Emerson Rosemount Analytical RDO User manual

Model RDO
RDO®Optical Dissolved Oxygen
Analyzer and Sensor
RDO is a registered trademark of In-Situ Inc. All rights reserved.
Manual
51-RDO
April 2010

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No. Title Page
Section 1: Installation..................................................................................................................4
1.1 Box Contents..................................................................................................................................4
1.2 Optional Mounting Kit.....................................................................................................................4
1.3 Mounting Options ...........................................................................................................................4
1.3.1 Analyzer Dimensions .....................................................................................................................4
1.3.2 Pole Mounting ...............................................................................................................................5
1.3.3 Wall Mounting Using Mounting Tabs .............................................................................................6
1.3.4 Wall Mounting With User-supplied Screws and Hardware ...........................................................6
1.4 Installing Dome Connectors and Plugs .........................................................................................7
Section 2: Wiring..........................................................................................................................8
2.1 Electro-static Discharge (ESD) Recommendations ......................................................................8
2.2 Customer-supplied Electrical Equipment.......................................................................................8
2.3 Ensuring Good Electrical Connections..........................................................................................8
2.4 AC Power and High Voltage Relay Connections ..........................................................................8
2.5 2.5 External Power, Output, and Low Voltage Relay Connections ..............................................9
2.6 RDO Probe Wiring .......................................................................................................................10
Section 3: Placing the RDO Probe in Service ........................................................................11
3.1 Unpacking.....................................................................................................................................11
3.2 Assembling the Probe ..................................................................................................................11
3.3 Installing the Probe.......................................................................................................................11
Section 4: Display and Operation ............................................................................................12
4.1 Display and Keypad .....................................................................................................................12
4.2 Using the View Function and Customizing the Display ..............................................................12
Section 5: Programming the Analyzer ....................................................................................13
5.1 Initial Configuration ......................................................................................................................13
5.2 Configuring the RDO Probes.......................................................................................................13
5.2.1 Options (Barometer, Salinity, and Calibration Interval) ...............................................................13
5.2.2 Parameters (Concentration, Temperature, Saturation, and Partial Presssure)..........................14
5.2.3 Replacing a Probe .......................................................................................................................15
5.2.4 Deleting a Probe ..........................................................................................................................15
5.2.5 Adding a Probe ............................................................................................................................15
5.3 Configuring the Analyzer..............................................................................................................15
5.4 Configuring Outputs .....................................................................................................................16
5.4.1 Current Loops...............................................................................................................................16
5.4.2 Alarm Relays................................................................................................................................16
5.5 Changing the Date and Time.......................................................................................................16
5.6 Changing the Appearance of the Screeens ................................................................................17
5.6.1 Locking the Display......................................................................................................................17
5.6.2 Changing the Display Contrast....................................................................................................17
5.6.3 Changing the Language ..............................................................................................................17
5.7 Changing Power Settings ............................................................................................................17
5.8 Settting the Polling (Update) Interval...........................................................................................17
5.9 RS485 Communications ..............................................................................................................17
5.9.1 Settting the device address for the analyzer...............................................................................17
5.9.2 Settting RS485 parameters for the analyzer...............................................................................17
5.10 Settting Security Codes ...............................................................................................................17
5.11 Defaults ........................................................................................................................................17
5.12 Placing the Output and Relays In Hold .......................................................................................18
5.11 Diagnostics...................................................................................................................................18
TABLE OF CONTENTS
MODEL RDO TABLE OF CONTENTS

