Thermo Scientific Orion Versa Star Pro User manual

Orion Versa Star Pro
Electrochemistry Meters
UserManual
68X000791 Revision B • May 2018

Table of Contents
Chapter 1....................................................................................................................... 6
Meter Introduction ........................................................................................................ 6
Meter Overview............................................................................................................................6
Packing List .................................................................................................................................7
Intended Use ...............................................................................................................................7
Chapter 2....................................................................................................................... 8
Meter Basics ................................................................................................................. 8
Using the Universal Power Adapter.............................................................................................8
Attaching the Electrode Stand .....................................................................................................9
Meter Connections.....................................................................................................................10
Meter Keypad ............................................................................................................................11
Function Keys ..................................................................................................................12
Numeric Keypad...............................................................................................................12
Measurement Modules ..............................................................................................................13
Module Measurement Capabilities...................................................................................13
Preconfigured Meter and Module Options........................................................................13
Inserting and Removing Modules.....................................................................................14
Module Removal ..............................................................................................................14
Module Connections.........................................................................................................15
Measurement Display Options...................................................................................................16
Single, Dual or Multiple Channel Displays........................................................................16
Measurement Display Examples......................................................................................18
Additional Measurement Display Icons ............................................................................19
pH Electrode Condition Icon.............................................................................................20
Customizing the Display...................................................................................................21
Meter and Module Maintenance ................................................................................................21
Chapter 3..................................................................................................................... 22
Meter Setup Menus..................................................................................................... 22
Main Setup Menu.......................................................................................................................22
Channel 1-4 Setup Menus .........................................................................................................24
Method Menu ...................................................................................................................26
Mode Menu ......................................................................................................................28
Temperature Menu...........................................................................................................29
Instrument Settings Setup Menu................................................................................................32
Log View Menu..........................................................................................................................34
Data Log...........................................................................................................................34
Calibration Log.................................................................................................................35
Diagnostics Menu ......................................................................................................................36
System Access Menu ................................................................................................................37
Enabling the System Access Feature ..............................................................................38
Logging into the Administrator Account............................................................................42
Logging into Existing User Account..................................................................................43
Logging Out of Existing User Account..............................................................................43
Chapter 4..................................................................................................................... 44
pH, pH/ISE and pH/LogR Measurement Modules..................................................... 44

Connecting Electrodes to the Module........................................................................................44
Channel 1-4 Setup Menus .........................................................................................................47
Mode Menus for pH, mV, Relative mV, ORP and ISE......................................................47
pH Calibration............................................................................................................................52
pH Calibration Editing.......................................................................................................52
Relative mV Calibration .............................................................................................................54
ORP Calibration.........................................................................................................................55
ISE Calibration (pH/ISE Module Only).......................................................................................56
ISE Calibration Editing .....................................................................................................56
Temperature Calibration............................................................................................................57
ATC Probe Temperature Calibration................................................................................57
Manual Temperature Entry...............................................................................................58
LogR Temperature Calibration (pH/LogR Module Only) ..................................................59
Incremental Techniques (pH/ISE Module Only).........................................................................61
Single Known Addition .....................................................................................................62
Double Known Addition....................................................................................................64
Single Known Subtraction ................................................................................................66
Double Known Subtraction...............................................................................................68
Single Analate Addition ....................................................................................................70
Single Analate Subtraction...............................................................................................72
Chapter 5..................................................................................................................... 74
Conductivity Measurement Module .......................................................................... 74
Connecting Electrodes to the Module........................................................................................74
Channel 1-4 Setup Menus .........................................................................................................75
Mode Menus for Conductivity, TDS, Salinity and Resistivity ............................................75
Conductivity Calibration .............................................................................................................80
Automatic or Direct Conductivity Calibration....................................................................80
Cell Constant Entry (Manual Conductivity Calibration).....................................................82
Conductivity Verification Procedure...........................................................................................83
Chapter 6..................................................................................................................... 84
RDO/DO Measurement Module.................................................................................. 84
Connecting Electrodes to the Module........................................................................................84
Channel 1-4 Setup Menus .........................................................................................................85
Mode Menus for Dissolved Oxygen .................................................................................85
RDO Electrode Information ..............................................................................................86
Dissolved Oxygen Calibration....................................................................................................87
Water Saturated Air Calibration........................................................................................87
Air Saturated Water Calibration........................................................................................88
Manual (Winkler) Calibration............................................................................................88
Set Zero Calibration .........................................................................................................89
Chapter 7..................................................................................................................... 90
Meter Measurements.................................................................................................. 90
Measurement Overview.............................................................................................................90
Measurement Read Types ........................................................................................................92
Auto-Read........................................................................................................................92
Timed ...............................................................................................................................92
Single-Shot.......................................................................................................................93
Continuous.......................................................................................................................93
Measurement Procedure ...........................................................................................................94

