Honeywell 4973 User Manual

04973 Series Conductivity Cells

Installation and Maintenance Manual

70-82-25-17

10/07

Honeywell Field Solutions

Copyright, Notices, and Trademarks

Revision– 10/07

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer's sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use.

While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application.

Honeywell Field Solutions

512 Virginia Drive

Fort Washington, PA 19034

Brands or product names are trademarks of their respective owners

ii Installation and Maintenance Manual 10/07

About This Document

Abstract

The purpose of this manual is to support the installation and maintenance of the 4973 Series Conductivity Cells.

Revision Notes

The following list provides notes concerning all revisions of this document.

Rev. ID Date Notes

0 10/96 This document is the initial release of the Honeywell version of the 4973

Series Conductivity Cell Installation and Maintenance Manual. This publication was originally released under the L&N system as 277067 Rev. N1.

1 6/99 Edits were made to add information for the 9782C and to correct some

erroneous information.

2 6/03 Edits were made to add information for the DL43XX Cells for DirectLine

3 6/04 Edit text and update the Installation drawings to remove 7082 information. 4 10/05 Edit text and add electrical connection drawings for UDA2182 analyzer 5 10/07 Edit text, add CRN approval, add quick disconnect info.

References

Honeywell Documents

The following list identifies all Honeywell documents that may be sources of reference for th e material discussed in this publication.

APT2000CC Transmitter User Manual 70-82-25-95 APT4000CC Analyzer User Manual 70-82-25-104 UDA2182 Analyzer User Manual 70-82-25-119

Modules

Document Title ID #

10/07 Installation and Maintenance Manual iii

Contacts

World Wide Web

http://hpsweb.honeywell.com

Telephone

Contact us by telephone at the numbers listed below.

United States and Canada Honeywell 1-800-423-9883 Tech. Support

Organization Phone Number

iv Installation and Maintenance Manual 10/07

Figure 1-1 4973 Type Conductivity Cells, for Flow and Insertion-type Applications. _______________ 2 Figure 1-2 Recommended Locations for Mounting a Conductivity Cell __________________________ 3 Figure 1-3 Two Piping Arrangements for the Cell___________________________________________ 3 Figure 3-1 Dimension Drawing for 055919 Flow Chamber ___________________________________ 7 Figure 3-2 Dimension Drawing for 31079198 Flow Chamber__________________________________ 8 Figure 3-3 Outline and Dimensions for Conductivity Cell with Universal Head____________________ 8 Figure 3-4 Outline and Dimensions for Conductivity Cell with Integral Cable_____________________ 9 Figure 4-1 Installation Diagram, 4973 Cells, with junction box head connected to UDA2182 Analyzer 10 Figure 4-2 Installation Diagram, 4973 Cells, with Integral Cable Leads Directly Connected to UDA2182

Analyzer or Connected to Junction Box ______________________________________________

Figure 4-3 Model 4973 Series to APT Series Analyzer/Transmitter ____________________________ 12 Figure 4-4 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to UDA2182

Analyzer_______________________________________________________________________

Figure 4-5 Installation diagram for 4973 cells with Quick Disconnect Cable connected to junction box 13 Figure 4-6 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to APT4000 ____ 14 Figure 4-7 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to APT2000 ____ 14

11

13

vi Installation and Maintenance Manual 10/07

1.1 Overview

The 4973 Type cells, Figure 1-1, have a rugged configuration for reliable, continuous measurements of electrolytic conductivity in industrial water processes at temperatures up to 140°C at 250 psig. They are applicable to such measurements as the effluent of distillation equipment; anion, cationic an d mixed bed ion exchangers; monitoring and controlling of washing electronic components; plating rinse tank control; boiler water condensate; boiler hot well measurements and cooling tower blowdown, and many others.

Made of polyethersulfone (PES) construction for high-corrosion resistance, the cells are supplied with 0.01 and 0.1 cell constants having titanium electrodes, and 1.0 an d 10.0 cell constants with high-density, graphite electrodes.

The 4973 Cells used with UDA2182 Series or APT2000/4000 Series are equipped with the choice of:

• integral standard 20 or 50 foot lead

• quick disconnect cable option

• junction box type (universal) head with terminal connections for longer lead lengths.

