Emerson 396RVP, 396R User Manual
Retractable pH/ORP Sensors
Instruction Manual
PN 51-396R/rev.J
February 2011
Model 396R and 396RVP
DANGER
HAZARDOUS AREA INSTALLATION
Installations near flammable liquids or in hazardous
area locations must be carefully evaluated by qualified
on site safety personnel. This sensor is not Intrinsically
Safe or Explosion Proof.
To secure and maintain an intrinsically safe installation, the certified safety barrier, transmitter, and sensor combi nation must be used. The installation system must comply with the governing approval
agency (FM, CSA or BASEEFA/CENELEC) hazardous area classification requirements. Consult your
analyzer/transmitter instruc tion manual for details.
Proper installation, operation and servicing of this
sensor in a Hazardous Area Instal lation is entirely
the responsibility of the user.
ESSENTIAL INSTRUCTIONS
READ THIS PAGE BEFORE PROCEEDING!
Rosemount Analytical designs, manufactures, and tests its products to
meet many national and international standards. Because these instruments are sophisticated technical products, you must properly install,
use, and maintain them to ensure they continue to operate within their
normal specifications. The following instructions must be adhered to and
integrated into your safety program when installing, using, and maintaining Rosemount Analytical products. Failure to follow the proper
instructions may cause any one of the following situations to occur: Loss
of life; personal injury; property damage; damage to this instrument; and
warranty invalidation.
• Read all instructions prior to installing, operating, and servicing the
product. If this Instruction Manual is not the correct manual, telephone
1-800-654-7768 and the requested manual will be provided. Save this
Instruction Manual for future reference.
• If you do not understand any of the instructions, contact your
Rosemount representative for clarification.
• Follow all warnings, cautions, and instructions marked on and
supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and maintenance of the product.
• Install your equipment as specified in the Installation Instructions of
the appropriate Instruction Manual and per applicable local and
national codes. Connect all products to the proper electrical and
pressure sources.
• To ensure proper performance, use qualified personnel to install, operate, update, program, and maintain the product.
• When replacement parts are required, ensure that qualified people
use replacement parts specified by Rosemount. Unauthorized parts
and procedures can affect the product’s performance and place the
safe operation of your process at risk. Look alike substitutions may
result in fire, electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are
in place, except while maintenance is being performed by qualified
persons, to prevent electrical shock and personal injury.
About This Document
This manual contains instructions for installation and operation of the Model 396R & 396RVP TUpH
Retractable pH/ORP Sensors. The following list provides notes concerning all revisions of this document.
Rev. Level Date Notes
A 1/96-1/01 This is the initial release of the product manual. The manual has been reformatted to reflect the
Emerson documentation style and updated to reflect any changes in the product offering.
B 7/02 Revised multiple drawings.
C 8/02 Added drawing #40105549, rev. D.
D 4/03 Revised drawing #40396R21/22 on page 18.
E 8/03 Added Silcore information.
F 9/04 Updated ordering info and added/revised wiring drawings.
G 1/05 Delete obsolete options.
H 1/07 Miscellaneous revisions.
I 11/10 Removed mention of patents and updated dnv logo.
J 2/11 Added ATEX directive and updated caution boxes per ANSI standard.
RETRACTABLE SENSORS
Retractable sensors must not be inserted nor
retracted when process pressures are in excess
of 64 psig (542kPa) for option 21 or 35 psig
(343 kPa) for option 25.
The wetted sensor materials may not be compatible with process com position and operating
conditions.
Application compat ibility is entirely
the
responsibility of the user.
CAUTION
SENSOR/PROCESS APPLICATION COMPATIBILITY
WARNING
ATEX DIRECTIVE
Special Conditions for safe use
1. All pH/ORP sensors have a plastic enclosure which must only be cleaned with a damp cloth to avoid the danger due
to a build up of an electrostatic charge.
2. All pH/ORP sensor Models are intended to be in contact with the process fluid and may not meet the 500V r.m.s. a.c.
test to earth. This must be taken into consideration at installation.