Measurement Tip –Using the Electrode Holder...............................................................95
Chapter 8..................................................................................................................... 96
Data Transfer and Software Updates........................................................................ 96
Data Transfer Settings...............................................................................................................96
Installing the Versa Star USB Driver Software...........................................................................98
Meter Software Upgrade Procedure ..........................................................................................99
Computer and Printer Compatibility.........................................................................................101
Computer Requirements ................................................................................................101
Printer Requirements .....................................................................................................101
Versa Star Pro Meter Remote Control Protocols .....................................................................102
Remote Control Commands...........................................................................................102
Chapter 9................................................................................................................... 112
Customer Services ................................................................................................... 112
Troubleshooting Tips ...............................................................................................................113
Meter Self-Test............................................................................................................... 114
WEEE Compliance ..................................................................................................................115
Declaration of Conformity ........................................................................................................115
Meter Specifications ................................................................................................................116
Ordering Information................................................................................................................122
Versa Star Pro Meters and Versa Star Modules ............................................................122
Versa Star Pro Meter Accessories, Electrodes and Solutions........................................126
Appendix A................................................................................................................ 128
Channel Specific Settings and Features ................................................................ 128
General Mode Settings ............................................................................................................128
Sample ID ......................................................................................................................128
Stability...........................................................................................................................129
Averaging.......................................................................................................................129
Alarms............................................................................................................................129
pH and ISE Mode Settings ......................................................................................................130
Buffer Group and Automatic Buffer Recognition ............................................................ 130
Isopotential Value...........................................................................................................131
Linear Regression ..........................................................................................................132
Blank Correction.............................................................................................................133
Low Level Stability .........................................................................................................134
LogR Temperature Technology ...............................................................................................135
LogR Temperature Accuracy .........................................................................................135
Advanced pH Electrode Diagnostics using LogR Technology .......................................136
Conductivity, TDS, Salinity and Resistivity Mode Settings.......................................................140
Cell Constant (K) and Automatic Conductivity Calibration .............................................140
Orion Conductivity Standard Values from 0 °C to 50 °C................................................141
Reference Temperature, Temperature Compensation and Temperature Coefficient ....143
Cell Type........................................................................................................................144
TDS Factor.....................................................................................................................144
Salinity Type...................................................................................................................144
Dissolved Oxygen Settings...................................................................................................... 145
Barometric Pressure Compensation ..............................................................................145
Salinity Correction ..........................................................................................................145

6Orion Versa Star Pro Meter User Manual Thermo Scientific
1
Meter Introduction
Meter Overview
Thermo Scientific™ Orion™ Versa Star Pro™ meters offer four channels that can be configured
in any combination through their modular design. Measurement modules are automatically
recognized by the meter and can be added or removed from channels at any time.
Five Thermo Scientific™ Orion™ Versa Star™ measurement modules are available:
VSTAR-PH module measures pH, mV, relative mV or ORP with temperature
VSTAR-ISE module measures concentration using an ion selective electrode (ISE), pH,
mV, relative mV or ORP with temperature
VSTAR-LR module measures pH, mV or ORP with temperature, including LogR
technology that measures sample temperature using a glass-bulb pH electrode –no
separate ATC probe needed in samples
VSTAR-CND module measures conductivity, TDS, salinity or resistivity with temperature
VSTAR-RD module measures dissolved oxygen as percent saturation or concentration
with temperature using either RDO®optical or polarographic probes
Orion Versa Star Pro meters offer a System Access feature for administrative and up to ten
user accounts with custom access to various meter functions including data/time settings, meter
setup, measurement setup, data log and calibration log. Use password protection to secure
selected meter functions while leaving other functions accessible for all users –the new System
Access feature allows you to customize meter access to meet your specific security and data
Chapter 1