Introduction

1. Introduction

For in-line applications, the 3/4” NPT male thread permits permanent installation in a pipe or tank ; th e cell may also be used as a laboratory dip-type cell for batch sampling.

For flow applications, the cell can be installed directly into a process stream as shown in using a Flow Chamber or a 3/4” pipe tee as shown in both the temperature compensator and cell in the main stream flow so that the cell will respond more quickly and accurately to process changes of both solution concentration and temperature.

A 316SS (P/N 31079198) and a PES (P/N 055919) Flow Chamber is available from Honeywell.

1.2 Description

All conductivity cells of the 4973 Type are suitable for use in both flow and insertion - type installations. They are one-piece molded units that cannot come apart and therefore have no replacement parts. Each has a 3/4” NPT thread.

The physical appearance of the cells is shown in similar in construction with differences as noted below.

0.01 and 0.1 Cell Constants

The 0.01 cell differs from the others only by its outer electrode length of 2-3/4”. The temperature compensation sensor is located inside the inner electrode. The holes in the outer electrode provide passage for the solution being measured. The 0.1 cell is similar to the 0.01 type except that its outer electrode length is 2”. The temperature compensation sensor is located inside the inner electrode.

1 and 10 Cell Constants

Figure 1-2 by

Figure 1-3. These arrangements are designed to keep

Figure 1-1. The 0.01, 0.1, 1 and 10 cell constants are

The 1 and 10 cell constant types are similar but differ in the width of flow channel (that serves to conduct the solution being measured past the electrodes of the cell) as well as size and spacing of the electrodes. The electrodes are graphite, 1/4” D for the 1 cell constant and 1/8” D for the 10 cell constant. The temperature compensating sensor is integral with the cell body.

10/07 Installation and Maintenance Manual 1

Introduction

Insertion

Depth

(S ee

S pecific ations )

Flow

Holes

Titanium

Electrodes

Potted

Connector

Housing *

Housing

11/8" Hex

Across Flats

3/4 NPT

Molding

* This is the integral

cable option. Quick disconnect option also available.

Flow

Channel

Graphite

Electrodes

Teflon

Sheath

FLOW FLOW

Cell Constant

Conductivity

Conductivity Cell

Cell

0.0 1

4973 Series

Cells Only

Figure 1-1 4973 Type Conductivity Cells, for Flow and Insertion-type Applications.

ATTENTION

Do not remove the Teflon sheath on 1.0 and 10 constant cells.

0. 1 1.0 1 0

4973 Series

Cells Only

Universal Head

Conduit

¾”

Cells Only

2 Installation and Maintenance Manual 10/07

Process

Introduction

Preferred Cell Lo cat i on s

Cool er

Pump

a/n 23340

Figure 1-2 Recommended Locations for Mounting a Conductivity Cell

*Maximum allowable operating t emperat ur e for piping arrangements depends on the type of pipe tee chosen.

Flow

(a) Cell Mounted in 3/4" NPT Pipe Tee* (Customer Supplied)

Flow

(b) Cell Mounted in PES Flow Chamber

a/n23341

Figure 1-3 Two Piping Arrangements for the Cell

10/07 Installation and Maintenance Manual 3

Specifications

2. Specifications

2.1 Specifications for 04973 Series

Parameter Description

Cell Constant 04973 Series: 0.01, 0.1, 1.0 and 10 as specified Electrode Material 0.01 and 0.1 constant, titanium

1.0 and 10 constant, high density graphite with

Teflon sheath

Maximum Pressure Limit Maximum Continuous Temperature Limit

Materials of Construction Cell Body: PES (polyethersulfone)

Cable Options Leadwire: PVC insulated 18 gage cable

Approvals

Insertion Insertion Depth

1724 kPa (250 psig) at rated temperature 140°C (284°F) at rated pressure

For PVC wire:

105°C (221°F)

Electrodes: see ‘Electrode Material’

20 and 50 feet lengths available

Quick Disconnect Option Universal Head (Aluminum)

Manufactured to comply with ASME boiler and pressure vessel code Section III, Div.1, UG-101