MODEL 396R pH/ORP TABLE OF CONTENTS
MODEL 396R AND 396RVP
RETRACTABLE pH/ORP SENSORS
TABLE OF CONTENTS
Section Title Page
1.0 DESCRIPTION AND SPECIFICATIONS........................................................... 1
1.1 Features and Applications................................................................................. 1
1.2 Performance and Physical Specifications ......................................................... 2
1.3 Ordering Information ......................................................................................... 3
2.0 INSTALLATION ................................................................................................. 6
2.1 Unpacking and Inspection................................................................................. 6
2.2 Mechanical Installation ..................................................................................... 6
3.0 WIRING MODEL 396R...................................................................................... 14
4.0 WIRING MODEL 396RVP................................................................................. 23
5.0 START UP AND CALIBRATION........................................................................ 30
5.1 Start up.............................................................................................................. 30
5.2 pH Calibration ................................................................................................... 30
5.3 ORP Calibration ................................................................................................ 31
6.0 MAINTENANCE ................................................................................................ 32
6.1 Maintenance...................................................................................................... 32
6.2 Sensor Removal................................................................................................ 32
6.3 pH Electrode Cleaning ...................................................................................... 32
6.4 Platinum Electrode Cleaning............................................................................. 33
6.5 Automatic Temperature Compensation............................................................. 33
6.6 Sensor Tube Replacement................................................................................ 33
7.0 DIAGNOSTIC AND TROUBLESHOOTING ...................................................... 36
7.1 Diagnostics and Troubleshooting with Model 54/3081 pH/ORP Diagnostics.... 36
7.2 Troubleshooting without Diagnostics................................................................. 37
8.0 RETURN OF MATERIAL................................................................................... 38
LIST OF TABLES
Table No. Title Page
1-1 Commonly Used Accessories for Model 396R.................................................. 4
1-2 Other Accessories for Model 396R ................................................................... 4
1-3 Commonly Used Accessories for Model 396RVP ............................................. 5
1-4 Other Accessories for Model 396RVP............................................................... 5
5-1 ORP of Saturated Quinhydrone Solutions ........................................................ 31
6-1 Roand R1Values for Temperature Compensation Elements........................... 33
6-2 Temperature vs. Resistance of Auto T.C. Elements .......................................... 33
7-1 Troubleshooting with Diagnostics...................................................................... 36
7-2 Troubleshooting without Diagnostics................................................................. 37
i
MODEL 396R pH/ORP TABLE OF CONTENTS
LIST OF FIGURES
Figure No. Title Page
1-1 Cross Section Diagram of the TUpH Reference Technology ............................ 1
2-1 Exploded View of Ball Valve Kit PN 23240-00 used with process connector .
PN 23166-00 (or PN 23166-01) ........................................................................ 7
2-2 Typical Mounting Configurations for Model 396R ............................................. 8
2-3 Typical Mounting Configurations for Model 396RVP......................................... 8
2-4 Dimensional Drawing — Model 396R with Optional Ball Valve PN 23765-00 .. 9
2-5 Dimensional Drawing — Model 396R with Optional Ball Valve PN 23240-00 .. 10
2-6 Dimensional Warning Label for Hemi Bulb Sensors and Sensor Diagram ....... 11
2-7 Dimensional Drawing — Model 396RVP with Optional 1-1/2 inch Ball Valve ..
PN 23240-00 ..................................................................................................... 12
2-8 Dimensional Drawing — Model 396RVP with Optional 1-1/4 inch Ball Valve ..
PN 23765-00 ..................................................................................................... 13
3-1 Cable Preparation Instructions for Model 396R ................................................ 14
3-2 Wiring Model 396R-54Model 54e, 81, 3081, 4081, 5081 pH/ORP ................... 15
3-3 Wiring Model 396R-54 with Remote Junction Box & Preamp (PN 23555-00) ........ 15
3-4 Wiring Model 396R-50 for use with Remote Junction Box (PN 23309-03)............. 16
3-5 Wiring Model 396R-54 for use with Remote Junction Box (PN 23309-04)............. 16
3-6 Wiring Model 396R-54 to Model 1181 pH/ORP ................................................... 17
3-7 Wiring Model 396R-54 to Models 1054A/B pH/ORP, 2054 pH, and 2081 ............. 17
3-8 Wiring Model 396R-54 to Model SCL-(P/Q)......................................................... 18
3-9 Wiring Model 396R-54-61 to Model Xmt-P-HT-10.................................................... 18
3-10 Wiring Model 396R-50/54-60 for use with Sensor Head J-Box......................... 19
3-11 Wiring Model 396R-54-61 for use with Sensor Head J-Box.............................. 19
3-12 Wiring Model 396R-50 for use with J-Box (PN 23707-00) to Models 1181, .....
