Page 1
Product Data Sheet
71-54e/rev.H
January 2006
CONDUCTIVITY, pH/ORP, & AMPEROMETRIC
HART
®
ANALYZERS/CONTROLLERS
Model 54e
Model 54e Family of Analyzers/Controllers
• NEMA 4X (IP65) WEATHERPROOF CORROSION-RESISTANT ENCLOSURE.
• BACK-LIT DISPLAY with easy-to-use interface.
• TWO INDEPENDENT OUTPUTS.
• THREE ALARMS WITH PROGRAMMABLE LOGIC, plus one dedicated fault alarm.
• OPTIONAL TPC AND PID CONTROL CAPABILITY.
Model 54e pH/ORP Analyzer/Controller
• COMPREHENSIVE pH GLASS DIAGNOSTICS1warn user of the need for calibration, maintenance, or sensor replacement.
• AUTOMATIC CALIBRATION with buffer recognition and stabilization check.
• SELECTIVE ION CAPABILITY.
1
U.S. Patent No. 5,469,070.
Model 54eA Amperometric Analyzer/Controller
• MEASURES dissolved oxygen (ppm & ppb level), free chlorine, total chlorine, and ozone.
• ON-BOARD PRESSURE SENSOR for automatic air-calibration of oxygen sensors.
• SECOND INPUT FOR pH SENSOR ALLOWS AUTOMATIC pH CORRECTION for free
chlorine measurement. No expensive reagents needed.
• AUTOMATIC BUFFER RECOGNITION for pH calibration.
• INTERVAL TIMER operates spray cleaner for oxygen sensor in aeration basins.
Model 54eC Conductivity/Resistivity Analyzer/Controller
• MEASURES Conductivity, Resistivity, or Percent (%) Concentration.
• USES EITHER CONTACTING OR INDUCTIVE SENSORS to meet most application
requirements.
• PERCENT CONCENTRATION CURVES FOR 0-12% NaOH, 0-15% HCl, and 0-25%
or 96-99.7% H2SO4.
• TEMPERATURE CORRECTION ALGORITHMS for high purity water, cation conductivity, & linear temperature coefficient. Temperature correction can also be turned off.
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FEATURES AND APPLICATIONS—GENERAL
The Model 54e family of analyzers, with the appropriate
sensors, monitor and control pH/ORP, conductivity/resistivity, dissolved oxygen (ppm and ppb level), free chlorine,
total chlorine, or ozone in a variety of process liquids.
The analyzer/controller is housed in a rugged NEMA 4X
(IP65) weatherproof, corrosion resistant enclosure of
epoxy-painted aluminum. It is suitable for panel, pipe or
wall mounting. All functions are accessible through the
front panel membrane keyboard that features tactile feedback. The large back-lit dot-matrix liquid crystal display
continuously indicates the measured variable in large
numerals, along with the temperature, output value and
two programmable process parameters (such as alarms or
diagnostics variables). Three levels of security are available: 1) calibration, 2) output range and alarm setpoint
adjustment, and 3) advanced configuration. A hinged front
panel provides convenient wiring access. All operations
and descriptive messages can be field selected for English, French, German, Italian, or Spanish.
The Model 54e is a member of the Rosemount SMART
FAMILY®of instruments which is designed to communi-
cate with the Model 275 HART
®
hand-held communicator
and any other host, including AMS, that supports the 275
HART communication protocol.
The two independent, isolated outputs provide 4-20 or
0-20 mA signals for the process measurement and temperature. The controller option also allows PID control
choices acting on process measurement or temperature.
Manual control of the output may also be selected for
routine maintenance and tests.
Three process alarms are a standard feature. All alarms
have programmable high or low activation, independent
setpoints, adjustable hysteresis (deadband), and time
delay. One relay may be configured as a timer relay for
chemical cleaning, which may be activated at a specific
time interval. An overfeed timer feature is also selectable
for any one process relay. The control option allows each
alarm the additional choice of Time Proportional Control.
During any relay activation, a corresponding Green LED is
illuminated.
