three highly customizable parts designed for direct connection to control
systems without the need for intermediate analyzer electronics. A communications adapter plugs into the back of the system and provided
direct interactive communication of measurement, configuration, calibration and diagnostic information with computers and networks.
A full family of sensor heads plug into the front of the system and automatically provide calibrated high-resolution measurements.
Please refer to performance specifications in parameter specific datasheets.
Figure 1: Three Parts of the DataStick
Communications Adapter
Provides power and direct interactive communication
with control systems and computers.
Communications Selections: RS-232 ASCII, RS-232 DF1,
RS-485 MODBUS, PROFIBUS, DEVICENET, ETHERNET,
USB, WIRELESS…
Body Material: 316-Stainless Steel, CPVC, Ryton®, PEEK®
Cable length and termination: 10 feet to 1000 feet
(Consult the factory for other material choices).
DataStick Sensor Head
Pre-calibrated sensor heads can be replaced
at any time.
Sensor head offering includes:
Two electrode conductivity, two electrode
resistivity, toroidal conductivity, differential pH,
differential ORP, dissolved oxygen, turbidity
and ozone.
New sensor parameters are continually being
added to the DataStick family. Check with the
factory for a complete list.
DataStick Sensor Body
Universal conversion of sensor signals. Interactive
communication for data reporting, configuration
and calibration.
Insertion, submersion and sanitary fittings.
Body Material: 316-Stainless Steel, CPVC, Ryton®, PEEK®
(Consult the factory for other material choices).

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 10
The heart of the DataStick measurement system is a 1-inch tube body with encapsulated measurement electronics that automatically convert sensor
signals into calibrated engineering units. This single tube body in essence takes the place of a full family of analyzer electronics boxes. The DataStick
works seamlessly with a variety of communications adapters so that it can operate directly with any computer system. These features allow for quick
changes to the measurement system without significant down time.
Figure 2: The Universal Body
This family of plug and play communications adapters and sensor heads makes the DataStick the most versatile and accurate analytical
measurement system on the market. Any sensor type can be plugged in to obtain calibrated data. Any computer system can be set up to
communicate directly by configuring the DataStick system with the appropriate communications adapter. If local display and standard 4-20
milliamp data reporting is desired then the DataStick can be connected to Thermo Scientific AquaSensors AV38 Local display as shown in
the upper left corner of Figure 3. The AV38 can work with multiple DataSticks running the Modbus protocol.
Figure 3: Full Array of DataStick Options
DataStick system components can be exchanged in the field. Sensor heads will remain calibrated when moved from one DataStick
to another making it possible to perform calibrations in the laboratory and then just exchange sensor heads in the field. Systems are
shown here in stainless steel and PEEK®but are also offered in Ryton®and CPVC for a wide spectrum of applications.
1-inch NPT Threads
(Immersion)
Insert sensor head
this end.
1-inch NPT Threads
(Insertion)
Flat for sanitar
y
ada
p
ters
Insert communications
adapter this end. Wrench Flats

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 11
Dissolved Oxygen
and Ozone Series
Interchangeable pre-calibrated sensor heads make it possible to quickly configure a DataStick for any application with a full series
of analytical measurements as shown in Figure 4.
Figure 4: Configured Analytical Measurements
DataStick systems can also be configured into more complex systems. Drinking water turbidity measurements are provided using
a DataStick installed in a specially designed sample chamber that has a white light source in the lid. The system provides very accurate
turbidity measurements that can be calibrated and configured locally using the AV38 display or it can be networked directly to a computer
system for measurement, calibration, configuration and diagnostics.
Figure 5: Drinking Water Turbidity System
Differential pH Series ORP Series
Two Electrode
Conductivity Series
Toroidal
Conductivity Series
Turbidity
0 to 4000 NTU