CRN #0F11607.5C 3/4” NPT male, Schedule 40 and 80 pipes 3-1/2” (89 mm) for 1, 10 and 0.01 cell constants

from solution end of 3/4" MNPT 2-1/2” (64mm) for 0.1 cell constant

2.2 Specifications for 055919 Flow Chamber

Parameter Description Maximum Flow Maximum Pressure Maximum Temperature Dimensions Materials of Construction

4 Installation and Maintenance Manual 10/07

2 gpm @ 40psig and atmospheric discharge 200 psig @ 25°C 140°C (284°F) at atmospheric pressure See

Figure 3-1

Polyethersulfone (PES)

Installation

3. Installation

3.1 General Requirements

Observe the following before installing a conductivity cell. Specific requirements for particular types of installation are given in Sections

• Do not remove the Teflon sheath on 1or 10 constant cells, as this will change the cell constant value.

• Do not use the cell in solutions which can affect the fittings or the cell materials. If in doubt, contact

Honeywell.

• Avoid all chlorinated hydrocarbons.

Titanium and PES (0.01 and 0.1 cell constants) and Graphite, Teflon and PES (1.0 and 10 cell constants) are the only cell materials in contact with measured solutions. These materials are inert to corrosive chemicals such as mineral acids, oxidizing agents and caustic solutions.

• Avoid trapped air; see that air is not trapped in the cell flow channels.

• Do not use the cell in solutions having temperatures or pressures greater than the maximum limits

stated in the Specifications.

3.3 and 3.4.

• Avoid locations where the operator must take an awkward position to install or remove the cell.

• When tightening, do not exceed the torque limits provided in Section

the cell or severely stress it causing cracks to develop, leading to eventual malfunction.

3.5. Over-tightening can break

3.2 The Differences between the Quick Disconnect and Integral Cable Option

The cable options of quick disconnect and integral cable do not affect the performance of the cell. These options only relate to how the cell is connected to the instrument.

ATTENTION

• The electrical connections are different f or these options. Please refer to Section 4 for instructions.

• The wire colors for the integral cable and quick disconnect option are not the same.

• Integral cable means the cable is potted into the cell. The cable and cell are one entity and cannot be

separated.

• The quick disconnect option means the cell is connected to the cell by a receptacle on the top of the

cell. The cell and the cable are separate entities. When the time comes to replace the cell, the cable does not have to be replaced. The cable can simply be mated with another cell that has the quick disconnect option. This option can not be used in immersion applications.

ATTENTION

The quick disconnect cable can be purchased from Honeywell.

10/07 Installation and Maintenance Manual 5

Installation

3.3 In-Line Type Mounting

In addition to the General Requirements outlined above, note the following with regard to insertion-type mounting:

• Make certain the liquid head is above the cell location during measurement. A vertical insertion (from

above) or a horizontal insertion can be used.

• Allow at least one-half inch clearance beyond the end of the cell and 1/8 to 3/16 inch radius clearance

to permit circulation of the solution.

• It is usually best to have the solution flow up into the end of the cell since it is less likely to result in

clogging by solids settling in the cell channels.

• To be sure that a representative sample is being measured at all times, the solution must continuously

move through the cell channels. In a rapidly moving solution, the assembly may be mounted so that the existing circulation forces the solution through the channels. When measurements are made in quiescent solutions, artificial means must be provided to force the solution through the cell. In some cases, this may be accomplished by moving the cell up and down.

Installation

Tighten the cell into a 3/4” NPT threaded opening (do not exceed a tightening torque greater than that indicated in Section

3.5) using a Teflon thread compound (preferably Teflon tape).

3.4 Flow-Type Mounting

In addition to the General Requirements outlined in Section 3.1, note the following with regard to flowtype mounting:

• When mounting the cell in a pipe tee or flow chamber such as shown in Figure 1-3, have the solution

enter the tee from below and exit to the side or from side and exit top. Be sure the electrodes are always as far as possible below the horizontal pipe run so that they are always covered to insure flooding of the cell under all conditions; otherwise, the conductivity reading may indicate a value that is lower than expected.