4
No. Title Page
Section 6: Calibrating the Analyzer .........................................................................................19
6.1 Calibrating the RDO Optical DO Probe.......................................................................................19
6.1.1 Calibration Options.......................................................................................................................19
6.1.2 One-Point Calibration (100% Saturation) ....................................................................................19
6.1.3 Two-Point Calibration (100% and 0% Saturation).......................................................................20
6.1.4 Concentration Calibration ............................................................................................................21
Section 7: Maintenance.............................................................................................................22
7.1 Analyzer........................................................................................................................................22
7.1.1 Cleaning the analyzer enclosure .................................................................................................22
7.1.2 Replacing the desiccant...............................................................................................................22
7.1.3 Replacing the clock battery..........................................................................................................22
7.2 RDO Probe...................................................................................................................................22
7.2.1 Cleaning the Sensing Cap...........................................................................................................22
7.2.2 Cleaning the Probe Body.............................................................................................................22
7.2.3 Cleaning the optical window ........................................................................................................22
7.2.4 Replacing the Sensing Cap .........................................................................................................22
TABLE OF CONTENTS
MODEL RDO TABLE OF CONTENTS
Copyright © 2010 Emerson Process Management. All rights reserved.
This document contains proprietary information which is protected by copyright. No part of this document may be
photocopied, reproduced, or translated to another language without the prior written consent of Emerson Process
Management.
Mailing and Shipping Address
Emerson Process Management
Rosemount Analytical Inc.
2400 Barranca Parkway
Irvine, CA 92606 USA
Tel: [phone]
Fax: [phone]
Internet: www.raihome.com
Support Line: 800-854-8257 (US & Canada)
The information in this document is subject to change without notice. Emerson Process Management has made a reason-
able effort to be sure that the information contained herein is current and accurate as of the date of publication.
Emerson Process Management makes no warranty of any kind with regard to this material, including, but not limited to, its
fitness for a particular application. In-Situ will not be liable for errors contained herein or for incidental or consequential
damages in connection with the furnishing, performance, or use of this material.
In no event shall Emerson Process Management be liable for any claim for direct, incidental, or consequential damages
arising out of, or in connection with, the sale, manufacture, delivery, or use of any product.

5
1.1 BOX CONTENTS
Remove the analyzer from the shipping box. The ship-
ping box should contain:
• Analyzer (1)
• Enclosure plugs (5)
• Dome connectors (3)
• O-rings (6)
• Large lock nuts (6)
• Sealed desiccant pack (1) that will be placed in the
installed analyzer.
• Opened desiccant pack (1) that protected the instru-
ment during shipping. Discard after opening the
analyzer.
1.2 OPTIONAL MOUNTING KIT
The mounting kit (PN R0087560) contains the following:
• Two stainless mounting brackets
• Two 1½-3½ in-diameter hose clamps
• One package containing mounting tabs (4), nuts (4),
and screws (4)
• DIN rail mounting brackets (2)
The nuts and screws supplied with the mounting tabs
are suitable for use with the mounting brackets.
MODEL RDO INSTALLATION
SECTION 1.0
INSTALLATION
1.3 MOUNTING OPTIONS
1.3.1 Analyzer Dimensions
• Figure 1-1 calls out the analyzer dimensions with
the lid closed.
• Figure 1-2 shows the depth dimensions of the ana-
lyzer. When wall or panel mounting, make sure to
allow adequate space for opening the enclosure
door or making electrical connections.
DANGER
Only properly trained and qualified personnel
should install the RDO analyzer described in this
manual. This instrument should be installed for use
in nonhazardous locations only.
L'installation de l'appareil "RDO" décrite dans le
guide d'utilisateur doit impérativement être réalisée
par des personnes qualifiées. L'installation de cet
appareil est seulement prescrite pour des emplace-
ments sans risques.
DANGER
FIGURE 1-1. Analyzer dimensions with lid closed
FIGURE 1-2. Side view dimensional drawings

MODEL RDO INSTALLATION
6
FIGURE 1-4. Attaching the
mounting brackets FIGURE 1-5. Back and side view of pipe-mounted analyzer
1.3.2 Pipe Mounting
1. Remove the four nuts and four screws from the
mounting kit.
2. Open the enclosure and drop one nut into each
drilled corner of the box (Figure 1-3).
3. Use a screwdriver to push the nut down and set it in
place (Figure 1-3).
4. Orient the two brackets on the back of the enclosure
so that the flanges on the brackets point downward
(Figure 1-4).
5. Attach the mounting brackets to the enclosure using
two screws for each bracket. Make sure that the
screws properly thread into the nuts you seated in
steps 2 and 3.
6. Place two hose clamps over the mounting pipe and
tighten them until they almost secure.
7. Place the flanges from the mounting bracket into
each of the hose clamps (Figure 1-3).
8. Tighten the hose clamps until the analyzer is secure
on the pipe.
FIGURE 1-3. Placing the nut in the enclosure