1050, 1060, 1030, 1023 pH Transmitters ......................................................... 20
3-13 Wiring Model 396R-54 for use with J-Box (PN 23708-01) to Models 1054, .....
2054, and 2081 pH Transmitters....................................................................... 21
3-14 Wiring Model 396R-( )-54 to Model 1055-10-22-32 .......................................... 22
3-15 Wiring Model 396R-54-61 to Model 1055-10-22-32.......................................... 22
4-1 Wire Functions and Pin Connections for Model 396RVP.................................. 23
4-2 Wiring Model 396RVP to Model 81 ................................................................... 24
4-3 Wiring Model 396RVP to Model 1181 ............................................................... 24
4-4 Wiring Model 396RVP to Model 81 thru a Remote J-Box ................................. 24
4-5 Wiring Model 396RVP to Models 1181/1050/1060/1003/1023 thru Remote J-Box 24
4-6 Wiring Model 396RVP to Model 2081 ............................................................... 25
4-7 Wiring Model 396RVP to Models 3081, 4081, and 5081 .................................. 25
4-8 Wiring Model 396RVP to Model 2081 thru a Remote J-Box ............................. 25
4-9 Wiring Model 396RVP to Models 3081, 4081, and 5081 thru a Remote J-Box 25
4-10 Wiring Model 396RVP to Model 1054 ............................................................... 26
4-11 Wiring Model 396RVP to Models 1054A/B and 2054........................................ 26
4-12 Wiring Model 396RVP to Model 1054 thru a Remote J-Box ............................. 26
4-13 Wiring Model 396RVP to Models 1054A/B and 2054 thru a Remote J-Box...... 26
4-14 Wiring Model 396RVP to Model 54 and 54e ..................................................... 27
4-15 Wiring Model 396RVP to Model 54 thru a Remote J-Box ................................. 27
4-16 Wiring Model 396RVP to Model 2700 ............................................................... 27
4-17 Wiring Model 396RVP to Model SCL-(P/Q) ...................................................... 27
4-18 Wiring Model 396RVP to Model Xmt-P-HT-10 .................................................. 28
4-19 Wiring Model 396RVP to Model 1055pH/pH..................................................... 28
4-20 Wiring Model 396RVP to Model 1055pH/pH thru a Remote J-Box................... 28
4-21 Wiring Model 396RVP to Model 1055-10-22-32................................................ 29
6-1 Sensor Tube Replacement................................................................................ 35
6-2 Male Connector Tightening Diagram................................................................. 35
ii
1.1 FEATURES AND APPLICATIONS
The Model 396R and 396RVP Sensors are specifically
designed for improved life in harsh, dirty applications where
a separate sample stream is difficult to provide and greater
insertion depths are required. Model 396R is designed for
use with a 1-1/4 in. or 1-1/2 in. ball valve for hot tap installation. The Model 396R is constructed of molded polypropylene
housed in a titanium tube with EPDM seals to provide maximum chemical resistance
2,3
.
Model 396R also features a titanium solution ground for
advanced sensor diagnostics when used with the Models
1055, Xmt-P, 54e, 81, 3081, or 5081 pH/ORP Analyzer/
Transmitter. Advanced sensor diagnostics provide preventative maintenance by notifying the operator for replacement
and cleaning of an aged or fouled sensor for continuous
optimum performance.
The sensor also features a shrouded tip for protection from
breakage while allowing process to flow by the glass electrode for accurate and reliable pH measurement.
The Model 396R is available without an integral preamplifier
only and 15 ft or 9.5 in. of integral high quality 9 conductor
cable. The preamplifier must be housed in a remote location
or in a J-Box kit for attachment at the rear, cable end of the
sensor (order separately) or integral to the Analyzer/
Transmitter. The Model 396R is compatible with all
Rosemount Analytical and various other manufacturers
instruments.
The entire line of TUpH model sensors now incorporate
the new SILCORE
1
technology contaminant barrier. This
triple-seal barrier prevents moisture and material impurities
from migrating to the pH sensor’s reference electrode’s metal
lead wire. By preventing these contaminants from compromising the integrity of the pH measurement, sensor life is
increased, especially at higher temperatures where
increased migrations occur. In addition, the SILCORE technology provides added protection against sensor failure due
to vibrations and shock by transferring damaging energy
away from the glass-to-metal seal.
