Honeywell Water System 4973 Series User Manual

04973 Series Conductivity Cells  
Installation and Maintenance Manual  
70-82-25-17  
10/07  
Honeywell Field Solutions  
 
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
2
6/99  
6/03  
Edits were made to add information for the 9782C and to correct some  
erroneous information.  
Edits were made to add information for the DL43XX Cells for DirectLine  
Modules  
3
4
5
6/04  
10/05  
10/07  
Edit text and update the Installation drawings to remove 7082 information.  
Edit text and add electrical connection drawings for UDA2182 analyzer  
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 the material  
discussed in this publication.  
Document Title  
ID #  
APT2000CC Transmitter User Manual  
APT4000CC Analyzer User Manual  
UDA2182 Analyzer User Manual  
70-82-25-95  
70-82-25-104  
70-82-25-119  
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iii  
 
Contacts  
World Wide Web  
Telephone  
Contact us by telephone at the numbers listed below.  
Organization  
Phone Number  
United States and Canada  
Honeywell  
1-800-423-9883  
Tech. Support  
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Installation and Maintenance Manual  
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Contents  
1.  
2.  
3.  
INTRODUCTION................................................................................................... 1  
1.1 Overview ........................................................................................................................................ 1  
1.2 Description ..................................................................................................................................... 1  
SPECIFICATIONS................................................................................................. 4  
2.1 Specifications for 04973 Series...................................................................................................... 4  
2.2 Specifications for 055919 Flow Chamber...................................................................................... 4  
INSTALLATION .................................................................................................... 5  
3.1 General Requirements .................................................................................................................... 5  
3.2 The Differences between the Quick Disconnect and Integral Cable Option.................................. 5  
3.3 In-Line Type Mounting.................................................................................................................. 6  
3.4 Flow-Type Mounting ..................................................................................................................... 6  
3.5 Torque Recommendations.............................................................................................................. 7  
3.6 Dimension Drawings...................................................................................................................... 7  
4.  
ELECTRICAL CONNECTIONS........................................................................... 10  
4.1 Overview ...................................................................................................................................... 10  
4.2 Instrument Wiring for 4973 Cells with Integral Cable................................................................. 10  
4.2.1 Model 4973 Series with Integral Cable to UDA2182 Analyzer........................................ 10  
4.2.2 Model 4973 Series with Integral Cable to APT Series Analyzer/Transmitter................... 12  
4.3 Instrument Wiring for 4973 Cells with Quick Disconnect Cable................................................. 13  
4.3.1 Wiring Model 4973 with Quick Disconnect Cable to UDA2182...................................... 13  
4.3.2 Wiring Model 4973 with Quick Disconnect Cable to Junction Box................................. 13  
4.3.3 Wiring Model 4973 with Quick Disconnect Cable to APT............................................... 14  
5.  
6.  
MAINTENANCE.................................................................................................. 15  
5.1 Overview ...................................................................................................................................... 15  
5.2 To Clean the Cell.......................................................................................................................... 15  
5.3 Check Conductivity System ......................................................................................................... 15  
5.4 Troubleshooting............................................................................................................................ 15  
5.5 Air Entrapped in Cell Flow Channel............................................................................................ 16  
ACCESSORIES AND SPARE PARTS ............................................................... 17  
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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 ______________________________________________ 11  
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_______________________________________________________________________ 13  
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  
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Introduction  
1. Introduction  
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 and 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 and 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.  
For in-line applications, the 3/4” NPT male thread permits permanent installation in a pipe or tank; the 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 Figure 1-2 by  
using a Flow Chamber or a 3/4” pipe tee as shown in Figure 1-3. These arrangements are designed to keep  
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 Figure 1-1. The 0.01, 0.1, 1 and 10 cell constants are  
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  
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.  
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Introduction  
Potted  
Connector  
Housing *  
11/8" Hex  
Across Flats  
3/4 NPT  
Molding  
Flow  
Channel  
Insertion  
Depth  
(See  
Flow  
Holes  
Graphite  
Electrodes  
Specifications)  
* This is the integral  
cable option. Quick  
disconnect option  
also available.  