7
MODEL RDO INSTALLATION
1.3.3 Wall Mounting Using Mounting Tabs
The optional mounting kit contains a set of wall mount-
ing hardware that includes four screws, nuts, and tabs
for mounting the analyzer to a wall or panel. Follow the
instructions included with the mounting tab hardware to
attach the tabs (Figure 1-6).
1.3.4 Wall Mounting with User-supplied Screws and
Hardware
You can supply your own mounting hardware and
attach the analyzer to a wall. Figure 1-3 indicates the
placement of the nut. Use a screw that is best suited for
your wall material (Figure 1-7).
1.3.5 DIN Rail Mounting the Enclosure
1. Open the enclosure and drop one #6 screw into
each drilled corner of the box (Figure 1-8).
2. Use a long screwdriver to push the screw through
the back of the enclosure (Figure 1-8).
3. Place the DIN clip on the top of the enclosure with
the orientation shown in Figure 1-9.
4. Use a long screwdriver to tighten the screw to the
clip.
5. Repeat steps 2-4 for the remaining screw and clip.
6. Mount on a DIN rail.
FIGURE 1-6. Back view of analyzer with tabs
FIGURE 1-7. Back view of analyzer
Pre-drilled holes (0.15 in diam.)
FIGURE 1-8. Placing the screw in the enclosure
FIGURE 1-9. Securing the screw to the DIN clip

8
MODEL RDO INSTALLATION
FIGURE 1-10. Attached plug (left) and attached dome connector (right)
Lock nut
Large o-ring
Port plug
Lock nut
Large o-ring
Dome connector
1.4 INSTALLING DOME CONNECTORS
AND PLUGS
Install dome connectors and plugs as shown in Figure
1-10.
1. Place the O-ring over the threaded end of the con-
nector or plug.
2. Screw the connector or plug into the opening until it
is snug. Then tighten an additional 1/2 turn. Do not
overtighten.
3. Place the lock nut concave side down on the
threads and using a screwdriver blade and mallet,
tighten the lock nut until there is approximately one
thread showing.
4. Thread cable through the dome connectors and
secure by tightening the nut to about 15 in-lbs of
torque. Confirm that cable does not slide or wiggle
after the nut has been tightened. Leave sufficient
cable inside the enclosure to make secure connec-
tions without placing stress on the cable.

9
MODEL RDO WIRING
2.1 ELECTROSTATIC DISCHARGE (ESD)
RECOMMENDATIONS
• Before making wiring connections or
touching circuit boards or other internal
components, discharge any static elec-
tricity from your body by touching a grounded metal
object.
• When making wiring connections, make sure to
remain properly grounded by wearing an ESD wrist
strap or similar device.
2.2 CUSTOMER-SUPPLIED ELECTRICAL
EQUIPMENT
The user must supply the following:
• 18-12 AWG wire for electrical connections using
conduit or 100-240 VAC power supply
• 24-12 AWG cable for connecting relays and PLC
devices
• A 100-240 VAC or 9-36 VDC source with over cur-
rent/disconnect protection for hard-wired locations
using conduit.
• Approved suitable wiring for cord-connected plug
and socket locations.
SECTION 2.0
WIRING
DANGER
Only properly trained and qualified personnel
should install the RDO analyzer described in this
manual. This instrument should be installed for use
in nonhazardous locations only.
DANGER
2.3 ENSURING GOOD ELECTRICAL
CONNECTIONS
To ensure that all sensors and power sources function
properly, make sure that:
• Each individual wire is stripped and tinned to ¼ in.
• Each wire is tightly screwed into the terminal strip.
• Each wire is touching the terminal strip. If the plas-
tic wire jacket is clamped into the terminal strip, con-
nections will not be made.
• Clip or cap any unused wires.
DANGER
Make sure that power to the instrument is discon-
nected before making any wiring connections.
DANGER
Débrancher toute alimentation à l'appareil avant de
connecter les fils.
DANGER
Do not connect low voltage circuits (<50 V) to the
terminal connectors on the AC board!
DANGER
Ne pas connecter des circuits basse tension
(moins de 50 V) aux bornes de connexion sur la
carte électronique de secteur (courant alternatif)!
2.4 AC POWER AND HIGH VOLTAGE
RELAY CONNECTIONS
L'installation de l'appareil "RDO" décrite dans le
guide d'utilisateur doit impérativement être réalisée
par des personnes qualifiées. L'installation de cet
appareil est seulement prescrite pour des emplace-
ments sans risques.
CONNEXIONS AUX COURANT SECTEUR /
ALTERNATIF
CONNEXIONS AUX RELAIS