®
SMART FAMILY is a registered trademark of Rosemount Inc.
®
HART is a registered trademark of the HART Communication Foundation.
SPECIFICATIONS - GENERAL
Enclosure: Epoxy-painted (dark gray) cast aluminum,
NEMA4X (IP65). 144 x 144 x 132 mm
(5.7 x 5.7 x 5.2 in.), DIN size panel cut-out.
Front Panel: Membrane keypad with tactile feedback.
Three green LEDs indicate alarm status. Red LED
indicates fault condition.
Display: Three-line, back-lit, dot matrix LCD, 70 x 35 mm.
First line is measurement reading. Second line is temperature and current output. Third line is user-selectable. Character heights: 1st line - 16 mm (0.6 in.),
2nd and 3rd lines - 7 mm (0.3 in.).
Hazardous Location Approvals:
Class I, Division 2, Groups A, B, C, & D.
T5 Ta=50°C. Dust ignition proof: Class II,
Division 1, Groups E, F, & G; Class III.
FM: Max. relay contact rating: 28 Vdc
resistive
150 mA - Groups A & B;
400 mA - Group C;
540 mA - Group D
CSA:
Max. relay contact rating:
28 Vdc; 110 Vac; 230 Vac;
6 amps resistive. Enclosure Type 4.
Power:
Code -01: 100 - 127 Vac, 50/60 Hz ± 6%, 8 W
200 - 253 Vac, 50/60 Hz ± 6%, 8 W
Code -02: 20 - 30 VDC, 6 W
RFI/EMI: EN-61326
LVD (Code -01 only): EN-61010-1
Outputs: Two 4-20 mA or 0-20 mA isolated outputs.
Continuously adjustable. Outputs can be assigned to
the primary measurement, glass impedance (pH
only), reference impedance (pH only), or temperature.
Output dampening is user-selectable. Maximum load
at 24 Vdc or 115/230 Vac is 500 ohms. Maximum
load at 100/200 Vac is 500 ohms. Output 1 has
superimposed HART signal (option -09 only).
Outputs can be programmed for PID control (option
-20 only).
Output Accuracy: ± 0.05 mA
Alarms:
Relay 1 - Process, Interval, or Time Proportional
Control (TPC requires code -20)
Relay 2 - Process, Interval, or Time Proportional
Control (TPC requires code -20)
Relay 3 - Process, Interval, or Time Proportional
Control (TPC requires code -20)
Relay 4 - Sensor/analyzer and process fault alarm
Each relay has a dedicated LED on the front panel.
Relay Contacts: Relays 1-3: Epoxy sealed form A
contacts, SPST, normally open
Relay 4: Epoxy sealed form C, SPDT
Resistive
Inductive
28 Vdc 5.0 Amps 3.0 Amps
115 Vac 5.0 Amps 3.0 Amps
230 Vac 5.0 Amps 1.5 Amps
Temperature Sensors Accepted: Pt 100 RTD,
Pt 1000 RTD, 22K NTC thermistor (54eA only).
Ambient Temperature: 0 to 50°C (32 to 122°F). Analyzer
can be operated between -20 and 60°C (-4 to 140°F)
with some degradation in display quality.
Relative Humidity: 95% (maximum) non-condensing
Weight/Shipping Weight: 4 lb/5 lb (1.8 kg/2.3 kg)
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PANEL MOUNTING DIMENSIONS
WHEN INCH AND METRIC DIMS
ARE GIVEN
MILLIMETER
INCH
Page 4
Page 4
PIPE AND WALL MOUNTING DIMENSIONS
WHEN INCH AND METRIC DIMS
ARE GIVEN
MILLIMETER
INCH
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CODE MEASUREMENT SELECTION
pH/ORP pH/ORP
C Conductivity/Resistivity
A Amperometric (Chlorine, Dissolved Oxygen, and Ozone)
MODEL
54e MICROPROCESSOR ANALYZER
CODE REQUIRED SELECTION
01 115/230 VAC, 50/60 Hz Power
02 24 VDC Power
CODE OPTIONS
09 HART Communications Protocol
20 Controller Outputs - PID and TPC
ACCESSORIES
PART NO. DESCRIPTION
2002577 Wall and two inch pipe mounting kit
23545-00 Panel mounting kit
23554-00 Cable glands, kit (Qty 5 of PG 13.5)
9240048-00 Stainless steel tag (specify marking)
ORDERING INFORMATION
54e pH/ORP -01 -20 EXAMPLE
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MODEL 54e pH/ORP ANALYZER
FEATURES AND APPLICATIONS
The Model 54e pH/ORP Microprocessor Analyzer, with the
appropriate sensor, is designed to monitor and control pH
or ORP in industrial and municipal processes using the
most advanced technology available.