Chapter 1Meter Introduction
Thermo Scientific Orion Versa Star Pro Meter User Manual 7
reporting needs. The system access feature can easily be turned on or off as the needs of your
lab change for the ultimate flexibility in operation and ease-of-use.
Get the information you need quickly and easily from the large, bright color display, which can
be personalized to show only the measurements and information you need. Display one to four
measurements simultaneously in any combination.
When setting up the meter or performing a calibration, step-by-step instruction prompts and a
numeric keypad with menu-specific function keys make meter operation fast and simple. The
meter interface can be set to a variety of languages.
Packing List
Versa Star Pro meters and meter kits include the following items:
Meter-attachable electrode stand
Universal power adapter, 100-240 VAC, 50-60 Hz
Literature CD
Printed quick start guide
USB computer cable
Meter test certificate
Each Versa Star Pro meter is tested and certified by Thermo Fisher Scientific and a certificate
of testing is included with each meter and measurement module system.
For specific measurement module and kit contents, refer to the Ordering Information section.
Visit our website at www.thermofisher.com/orionsoftware to download the latest Versa Star
USB driver.
Intended Use
Please read this user manual thoroughly. Any use outside of these instructions may invalidate
the meter warranty and cause permanent damage to the meter.

8Orion Versa Star Pro Meter User Manual Thermo Scientific
2
Meter Basics
Using the Universal Power Adapter
A universal power adapter (Catalog Number STARA-PWR) with US, EU, UK and China plug
plates is included with the Versa Star Pro meter.
This universal power adapter is specifically for use with Versa Star Pro meters. Use of other
power adapters can damage the meter and void the warranty. The use of a surge protector or
uninterrupted power supply (UPS) is also recommended.
1. Select the appropriate plug plate for the power outlet.
2. Remove the clear plastic cover from the back of the power adapter.
3. Slide the plug plate into the groove on the back of the power adapter.
4. Connect the assembled power adapter to the outlet and meter input labeled POWER.
Chapter 2

Chapter 2Meter Basics
Thermo Scientific Orion Versa Star Pro Meter User Manual 9
Attaching the Electrode Stand
The electrode stand can be attached to either side of the meter and up to two stands can be
attached to each meter. A weighted base (Catalog Number STARA-HB) is also available to
support the stand without a meter.
1. Open the box containing the stand. Included are base plate, electrode arm, pivot pin,
electrode holder, ATC spacer and RDO clip.
2. Turn the meter over, with the meter display facing down, on a clean dry surface.
3. Identify the side of the meter that the stand will be installed on and remove the screw
between the circles on that side of the meter.
4. Align the base plate of the stand with the circles on the meter.
5. Replace the screw from step 3 to attach the base plate to the meter.
6. Turn the meter over, with the meter display facing up.
7. Insert the electrode arm into the metal post on the base plate.
8. Connect the electrode holder to the electrode arm using the pivot pin.
9. Once the stand has been assembled, use the two wing nuts to adjust the tension at each
joint to restrict the movement forward and backward using the lower wing nut and upward
and downward using the upper wing nut.
Electrode Holder
Pivot Pin
ATC Spacer
Cable Management Clips
RDO Clip
Electrode Arm
Base Plate
Lower
Wing Nut
Upper
Wing Nut