Terminal Description NA Color Euro Color
L Live Black Brown
N Neutral White Blue
Protective Earth Green Green & Yellow
10
MODEL RDO WIRING
FIGURE 2-1. AC circuit board
and terminal connections
The AC power board is located under the metal shield on
the right side of the enclosure. The terminal strip on the
board accommodates the AC power connections as well
as two high voltage relay connections. See Figure 2-1.
1. Remove the front cover of the enclosure.
2. Remove the metal AC power board cover.
3. Thread the power cable and relay wires (if needed)
through the dome fittings nearest the power board.
4. Using the green screw, connect the green earth wire
of the power cable to the metal frame in the bottom
of the enclosure. See Figure 2-2. A green wire con-
necting the metal frame to the terminal strip should
already be in place.
Terminal Description
COM Common
NC1 or NC2 Normally closed
NO1 or NO2 Normally open
FIGURE 2-2. Connect the ground wire to the
metal frame using the green screw.
5. Connect the live and neutral power wires to the L and
N terminals. See Figure 2-1.
6. Connect relay wires (if required) to the terminal
strip. See Figure 2-1.
7. Replace the metal AC power board cover.
8. Replace the front cover of the enclosure. Be sure
the desiccant pack (PN R0087630) is present.

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MODEL RDO WIRING
2.5 ANALOG AND DIGITAL OUTPUTS AND
LOW VOLTAGE RELAY CONNECTIONS
Terminal Description
GND Signal ground
485A- RS485 negative
485A+ RS485 positive
POWER 24VDC
3. Wire the analog current loops to the 4/20 mA termi-
nals. Each analog output loop must be powered sep-
arately. The maximum voltage at the terminal must not
exceed 36VDC. The minimum voltage is 9VDC.
Connect the shield to the green earth ground screw.
See Figure 2-4. Do not ground the device at both ends
of the cable.
Terminal Description
LOOP2- To negative end of device
LOOP2+ To positive end of device
LOOP1- To negative end of device
LOOP1+ To positive end of device
GREEN EARTH Cable shield
1. Remove the front cover of the enclosure.
2. Connect the digital output (Modbus/RS485) to the
PLC terminals (see Figure 2-3). There is no con-
nection to the GND and POWER terminals.
However, the analyzer supplies 24VDC to the GND
and POWER terminals, which can be used to power
external accessories.
FIGURE 2-3. Input/Output board
Requires 24-12 AWG cable.
Requires stripped and tinned
RuggedCable®system
Requires stripped and tinned
RuggedCable®system
Requires 24-12 AWG cable
Requires 24-12 AWG cable
Requires 24-12 AWG cable
DANGER
Make sure that power to the instrument is discon-
nected before making any wiring connections.
DANGER
Débrancher toute alimentation à l'appareil avant de
connecter les fils.
DANGER
The maximum voltage that can be applied across
the loop terminals is 36 V.
DANGER
Ne pas connecter des circuits basse tension
(moins de 50 V) aux bornes de connexion sur la
carte électronique de secteur (courant alternatif)!
CONNEXIONS POUR AUTOMATE
PROGRAMMABLE INDUSTRIEL
DANGER
Do not connect high voltage circuits (>50 V) to the
terminal connectors on the I/O board!
SORTIES DE COURANT DE BOUCLE
DANGER
Ne pas connecter des circuits a haute tension (plus
de 50 V) aux bornes de connexion sur la carte
entrées/sorties!

