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
5.5Air Entrapped in Cell Flow Channel............................................................................................16
6. ACCESSORIES AND SPARE PARTS ............................................................... 17
10/07 Installation and Maintenance Manual v
Figures
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
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
Insertion
Depth
Depth
(S ee
(S ee
S pecific ations )
S pecific ations )
Flow
Flow
Flow
Holes
Holes
Holes
Titanium
Titanium
Electrodes
Electrodes
Potted
Potted
Potted
Potted
Connector
Connector
Connector
Connector
Housing *
Housing
Housing
Housing
11/8" Hex
11/8" Hex
11/8" Hex
Across Flats
Across Flats
Across Flats
3/4 NPT
3/4 NPT
3/4 NPT
Molding
Molding
Molding
* This is the integral
cable option. Quick
disconnect option
also available.
Flow
Flow
Flow
Channel
Channel
Channel
Graphite
Graphite
Graphite
Electrodes
Electrodes
Electrodes
Teflon
Teflon
Teflon
Sheath
Sheath
Sheath
FLOWFLOW
FLOWFLOW
FLOWFLOW
Cell Constant
Cell Constant
Conductivity
Conductivity
Cell
Cell
0.0 1
0.0 1
4973 Series
4973 Series
Cells Only
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. 11.01 0
0. 11.01 0
4973 Series
4973 Series
Cells Only
Universal Head
Universal Head
Conduit
Conduit
¾”
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)
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"
11/8"
(38m m )
(38m m )
Hexagon
Hexagon
11/2"
11/2"
(38mm )
(38mm )
11/2"
11/2"
(38mm )
(38mm )
Flow Out
CELL
CELL
3/4" NPT (Female)
3/4" NPT (Female)
11/2"
11/2"
(38mm )
(38mm )
Octagon
Octagon
83/4"
83/4"
(222mm )
(222mm )
Flow Chamber
Flow Chamber
3/4" NPT
3/4" NPT
(Ma le)
(Ma le)
IN
IN
Flow In
Flow In
14 1/2" max
14 1/2" max
(368mm)
(368mm)
3/4" Fitting
3/4" Fitting
Allow 4 1/8" (105mm) for re
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.
CELLIN
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
.875
22.22
22.22
3/4 NPT
3/4 NPT
3.75
3.75
95.25
95.25
4.25
107.9
107.9
4.0
4.0
101.6
101.6
4.5
4.5
114.3
114.3
8-32 UNC – 2B 250 DEEP
8-32 UNC – 2B 250 DEEP
1.0
1.0
25.4
25.4
.50
.50
12.7
12.7
1/8 NPT
1/8 NPT
Figure 3-2 Dimension Drawing for 31079198 Flow Chamber
1.5
1.5
38.1
38.1
0.593" Dia.
0.593" Dia.
0.593" Dia.
0.593" Dia.
0.593" Dia.
(15mm)
(15mm)
(15mm)
(15mm)
(15mm)
Table I
Table I
Table I
Table I
Table I
Table I
0.01
0.01
0.01
0.01
0.01
0.01
0.1
0.1
0.1
0.1
0.1
0.1
1.0
1.0
1.0
1.0
1.0
1.0
10
10
10
10
10
10
"X"
"X"
"X"
"X"
"X"
"X"
"X"
"X"
"X"
"X"
"X"
See Table
See Table
See Table
See Table
See Table
See Table
See Table
See Table
See Table
See Table
See Table
Dim "X"
Dim "X"
Dim "X"
Dim "X"
Dim "X"
Dim "X"
Inch
Inch
Inch
Inch
Inch
Inch
3.3
3.3
3.3
3.3
3.3
3.3
2.6
2.6
2.6
2.6
2.6
2.6
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3/4" NPT
3/4" NPT
3/43/4" NPT
3/4" NPT
3/4" NPT
mm
mm
mm
mm
mm
mm
84
84
84
84
84
84
66
66
66
66
66
66
89
89
89
89
89
89
89
89
89
89
89
89
1.13" Hex
1.13" Hex
1.13" Hex
1.13" Hex
1.13" Hex
(29mm)
(29mm)
(29mm)
(29mm)
(29mm)
female NPT for user's
female NPT for user's
¾”fema le NPT for user's
female NPT for user's
female NPT for user's
¾”fema le NPT for user's
flexi b leelectrical con d u it
flexi b leelectrical con d u it
flexi b leelectrical con d u it
flexi b leelectrical con d u it
flexi b leelectrical con d u it
flexi b leelectrical con d u it
conn e c tio n. Fo rinsertionor
connec tion
conn e c tio n. Fo rinsertionor
conn e c tio n. Fo rinsertionor
connec tion
conn e c tio n. Fo rinsertionor
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
removal of cell, disconnect
conduit connections.
conduit connections.
conduit connections.
conduit connections.
conduit connections.
conduit connections.
conduit connections.
conduit connections.
conduit connections.
. Forinsertionor
. Forinsertionor
. Forinsertionor
. Forinsertionor
.
. Forinsertionor
5.875"
5.875"
5.875"
5.875"
5.875"
5.875"
5.875"
5.875"
5.875"
5.875"
5.875"
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
(149.2mm)
3/4”
3/4”3/4”
(76mm)
(76mm)
(76mm)
(76mm)
(76mm)
(76mm)
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Four Point Terminal
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
Board for lead wire
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
connections. Each #6-32
screw terminal
screw terminal will
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
accomodate one
accomodate one
#12 or smaller AWG wire
#12 or smaller AWG wire
#12 or smaller AWG wire
#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
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.
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
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.