The continuous diagnostic capability of the analyzer eliminates troubleshooting guesswork by alerting the user to
the following problems:
In the event of one of these conditions, the analyzer will
display a descriptive message of the problem, illuminate a
red LED on the front panel, and drive the outputs to preselected fault mode values. A dedicated fault relay may be
used to operate a visible or audible alarm.
The glass impedance is continuously monitored and can
be programmed to read out on the main display. Fault setpoints for the glass impedance are programmable. The
glass impedance is temperature compensated for the
greatest accuracy.
The automatic buffer recognition feature uses stored buffer
values and their temperature curves for the most common
buffer standards available worldwide. The analyzer will
recognize the last two buffers used for the two point calibration, and perform a self-stabilization check on the sensor in each buffer.
Three process alarms are a standard feature. All alarms
have programmable high or low activation, independent
setpoints, adjustable hysteresis (deadband), and time
delay. One relay may be configured as a timer relay for
chemical cleaning, which may be activated at a specific
time interval. An overfeed timer feature is also selectable
for any one process relay. The control option allows each
alarm the additional choice of Time Proportional Control.
During any relay activation, a corresponding Green LED is
illuminated.
The Model 54e pH/ORP is compatible with either an external Pt 1000 or a Pt 100 RTD located in the sensor to compensate the pH reading for process temperature
fluctuations. Manual temperature compensation is keyboard selectable. Processes with pH changes due to temperature can be compensated using a programmable
temperature coefficient or isopotential point.
• Cracked or broken pH electrode
• Aged glass - calibration recommended
• Worn out or non- immersed
electrode
• Poisoned reference (off-line
only)
• Faulty temperature element
• Open wiring
• pH electrode slope error
(off-line)
• Analyzer electronics failure.
EASY TO USE MENU-DRIVEN INTERFACE
AUTO CALIBRATION with buffer recognition and stabi-
lization check removes calibration guesswork.
DIAGNOSTIC MESSAGES are clearly spelled out on
the main display and on all other screens.
4.01
pH
Autocal buffer 1
Exit Buf 2 Enter
7.10
pH
25.0°C 12.1 mA
Cracked glass failure
In the screen above, pressing Enter (Function key #4)
initiates the automatic calibration procedure for buffer 1.
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Page 7
MODEL 54e pH/ORP ANALYZER
The Model 54e when configured as a pH analyzer,
requires a dual (glass and reference) impedance preamplifier (patent pending). This preamp converts the high
impedance pH glass electrode signal to a low impedance
signal. The preamplifier may be located in one of three
areas: 1) in the pH sensor for best performance, 2) in a
remote junction box when process temperatures exceed
80°C (176°F) in submersion applications, or 3) in the analyzer (included in circuitry) when the distance between the
pH sensor and the analyzer is 4.5 meters (15 feet) or less.
The Model 54e pH measures over the full range of 0-14
pH. The current output may be calibrated to represent any
1 to 14 pH span.
A two-point calibration is made by immersing the sensor in
two different buffer solutions and entering the pH values.
When two buffers are used, the microprocessor automatically calculates the electrode slope. The electrode slope
can be read on the display and manually adjusted. A onepoint process standardization is easily accomplished by
entering the pH value of a grab sample.