12
Terminal Description
GND Signal ground
COM1 or COM2 Common
NC1 or NC2 Normally closed
NO1 or NO2 Normally open
FIGURE 2-4. Earth ground screws for
analog outputs and sensors.
4. Make the low voltage relay connections. Do not apply
more than 50 V across the low voltage relays.
5. Replace the front cover of the enclosure. Be sure the
desiccant pack (PN R0087630) is present.
1. Remove the front cover of the enclosure.
2. Wire the RDO probe to the PROBE A or PROBE B
terminals on the input/output card.
3. Connect shield wire to the green earth ground
screw. See Figure 2-4.
4. Cut off or cap the unused brown and white wires.
5. Replace the front cover of the enclosure. Be sure
the desiccant pack (PN R0087630) is present.
Terminal Description Wire color
GND Signal ground Black
485A- RS485 negative Green
485A+ RS485 positive Blue
POWER Input DC/Output AC Red
GREEN EARTH Shield Shield
DANGER
Make sure that power to the instrument is discon-
nected before making any wiring connections.
DANGER
Débrancher toute alimentation à l'appareil avant de
connecter les fils.
CONNEXIONS POUR LE RACORD
DES SONDES
2.7 TIGHTEN DOME CONNECTORS
The dome connectors installed in section 1.4 must be
tightened securely after the sensor and electrical cables
have been routed through them. The dome connectors
are not meant to be weight bearing. Be sure that:
• The cable does not slide or wiggle after the nut has
been tightened.
• Sufficient cable has been threaded through the con-
nector so that secure wiring connections remain
secure.
• There is no weight or force from water pulling on the
cable.
2.6 RDO PROBE WIRING
MODEL RDO WIRING

13
MODEL RDO PLACING PROBE IN SERVICE
SECTION 3.0
PLACING THE RDO PROBE IN SERVICE
3.1 UNPACKING
Remove the probe and sensing cap from the box. The
sensing cap is shipped in a small plastic cylinder in-
serted in a hole in the internal cardboard packaging.
3.2 ASSEMBLING THE PROBE
1. Unscrew the nose cone from the probe and remove
the red protective dust cap. Save the dust cap for
later use. Make sure the O-ring grooves are dry and
the O-rings are not rolled or pinched.
2. Remove the RDO sensing cap from its shipping/
storage sleeve. The operating lifetime of the cap is
one year after the first reading has been taken.
Install the cap by the date printed on the packaging.
NOTE Keep the cap in its sealed packaging
until you are ready to install it. Install promptly.
Avoid allowing moisture, including humidity,
inside the cap.
NOSE
CONE
DUST
CAP
3. Align the arrow on the cap with the index mark on
the probe and firmly press the cap onto the probe,
without twisting, until it seals.
4. Reattach the nose cone.
NOTE: The nose cone must be in place when-
ever the probe is submerged in water.
5. Wire the probe to the analyzer. See section 2.6.
NOTE If you are replacing an existing RDO
probe with a new probe, the analyzer may not
recognize the new probe. If this is the case, the
main display will show the “probe not talking”
icon (letter A or B in reverse video). To estab-
lish communication, follow the procedure
under Replace Probe in section 5.2.3.
3.3 INSTALLING THE PROBE
The RDO dissolved oxygen probe can be submerged
in basins or ponds. The nose cone and the thermistor
(the small metal disc on the side of the sensor about
1/8 inch (3 mm) above the nose cone) must be com-
pletely submerged. Use the 1 1/4 inch FNPT fitting at
the rear of the probe to attach it to a pipe. Be sure the
connection is watertight and the upper end of pipe is
closed to keep out water. Do not allow the back end
of the sensor to get wet.

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15
MODEL RDO DISPLAY AND OPERATION
SECTION 4.0
DISPLAY AND OPERATION
4.1 DISPLAY AND KEYPAD
Figure 4-1 shows the keypad and display window.
The Up/Left Arrow key has three functions: it moves the
cursor to the left; it moves the cursor up a list; it increas-
es the value of a digit. The Down/Right Arrow key has
three functions: it moves the cursor to the right; it moves
the cursor down a list; it reduces the value of a digit. The
left and right function keys perform the operation shown
in the screen immediately above the key.
The main display has two lines. The measurement from
probe A appears in the top line, and the measurement
from probe B appears in the bottom line. If no probe B
is connected, a row labeled “C” appears. References to
Probe C refer to the analyzer, which is called the
ConTROLL Pro. See Figure 4-2.
Command Command
Left
function
key
Right
function
key
Up/Left
arrow key
Down/Right
arrow key
Menu View
A 7.42 mg/L
B 5.395 psi
FIGURE 4-2. Two-line display.
Lines labeled A and B refer to probes A and B.
C refers to measurements made by the analyzer.
See also section 4.2.
Menu View
A 7.42 mg/L
C838.7mbar
Table 4-1 Display icons and their descriptions
4.2 USING THE VIEW FUNCTION AND
CUSTOMIZING THE DISPLAY
The view function allows the user to the view parameters
measured by each probe and the analyzer. It also allows
the user to customize the display.
1. Select the View option. An arrow will point to the first
line in the display.
2. Select View again to move the arrow to the second
line in the display.
3. With the arrow pointing at any line, use the Up and
Down arrow keys to cycle through the parameters
being measured by the probes and analyzer.
3. To customize the display, move the arrow to the
desired line and press the Up or Down arrow key
until the desired measurement appears. Then select
View to move to the next line.
FIGURE 4-1. Keypad and display
!
!
Error with parameter
Calibration stabilizing
Calibration nominally stable
View
View locked
View is not locked
Factory calibration for RDO cap has expired
User calibration has expired, based on the
“Calibrate Interval¨.
Probe A not talking
Probe B not talking
Relay 1 active
Relay 2 active
Table 4.1 shows the icons used in the display.