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 12
Schematically as shown in Figure 6, any DataStick system can be connected directly to a computer network to obtain 24 bit data and
interactive measurement, configuration, calibration and diagnostic capability.
Figure 6: DataStick Interface Options
Interchangeable communications adapters currently supported include:
Communications
Adapter Suggested Application Standard Software Interface Reference
USB ASCII Laboratory PC
Field Diagnostics with Laptop AquaComm™, HyperTerminal ASCII Commands and Responses shown
in the appendix of this user guide.
RS-232 ASCII Laboratory PC AquaComm™, HyperTerminal ASCII Commands and Responses shown
in the appendix of this user guide.
Modbus RTU
over RS-232
or RS-485
AV38 Local Display
PLC with Modbus Network AquaComm™, ModScan32 AV38 User guide
Modbus Communications User guide
DeviceNet PLC with DeviceNet Network DeviceNet PLC Tools DeviceNet Communications User guide
Electronic Data Sheet (EDS file)
CANopen PLC with CANopen Network CANopen PLC Tools CANopen Communications User guide
Profibus DP V1 PLC with Profibus Network Profibus Gateway Tools Modbus/Profibus Gateway User guide
Ethernet/IP Web connected Web ready Ethernet User guide
Figure 7: Communications Adapter
PC, PLC, DCS or PDA
Power: 24VDC
or 120/240 VAC
2 Isolated mA Loo
p
s
2 Form C Rela
y
s
Modbus
DataStick
AV38 Local Display
Digital Gateway
Digital Gateway

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 13
DataStick systems use 1-inch NPT threads for insertion and immersion applications. The threads on the back-body are used for
submersion and Thermo Scientific AquaSensors Union Mount hardware and the front threads are used for insertion into standard plumbing
tees. A variety of sanitary mounts are available with DataSticks that have a special retaining ring just below the hex flats. PEEK®sensor
heads with sanitary face seals should be used in sanitary applications along with stainless steel sensor bodies that have special mounting
rings between the wrench flats and the NPT threads.
Figure 8: Mounting Hardware Overview
Use a 1-¼ inch wrench to turn the sensor body into pipe fittings that have internal 1-inch NPT threads. Use Teflon tape on all threads
to insure a proper seal. Do not use liquid thread compounds on DataStick threads.
Use the back threads of DataStick for
extension pipes. Integral junction
boxes are used for wire termination. For Sanitary applications use
Thermo Scientific
AquaSensors fittings.
Use special Thermo Scientific
AquaSensors Union Mount fittings
for applications that require frequent
removal for calibration.
Use the front threads for
insertion into pipe tees.
Submersion
Sanitary
Union Mount
Tee Mount
Ball Valve
For applications requiring
extraction in a pressurized line

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 14
3Installation
DataStick sensors are designed for installation in a variety of insertion, immersion and sanitary applications. Although the communications
cable is sealed and strain relieved for all communications adapters, we recommend that the cable be protected from process and heat
by being run through conduit or cable trays. User interface software should be installed on a chosen computer or a local smart junction box
should be installed for local calibration and monitoring.
3.1 Unpacking
Inspect the equipment and packing materials for signs of shipping damage. If there is any evidence of damage, notify the transit carrier
immediately. After unpacking, it is recommended to save the shipping carton and packing materials in case the measurement equipment
must be stored or re-shipped.
Sensor heads with wetted parts are shipped with yellow caps and include pH, ORP, DO and Ozone measurements. If these sensor heads
are to be stored for more than two weeks before installation they should be inspected to be sure the electrodes remain moist. The cap
should contain moist absorbent material that is in physical contact with the electrode when the cap is installed or secured. It the sensor
head has dried out, refer to the maintenance and refurbishment sections of this user guide.
3.2 Mounting
Use a 1-¼ inch wrench to turn the sensor body into pipe fittings that have internal 1-inch NPT threads. Use Teflon tape on all threads
to insure a proper seal. Do not use liquid thread compounds on DataStick threads.
DataStick systems use 1-inch NPT threads for insertion and immersion applications. The threads on the back-body are used for
submersion and Thermo Scientific AquaSensors Union Mount hardware. The front threads are used for insertion into standard plumbing
tee’s. PEEK® sensor heads with sanitary face seals should be used in sanitary applications along with stainless steel sensor bodies that
have special mounting rings between the wrench flats and the NPT threads.
We recommend the Thermo Scientific AquaSensors Union Mount hardware for applications where the sensor is removed more than once
per week for calibration or maintenance.
Save the protective cap and use it to keep
electrodes hydrated whenever the sensor
is removed from service.
The sensor should be positioned at least
15°up from horizontal. This will insure that
entrained air does not form a pocket around
the sensor head.
DO NOT USE PIPE SEALANT. Pipe
sealants may not provide adequate sealing
or may react with different plastic materials.
Use Teflon® thread tape.
DO NOT OVER TIGHTEN!
Maximum torque: 65 lbs⋅inch (7 N⋅m)