Titanium  
Electrodes  
Teflon  
Sheath  
FLOW  
FLOW  
Cell Constant  
0. 1  
1.0  
1 0  
0.0 1  
Universal Head  
Conductivity  
Cell  
Conduit  
¾”  
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.  
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Introduction  
Preferred  
Cell Locations  
Process  
Cool er  
Pump  
a/n 23340  
Figure 1-2 Recommended Locations for Mounting a Conductivity Cell  
*Maximum allowable operating temperature  
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  
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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  
0.01 and 0.1 constant, titanium  
Electrode Material  
1.0 and 10 constant, high density graphite with  
Teflon sheath  
1724 kPa (250 psig) at rated temperature  
140°C (284°F) at rated pressure  
Maximum Pressure Limit  
Maximum Continuous Temperature Limit  
For PVC wire:  
105°C (221°F)  
Materials of Construction  
Cable Options  
Cell Body: PES (polyethersulfone)  
Electrodes: see ‘Electrode Material’  
Leadwire: PVC insulated 18 gage cable  
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  
Approvals  
CRN #0F11607.5C  
3/4” NPT male, Schedule 40 and 80 pipes  
Insertion  
3-1/2” (89 mm) for 1, 10 and 0.01 cell constants  
from solution end of 3/4" MNPT  
Insertion Depth  
2-1/2” (64mm) for 0.1 cell constant  
2.2 Specifications for 055919 Flow Chamber  
Parameter  
Description  
2 gpm @ 40psig and atmospheric discharge  
200 psig @ 25°C  
Maximum Flow  
Maximum Pressure  
Maximum Temperature  
Dimensions  
140°C (284°F) at atmospheric pressure  
See Figure 3-1  
Polyethersulfone (PES)  
Materials of Construction  
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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 3.3 and 3.4.  
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.  
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 3.5. Over-tightening can break  
the cell or severely stress it causing cracks to develop, leading to eventual malfunction.  
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 for 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.  
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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 flow-  
type 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.  
See Figure 1-1.  
Locate the cell on the pressure side, not the vacuum side, of pumps. See Figure 1-2.  
Avoid a horizontal cell mounting having the flow channel, see Figure 1-1, opposite to the flow exit of  
the pipe line, especially for the 1 and 10 constant cells. If necessary, refer to Section 5.5.  
The 3/4” tee arrangement, Figure 1-3, assures that the cell is immersed well into the flow stream to  
obtain a representative sample. The tee is not supplied.  
Installation  
1. Tighten the cell into a 3/4” pipe tee (do not exceed a tightening torque greater than that indicated in  
Section 3.5).  
2. If the flow-cell housing is used, assemble the cell and housing and install it in the process flow line or  
in a bypass line as indicated in 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.  
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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  
1 1/ 8"  
1 1/2"  
3/4" NPT (Female)  
(38mm)  
(38mm)  
Flow Chamber  
Flow In  
Hexagon  
1 1/2"  
(38mm)  
Octagon  
3/4" NPT  
(Male)  
1 1/2"  
(38mm)  
8 3/4"  
(222mm)  
14 1/2" max  
(368mm)  
3/4" Fitting  
Allow 4 1/8" (105mm) for re  
moval of cell  
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.  
2" min.  
(51mm)  
a/n 23342  
Figure 3-1 Dimension Drawing for 055919 Flow Chamber  
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Installation  
4.25  
107.9  
8-32 UNC – 2B 250 DEEP  
1.0  
25.4  
.875  
22.22  
.50  
12.7  
1.5  
38.1  
3.75  
95.25  
4.0  
101.6  
1/8 NPT  
4.5  
114.3  
3/4 NPT  
Figure 3-2 Dimension Drawing for 31079198 Flow Chamber  
"X"  
See Table  
5.875"  
(149.2mm)  
Dim "X"  
Inch mm  
Table I  
0.01  
3.3  
2.6  
3.5  
3.5  
84  
66  
89  
0.1  
1.0  
0.593" Dia.  