Model 396RVP: Rosemount Analytical has recently released
Model 396RVP. This model has identical performance and
physical specifications to the Model 396R (see Section 1.2)
with the following exception: the Model 396RVP has a
Variopol (VP) connector on the back end of the sensor in
place of a cable.
1
Silcore is a trademark of Rosemount Analytical.
MODEL 396R pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
1
FIGURE 1-1. Cross Section Diagram of the TUpH Reference Technology
All TUpH sensors are designed with a large area reference junction, helical reference pathway, and an AccuGlass pH
glass bulb. This sensor technology ensures superior performance while only requiring minimal maintenance.
MODEL 396R pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
MODEL 396R
Measured Range:
ORP: -1500 to 1500mV
pH: 0 to 14
Percent Linearity Over pH Range:
Wetted Materials: Polypropylene, EPDM, titanium,
glass, (platinum: ORP only)
Process Connections: 1-1/2 or 1-1/4 in. with ball
valve, 1 in. without ball valve
Cable: Integral 15 ft or 9.5 in. 9 conductor cable
except option 60 (9.5 in. coaxial cable with
BNC) Recommended Interconnect (PN
9200273)
Maximum Process Pressure and Temperature:
Hemi bulb: 150 psig (1136 kPa abs) at 212°F
(100°C )
Flat bulb: 100 psig (790 kPa abs) at 212°F
(100°C )
Maximum Pressure at Retraction or Insertion:
Code 21: 64 psig (542 kPa abs)
Code 25: 35 psig (343 kPa abs)
Minimum Conductivity: 100 µS/cm
Weight/Shipping Weight:
Sensor:
Code 21: 2.0 lb/3.0 lb (.9 kg/1.40 kg)
Code 25: 3.0 lb/4.0 lb (1.40 kg/1.80 kg)
Ball Valve:
PN 23240-00; 5 lb/7 lb (2.25 kg /3.20 kg)
PN 23634-00 8 lb/10 lb (3.65 kg/4.55 kg)
J-Box: 3 lb/4 lb (1.40 kg/1.80 kg)
MODEL 396RVP
Measured Range:
ORP: -1500 to 1500mV
pH: 0 to 14
Available pH glass types: GPLR hemi bulb or flat bulb
Wetted Materials: Polypropylene, EPDM, titanium,
glass, (platinum: ORP only)
Process Connections: none, use 1-inch process con-
nector or ball valve kit (1-1/2 inch or 1-1/4 inch)
Temperature Range: 0 to 100C (32 to 212F)
Pressure Range (hemi bulb): 100-1136 kPa abs
(0-150 psig)
Pressure Range (flat bulb): 100-790 kPa abs
(0-100 psig)
Maximum Pressure at Retraction or Insertion:
Code 21: 64 psig (542 kPa abs)
Code 25: 35 psig (343 kPa abs)
Minimum Conductivity: 75 µS/cm, nominal
Preamplifier options: remote
Weight/Shipping Weight:
Sensor: Code 21: 2.0 lb/ 3.0 lb (.9 kg/1.40 kg)
Code 25: 3.0 lb/4.0 lb (1.40 kg/1.80 kg)
Ball Valve: PN 23240-00; 5 lb/7 lb (2.25 kg /3.20 kg)
Hemi Bulb Flat Bulb
0-2 pH 94% 93%
2-12 pH 99% 98%
12-13 pH 97% 95%
13-14 pH 92% —
1.2 PERFORMANCE AND PHYSICAL SPECIFICATIONS
2
3
MODEL 396R pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
1.3 ORDERING INFORMATION
The Model 396R Sensor is housed in a titanium tube, with a polypropylene reference junction and titanium solu-
tion ground for use with a ball valve (order separately) for hot tap applications. The sensor is available with either
a hemi or flat glass pH electrode and features a shrouded glass/platinum electrode and PT100 or 3K temperature
compensation. The 396R is available with 9.5 in. or 15 ft of integral cable. The 396R sensor is not available with
a preamp. Junction box kits with preamps must be ordered separately if the analyzer/transmitter does not have
an integral preamp within 15 ft. of the probe. Process connector and ball valve assemblies must also be ordered
separately.
