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Model 4081 T
Remote Controlled FOUNDATION
Fieldbus
Two-Wire
Conductivity Transmitter
Instruction Manual
PN 51-4081T/rev.D
April 2003
4
ESSENTIAL INSTRUCTIONS
READ THIS PAGE BEFORE PROCEEDING!
Rosemount Analytical designs, manufactures, and tests its products to meet
many national and international standards. Because these instruments are
sophisticated technical products, you must properly install, use, and maintain
them to ensure they continue to operate within their normal specifications. The
following instructions must be adhered to and integrated into your safety
program when installing, using, and maintaining Rosemount Analytical
products. Failure to follow the proper instructions may cause any one of the
following situations to occur: Loss of life; personal injury; property damage;
damage to this instrument; and warranty invalidation.
• Read all instructions prior to installing, operating, and servicing the product.
If this Instruction Manual is not the correct manual, telephone 1-800-654-
7768 and the requested manual will be provided. Save this Instruction
Manual for future reference.
• If you do not understand any of the instructions, contact your Rosemount
representative for clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with
the product.
• Inform and educate your personnel in the proper installation, operation, and
maintenance of the product.
• Install your equipment as specified in the Installation Instructions of the
appropriate Instruction Manual and per applicable local and national codes.
Connect all products to the proper electrical and pressure sources.
• To ensure proper performance, use qualified personnel to install, operate,
update, program, and maintain the product.
• When replacement parts are required, ensure that qualified people use
replacement parts specified by Rosemount. Unauthorized parts and
procedures can affect the product’s performance and place the safe
operation of your process at risk. Look alike substitutions may result in fire,
electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are in
place, except when maintenance is being performed by qualified persons, to
prevent electrical shock and personal injury.
Emerson Process Management
Rosemount Analytical Inc.
2400 Barranca Parkway
Irvine, CA 92606 USA
Tel: (949) 757-8500
Fax: (949) 474-7250
http://www.RAuniloc.com
© Rosemount Analytical Inc. 2001
TABLE OF CONTENTS
Section Title Page
1.0 INSTALLATION ................................................................................................................. 1-1
1.1 Overview .................................................................................................................. 1-1
1.2 Mechanical Installation............................................................................................. 1-2
1.3 Electrical Installation ................................................................................................ 1-4
1.4 Installation Verification ............................................................................................. 1-4
2.0 OPERATION OVERVIEW ................................................................................................. 2-1
2.1 General .................................................................................................................... 2-1
2.2 Display ..................................................................................................................... 2-1
2.3 Infrared Remote Control (IRC)................................................................................. 2-2
2.4 Diagnostic Messages............................................................................................... 2-2
2.5 Menu Program Tree ................................................................................................. 2-3
3.0 FACTORY PROGRAMMED SETTINGS ........................................................................... 3-1
3.1 General .................................................................................................................... 3-1
4.0 TRANSMITTER PROGRAM SET-UP ............................................................................... 4-1
4.1 Program Menu ......................................................................................................... 4-1
4.2 Temperature Parameters ......................................................................................... 4-2
4.3 Display Units ............................................................................................................ 4-3
5.0 START-UP AND CALIBRATION....................................................................................... 5-1
5.1 Accessing The Calibrate Menu ................................................................................ 5-1
5.2 Calibrate Menu (Toroidal)......................................................................................... 5-2
5.3 Calibrate Menu (% Concentration)........................................................................... 5-3
5.4 On-line Calibration ................................................................................................... 5-4
6.0 DIAGNOSIS AND TROUBLESHOOTING ........................................................................ 6-1
6.1 Overview .................................................................................................................. 6-1
6.2 Fault Conditions ....................................................................................................... 6-3
6.3 Diagnostic Messages............................................................................................... 6-4
6.4 Quick Troubleshooting Guide................................................................................... 6-5
6.5 Systematic Troubleshooting..................................................................................... 6-6
6.6 RTD Resistance Values ........................................................................................... 6-7