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17
MODEL RDO PROGRAMMING THE ANALYZER
SECTION 5.0
PROGRAMMING THE ANALYZER
5.1 INITIAL CONFIGURATION
Enter the following information upon first use or any-
time after you have restored the default settings.
1. Choose English, Spanish, or French. Use the arrow
keys to move up or down to the appropriate lan-
guage. Select Enter.
2. Use the arrow keys to adjust the contrast level.
Select Enter.
3. Enter the time zone.
a. Refer to Table 5-1. Choose the appropriate time
zone and find the corresponding UTC value
(Universal Time, Coordinated, formerly GMT).
Table 5-1 Selected regions and their time in UTC
b. Use the Up/Left Arrow key to enter a positive or
negative value.
c. Press the Down/Right arrow key to move the
appropriate numeric position.
d. Use the Up/Left arrow key to enter the correct
numeric value. Repeat for additional digits as
needed.
e. Select Enter.
4. Enter the date using the Up/Left arrow key. Select
Enter.
5. Enter the time using the Up/Left arrow key. Select
Enter.
6. The Add Probe A screen appears. The name of the
probe wired in this position also appears. Select En-
ter to configure this probe.
7. The Add Probe B screen appears. The name of the
probe wired in this position also appears. If there is
no probe B, the display will show “Probe not con-
nected”. Select Enter to configure this probe if it ex-
ists, or to proceed to the next screen if it does not.
8. The main display appears.
9. For additional information on setting up the probes,
see Sections 5.3.3 and 5.3.4.
5.2 MENU TREE
The menu tree for the analyzer is shown in Figure 5-1.
5.3 CONFIGURING THE RDO PROBES
Configure the RDO probes one at a time. There are
four submenus available for each probe: Options,
Parameters, Replace Probe, and Delete Probe.
5.3.1 Options (Barometer, Salinity, and Calibration
Interval)
Three settings can be made under Options.
• Barometer. The analyzer has a built-in pressure sen-
sor to measure barometric pressure, which is needed
for percent saturation (air) calibration. The use of auto-
matic barometric pressure is strongly recommended.
• Salinity. Salinity is an important setting if dissolved
oxygen is being measured in brackish water and
percent saturation (air) calibration is being used to
calibrate the probe.
• Calibration Interval. The analyzer can be program-
med to remind the user when a calibration is due.
Region UTC Value (± numeric value)
Australia Northern Territory: +9.5
Australia Lord Howe Island: +10.5 (DST +11)
Australia New South Wales: +10 (DST +11)
Australia Queensland: +10
Australia Victoria: +10 (DST +11)
Australia Australian Cap Terr: +10 (DST +11)
Australia South: +9.5 (DST +10.5)
Australia Tasmania: +10 (DST +11)
Australia Western: +8
Canada Central: -6 (DST -5)
Canada Eastern: -5 (DST -4)
Canada Mountain: -7 (DST -6)
Canada Yukon & Pacific: -8 (DST -7)
Canada Atlantic: -4 (DST -3)
Canada Newfoundland: -3.5 (DST -2.5)
England: 0 hours (DST +1)
USA Puerto Rico: -4
USA Central: -6 (DST -5)
USA Eastern: -5 (DST -4)
USA Mountain: -7 (DST -6)
USA Arizona: -7
USA Indiana East: -5
USA Pacific: -8 (DST -7)
USA Alaska: -9 (DST -8)
USA Aleutian: -10
USA Hawaii: -10