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 15
3.2.1 Pipe Tee Mounting
Normally available pipe tees vary widely in construction dimensions. CPVC pipe tees are most generally available with schedule 80 walls.
Stainless steel tees have thinner walls that change the final position of the sensor. Common mounting arrangements are shown.
Detailed Pipe Tee Installation Instructions
1. Wiring:
a. Route the cable either through conduit or on a cable tray.
b. Insert the sensor cable into junction box through a watertight cord grip.
c. Connect the sensor wires into the terminal block as specified on the cable label.
2. Mount:
a. Apply Teflon®tape to the sensor body threads.
b. Insert the sensor into the tee and slowly turn clockwise until secure. Tighten the
sensor with a wrench until snug to prevent leaking. Be sure the pipe remains full
when the sensors are installed.
The sensor head is pre-calibrated at the factory and should not require additional calibration
on initial installation unless the DataStick has been in storage for more than two weeks.

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 16
3.2.2 Union Mounting
Union mount hardware makes it easy to remove and insert the sensor for applications where calibration and/or cleaning are frequent.
Union Mount Advantages:
•Optimal positioning of sensing surface.
•Trouble-free installation.
•Quick disconnect.
•No cable twisting during installation.
•Easy maintenance.
Detailed Union Mount Installation Instructions
1. Wiring:
a. Apply Teflon®tape to the rear sensor body threads and pass the cable through the adapter. Thread the adapter onto the sensor
clockwise until it is secure.
b. Pass the union collar over the cable and onto the adapter with the threads facing the front of the sensor.
c. Route the cable either through conduit or on a cable tray.
d. Insert the sensor cable into the junction box through a watertight cord grip.
e. Connect the sensor wires into the terminal block as specified on the cable label.
2. Mount:
a. Assemble the lower portion of the mounting hardware by threading the pipe nipple into the threaded flange and the tee.
Apply Teflon®tape to the threads.
b. Inspect the O-ring on the union-mounting threaded flange for imperfections or particles of dirt that may prevent the O-ring seal
from seating properly.
c. Carefully insert the sensor into the Thermo Scientific AquaSensors union-mounting tee. Turning the retaining collar clockwise
and hand tighten until snug. Be sure the pipe remains full when the sensor is installed.

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 17
3.2.3 Immersion Mounting
For immersion mounting applications the sensor is connected to a 1 inch to 1.5 inch reducing coupling. A 1.5 inch extension pipe is added
to protect the cable from damage.
Detailed Insertion Mount Installation Instructions
1. Wiring:
a. Route the sensor cable through the 1.5 inch extension pipe.
b. Apply Teflon®tape to the sensor threads.
c. Attach the sensor to the 1.0 inch NPT reducing coupling
by turning the sensor in a clockwise direction until secure.
d. Route the cable to the junction box and use an extension cable.
e. Connect the extension wires into the computer terminal block.
2. Mount:
a. Secure the pipe assembly so that the sensor is fully immersed
in the process. Handrail mounting hardware can be ordered from
Thermo Fisher Scientific.

Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 18
3.2.4 Sanitary Tee Mounting
For sanitary mounting applications the sensor is connected to an adapter with a retaining collar and clamped into a short-branch
sanitary tee.
Detailed Sanitary Mount Installation Instructions
Wiring:
a. Thread the retaining collar over the cable and onto the sensor
with the threads facing the front of the sensor.
b. Route the cable either through conduit or on a cable tray.
c. Insert the sensor cable into the junction box through
a watertight cord grip.
d. Connect the sensor wires into the terminal block as shown
on the cable label.
Mount:
a. Insert the sensor into the adapter making sure the front o-ring
on the sensor is seated.
b. Thread the retaining collar into the adapter and tighten with
a wrench until the face of the sensor head is flush with the
adapter and the o-ring forms a seal.
c. Place a sanitary gasket on the branch flange.
d. Insert the sensor with the adapter into the branch of the tee;
be sure the pipe remains full while installing to minimize trapped air.
e. Install and tighten the sanitary clamp to retain the sensor and
adapter in the tee.