Thermo Scientific STARA2120, STARA2125, STARA2126 User Manual

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Page 1

Thermo Scientific

User Manual

Orion Star A210 Series

Electrochemistry Benchtop Meters

68X000441 • Revision A • June 2015

Page 2

mportant Note

Please read this user guide thoroughly before using your meter. Any use outside of these instructions may invalidate your warranty and cause permanent damage to the meter.

Page 3

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

Installing Batteries (Optional Power Source) ............................................................................... 9

Attaching the Electrode Stand and Holder ................................................................................. 10

Using the Electrode Holder .............................................................................................. 11

Meter Connections ..................................................................................................................... 12

Meter Keypad ............................................................................................................................ 14

Function Keys .................................................................................................................. 15

Meter Display ............................................................................................................................. 16

Measurement Display Icons ............................................................................................. 18

pH Electrode Condition Icon ............................................................................................. 18

Meter Models and Measurement Capabilities ............................................................................ 19

Meter Maintenance .................................................................................................................... 19

Chapter 3 ..................................................................................................................... 20

Meter Setup Menus ..................................................................................................... 20

Main Setup Menu ....................................................................................................................... 20

General Setup Menu Navigation ...................................................................................... 20

Channel-Specific Method, Mode and Temperature Menus........................................................ 24

Method Menu ................................................................................................................... 25

Mode and Settings Menu ................................................................................................. 28

Temperature Menu ........................................................................................................... 41

Instrument Settings Setup Menu................................................................................................ 45

Log View Menu .......................................................................................................................... 46

Data Log ........................................................................................................................... 46

Calibration Log ................................................................................................................. 47

iagnostics Menu ...................................................................................................................... 48

Meter Self Test Procedure ............................................................................................... 48

Electrode Stability Test Procedure ................................................................................... 49

Chapter 4 ..................................................................................................................... 50

Using the pH or pH/ISE Channel ............................................................................... 50

Meter and Electrode Preparation ............................................................................................... 50

pH Calibration Procedure .......................................................................................................... 51

pH Calibration Editing....................................................................................................... 52

ORP Calibration Procedure (Relative mV Mode) ....................................................................... 53

ORP Calibration Procedure (E

ISE Calibration Procedure ......................................................................................................... 55

ISE Calibration Editing ..................................................................................................... 56

Measurement Procedure ........................................................................................................... 57

Units) ....................................................................................... 54

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Chapter 5 ..................................................................................................................... 58

Using the Conductivity Channel ............................................................................... 58

Meter and Sensor Preparation ................................................................................................... 58

Conductivity Calibration Procedure ............................................................................................ 59

Conductivity Calibration Editing ........................................................................................ 60

Alternative Certified Cell Constant Entry Calibration Procedure ...................................... 60

Conductivity Standards vs. Temperature Table ......................................................................... 61

Conductivity Meter Verification Procedure ................................................................................. 62

Measurement Procedure ........................................................................................................... 63

Chapter 6 ..................................................................................................................... 64

Using the DO/RDO Channel ....................................................................................... 64

Meter and Sensor Preparation ................................................................................................... 64

Dissolved Oxygen Calibration Procedure .................................................................................. 65

Air (Water-saturated Air) Calibration ................................................................................ 66

Water (Air-saturated Water) Calibration ........................................................................... 66

Manual (Winkler) Calibration ............................................................................................ 67

Set Zero Calibration ......................................................................................................... 68

Measurement Procedure ........................................................................................................... 69

Chapter 7 ..................................................................................................................... 70

Data Transfer and Software Updates ........................................................................ 70

Data Storage and Transfer Settings .......................................................................................... 70

Measurement Read Type Setting ..................................................................................... 70

Data Log Setting .............................................................................................................. 71

Export Data Settings ........................................................................................................ 72

Printer Compatibility and Requirements .................................................................................... 74

Computer Compatibility and Requirements ............................................................................... 75

Using the USB-to-Serial Computer Cable ........................................................................ 76

Using the USB Computer Cable ....................................................................................... 78

Orion Star Com Communication Software ....................................................................... 81

Meter Interfacing with Other Computer Programs ............................................................ 82

Star A200-A300 Meter Remote Control Protocols ............................................................ 83

Meter Software Upgrade Procedure .......................................................................................... 90

Chapter 8 ..................................................................................................................... 94

Customer Services ..................................................................................................... 94

Troubleshooting Tips ................................................................................................................. 95

Meter Factory Reset Procedure ....................................................................................... 96

Meter User Reset Procedure ............................................................................................ 96

Notice of Compliance ................................................................................................................. 97

WEEE Compliance .................................................................................................................... 97

Declaration of Conformity .......................................................................................................... 98

Meter Specifications .................................................................................................................. 99

Ordering Information ................................................................................................................ 106

Meter Accessories, Electrodes and Solutions ................................................................ 108

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Page 6

CHAPTER 1 Meter Introduction

Meter Overview

Thermo Scientific™ Orion Star™ A210 series benchtop meters feature an informat ive, easy to read graphic display with backlight and onscreen calibration and setup instructions for intuitive, user-friendly operation with minimum training. The comprehensive keypad with menu-specific function keys and useful shortcut keys allows fast and efficient meter navigation and control. The multilanguage user interface allows customization of the meter in a variety of local languages and new languages can be added through software updates.