Chapter 2Meter Basics
10 Orion Versa Star Pro Meter User Manual Thermo Scientific
Meter Connections
1. Connect a Thermo Scientific™ Orion Star™ series stirrer probe (Cat. No. 096019) to the
STIRRER 1 and/or STIRRER 2 input on the meter. The stirrer probes are controlled and
powered by the meter, eliminating the need for magnetic stir bars and plates.
The STIRRER 1 and STIRRER 2 inputs can be assigned to each channel and the
stirrer speed can be set using the Instrument Settings setup menu.
2. For data transfer to a computer, connect a cable to the MINI B USB or RS232 input on the
meter and the corresponding input on the computer.
3. For data transfer to a printer, connect a cable to the MICRO AB USB or RS232 input on the
meter and the corresponding input on the printer.
4. Review the meter output settings (Communication, Printing, Printing Format) in the
Instrument Settings setup menu to ensure the meter output settings are correct to interface
the meter with a printer or computer.
The following image shows the meter back panel without any modules connected.
Connector
Function
MICRO AB USB
Use for data output to a USB printer
STIRRER 1
Accepts an Orion Star stirrer probe, which is controlled and powered by the meter
RS232
Use the RS232 cable (Cat. No. 1010053) for bi-directional communication and data
transfer via RS232
MINI B USB
Use the USB cable (included with meter) for bi-directional communication and data
transfer via USB
STIRRER 2
Accepts the Orion Star stirrer probe, which is controlled and powered by the meter
POWER
Connect the universal power adapter (included with meter) to power the meter.
Remove and reconnect the power adapter to reboot the meter
GND
Ground receptacle used to reduce interference generated by other equipment
MINI B USB
STIRRER 2
POWER
GND
MICRO AB USB
STIRRER 1
RS232

Chapter 2Meter Basics
Thermo Scientific Orion Versa Star Pro Meter User Manual 11
Meter Keypad
The Versa Star Pro meter keypad includes menu-specific function keys that update on the
display for fast and efficient meter operation, a numeric keypad to facilitate data entry and
shortcut keys for easy navigation to the measurement, setup, calibration, data log and
calibration log menus.
Key Icon and Name
Function
power
Press the power key to enter the standby meter mode with screen saver.
Press the power key a second time to enter the active meter mode.
f1, f2, f3
Press the f1, f2 and f3 function keys to perform the action shown above each
key on the display.
channel
Press the channel key when two or more modules are connected to the meter
to change the measurement display to show each channel individually or a
combination of two or more channels simultaneously.
measure (esc)
Press the measure (esc) key to start a new measurement when in the
measurement mode and using Auto-Read or Single-Shot read types.
Press the measure (esc) key to escape from other menus and modes to the
measurement mode.
Press to enter a value of one (1) when using the numeric keypad.
up arrow ()
Press the up arrow ()key to scroll up through a list of items.
Press to enter a value of two (2) when using the numeric keypad.
setup
Press the setup key to enter the setup menu from the measurement mode.
Press to enter a value of three (3) when using the numeric keypad.
cal
Press the cal key to enter the calibration menu from the measurement mode.
Press to enter a decimal point (.) when using the numeric keypad.

Chapter 2Meter Basics
12 Orion Versa Star Pro Meter User Manual Thermo Scientific
Key Icon and Name
Function
left arrow ()
Press the left arrow ()key to scroll left through a list of items.
Press to enter a value of four (4) when using the numeric keypad.
enter
Press the enter key to select an option.
Press to enter a value of five (5) when using the numeric keypad.
right arrow ()
Press the right arrow ()key to scroll right through a list of items.
Press to enter a value of six (6) when using the numeric keypad.
stirrer
Press the stirrer key to turn on or off the stirrer probe when in the
measurement mode and using continuous or timed read types and in the
calibration edit mode.
Press to make value positive or negative (+/-) when using the numeric keypad.
mode
Press the mode key to change the measure mode of a channel.
Press to enter a value of seven (7) when using the numeric keypad.
down arrow ()
Press the down arrow ()key to scroll down through a list of items.
Press to enter a value of eight (8) when using the numeric keypad.
log view
Press the log view key to access the data log and calibration log from the
measurement mode.
Press to enter a value of nine (9) when using the numeric keypad.
log/print
Press the log/print key to manually log, print, or log and print a measurement,
depending on the selected read type and data output settings.
Press to enter a value of zero (0) when using the numeric keypad.
Function Keys
The following image shows the f1, f2 and f3 keys with their corresponding actions above each
function key on the meter display. Pressing the f1 (Cal) key will prompt the meter to enter the
calibration mode. Pressing the f2 (Sample ID) key will prompt the meter to enter the sample ID
setup mode. Pressing the f3 (Setup) key will prompt the meter to enter the main setup menu.
Numeric Keypad
The following drawing shows the keys that are active when
entering a value using the numeric keypad. The decimal (.)
key and plus/minus (+/-) key are active so fractional values
and positive or negative values can be entered as needed.

