Emerson 396RVP, 396R User Manual

Instruction Manual

PN 51-396R/rev.J

February 2011

Model 396R and 396RVP

Retractable pH/ORP Sensors

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 [phone] 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.

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 combination 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 instruction manual for details.

Proper installation, operation and servicing of this sensor in a Hazardous Area Installation is entirely the responsibility of the user.

WARNING

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.

CAUTION

SENSOR/PROCESS APPLICATION COMPATIBILITY

The wetted sensor materials may not be compatible with process composition and operating conditions. Application compatibility is entirely the responsibility of the user.

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.

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

A1/96-1/01 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.

B7/02 Revised multiple drawings.

C8/02 Added drawing #40105549, rev. D.

D4/03 Revised drawing #40396R21/22 on page 18.

E8/03 Added Silcore information.

F9/04 Updated ordering info and added/revised wiring drawings.

G1/05 Delete obsolete options.

H1/07 Miscellaneous revisions.

I11/10 Removed mention of patents and updated dnv logo.

J2/11 Added ATEX directive and updated caution boxes per ANSI standard.

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	Ro and R1 Values 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

MODEL 396R pH/ORP	SECTION 1.0
	DESCRIPTION AND SPECIFICATIONS

SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

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 resistance2,3.

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 SILCORE1 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.

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.

1

MODEL 396R pH/ORP	SECTION 1.0
	DESCRIPTION AND SPECIFICATIONS

1.2PERFORMANCE AND PHYSICAL SPECIFICATIONS

MODEL 396R

Measured Range:

ORP: -1500 to 1500mV pH: 0 to 14

Percent Linearity Over pH Range:

	Hemi Bulb	Flat Bulb
0-2 pH	94%	93%
2-12 pH	99%	98%
12-13 pH	97%	95%
13-14 pH	92%	—

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 connector 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)

2

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 solution 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.

MODEL

396R TUpH RETRACTABLE pH SENSOR

CODE	MEASURING ELECTRODE TYPE (Required Selection)
10	GPLR hemi glass, General Purpose Low Resistivity

12ORP

13GPLR 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

609.5 in. Cable with BNC (for use with Model 1181, 1054 series, 2054, 2081 Sensor Head J-Boxes)

619.5 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

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.

MODEL

396RVP TUpH RETRACTABLE pH/ORP SENSOR

CODE	MEASURING ELECTRODE TYPE (Required Selection)
10	Hemi bulb, General Purpose Low Resistivity

12ORP

13Flat, 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)
396RVP-	10 - 21 - 54	EXAMPLE

3

MODEL 396R pH/ORP	SECTION 1.0
	DESCRIPTION AND SPECIFICATIONS

TABLE 1-1. COMMONLY USED ACCESSORIES FOR MODEL 396R

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 1-2. OTHER 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

4

MODEL 396R pH/ORP	SECTION 1.0
	DESCRIPTION AND SPECIFICATIONS

TABLE 1-3. COMMONLY USED ACCESSORIES FOR MODEL 396RVP

FOR FIRST TIME 396RVP AND 398RVP INSTALLATIONS, ROSEMOUNT ANALYTICAL RECOMMENDS USING THE FOLLOWING GUIDE:

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

* 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.

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

5

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 applications 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 properly secured by the valve assembly, the valve may be opened and the sensor positioned into the process at the desired depth and orientation.

6

MODEL 396R pH/ORP	SECTION 2.0
	INSTALLATION

6.While holding the sensor in position, tighten the hex 2.2.2 INSTALLATION WITHOUT A BALL VALVE. The

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.

CAUTION

Over tightening the hex nut may damage the ferrule.

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 O- ring in the male connector.

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.

FIGURE 2-1. Exploded View of Ball Valve Kit PN 23240-00 used with process connector PN 23166-00 (or PN 23166-01)

7

MODEL 396R pH/ORP	SECTION 2.0
	INSTALLATION

OPTIONAL

FIGURE 2-2. Typical Mounting Configurations for Model 396R

FIGURE 2-3. Typical Mounting Configurations for Model 396RVP

8

MODEL 396R pH/ORP	SECTION 2.0
	INSTALLATION

INCH

MILLIMETER

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.

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MODEL 396R pH/ORP	SECTION 2.0
	INSTALLATION

WHEN

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