INSTRUMENT SPECIFICATIONS @ 25°C
Measurement Range: 0 to 14 pH
Output Scale Expansion:
Zero suppression: up to 13 pH units
Span: Any pH from 1 to 14
Accuracy: ± 0.01 pH
Repeatability: ± 0.01 pH
Stability: ± 0.01 pH/month, non-cumulative
Temperature Coefficient: Input: ± 0.003 pH/°C
Output: ± 0.006 pH/°C
Temperature Compensation:
Pt 100 or Pt 1000 RTD,
Automatic or Manual; –15 to 120°C (5 to 248°F)
RECOMMENDED SENSORS:
Model 320B Flow Through pH
Model 320HP High Purity pH
*Model 328A Steam Sterilizable pH
*Model 370 and 371 EuroSenz pH
Model 381+ Insertion/Submersion/Flow Through pH
*Model 389 Disposable pH
*Model 396 Disposable pH
*Model 396VP Disposable pH with VP 6.0 connector
Model 396P Disposable pH
Model 396PVP Disposable pH
Model 396R Retractable pH
Model 396RVP Retractable pH with VP 6.0 connector
Model 397 Quik Disconnect pH
Model 398 Insertion/Submersion pH
Model 398VP Insertion/Submersion with VP 6.0 connector
*Model 398R Retractable pH
*Model 398RVP Retractable pH with VP 6.0 connector
*Model 399 Disposable pH
*Model Hx338 Steam Sterilizable pH
*Model Hx348 Steam Sterilizable pH
The Model 54e when configured as an ORP analyzer,
measures over a range of -1400 mV to +1400 mV in either
the American convention (Oxidation Reduction Potential),
or the European convention (Reduction Oxidation-Redox).
Although temperature compensation is not used for ORP
measurements, the process temperature is measured and
displayed. Temperature measurement is made by an RTD
located in the sensor assembly.
INSTRUMENT SPECIFICATIONS @ 25°C
Measurement Range: –1400 to +1400 mV
Output Scale Expansion:
Zero suppression: up to ±1300 mV
Span: Any ORP range from 100 to 2800 mV
Accuracy: ± 1.0 mV
Repeatability: ± 1.0 mV
Stability: ± 1.0 mV/month, non-cumulative
Temperature Coefficient: Input: ± 0.2 mV/°C
Output: ± 0.4 mV/°C
Temperature Measurement: –15 to 120°C (5 to 248°F)
Pt 100 or Pt 1000 RTD
RECOMMENDED SENSORS:
Model 330 Flow Through ORP
*Model 371 EuroSenz ORP
Model 381+ Insertion/Submersion/Flow Through ORP
*
Model 389 Disposable ORP
Model 396P Disposable ORP
Model 396R Retractable ORP
Model 398 Insertion/Submersion ORP
Model 398VP Insertion/Submersion with VP 6.0 connector
Model 398R Retractable ORP
Model 398RVP Retractable ORP with VP 6.0 connector
The Model 54e when ordered for ISE capability, is
suitable for use with a number of ion-selective electrodes.
Consult the factory for available measurements and
ranges.
* Reference diagnostics not available with these sensors
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MODEL 54eC CONDUCTIVITY ANALYZER
Page 8
FEATURES AND APPLICATIONS
The Model 54e C Analyzer/Controller, with the appropriate sensor, monitors and controls conductivity/
resistivity in a variety of industrial processes. The
analyzer can use either a contacting electrode or an
inductive (toroidal) conductivity sensor, selected via
keyboard entry. Process measurement selections are
conductivity, resistivity, raw conductivity, or percent
(%) concentration.
The temperature correction algorithm is user-selectable. Choose from high purity water (dilute sodium
chloride), cation conductivity (dilute hydrochloric
acid), or an adjustable linear temperature coefficient
(0 to 5.00%/°C). The high purity water and cation
conductivity corrections are good to 100°C. The lin-
ear temperature correction applies between -5 to
200°C. The user can set the linear temperature coefficient's reference temperature.