Chapter 2Meter Basics
Thermo Scientific Orion Versa Star Pro Meter User Manual 13
Measurement Modules
The Versa Star Pro meter has four channels that can be configured in any combination using
Versa Star measurement modules. The type of module connected to the channel will define the
measurement capability of that channel. Measurement modules are automatically recognized
by the meter and can be added or removed from a channel at any time. Five Versa Star
modules are available for pH, pH/ISE, pH/LogR, conductivity and dissolved oxygen.
Module Measurement Capabilities
The table below shows the module part number, module label shown on the top tab and
measure modes. All measure modes include the option to also measure temperature.
Module Catalog #
VSTAR-PH
VSTAR-ISE
VSTAR-LR
VSTAR-CND
VSTAR-RD
Label
pH
pH/ISE
pH/LogR
Cond
RDO/DO
Measure Modes
pH
pH
pH
Conductivity
% Saturation
mV
mV
mV
TDS
mg/L
RmV
RmV
RmV
Salinity
ORP
ORP
ORP
Resistivity
ISE
Temperature Modes
Automatic
Automatic
Automatic
Automatic
Automatic
Manual
Manual
Manual
Manual
LogR
Preconfigured Meter and Module Options
Versa Star Pro meters can be purchased without modules or preconfigured with up to four
modules included. Preconfigured Versa Star Pro meters will have the modules already
connected with the channels. Any open channels will be covered with blank modules.
1. VSTAR-PH (pH), VSTAR-ISE (pH/ISE), VSTAR-CND (Conductivity) and VSTAR-RD
(RDO/DO) measurement modules –each connects with one channel.
2. VSTAR-LR (pH/LogR) measurement module connects with two channels.
3. Unused channels are covered with blank modules.

Chapter 2Meter Basics
14 Orion Versa Star Pro Meter User Manual Thermo Scientific
Inserting and Removing Modules
Modules can be added or removed at any time, with the meter powered on or off.
Module Insertion
1. Hold the top (labeled) and bottom tabs on the module with your thumb and index finger and
squeeze the tabs towards each other.
2. Slide the module straight into an open channel grove on the back of the meter. The tabs
should snap into place when the module is fully connected to the meter.
3. Release the top and bottom tabs on the module.
4. If the meter is powered on, it will automatically recognize the module and update the
channel ID display (top, left) with the module ID in the corresponding channel location.
Module Removal
1. Hold the top (labeled) and bottom tabs on the module with your thumb and index finger and
squeeze the tabs towards each other.
2. Pull straight back to remove the module from channel grove on the back of the meter.
3. The meter will automatically recognize that the module has been removed and update the
channel ID display (top, left) with dashes in the previous channel location.

Chapter 2Meter Basics
Thermo Scientific Orion Versa Star Pro Meter User Manual 15
Module Connections
Versa Star Pro meters are compatible with pH electrodes with BNC connectors, ATC probes
and conductivity probes with 8 pin MiniDIN connectors and dissolved oxygen probes (both RDO
optical and polarographic) with 9 pin MiniDIN connectors –the same electrodes and probes
compatible with Orion Star meters, Orion Star Plus meters and Orion Star A series meters.
Make sure the module is properly inserted in the meter and the meter is connected to a power
source using the included universal power adapter.
Module Catalog #
VSTAR-PH
VSTAR-ISE
VSTAR-LR
VSTAR-CND
VSTAR-RD
Label
pH
pH/ISE
pH/LogR
Cond
RDO/DO
Connectors
(from top to
bottom)
8 pin MiniDIN
8 pin MiniDIN
8 pin MiniDIN
8 pin MiniDIN
9 pin MiniDIN
BNC
BNC
BNC
Pin Tip
Pin Tip
Pin Tip
VSTAR-PH Versa Star pH Module and
VSTAR-ISE Versa Star pH/ISE Module
VSTAR-LR Versa Star
pH/LogR Module
VSTAR-CND Versa Star
Conductivity Module
VSTAR-RD Versa Star
RDO/DO Module
8 pin MiniDIN
BNC
Pin Tip
8 pin MiniDIN
8 pin MiniDIN
BNC
Pin Tip
9 pin MiniDIN