CODE MEASURING ELECTRODE TYPE (Required Selection)
10 GPLR hemi glass, General Purpose Low Resistivity
12 ORP
13 GPLR flat glass, General Purpose Low Resistivity
CODE SENSOR LENGTH
21 21 in. Titanium Tube
25 36 in. Titanium Tube
CODE ANALYZER/TC COMPATIBILITY (Required Selection)
50 For Models 1181 (3K TC)
54 For Models 1054B, 1055, 2081,54e, 81, 3081, 4081, 5081, Xmt, SCL-(P/Q), (PT 100 RTD)
CODE OPTIONAL OPTIONS
60 9.5 in. Cable with BNC (for use with Model 1181, 1054 series, 2054, 2081 Sensor Head J-Boxes)
61 9.5 in. Cable no BNC (Not Valid w/Option 50) (for use with Model 54e, 1055, 81, 3081, 4081, 5081, Xmt
Sensor Head J-Boxes)
396R - 10 - 21 - 54 EXAMPLE
MODEL
396RVP TUpH RETRACTABLE pH/ORP SENSOR
CODE MEASURING ELECTRODE TYPE (Required Selection)
10 Hemi bulb, General Purpose Low Resistivity
12 ORP
13 Flat, GPLR glass
CODE SENSOR LENGTH (Required Selection)
21 21 in. Titanium Tube
25 36 in. Titanium Tube
CODE ANALYZER/TC COMPATIBILITY (Required Selection)
50 For Models 1181 (3K TC)
54 For Models 1054B, 1055, 2081,54e, 81, 3081, 4081, 5081, Xmt, SCL-(P/Q), (Pt 100 RTD)
The Model 396RVP ball valve retractable sensor features a gel-filled electrolyte solution with the large area,
coating resistant TUpH polypropylene reference junction and a standard hemi or optional flat glass bulb. Model
396RVP is housed in a Titanium sensor tube and can be mounted directly into the process using a 1 in. MNPT
threaded process connector and a ball valve assembly kit (both ordered separately). It is offered with the watertight Variopol sensor-to-cable connector and uses the mating connector cable (ordered separately). Also available is a choice of temperature element, 3 K Balco or Pt 100 RTD. A remote preamplifier found in the
analyzer/transmitter or in a junction box (ordered separately) must be used with this sensor for a reliable signal
transmission.
396RVP- 10 - 21 - 54 EXAMPLE
MODEL
396R TUpH RETRACTABLE pH SENSOR
4
TABLE 1-2. OTHER ACCESSORIES FOR MODEL 396R
TABLE 1-1. COMMONLY USED ACCESSORIES FOR MODEL 396R
PART DESCRIPTION
22698-00 Preamplifier plug-in for J-box, for Model 1003,
22698-02 Preamplifier plug-in for J-box, for Models 1181/1050
22698-03 Preamplifier plug-in for J-box, for Models 1054A/B, 2054, 2081
23550-00 Remote Junction box with extension board
9550167 O-ring, 2-214, EPDM for process connector
9210012 Buffer solution, 4.01 pH, 16 oz
9210013 Buffer solution, 6.86 pH, 16 oz
9210014 Buffer solution, 9.18 pH, 16 oz
22743-01 Pt100 preamp for Model 1181
22744-01 3K Preamp for Model 1181
23557-00 Preamplifier for junction box for Models 1055, 54e, 81, 3081, 4081, 5081, Xmt
MODEL 396R pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
For first time installations, Rosemount Analytical recommends using the following guide
1. Retractable Mounting
A. Choose one (required for all first time installations):
PN 23166-00, 1 in. x 1 in. NPT process connector, 316 SST
PN 23166-01, 1 in. x 1 in. NPT process connector, Titanium
B. Choose one:
PN 23240-00, 1-1/2 in. ball valve assembly, 316 SST
PN 23765-00, 1-1/4 in. ball valve assembly, 316 SST
2. Junction Boxes (Optional; Choose either Sensor Head or Remote)
A. Sensor Head Junction Boxes (used with options -60 or -61 sensor) - Choose one:
PN 23709-00; includes preamplifier for Models 54e, 81, 3081, 4081, 5081, Xmt, 1055
PN 23708-01; includes preamplifier for Models 1054 series, 2054, 2081
PN 23707-00; includes preamplifier for Model 1181
B. Remote Junction Boxes (used with standard 15 ft. cable length sensor) - Choose one:
PN 23555-00; includes preamplifier for Models 54e, 81, 3081, 4081, 5081, Xmt, 1055
PN 23309-03; includes preamplifier for Model 1181