The percent concentration measurement includes the
choice of four common solutions (0 to 12% NaOH,
0 to 15% HCl, and 0 to 25% or 96 to 99.7% H2SO4)
which include specific nonlinear temperature corrections that depend on the concentration being measured and the process temperature. A versatile data
entry menu for entry of a custom solution with concentration and conductivity values for up to five points
lets the analyzer generate a best fit quadratic curve.
Reference temperature and temperature slope may
be adjusted to provide optimum results.
INSTRUMENT SPECIFICATIONS @ 25°C
Measurement Range: –15 to 200°C (5 to 392°F)
Contacting: 0-20,000 µS/cm
Toroidal: 0-2 S/cm
Accuracy of Analyzer: (Analyzer connected to simulated sensor input)
Contacting Sensors: ±0.5% of reading, ±0.5 µS/cm
Inductive Sensors: ±1% of reading, 200 µS/cm to 2 S/cm, ± 5 µS/cm
Repeatability: ±0.25% of reading
Stability: ±0.25% of output range/month, noncumulative
Ambient Temperature Coefficient: ±0.01% of reading/°C
Temperature Compensation: -15 to 200°C (5 to 392°F) (automatic or manual)
Temperature Correction: High purity water (dilute sodium chloride), cation conductivity (dilute hydrochloric
acid), linear temperature coefficient (0.0 to 5.00%/°C), or none. High purity water and cation conductivity
temperature correction apply between 0 and 100°C. Linear temperature coefficient can be applied between
-5 and 200°C (23 to 392°F).
EASY TO USE MENU-DRIVEN INTERFACE
CUSTOM % CONCENTRATION CURVE is easy to
set up and update.
CONTROL SET-UP can be accomplished by entering four
parameters from the control menu (code option -20 only).
Setpoint: 1000 µS/cm
Proportional: 100.0%
Integral: 0 sec
Exit Edit
Number of points: 3
Ref temp: 25°C
Linear slope: 2.00%/°C
Exit Edit
Page 9
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MODEL 54eC CONDUCTIVITY ANALYZER
CONTACTING SENSORS
Conductivity Sensor 142, 400 142, 400 140, 141
Model Number 402, 403, 404 402, 403, 404 400, 402, 403
Cell Constant (/cm) 0.01 0.1 1.0
Recommended Conductivity 0-25 1-2000 10-10,000**
Range* (µµS/cm)
INDUCTIVE SENSORS
Conductivity Sensor
Model Number 226 228 225 222 (1in.) 222 (2 in.) 242
Nominal Cell Constant 1.0 3.0 3.0 6.0 4.0 *
Minimum Conductivity (µµS/cm) 50 200 200 500 500 100*
Maximum Conductivity (µµS/cm) 1,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000*
* Model 242 values depend on sensor configuration and wiring.
* For sensor linearity equal to or better than 1% with ENDURANCE series.
** ENDURANCE sensors with cell constant of 1.0/cm may be used for conductivity up to
20,000 µS/cm with linearity equal to or better than 2%.
SENSOR CHOICE GUIDELINES
The Model 54eC is compatible with both contacting and inductive conductivity sensors. The best sensor for an
application depends on many factors, among them are the conductivity to be measured, the compatibility of the
sensor's wetted materials with the process chemicals and conditions, and the mounting arrangement. The tables
below are provided as an aid for choosing an appropriate sensor.
RECOMMENDED SENSORS:
Model 140 Retractable Conductivity
Model 141 Insertion Conductivity
Model 142 Insertion Conductivity
Model 222 Inductive Conductivity
Model 225 Inductive Conductivity
Model 226 Inductive Conductivity
Model 228 Inductive Conductivity
Model 242 Inductive Conductivity
Model 400 Screw-in Conductivity
Model 401-14 Screw-in Conductivity
Model 402 Retractable Conductivity
Model 403 Conductivity with Sanitary Fitting
Model 404 Flow Cell Conductivity
Model 400VP Screw-in Conductivity
Model 402VP Retractable Conductivity
Model 403VP Conductivity with Sanitary Fitting
Page 10
MODEL 54eA AMPEROMETRIC ANALYZER
Page 10
The Model 54eA Analyzer/Controller with the appropriate sensor monitors and controls dissolved oxygen
(ppm and ppb level), free chlorine, total chlorine, and
ozone in a variety of process liquids. The analyzer is
compatible with Rosemount Analytical series 499A
amperometric sensors for oxygen, chlorine, and
ozone; and with Hx438 and Gx448 steam sterilizable
oxygen sensors.