• In general, the cell should be mounted so that the sample will flow through the channel toward the

mounting end of the cell, exiting through the other channel hole or through the outer electrode holes.

Figure 1-1.

See

• Locate the cell on the pressure side, not the vacuum side, of pumps. See

• Avoid a horizontal cell mounting having the flow channel, see

the pipe line, especially for the 1 and 10 constant cells. If necessary, refer to Section

• The 3/4” tee arrangement,

Installation

1. Tighten the cell into a 3/4” pipe tee (do not exceed a tightening torque greater than that indicated in

2. If the flow-cell housing is used, assemble the cell and housing and install it in the process flow line or

obtain a representative sample. The tee is not supplied.

Section

in a bypass line as indicated in

3.5).

Figure 1-3, assures that the cell is immersed well into the flow stream to

Figure 1-2.

Figure 1-1, opposite to the flow exit of

5.5.

Figure 1-2.

3. To avoid cracking the 055919 flow chamber, use Teflon tape on cell threads and tighten cell only

enough to prevent leakage.

6 Installation and Maintenance Manual 10/07

Installation

3.5 Torque Recommendations

For inserting a cell in metal fittings or bushings - 40 ft-lb maximum. For inserting a cell in plastic fittings or bushings - 10 ft-lb maximum. Always use pipe sealant (preferably Teflon tape).

3.6 Dimension Drawings

Flow Out

11/8"

(38m m )

Hexagon

11/2"

(38mm )

11/2"

(38mm )

Flow Out

CELL

3/4" NPT (Female)

11/2"

(38mm )

Octagon

83/4"

(222mm )

Flow Chamber

3/4" NPT

(Ma le)

IN

Flow In

14 1/2" max

(368mm)

3/4" Fitting

Allow 4 1/8" (105mm) for re

Notes:

1. Mount cell and flow chamber horizontally as shown above with flow exit up to eliminate possible air gap around cell body.

2. If cell and flow chamber must be mounted vertically, attach a short length of tubing to flow exit as shown below and form a trap to ensure filling of flow chamber, especially at low flow.

CELL IN

moval of cellmoval of cell

2" min. (51mm )

a/n23342

Figure 3-1 Dimension Drawing for 055919 Flow Chamber

10/07 Installation and Maintenance Manual 7

Installation

4.25

.875

22.22

3/4 NPT

3.75

95.25

4.25

107.9

4.0

101.6

4.5

114.3

8-32 UNC – 2B 250 DEEP

1.0

25.4

25.4 .50

.50

12.7

1/8 NPT

Figure 3-2 Dimension Drawing for 31079198 Flow Chamber

1.5

38.1

0.593" Dia.

0.593" Dia. (15mm)

(15mm)

Table I

0.01

0.1

1.0

1.0 10

10

"X"

See Table

Dim "X"

Inch

3.3

2.6

3.5

3/4" NPT

3/43/4" NPT

3/4" NPT

mm

84

84 66

66

66 89

89

89 89

89

1.13" Hex

1.13" Hex (29mm)

(29mm)

female NPT for user's

¾”fema le NPT for user's

female NPT for user's

¾”fema le NPT for user's

flexi b leelectrical con d u it

conn e c tio n. Fo rinsertionor

connec tion

conn e c tio n. Fo rinsertionor

connec tion

conn e c tio n. Fo rinsertionor

removal of cell, disconnect

conduit connections.

. Forinsertionor

.

. Forinsertionor

5.875"

(149.2mm)

3/4”

3/4”3/4”

(76mm)

Four Point Terminal

Four Point Terminal Board for lead wire

Board for lead wire

Board for lead wire connections. Each #6-32

connections. Each #6-32

connections. Each #6-32 screw terminal

screw terminal will

screw terminal

screw terminal will

screw terminal

screw terminal will

screw terminal

screw terminal will

screw terminal

screw terminal wi accomodate one

accomodate one

accomodate one #12 or smaller AWG wire

#12 or smaller AWG wire

NOTE: For existing users with conduit, a ¾” x ½” adapter bushing will be required to use existing conduit.