PN 23309-04; includes preamplifier for Models 1054 series, 2054, 2081
3. BNC Adapter - Choose one:
PN 9120516, BNC Adapter for use with remote junction boxes PN’s 23309-03 and 23309-04
Order option -60 (standard with BNC connector) for PN 23707-00 or 23708-01 sensor head junction boxes
4. Extension Cables - Choose one:
PN 23646-01, 11 conductor, shielded, prepped
PN 9200273, 11 conductor, shielded, unprepped
TABLE 1-4. OTHER ACCESSORIES FOR MODEL 396RVP
PART DESCRIPTION
22698-00 Preamplifier plug-in for junction box, for Model 1003,
22698-02 Preamplifier plug-in for junction box, for Models 1181, 1050
22698-03 Preamplifier plug-in for junction box, for Models 1054B, 2081
22743-01 Pt100 preamplifier for Model 1181
22744-01 3K Preamplifier for Model 1181
23557-00 Preamplifier for junction box for Models 54e, 81, 3081, 4081, 5081, Xmt, 1055
33046-00 Ferrule, 1 in., split 316SS
9310096 Nut, swage, 1 in. 316SST
9210012 Buffer solution, 4.01 pH, 16 oz
9210013 Buffer solution, 6.86 pH, 16 oz
9210014 Buffer solution, 9.18 pH, 16oz
R508-80Z ORP solution, 460 mv ± 10 at 20°C
9550167 EPDM O-ring for Process Connector (PN 23166-00 or 23166-01)
12707-00 Jet Spray Cleaner
1. Variopol Cable (required for all first time installations)
Choose one: PN 23645-06, 15 ft cable with mating VP connector, prepped with BNC on analyzer end
PN 23645-07, 15 ft cable with mating VP connector, prepped without BNC on analyzer end*
2. Retractable Mounting
1A. Choose one (required for all first time installations, except as noted):
PN 23166-00 1 in. x 1 in. NPT process connector, 316 SST
PN 23166-01 1 in. x 1 in. NPT process connector, Titanium
Choose one (optional process connector o-rings):
PN 9550220, Kalrez
®
1
o-ring, 2-214
PN 9550099, Viton
®
1
o-ring, 2-214
1B. Choose one:
PN 23240-00 1-1/2 in. ball valve assembly, 316 SST
PN 23765-00 1-1/4 in. ball valve assembly, 316 SST (process connector not needed)
3. Remote Junction Boxes (Optional)
Choose one: PN 23555-00 includes preamplifier for Models 54e, 81, 3081, 4081, 1055, 5081, Xmt
PN 23309-03 and PN 22698-02 plug-in preamplifier for Model 1181Analyzer
PN 23309-04 and PN 22698-03 plug-in preamplifier for Models 1054 series and 2081 Analyzers
4. Extension cables
Choose one: PN 23646-01, 11 conductor, shielded, prepped
PN 9200273, 11 conductor, shielded, unprepped
FOR FIRST TIME 396RVP AND 398RVP INSTALLATIONS, ROSEMOUNT ANALYTICAL RECOMMENDS USING THE FOLLOWING GUIDE:
* Used for connections to Models 1181, 2081, 54e, 81, 3081, 4081, 5081, Xmt, 1055, and remote junction box PN 23555-00.
2
kalrez and Viton are registered trademarks of DuPont Performance Elastomers.
MODEL 396R pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
TABLE 1-3. COMMONLY USED ACCESSORIES FOR MODEL 396RVP
5
6
MODEL 396R pH/ORP SECTION 2.0
INSTALLATION
SECTION 2.0
INSTALLATION
2.1 UNPACKING AND INSPECTION. Inspect the outside
of the carton for any damage. If damage is detected,
contact the carrier immediately. Inspect the instrument
and hardware. Make sure all items in the packing list
are present and in good condition. Notify the factory if
any part is missing.
NOTE
If the sensor is to be stored, the protective
boot should be filled with either KCl electrolyte solution or pH 4.0 buffer solution
and replaced on sensor tip until ready to
use.
NOTE
Save the original packing cartons and
materials as most carriers require proof of
damage due to mishandling, etc. Also, if it
is necessary to return the instrument to the
factory, you must pack the instrument in the
same manner as it was received. Refer to
Section 8.0 for instructions.
WARNING
Glass electrode must be wetted at all times (in storage
and in line) to maximize sensor life.