7.0 MAINTENANCE ................................................................................................................ 7-1
7.1 Overview .................................................................................................................. 7-1
7.2 Preventative Maintenance ....................................................................................... 7-1
7.3 Corrective Maintenance ........................................................................................... 7-1
8.0 PRODUCT DATA............................................................................................................... 8-1
9.0 OPERATION WITH REMOTE CONTROLLER ................................................................. 9-1
10.0 RETURN OF MATERIALS ................................................................................................ 10-1
Appendix Title Page
A GLOSSARY....................................................................................................................... A-1
B 4081T RESOURCE AND TRANSDUCER BLOCK PARAMETERS ................................ B-1
i
MODELS 4081T TABLE OF CONTENTS
MODEL 4081T
MICROPROCESSOR ANALYZERS
ii
LIST OF FIGURES
Figure No. Title Page
1-1 Exploded Drawing of Circuit Board Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Dimensional Information - Model 4081T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-3 Mounting Information - Model 4081T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-4 Function Wiring Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-5 Model 4081T Wiring Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1-6 Model 4081T Wiring with Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1-7 Model 4081T Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1-8 Typical Fieldbus Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1-9 Wiring For Explosion Proof Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1-10 Wiring For CSA Intrinsically Safe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1-11 Wiring For FMRC Intrinsically Safe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
2-1 Process Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Program Mode Display Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-3 Infrared Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-4 Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
4-1 Program Menu and Menu Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 RTD Sensor Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-3 Security Code Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
5-1 Calibration Menu Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 Calibration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
6-1 Diagnose Menu Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-2 Diagnose Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-3 Disabling Fault Annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-4 Warning Annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-5 Troubleshooting Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
7-1 Hold Annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7-2 Exploded View - 4081T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
8-1 Transmitter Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8-2 Infrared Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8-3 Function Block Diagram with F
OUNDATION
Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
9-1 Function Block Diagram with F
OUNDATION Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
LIST OF TABLES
Table No. Title Page
1-1 Hardware/Software Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-2 Transmitter Range Limits (Conductivity) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1-3 Transmitter Range Limits (Concentration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3-1 Program Variables with Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
4-1 Program Menu Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
5-1 Nominal Cell Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5-2 Calibrate Menu Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
6-1 Diagnostics Variables Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-2 Diagnostic Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-3 Quick Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6-4 RTD Resistance Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6-5 Conductivity Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
7-1 4081 T Replacement Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
MODELS 4081T TABLE OF CONTENTS
MODELS 4081T SECTION 1.0
INSTALLATION
SECTION 1.0
INSTALLATION
FIGURE 1-1. Model 4081T Transmitter - Exploded Drawing of Circuit Board Stack
1.1 OVERVIEW
This inductive conductivity transmitter has been
designed for easy installation and shipment. The pur-
pose of this section is to provide information on the elec-
trical configurations and the physical mountings
available. Prior to discarding the packing case:
If it is damaged, the transmitter may have also
sustained damage. Contact the carrier at once.
Remove all items shown on the packing list and
note any exceptions.
1-1
The Model 4081T conductivity transmitter is designed to
make accurate measurements while the sensor is sub-
mersed in the process stream. Measurements can also
be tailored to high temperature and/or high pressure
streams. The specific ranges covered are controlled by
both hardware and software.
1-2
FIGURE 1-2. Dimensional Information – Model 4081 T
DWG. NO. REV.
44081C01 A
MILLIMETER
INCH
MODELS 4081T SECTION 1.0
INSTALLATION
1.2 MECHANICAL INSTALLATION
The Model 4081 T Transmitter is suitable for installation in
harsh environments.
• For best operation, locate in an area where tempera-
ture extremes, vibrations, electromagnetic, and radio
frequency interferences are minimized or absent.
The transmitter is equipped with two 3/4 in. FNPT conduit
openings, one on each side of the transmitter housing.
• Remove the terminal end cap.