18
MODEL RDO PROGRAMMING THE ANALYZER
FIGURE 5-1. Menu Tree
1. Select Menu, then Settings, then Probes. Select
RDO Probe A or RDO Probe B, if it is present, then
Select Options.
2. Scroll to Barometer and select it. The choices are
Fixed and Automatic. If you choose Fixed, enter the
barometric pressure here before you start percent
saturation (air) calibration. If you choose Automatic,
the analyzer will automatically measure the baro-
metric pressure and use it during percent saturation
(air) calibration.
3. Scroll to Salinity and select it. Choose Fixed.
Automatic is not available. Enter the salinity of the
process water in PSU (practical salinity units in parts
per thousand).
4. Scroll to Calibration Interval. Select a calibration
interval. The analyzer will display a message when
the next calibration is due.
5.3.2 Parameters (Concentration, Temperature,
Saturation, and Partial Pressure)
Each RDO probe can measure concentration, temper-
ature, percent saturation, and partial pressure. There
are four settings to make for each parameter.
• Enable or disable the measurement. If the meas-
urement is enabled, the probe will make the meas-
urement, and the analyzer will display the result. If
the measurement is disabled, the probe will not
make the measurement.
• Select units in which measurement results will be
displayed.
• Set the display resolution.
• Set a sentinel. The sentinel is the value that will be
displayed when the probe returns an error condi-
tion for the measurement.
1. Select Menu, then Settings, then Probes. Select
RDO Probe A or RDO Probe B, if it is present, then
select Parameters.
2. Select Concentration.
a. Press the Select key to toggle between enable
and disable. If the box is checked, concentration
has been selected.
b. Scroll to Units and select it. Choose between
mg/L and ug/L.
c. Scroll to Resolution. Press Select repeatedly to
change the resolution. The setting will be stored

19
MODEL RDO PROGRAMMING THE ANALYZER
as soon as you press any key to leave.
d. Scroll to Sentinel and press Select. Use the
arrow keys to change the setting.
3. Select Temperature.
a. Press the Select key to toggle between enable
and disable. If the box is checked, temperature
has been selected.
b. Scroll to Units and select it. Choose between °C
and °F.
c. Scroll to Resolution. Press Select repeatedly to
change the resolution. The setting will be stored
as soon as you press any key to leave.
d. Scroll to Sentinel and press Select. Use the
arrow keys to change the setting.
4. Select Saturation.
a. Press the Select key to toggle between enable
and disable. If the box is checked, percent satu-
ration has been selected.
b. Scroll to Units. There is no selection to make.
The units are % saturation.
c. Scroll to Resolution. Press Select repeatedly to
change the resolution. The setting will be stored
as soon as you press any key to leave.
d. Scroll to Sentinel and press Select. Use the
arrow keys to change the setting.
5. Select Pressure.
a. Press the Select key to toggle between enable
and disable. If the box is checked, partial pres-
sure has been selected.
b. Scroll to Units. There is no selection to make.
The units are torr.
c. Scroll to Resolution. Press Select repeatedly to
change the resolution. The setting will be stored
as soon as you press any key to leave.
d. Scroll to Sentinel and press Select. Use the
arrow keys to change the setting.
5.3.3 Replacing a Probe
If you replace the RDO probe with another RDO probe,
use Replace Probe to transfer the existing setting to
the new probe.
1. Disconnect the existing RDO probe and replace it
with the new probe. See Section 3.6.
2. Select Menu, then Settings, then Probes. Select
RDO Probe A or RDO Probe B, if it is present, then
Select Replace Probe. The analyzer will automati-
cally configure the new probe.
3. Press and hold Back to return to the main display.
5.3.4 Deleting a Probe
If you plan to permanently remove a probe, follow the
steps below.
1. Select Menu, then Settings, then Probes.
2. Highlight the probe you wish to delete and press
Select.
3. Scroll to Delete Probe.
4. Press Select, then Enter to confirm.
5. The probe has been deleted from the configuration.
5.3.5 Adding a Probe
1. Select Menu, then Settings, then Probes.
2. Select Probe A or B, then Add Probe.
3. The Add Probe screen appears with the name of the
sensor that is wired in this position. If there is no
Probe B, the display will say no probe connected.
Select Enter to add the probe.
5.4 CONFIGURING THE ANALYZER
The analyzer (called the Con TROLL PRO®) measures
two parameters, barometric pressure and temperature.
There are four settings to make for each parameter.
• Enable or disable the measurement. If the meas-
urement is enabled, the analyzer will make the
measurement and will display the result. If the
measurement is disabled, the analyzer will not
make the measurement.
• Select units in which measurement results will be
displayed
• Set the display resolution
• Set a sentinel. The sentinel is the value that will be
displayed when the analyzer returns an error condi-
tion for the parameter.
1. Select Menu, then Settings, then Probes. Select
Con TROLL PRO.
2. Select Barometer.
a. Press the Select key to toggle between enable
and disable. If the box is checked, barometric
pressure has been selected.
b. Scroll to Units and select it. Choose the desired
units for barometric pressure.
c. Scroll to Resolution. Press Select repeatedly to
change the resolution. The setting will be stored
as soon as you press any key to leave.
d. Scroll to Sentinel and press Select. Use the
arrow keys to change the setting.
Con TROLL PRO is a registered trademark of In-Situ Inc. All rights reserved.