2.2 MECHANICAL INSTALLATION. The Model 396R
Sensor may be installed through a weldalet or in a pipe
tee or “Y”, as shown in Figure 2-1, when used with a
ball valve. Insert the end of the sensor to a depth
sufficient to ensure that the glass bulb is continuously
wetted by the process fluid. The Model 396R can also
be inserted directly into the process without the use of
a ball valve for appli cations not requiring continuous
operation during sensor maintenance.
CAUTION
Allow sufficient room for safe retraction and insertion of
the sensor. Personnel should have room for stable footing while performing removal or insertion of the sensor.
The sensor must be mounted within 10-90 degrees of
the horizontal with the tip pointed downward, thus
keeping air bubbles off of the pH sensitive glass bulb.
Bubbles settled on the glass bulb disrupt the electrical
continuity between the pH sensitive glass and the silver/silver chloride measuring element.
If the retraction version is to be installed without a ball
valve follow the installation procedure for insertion
service (Section 2.2.2). Perform the following steps for
sensor installation through a ball valve:
2.2.1 INSTALLATION THROUGH BALL VALVE.
1. Carefully remove the liquid filled rubber boot which
protects the glass electrode and keeps the liquid
junction wet during shipping and storage. Discard
the liquid and boot. Make sure the lubricated
O-ring is in place in the groove inside the male
connector on the sensor body.
CAUTION
Buffer solution, in the protective boot, may cause skin
or eye irritation.
2. With the male connector on the sensor’s body,
insert the sensor into the ball valve until it gently
touches the closed valve. The molded electrode
guard will protect the glass bulb from breakage.
3. Thread the male connector body tightly into the
ball valve assembly. DO NOT tighten the hex nut
on the male connector body; doing so would not
allow the sensor to be inserted through the ball
valve.
4. Pull back hard on the sensor assembly, as if trying
to remove the sensor, to be certain that the sensor
cannot come free of the ball valve assembly. The
built-in retraction stop will butt against the shoulder of the male connector if properly installed.
CAUTION
The sensor must be captured by the valve assembly
and the male connector so that it cannot be blown
free by process pressure if mishandled during insertion or retraction.
5. After confirming that the sensor assembly is prop-
erly secured by the valve assembly, the valve may
be opened and the sensor positioned into the
process at the desired depth and orientation.
6. While holding the sensor in position, tighten the hex
nut of the male connector to firmly secure the sensor
in place. When the hex nut is tightened, the Teflon
ferrule inside the compression fitting clamps the sensor tube.
NOTE
A stainless steel ferrule is available if the
Teflon ferrule does not inadequately grip.
When using the metallic ferrule, care must be
taken to avoid over tightening and damaging
the sensor tube. If the male connector leaks
during insertion or retraction, replace the Oring in the male connector.
2.2.2 INSTALLATION WITHOUT A BALL VALVE. The
Model 396R Sensor may be installed through a weldalet
or pipe tee or “Y” when used with a process connector
(PN 23166-00 or 23166-01). The sensor should be
installed within 80° of vertical, with the electrode facing
down.
MODEL 396R pH/ORP SECTION 2.0
INSTALLATION
CAUTION
Over tightening the hex nut may damage the ferrule.
7
FIGURE 2-1. Exploded View of Ball Valve Kit PN 23240-00
used with process connector PN 23166-00 (or PN 23166-01)
8
MODEL 396R pH/ORP SECTION 2.0
INSTALLATION
JUNCTION BOX IS OPTIONAL
FIGURE 2-2. Typical Mounting Configurations for Model 396R
FIGURE 2-3. Typical Mounting Configurations for Model 396RVP
9
MODEL 396R pH/ORP SECTION 2.0
INSTALLATION
FIGURE 2-4. Dimensional Drawing — Model 396R with Optional Ball Valve PN 23765-00
Note: Add five (5) inches to dimension A if mounting a sensor head junction box onto the sensor.
INCH
MILLIMETER
10
MODEL 396R pH/ORP SECTION 2.0
INSTALLATION
FIGURE 2-5. Dimensional Drawing — Model 396R with Optional Ball Valve PN 23240-00
Note: Add five (5) inches to dimension A if mounting a sensor head junction box onto the sensor.
DWG. NO. REV.
40396R05 D
WHEN INCH AND METRIC DIMS
ARE GIVEN
MILLIMETER
INCH
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