• With the transmitter positioned with the wiring terminal
side of the enclosure opened (as seen in Figure 1-2),
use the left conduit opening to bring in the sensor
wiring, and the right side conduit opening for power
supply/current loop wiring.
• To prevent moisture from entering the transmitter
housing, use weathertight cable glands supplied by
others.
NOTE
Moisture accumulation in the transmitter
housing can affect transmitter performance
and may void its warranty.
• If conduit is used, connections on the transmitter hous-
ing should be plugged and sealed (with tape, pipe com-
pound, or sealant) to prevent moisture accumulation in
the terminal side of the housing.
• The transmitter must be installed so that the conduit
openings are not on the top, because moisture can
accumulate in that position.
• The transmitter should be easily accessed by operating
and maintenance personnel.
1.2.1 Flat Surface Mounting. The transmitter may be
mounted on a flat surface (see Figure 1-2) using the thread-
ed mounting holes on the bottom of the transmitter.
1.2.2 Pipe Mounting Bracket. An optional pipe mounting
bracket is available. See Figure 1-3 for mounting information.
1-3
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-3. Mounting Information - Model 4081 T
DWG. NO. REV.
40408103 B
DWG. NO. REV.
40408104 F
MILLIMETER
INCH
1-4
MODELS 4081T SECTION 1.0
INSTALLATION
1.3 ELECTRICAL INSTALLATION
1.3.1 Conductivity Sensors
Rosemount Analytical Inc.’s inductive conductivity sensors
with PT100 are compatible with the Model 4081T transmit-
ter. Please refer to Figures 1-4 thru 1-6 for appropriate
sensor to transmitter wiring. The sensor cable should be
routed through the conduit opening closest to the Pin 2
connection.
1.3.2 Power Supply/Current Loop Wiring.
The Model 4081T operates within a range of 9-32 VDC
power. The power supply wiring routes through the conduit
opening closest to pin number 16. Connect as illustrated in
Figure 1-7. For shielded power supply cable, the shield
should be connected to the earth ground connection.
The Model 4081T sensor connection requires connecting
the white toroid wire (see Figure 1-5) to either TB-1 pin 11
(indicated on the inside of the terminal end cap) for high
range, or TB-1 pin 12 for low range. To access the terminal
block, unscrew the terminal end cap.
1.3.3 Hazardous Area Installation
In order to maintain the hazardous area rating for installed
transmitter, the following drawings must be used:
Figure 1-9. Wiring for FM Explosion-Proof Installation for
Model 4081T (Drawing Number 1400175)
Figure 1-10. Wiring for CSA Intrinsic Safety for Model 4081T
(Drawing Number 1400190). See also label (right).
Figure 1-11. Wiring for FMRC Intrinsic Safety for Model
4081T (Drawing Number 1400185).
1.4 INSTALLATION VERIFICATION
1.4.1 Overview. Verification of installation includes ensur-
ing that the proper precautions have been observed during
the installation process and recognizing whether the
instrument is operating properly upon power up.
1.4.2 Precautionary Checklist. Before applying power
verify the following:
1. Sensor wiring and power supply/loop wiring are not in
the same conduit.
2. Sensor or power supply/loop wiring are at least 12
inches from any high current lines.
3. Sensor chosen is compatible with the 4081T
Transmitter.
4. Terminal end cap has been replaced.
1.4.3 Power Up. Activate power supply. Upon powering
up, with the sensor in solution, the transmitter:
1. Should display a live conductivity reading in large, dark
numerals on a gray background.
2. Should display the present temperature in smaller numer-
als on the lower line of the display screen.
3. Should NOT have the word FAULT or HOLD appearing on
the left edge of the display. The display should not be flash-
ing.