Chapter 2Meter Basics
16 Orion Versa Star Pro Meter User Manual Thermo Scientific
Measurement Display Options
Single, Dual or Multiple Channel Displays
When two or more modules are connected with the Versa Star Pro meter, pressing the channel
key will change which channels are displayed in the measurement mode. Each channel can be
displayed separately or two, three or four channels can be displayed simultaneously. To
customize the channel display options shown when the channel key is pressed, use the
Instrument Settings setup menu.
Press and hold the channel key to quickly scroll through the channel display options and
release the channel key when the desired channel display configuration is shown. This feature
is available with the latest Versa Star software and all Versa Star Pro software revisions.
View Format
Displayed Information (Customizable & Measurement Dependent)
Single Channel
–Channel 1
–Channel 2
–Channel 3
–Channel 4
–Channel ID
–Print, Log, Alarm, RS232/USB Icons
–Date and Time
–Channel Number
–Measure Mode
–Method Number
–Read Type (AR, TM, SS) Icons
–Stabilizing/Ready Indicator
–Main Measurement with Units
–Secondary Measurement with Units
–Temperature with Units and Source
–Calibration Point, Data, Time, Slope
–Electrode Status
–RDO Cap Life
–Alarm Indicators
–Account ID, Electrode ID, Sample ID
Example Single
Channel Display
Two Channels
–Channels 1 & 2
–Channels 1 & 3
–Channels 1 & 4
–Channels 2 & 3
–Channels 2 & 4
–Channels 3 & 4
–Channel ID
–Print, Log, RS232/USB Icons
–Date and Time
–Channel Number
–Measure Mode
–Method Number
–Read Type (AR, TM, SS) Icons
–Stabilizing/Ready Indicator
–Main Measurement with Units
–Secondary Measurement with Units
–Temperature with Units and Source
–Electrode ID, Sample ID

Chapter 2Meter Basics
Thermo Scientific Orion Versa Star Pro Meter User Manual 17
View Format
Displayed Information (Customizable & Measurement Dependent)
Example Two
Channel Display
Three Channels
–Channels 1, 2 & 3
–Channels 1, 2 & 4
–Channels 1, 3 & 4
–Channels 2, 3 & 4
–Channel ID
–Print, Log, RS232/USB Icons
–Date and Time
–Channel Number
–Measure Mode
–Method Number
–Read Type (AR, TM, SS) Icons
–Stabilizing/Ready Indicator
–Main Measurement with Units
–Secondary Measurement with Units
–Temperature with Units and Source
Example Three
Channel Display
Four Channels
–Channels 1, 2, 3 & 4
–Channel ID
–Print, Log, RS232/USB Icons
–Date and Time
–Channel Number
–Measure Mode
–Method Number
–Read Type (AR, TM, SS) Icons
–Stabilizing/Ready Indicator
–Main Measurement with Units
–Secondary Measurement with Units
–Temperature with Units and Source
Example Four
Channel Display