20
MODEL RDO PROGRAMMING THE ANALYZER
3. Select Temperature
a. Press the Select key to toggle between enable
and disable. If the box is checked, temperature
has been selected.
b. Scroll to Units and select it. Choose the desired
units for temperature.
c. Scroll to Resolution. Press Select repeatedly to
change the resolution. The setting will be stored
as soon as you press any key to leave.
d. Scroll to Sentinel and press Select. Use the
arrow keys to change the setting.
5.5 CONFIGURING OUTPUTS
Outputs refer to the analog current loops and the alarm
relays. Configure the probes before configuring the
outputs.
5.5.1 Current Loops
There are six settings to make:
• Enable/Disable: Choose to enable or disable the
output loop.
• Parameter: Assign a probe and parameter to the
output.
• 4 mA Value: Enter the value to correspond with 4
mA.
• 20 mA Value: Enter the value to correspond with 20
mA.
• 4 mA Trim: Adjust the 4 mA value of the analyzer to
achieve a loop current of 4 mA.
• 20 mA Trim: Adjust the 20 mA value of the analyzer
to achieve a loop current of 20 mA.
1. Select Menu, then Settings, then Outputs, then
Current Loops.
2. Choose current loop 1 or current loop 2.
3. Scroll to Enable/disable and select it. Press the
Select key to toggle between enable and disable. If
the box is checked, the current loop has been
enabled.
4. Scroll to Parameter and select it. Scroll through the
list of probes and measurements. A is probe A, B is
probe B, and C is the analyzer.
5. Scroll to 4 mA value and select it. Use the arrow
keys to change the setting.
6. Scroll to 20 mA value and select it. Use the arrow
keys to change the setting.
7. Scroll to 4 mA Trim: Use the arrow keys to adjust the
loop current to 4 mA.
8. Scroll to 20mA Trim: Use the arrow keys to adjust
the loop current to 20 mA.
5.5.2 Alarm Relays
There are six settings to make.
• Enable/Disable: Choose to enable or disable the relay.
• Mode: Choose High Alarm or Low Alarm.
• Parameter: Assign a probe and a parameter to the
relay.
• Setpoint: See Figure 5-2.
• Deadband: See Figure 5-2.
• Test: Manually energize or de-energize a relay to
test it.
1. Select Menu, then Settings, then Outputs, then
Relays.
2. Choose Relay 1 or Relay 2. For each relay there is
a high voltage and low voltage relay. Configuring the
relay configures both the high voltage and low volt-
age relay.
3. Scroll to Enable/disable and select it. Press the
Select key to toggle between enable and disable. If
the box is checked, the relay has been enabled.
Time
Parameter value
Relay ON
Relay OFF
High Alarm
Deadband
Setpoint
FIGURE 5-2. High and low alarm relay action
Time
Parameter value
Relay ON
Relay OFF
Low Alarm
Deadband
Setpoint