For oxygen measurements, an on-board pressure
sensor allows truly automatic air calibration. Simply
expose the sensor to water-saturated air. Wait until
readings are stable and press a button. The analyzer
measures temperature and barometric pressure and
automatically completes the calibration.
For free chlorine measurements, both automatic and
manual pH correction are available. pH correction is
necessary because amperometric chlorine sensors
respond only to hypochlorous acid. To measure free
chlorine (hypochlorous acid plus hypochlorite ion)
most competing instruments require an acidified sam-
ple. Acid lowers the pH and converts hypochlorite ion
to hypochlorous acid. The 54eA eliminates the need
for messy and expensive reagents by measuring the
sample pH and using it to correct the chlorine sensor
signal. If the pH is relatively constant, a fixed pH correction can be used. If the pH is greater than 7 and
fluctuates more than about 0.2 units, continuous
measurement of pH and automatic pH correction is
necessary. Corrections are valid to pH 9.5.
The 54eA analyzer fully compensates oxygen, ozone,
free chlorine, and total chlorine readings for changes
in membrane permeability caused by temperature
changes.
For pH measurements — pH is available with free
chlorine only — the 54eA features automatic buffer
recognition with stabilization check. Buffer pH and
temperature data for commonly used buffers are
stored in the analyzer. Glass impedance diagnostics
warn the user of an aging or failed pH sensor.
EASY TO USE MENU-DRIVEN INTERFACE
CALIBRATING AN OZONE OR CHLORINE SENSOR IS SIMPLE
1.100 ppm
Stabilizing . . . Wait
Abort Cont
With the cursor on “Calibrate main
sensor,” press Enter (key F4).
The analyzer starts monitoring sensor current. The Model 54eA analyzer will not accept the calibration
until readings are stable. Stability
limits are user-selectable.
Once the reading is stable, take a
grab sample of the process liquid
and use a portable test kit to determine the chlorine or ozone level.
Press Edit (key F4). Use the arrow
keys to change the reading to
match the results of the grab sample test.
Calibrate main sensor
Zero main sensor
Adjust temperature
Exit Enter
CALIBRATING A DISSOLVED OXYGEN SENSOR TAKES ONLY A FEW KEY PRESSES
Press Enter (key F4) to start the calibration.
Calibrate in air
Calibrate in process
Barometric pressure
Exit Enter
The display shows the current temperature
and barometric pressure. Press Continue
(key F3). The analyzer automatically completes the calibration.
Bar press : 760 mmHg
Temperature: 25.0°C
Press F3 to air cal
Abort Cont
1.100 ppm
Calibrate : 1.100 ppm
Exit Edit
Page 11
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MODEL 54eA AMPEROMETRIC ANALYZER
SPECIFICATIONS — OXYGEN
Measurement Range: 0-99 ppm (mg/L), 0-200%
saturation
Resolution: 0.01 ppm, 0.1 ppb for 499A TrDO
sensor
Temperature correction for membrane perme-
ability: automatic between 0 and 50°C (can be
disabled)
Calibration: automatic air calibration or calibration
against a standard instrument
Pressure sensor range: 113 to 862 mmHg (151 to
1149 mbar)
RECOMMENDED SENSORS —
OXYGEN:
Model 499A DO-54 for ppm level
Model 499A TrDO-54 for ppb level
Hx438 and Gx448 steam-sterilizable oxygen sensors
SPECIFICATIONS — FREE CHLORINE
Measurement Range: 0-20 ppm (mg/L) as Cl
2
Resolution: 0.001 ppm
Temperature correction for membrane perme-
ability: automatic between 0 and 50°C (can be
disabled)
pH Correction: Automatic between pH 6.0 and 9.5.