TABLE 1-1. Hardware/Software Compatibility
(Measurement Range [µS/cm]*)
MANUAL RANGE 1 2 3
Low Range 80 to 800 to 7,500 to
(accuracy: ± 1.0%) 800 7,500 80,000
High Range 1,100 to 11,000 to 100,000 to
(accuracy: ± 1.0%) 11,000 100,000 1,100,000
Wire Terminal
11
or 12
*NOTE: Values shown are for uncompensated conductivity using
a cell constant of 1.0. The conductivity values auto
ranges from 0 to 2,000,000
µS/cm with an accuracy of
5 to 10%
±150 µS/cm depending on the process con-
ditions, installation, and the sensor used. For greater
accuracy and repeatability, manual range selection is
recommended.
LABEL, I.S. N.I. & EX CSA approved for Model 4081T
MODELS 4081T SECTION 1.0
INSTALLATION
TABLE 1-2. Transmitter Range Limits (Conductivity)
TABLE 1-3. Transmitter Range Limits (Concentration)
PV_HIGH_LOW_RANGE MANUAL_AUTO_RANGE RANGE_VALUE CELL_CONSTANT (0% FS) (100% FS)
Manrng
(1/cm) EU0%
µµ
S/cm EU100%
µµ
S/cm
Low Auto N/A N/A 0 400,000
High Auto N/A N/A 0 1,200,000
Low Manual 1 1.0 0 800
Low Manual 1 3.0 0 2,400
Low Manual 2 1.0 0 8,000
Low Manual 2 3.0 0 24,000
Low Manual 3 1.0 0 80,000
Low Manual 3 3.0 0 240,000
Low Manual 4 1.0 0 400,000
Low Manual 4 3.0 0 1,200,000
High Manual 1 1.0 0 11,000
High Manual 1 3.0 0 33,000
High Manual 2 1.0 0 110,000
High Manual 2 3.0 0 330,000
High Manual 3 1.0 0 1,200,000
High Manual 3 3.0 0 3,600,000
PV_HIGH_LOW_RANGE (0% FS) (100% FS)
EU0%
µµ
S/cm EU100%
µµ
S/cm
NaOH 0% 12.00%
HCl 0% 15.00%
low H
2
SO
4
0% 25.00%
high H
2
SO
4
96.00% 99.00%
1-5
1-6
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-4. Wiring Schematic Showing Signal Function On Each Connection
MILLIMETER
INCH
1-7
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-5. Model 4081T Sensor Wiring Schematic by Sensor Model
MILLIMETER
INCH
1-8
FIGURE 1-6. Model 4081T Sensor Wiring with Junction Box
MODELS 4081T SECTION 1.0
INSTALLATION
MILLIMETER
INCH
1-9
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-7. MODEL 4081T TERMINAL BLOCKS
FIGURE 1-8. TYPICAL FIELDBUS NETWORK ELECTRICAL WIRING CONFIGURATION
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-9. EXPLOSION-PROOF INSTALLATION
1-10
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-10. CSA INTRINSICALLY SAFE INSTALLATION (1 of 2)
1-11
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-10. CSA INTRINSICALLY SAFE INSTALLATION (2 of 2)
1-12
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-11. FMRC INTRINSICALLY SAFE INSTALLATION (1 of 2)
1-13
1-14
MODELS 4081T SECTION 1.0
INSTALLATION
FIGURE 1-11. FMRC INTRINSICALLY SAFE INSTALLATION (2 of 2)
2-1
2.1 GENERAL
The Model 4081T transmitter operates in either the
Process or Program modes. The process mode screen
is illustrated in Figure 2-1 and the program mode screen
is illustrated in Figure 2-2.
2.2 DISPLAY
2.2.1 Process Mode (normal operating mode). When
operating in this mode:
• The primary process variable (the conductivity) is
continuously displayed (see 1 in Figure 2-1)
• Engineering units are determined by the process
display mode
• Temperature output is in °F or °C (see 2 in Figure 2-1)
2.2.2 Program Mode (programming or calibrating
mode — step-by-step instructions for programming
and calibrating the transmitter are given in Sections
4.0 and 5.0, respectively). When operating in this mode
the following information is provided on the instrument
display:
• Continuous display of the primary process variable
is still available.