Figure 3-3 Outline and Dimensions for Conductivity Cell with Universal Head

8 Installation and Maintenance Manual 10/07

Installation

±0.031

“X”

"Z"

“X”

±0.787

See Table

3/4" NPT

"Y"

1.13" Hex

1.13" Hex (29mm)

(29mm)

Suffix A

0.01

00.1

0.1

1.0

1.0 10

10

2.771" ±.0352.771" ±.035

2.771" ±.0352.771" ±.0352.771" ±.0352.771" ±.035

(154mm±.889)

1.1"Dia.

(27.9m m)

Dim"X" Dim"Y" Dim"Z"

mm

Inch

3.3

2.6

3.5

mm

84

84 66

66

66 89

89

89 89

89

Inch

.703

.703 .703

.703

.703 .593

.593

.593 .593

.593

mm

17.85

15.06

Inch

.542

.542 .542

.542

.542 .625

.625

.625 .564

.564

Cable is approx. 0.250" (6.4mm)

Internet cable option is

O.D. withO.D. with

approx. 0.250” (6,4mm) O.D.

or 6 (DL4000 DirectLine Cells)

or 6 (DL4000 DirectLine Cells)or 6 (DL4000 DirectLine Cells)

with 4 4973 Series Cells

mm

13.76

15.87

14.32

4 (4973 Series Cells)

conductorsconductors

conductorsconductorsconductorsconductors

Figure 3-4 Outline and Dimensions for Conductivity Cell with Integral Cable

10/07 Installation and Maintenance Manual 9

Electrical Connections

4. Electrical Connections

4.1 Overview

The terminal board connections for the various Honeywell measuring instruments are given in the appropriate Figures in this section.

To avoid the possibility of AC pickup in the cell leads, separate them from all AC line-voltage wiring or run them in a separate grounded conduit.

ATTENTION

Do not use shielded cable except where shown in the following figures.

4.2 Instrument Wiring for 4973 Cells with Integral Cable

4.2.1 Model 4973 Series with Integral Cable to UDA2182 Analyzer

NOTES

1. FOR PURE WATER SAMPLES IN NON-CONDUCTIVE (PLASTIC, GLASS, ETC.) PIPING, GROUND THE BLACK CELL ELECTRODE LEAD NEAR THE CELL. ALTERNATIVELY, CONNECT TO THE UDA GROUND SCREW AS SHOWN DOTTED. DO NOT GROUND 10, 25, OR 50 CONSTANT CELLS.

2. FOR CELL LEADS BLACK AND WHITE, USE 16 TO 22 AWG CABLE, SHIELDED TWISTED PAIR, WITH 30 pF MAX. CAPACITANCE BETWEEN CONDUCTORS. CONNECT SHIELD TOTERMINAL “10”. FOR MODEL 4973 INSTALLATIONS WITH HONEYWELL 31079198 SS FLOW CHAMBER, USE 22 AWG MINIMUM COAXIAL CABLE TYPE RG59U (BELDEN 9259 OR EQUIV.). CONNECT COAX SHIELD TO TERMINALS “A” AND “10”. CONNECT COAX CONDUCTOR TO TERMINALS “C” AND “7”.

3. FOR COMPENSATOR LEADS B AND D, USE 16 TO 22 AWG, TWO CONDUCTOR CABLE.

4. CELL TO ANALYZER CABLES ARE CONSIDERED LOW LEVEL. RUN SEPARATE FROM HIGH LEVEL WIRING.

Figure 4-1 Installation Diagram, 4973 Cells, with junction box head connected to UDA2182

Analyzer

DRAWING 50012874

10 Installation and Maintenance Manual 10/07

Electrical Connections

X

.

50

YELLOW

COA

20 OR 50 FT. CABLE LENGTH

Direct Cell to Analyzer Installation

50

Cell to Analyzer through Junction Box

NOTES

5. FOR PURE WATER SAMPLES IN NON-CONDUCTIVE (PLASTIC, GLASS, ETC.) PIPING, GROUND THE BLACK CELL ELECTRODE LEAD NEAR THE CELL. ALTERNATIVELY, CONNECT TO THE UDA GROUND SCREW AS SHOWN DOTTED. DO NOT GROUND 10, 25, OR 50 CONSTANT CELLS.