Manual pH correction is also available.
Calibration: against grab sample analyzed using
portable test kit.
RECOMMENDED SENSOR — FREE
CHLORINE:
Model 499A CL-01-54
SPECIFICATIONS — pH
Application: pH measurement available with free
chlorine only.
Measurement Range: 0-14 pH
Resolution: 0.01 pH
Sensor Diagnostics: Glass impedance (for broken
or aging electrode) and reference offset. Reference impedance (for fouled reference junction)
is not available.
Repeatability: ±0.01 pH at 25°C
Stability: ±0.01 pH/month, non-cumulative at 25°C
RECOMMENDED pH SENSORS:
Model 399-09-62, 399-14, and 399VP-09
See pH sensor product data sheet for complete order-
ing information.
SPECIFICATIONS — TOTAL CHLORINE
Measurement Range: 0-20 ppm (mg/L) as Cl
2
Resolution: 0.001 ppm
Temperature correction for membrane perme-
ability: automatic between 5 and 35°C (can be
disabled)
Calibration: against grab sample analyzed using
portable test kit.
RECOMMENDED SENSOR — TOTAL
CHLORINE:
Model 499A CL-02-54 (must be used with SCS 921)
SPECIFICATIONS — OZONE
Measurement Range: 0-10 ppm (mg/L)
Resolution: 0.001 ppm
Temperature correction for membrane perme-
ability: automatic between 5 and 35°C (can be
disabled)
Calibration: against grab sample analyzed using
portable test kit.
RECOMMENDED SENSOR — OZONE:
Model 499A OZ-54
Page 12
ALSO AVAILABLE FROM ROSEMOUNT ANALYTICAL —
FOUNDATION®Fieldbus Transmitters
The Model 5081 has obtained FOUNDATION Fieldbus certification and is now authorized to bear the FOUNDATION
Fieldbus registration checkmark. The Model 5081 transmitter successfully completed rigorous Fieldbus
Foundation testing, including stack communication, physical layer conformance, and user layer interoperability
testing.
Two digital communication protocols are available with Model 5081 transmitters: HART and F
OUNDATION
Fieldbus. Digital communications allows access to AMS (Asset Management Solutions). AMS can be used to set
up and configure the transmitter, read process variables, and troubleshoot problems from a personal computer
or host anywhere in the plant.
This transmitter features the latest in technology providing predictive pH sensor diagnostics and a large easy-toread display. Ideal for harsh environments, the Model 5081 is housed in a rugged enclosure and is designed to
meet NEMA 4X and NEMA 7B requirements.
Model 5081pH
pH/ORP Transmitter
• Large two-line display
shows pH or ORP
(mV) and temperature.
• Automatic two-point buffer calibration
reduces errors.
• Solution temperature compensation
allows pH adjustment for actual pH
changes with temperature.
• Continuous diagnostics monitor sensor performance and warn the user of
impending problems.
Model 5081A
Amperometric
Transmitter
• Measures dissolved
oxygen (ppm and
ppb level), free chlorine, total chlorine, and ozone.
• Second input for pH sensor allows
automatic pH correction for free
chlorine measurement. No expensive reagents needed.
• Automatic buffer recognition for pH
calibration.
Model 5081C
Conductivity
Transmitter
• Large two-line display shows conductivity and temperature.
• High loop accuracy (within ±1% of
actual conductivity and resistivity
measurement).
Credit Cards for U.S. Purchases Only.
The right people,
the right answers,
right now.
ON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE
http://www.raihome.com
Specifications subject to change without notice.
Emerson Process Management
Liquid Division
2400 Barranca Parkway
Irvine, CA 92606 USA
Tel: (949) 757-8500
Fax: (949) 474-7250
http://www.raihome.com
© Rosemount Analytical Inc. 2005
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