Chapter 2Meter Basics
18 Orion Versa Star Pro Meter User Manual Thermo Scientific
Measurement Display Examples
pH Mode Display
mV Mode Display RmV Mode Display ORP Mode Display
ISE Mode Display
pH/LogR Mode Display
Ion selective electrode (ISE) type
Calibration information with
calibration points, date and time of
most recent active calibration
Main measurement mode
Main measurement value
Channel ID for measurement
modules connected to meter
Channel number
Date and time
Method
Temperature measurement and source
Main measurement units
mV corresponding to main measurement
ISE condition icon and slope value of
most recent active calibration
Date and time
Method
Temperature measurement and source
Main measurement units
mV corresponding to main measurement
pH electrode condition icon and slope
value of most recent active calibration
Channel ID for measurement
modules connected to meter
Channel number
Main measurement mode
Main measurement value
Calibration information with
calibration points, date and time of
most recent active calibration
pH bulb resistance, appears with LogR
temperature compensation
Date and time
Method
Main measurement units
mV corresponding to main measurement
Main measurement mode
Channel number
Channel ID for measurement
modules connected to meter
Main measurement value
Temperature measurement
and source

Chapter 2Meter Basics
Thermo Scientific Orion Versa Star Pro Meter User Manual 19
Conductivity Mode Display
Dissolved Oxygen Mode Display
Additional Measurement Display Icons
Icon
Name
Description
Printer Icon
Signals when a measurement is sent to a printer or computer
(measurement read type dependent). Printing option must be set to On
in the Instrument Settings setup menu.
Data Log Icon
Signals when a measurement is recorded in the data log
(measurement read type dependent). Data log option must be set to
On in the Instrument Settings setup menu.
Alarm Icon
Shown when a meter alarm is triggered. The corresponding alarm
identification will also flash on the display as High Limit Alarm, Low
Limit Alarm, Cal Due Alarm or Set Point Alarm. Alarm must be enabled
in the channel-specific setup menu.
Channel ID for measurement
modules connected to meter
Channel number
Date and time
Method
Main measurement units
Calibration information with
calibration points, date and time of
most recent active calibration
Main measurement value
Main measurement mode
RDO optical cap information
(changes from green to red with
30 days or less of cap life)
Calibration information with
calibration type, date and time of
most recent active calibration
Main measurement value
Date and time
Barometric pressure
Channel ID for measurement
modules connected to meter
Channel number
Main measurement mode
Salinity value
Method
Temperature measurement and source
Temperature compensation setting
Temperature measurement and source
Main measurement units

Chapter 2Meter Basics
20 Orion Versa Star Pro Meter User Manual Thermo Scientific
Icon
Name
Description
USB Icon
Shown when the Communication option is set to USB or USB
PRINTER in the Instrument Settings setup menu.
RS232 Icon
Shown when the Communication option is set to RS232 in the
Instrument Settings setup menu.
Auto-Read Icon
Shown when the measurement read type is set to Auto-Read. The icon
flashes while the measurement value is stabilizing and remains sold
when the measurement value is stable and locked on the display.
Timed Read Icon
Shown when the measurement read type is set to Timed.
Single-Shot Icon
Shown when the measurement read type is set to Single-Shot.
Stabilizing
Stability Indicator
Flashes while the measurement value is stabilizing.
Ready
Stability Indicator
Shown when the measurement value is stable.
Cal Due Alarm
Flashes when the calibration due alarm is triggered. Cal Due Alarm
must be enabled in the channel-specific setup menu.
Account ID Icon
Shown with the user name logged onto the active account when the
System Access feature is enabled.
Electrode ID Icon
Shown with the electrode serial number or name entered using a
channel-specific setup menu.
Sample ID Icon
Shown with the sample name or value (auto-incremental) entered
using a channel-specific setup menu or Sample ID shortcut key.
pH Electrode Condition Icon
Versa Star Pro meters with pH, pH/ISE and pH/LogR modules include a pH electrode condition
icon. In the measurement mode, the electrode condition icon indicates the performance of the
electrode, based on the last saved calibration and electrode measurement stability.
Icon
pH Electrode Status
Electrode condition is good.
The electrode slope is in the range of 95.1% to 104.9 %.
Electrode condition is fair.
The electrode slope is in the range of 85.1% to 95.0% or in the range of 105.0 % to 114.9%.
Electrode condition is bad.
The electrode slope is less than 85% or the electrode slope is greater than 115%.
Consult the pH electrode user manual for instructions on how to clean, condition and
troubleshoot the electrode.
Note: This is a general indicator of overall electrode status –always refer to the pH electrode
user manual for specific information on the recommended slope range for each pH electrode.