(15mm)  
10  
89  
3/4”  
(76mm)  
3/4" NPT  
1.13" Hex  
(29mm)  
Four Point Terminal  
Board for lead wire  
connections. Each #6-32  
screw terminal will  
¾” female NPT for user's  
flexible electrical conduit  
connection. For insertion or  
removal of cell, disconnect  
conduit connections.  
accomodate one  
#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  
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Installation  
± 0.031  
± 0.787  
“X”  
2.771" ±.035  
See Table  
(154mm ±.889)  
"Z"  
"Y"  
Internet cable option is  
approx. 0.250” (6,4mm) O.D.  
with 4 4973 Series Cells  
3/4" NPT  
1.13" Hex  
1 .1" Dia.  
(27.9mm)  
(29mm)  
Dim"X"  
Dim"Y"  
Dim"Z"  
mm  
Inch  
Suffix A  
0.01  
0.1  
mm  
84  
66  
mm  
17.85 .542  
Inch  
Inch  
.703  
.703  
3.3  
2.6  
3.5  
13.76  
13.76  
15.87  
.542  
.625  
17.85  
1 5.06  
1 5.06  
89  
.593  
.593  
1.0  
10  
89  
14.32  
3.5  
.564  
Figure 3-4 Outline and Dimensions for Conductivity Cell with Integral Cable  
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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 MINIMUMCOAXIAL 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.  
DRAWING 50012874  
Figure 4-1 Installation Diagram, 4973 Cells, with junction box head connected to UDA2182  
Analyzer  
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Installation and Maintenance Manual  
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Electrical Connections  
50  
YELLOW  
COAX  
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 MINIMUMCOAXIAL 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.  
DRAWING 50012875  
Figure 4-2 Installation Diagram, 4973 Cells, with Integral Cable Leads Directly Connected  
to UDA2182 Analyzer or Connected to Junction Box  
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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  
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Electrical Connections  
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  
Signal  
Name  
10  
Cell Low  
Yellow  
9
8
7
Coax  
Cell High  
6
5
4
3
RTH 3rd Wire  
Jumper  
Green  
Red  
RTH Low  
RTH High  
Brown  
Blue  
2
1
Wire to chassis  
ground screw  
Earth Ground  
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  
YELLOW  
COAX  
20 OR 50 FT. CABLE LENGTH.  
DRAWING 50012875  
Figure 4-5 Installation diagram for 4973 cells with Quick Disconnect Cable connected to  
junction box  
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Electrical Connections  
4.3.3 Wiring Model 4973 with Quick Disconnect Cable to APT  
NOTE: IGNORE BLUE AND BROWN WIRES.  
Figure 4-6 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to  
APT4000  
NOTE: IGNORE BLUE AND BLACK WIRES.  
Figure 4-7 Wiring Diagram for 4973 Cells with Quick Disconnect Cable Connected to  
APT2000  
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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.  
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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  
Flow Cell Housing (PES)  
Part Number  
055919  
Flow Cell Housing (316 SS)  
Junction Box  
31079198  
31316260  
Teflon Shield  
White for 1 const. cell  
31021599  
31018760  
Clear for 10 const. cell (see note below)  
Extension Cables for Sensors with Quick Disconnect Option  
2 m (6.56 ft.)  
50024092-001  
50024092-002  
50024092-003  
50024092-004  
3 m (9.84 ft.)  
6 m (19.69 ft.)  
15 m (49.21 ft.)  
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)  
834059  
835024  
To 1000 ft.:  
Coax cable (Belden 9259)  
835024  
Wide Range 9782 and 7082  
To 500 ft.:  
4-conductor, 18 gage cable only  
To 1000 ft.:  
4-conductor (3 used), 16 gage only  
31834052  
834055  
For all cells with an ATC other than 333:  
3-conductor, 18 gage cable (Belden 9493) only  
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  
 

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