6. FOR CELL LEADS BLACK AND WHITE, USE 16 TO 22 AWG CABLE, SHIELDED TWISTED PAIR, WITH 30 pF MAX. CAPACITANCE BETWEEN CONDUCTORS. CONNECT SHIELD TOTERMINAL “10”. FOR MODEL 4973 INSTALLATIONS WITH HONEYWELL 31079198 SS FLOW CHAMBER, USE 22 AWG MINIMUM COAXIAL CABLE TYPE RG59U (BELDEN 9259 OR EQUIV.). CONNECT COAX SHIELD FROM “BLACK” TO TERMINAL “10”. CONNECT COAX CONDUCTOR FROM “WHITE” TO TERMINAL “7”.

7. FOR COMPENSATOR LEADS RED AND GREEN, USE 16 TO 22 AWG, TWO CONDUCTOR CABLE.

8. CELL TO ANALYZER CABLES ARE CONSIDERED LOW LEVEL. RUN SEPARATE FROM HIGH LEVEL WIRING.

Figure 4-2 Installation Diagram, 4973 Cells, with Integral Cable Leads Directly Connected

to UDA2182 Analyzer or Connected to Junction Box

DRAWING 50012875

10/07 Installation and Maintenance Manual 11

Electrical Connections

4.2.2 Model 4973 Series with Integral Cable to APT Series Analyzer/Transmitter

04973 series cells with integral cable leads connected to an APT4000

04973 series cells with integral cable leads connected to an APT2000

Figure 4-3 Model 4973 Series to APT Series Analyzer/Transmitter

12 Installation and Maintenance Manual 10/07

Electrical Connections

X

.

4.3 Instrument Wiring for 4973 Cells with Quick Disconnect Cable

4.3.1 Wiring Model 4973 with Quick Disconnect Cable to UDA2182

Wire Color

Yellow

Coax

Jumper

Green

Red

Brown

Blue

Wire to chassis

Signal Name

10

Cell Low

9 8

7

Cell High

6

RTH 3rd Wire

5

RTH Low

4

RTH High

3

2

1

Earth Ground

ground screw

Figure 4-4 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to

UDA2182 Analyzer

4.3.2 Wiring Model 4973 with Quick Disconnect Cable to Junction Box

50

DRAWING 50012875

Figure 4-5 Installation diagram for 4973 cells with Quick Disconnect Cable connected to

20 OR 50 FT. CABLE LENGTH

junction box

YELLOW

COA

10/07 Installation and Maintenance Manual 13

Electrical Connections

4.3.3 Wiring Model 4973 with Quick Disconnect Cable to APT

NOTE: IGNORE BLUE AND BROWN WIRES.

ELLOW

COAX

Figure 4-6 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to

NOTE: IGNORE BLUE AND BLACK WIRES.

ELLOW

COAX

APT4000

Figure 4-7 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to

APT2000

14 Installation and Maintenance Manual 10/07

Maintenance

5. Maintenance

5.1 Overview

The only maintenance that may be required is occasional cleaning. When cleaning, avoid scratching electrode surfaces. Do not use a brush or pipe cleaner.

5.2 To Clean the Cell

The cell will require cleaning if sludge, slime, etc., accumulate in the flow channels. Since the materials of construction are chemically inert, chemical agents may be used and are recommended for cleaning the cells. The particular cleaning agent used must be selected according to the type of contamination to which the cell is exposed.

The cell housing is made of a polyethersulfone, PES, and must not be cleaned with acetone, chloroform, toluene, benzene, or other chlorinated hydrocarbons.

In general, a “quick” rinse in a 10% inorganic acid is effective and often adequate. Another method is to use a strong stream of water to dislodge particles; then reverse flush. After cleaning, rinse the cell thoroughly in tap water and then distilled water, if available. Take care not to scratch electrode surfaces.

5.3 Check Conductivity System

To check the conductivity system comprising the conductivity cell, leadwires, and measuring instrument, make a measurement in a reference solution of known conductivity. Alternatively, use a second cell having the same constant and temperature compensation and compare the two readings. Be sure the cells are not touching the bottom or sides of the container for this test.