• Menus are displayed below the process variable.
The active subset title is in bold print (see 1 in
Figure 2-2).
CALIBRATE PROGRAM DIAGNOSE
CALIbrAtE
EXIT NEXT ENTER
1000
mS/cm
F
A
U
L
T
H
O
L
D
5
4
1
3
MODELS 4081T SECTION 2.0
OPERATION OVERVIEW
SECTION 2.0
OPERATION OVERVIEW
2
FIGURE 2-1. Process Display Screen
11000000
mS/cm
25.0C
FIGURE 2-2. Program Mode Display Areas
• Security ID (see Section 4.4, step 10) and prompts
are displayed below the segments (see 2 and 3 in
Figure 2-2).
• FAULT is displayed (see 4 in Figure 2-2) when a
transmitter disabling condition occurs. When in the
fault mode, the fault indicator lights up and the
process variable flashes. The program mode must
be entered to see the descriptive fault message.
• HOLD (see 5 in Figure 2-2) becomes visible when-
ever the transmitter is placed in the hold or test
function. Hold is most often used when
servicing/cleaning the sensor. It initiates the simu-
late mode.
2
1
2-2
2.3 INFRARED REMOTE CONTROL (IRC)
The IRC is the most convenient way to calibrate, pro-
gram, or access the diagnostics in the transmitter. It
operates the same as other remote controllers.
For best operation, the IRC should be within six feet of
the transmitter and aimed directly at the infrared sensor
window (small square window at top of display) at an
angle of no more than fifteen degrees. The amount of
ambient light may also affect IRC communication.
2.3.1. The overall menu structure is shown in Figure 2-4.
The top level functions available to the IRC (CAL,
PROG, and DIAG) are shown on the display with the
active menu segment highlighted as described in
Section 2.2.
2.3.2. Menu Keys. The three primary menu structures
are Calibrate (CAL), Program (PROG), and Diagnose
(DIAG). They are shown horizontally on the screen and
have separate keys on the IRC (see 1, 2, and 3 in Figure
2-3). Pressing the labeled key will provide access to that
menu.
2.3.3. Program Command Keys. The three program
command keys are labeled ENTER, NEXT, and EXIT
(see 4, 5, and 6 in Figure 2-3). These keys are used as
follows:
ENTER: This advances down through the sub-
menus to the prompts, will save the new value,
and activate NEXT.
NEXT: This advances the program to the next
sub-menu.
EXIT: This key is used to abort the current sub-
menu operation and return to the previous
menu segment.
2.3.4. Editing Keys. These keys are used to edit input
variables (see Figure 2-3). The left/right arrows change
the location of the prompt and causes the integer to
flash. These also allow access to the measurement unit
and decimal place location. When a flashing mnemonic
appears on the display, the UP and DOWN arrow keys
scroll up or down through the list. When numbers are
shown, the UP and DOWN keys change the value of
the digit.
MODELS 4081T SECTION 2.0
OPERATION OVERVIEW
9
8
6
5
4
3
2
1
Editing
keys
FIGURE 2-3. Infrared Remote Control
2.3.5. Special Entry Keys. These keys provide system
level operations.
RESET: Aborts the current operation and
returns to the process display screen (see 8 in
Figure 2-3).
HOLD: Accesses prompt to toggle between
enable and disabling of this function (see 9 in
Figure 2-3).
2.4 DIAGNOSTIC MESSAGES
Whenever a warning or fault has been triggered, diag-
nostic messages are displayed to aid in problem solv-
ing. These messages flash alternately with the
temperature reading.
If more than one message has been generated, the
warning or fault messages will alternate with the regular
readings.
See Section 6.0 Diagnosis and Troubleshooting for
message meaning and possible causes.
/