If Table II of the conductivity cell model number is 333, the normal resistance of the temperature sensor as measured across the red (B) and green (D) leads is 8550 ohms at 25 C.

To check the electrode insulation, connect an ohmmeter across the black (A) and white (C) leads. With a dry and clean cell, the resistance should be greater than 50 megaohms.

5.4 Troubleshooting

A series of below normal conductivity readings could indicate that the cell is not filled with solution resulting in a lack of response.

If the plastic surface of the cell has a grayish dull appearance instead of its normal glassy appearance, the cell has been exposed to temperature above its specified maximum. Check the solution temperature and replace the conductivity cell.

10/07 Installation and Maintenance Manual 15

Maintenance

5.5 Air Entrapped in Cell Flow Channel

If measurement errors appear for horizontal mountings of a 1 or 10 constant cell, it may be that air is entrapped in the cell flow channel. Take one of the following actions to eliminate this problem:

• Increase flow to at least 1 gpm.

• Rotate the cell mounting so that its flow channel faces the same direction as the pipeline flow exit.

• Install the cell and/or flow chamber vertically.

16 Installation and Maintenance Manual 10/07

Accessories and Spare Parts

6. Accessories and Spare Parts

Description Part Number

Flow Cell Housing (PES) 055919 Flow Cell Housing (316 SS) 31079198 Junction Box 31316260

Teflon Shield

White for 1 const. cell 31021599 Clear for 10 const. cell (see note below) 31018760

Extension Cables for Sensors with Quick Disconnect Option

2 m (6.56 ft.) 50024092-001 3 m (9.84 ft.) 50024092-002 6 m (19.69 ft.) 50024092-003 15 m (49.21 ft.) 50024092-004 Extension Cable must be purchased from Honeywell

Cell Extension Leadwire

For ATC value of 333:

Standard Range 9782 or 7082, also APT 2000

To 500 ft.: 3-conductor, 18 gage cable (Belden 9493) and Coax cable (Belden 9259)

To 1000 ft.: Coax cable (Belden 9259)

Wide Range 9782 and 7082

To 500 ft.: 4-conductor, 18 gage cable only To 1000 ft.: 4-conductor (3 used), 16 gage only

For all cells with an ATC other than 333:

3-conductor, 18 gage cable (Belden 9493) only

834059 835024

835024

31834052

834055

834059

Note: For 10 constant cell, heat shrink the clear shield onto the cell using a 300°F max. temp. (Cal Factor may change)

10/07 Installation and Maintenance Manual 17

Accessories and Spare Parts

18 Installation and Maintenance Manual 10/07

Honeywell Field Solutions

512 Virginia Drive Fort Washington, PA 19034

70-82-25-17 10 07 Printed in USA http://hpsweb.honeywell.com

Honeywell 4973 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Copyright, Notices, and Trademarks

Warranty/Remedy

About This Document

Abstract

Revision Notes

References

Contacts

Contents

1.1 Overview

1. Introduction

1.2 Description

2. Specifications

2.1 Specifications for 04973 Series

2.2 Specifications for 055919 Flow Chamber

3. Installation

3.1 General Requirements

3.2 The Differences between the Quick Disconnect and Integral Cable Option

3.3 In-Line Type Mounting

3.4 Flow-Type Mounting

3.5 Torque Recommendations

3.6 Dimension Drawings

4. Electrical Connections

4.1 Overview

4.2 Instrument Wiring for 4973 Cells with Integral Cable

4.2.1 Model 4973 Series with Integral Cable to UDA2182 Analyzer

4.2.2 Model 4973 Series with Integral Cable to APT Series Analyzer/Transmitter

4.3 Instrument Wiring for 4973 Cells with Quick Disconnect Cable

4.3.1 Wiring Model 4973 with Quick Disconnect Cable to UDA2182

4.3.2 Wiring Model 4973 with Quick Disconnect Cable to Junction Box

4.3.3 Wiring Model 4973 with Quick Disconnect Cable to APT

5. Maintenance

5.1 Overview

5.2 To Clean the Cell

5.3 Check Conductivity System

5.4 Troubleshooting

5.5 Air Entrapped in Cell Flow Channel

6. Accessories and Spare Parts