Measurements can be taken quickly and reliably with the onscreen re a ding st ab ilit y ind icat or and selectable read modes – Auto-Read, timed or continuous with hold function. The data log collects up to 2000 measurement sets with time and date stamp and the non-volatile meter

™

memory preserves all data, even with the loss of power. Use Thermo Scientific

™

software to facilitate data transfer from the meter to a computer via USB or RS232,

Com export data to an Excel spreadsheet or comma separated value file (.csv) and print data to a network or local printer.

Orion™ Star

Utilize the Orion Star stirrer probe for meter-powere d and meter-contr o lled sample stirri ng w ith five selectable stirring speeds. Use the stirrer probe with the included electrode stand to simplify placement into and out of solutions and eliminate the need for magnetic stir bars and plates.

The IP54-rated dust and splash resistant meter housing offers the flexibility to place the meter where it is needed – on the bench or wall-mounted to save space. For added site adaptability, power the meter using the included universal power adapter or optional four AA batteries. Six Orion Star A210 series benchtop meters are available to meet your exact measurement needs.

6 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 7

Chapter 1 | Meter Introduction

Orion Star A211 pH Benchtop Meter Measure pH, mV, relative mV or ORP with temperature

Orion Star A212 Conductivity Meter Measure conductivity, TDS, salinity or resistivity with temperature

Orion Star A213 RDO/DO Meter Measure dissolved oxygen as % saturation or concentration with temperature using either

optical or polarographic DO sensors

RDO Orion Star A214 pH/ISE Meter

Measure ion concentration using an ion selective electrode (ISE), pH, mV, relative mV or ORP with temperature

Orion Star A215 pH/Conductivity Meter Measure pH, mV, relative mV or ORP with temperature on channel one and measure conductivity, TDS, salinity or resistivity with temperature on channel two

Orion Star A216 pH/RDO/DO Meter Measure pH, mV, relative mV or ORP with temperature on channel one and measure dissolved oxygen as % saturation or concentration with temperature on channel two

Packing List

Orion Star A210 series benchtop meters and meter kits include the following items:

• Meter-attachable electrode stand and holder

• Universal power adapter

• Literature CD

• Printed quick start guide

• Computer interface cable

• Meter test certificate

Each Orion Star A210 series meter is fully tested and certified by Thermo Fisher Scientific and a certificate of calibration is included with each meter. For specifi c meter and kit contents, refer to the

Ordering Information section. Visit our website at www.thermoscientific.com/OrionMeters

to download the complimentary Orion Star Com data transfer computer software and Star A200/A300 series USB driver.

Intended Use

Please read this reference guide thoroughly. Any use outside of these instructions may invalidate the meter warranty and cause permanent damage to the meter.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 7

Page 8

CHAPTER 2 Meter Basics

Using the Univer sal Power Adapter

A universal power adapter (Catalog Number 1010003) with US, EU, UK and China plug plates is included with the Orion Star A210 series benchtop meters. This universal power adapter is specifically for use with Star A210 series benchtop meters. Use of other power adapters can damage the meter and void the warranty.

1. Select the appropriate plug plate for the power outlet that will be used.

2. Remove the clear plastic cover from the groove on the back of the power adapter.

3. Slide the appropriate plug plate into the groove on the back of the power adapter.

4. Connect the assembled power adapter to a power outlet and the meter input labeled Power.

surge protector or uninterrupted power supply (UPS) is also recommended.

8 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 9

Chapter 2 | Meter Basics

Installing Batteries (Optional P ower Source)

1. Select four new AA alkaline batteries.

2. Confirm that the meter is powered off.

3. Turn the meter over, with the meter display facing down, on a clean dry surface.

4. Remove the battery compartment cover – push down on the battery compartment tab and

lift the battery compartment cover up.

5. Install the new batteries in the battery compartment, orientating the batteries as shown in

the battery compartment housing.

6. Replace the battery compartment cover and turn the meter over, with the meter displa

acing up.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 9

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Chapter 2 | Meter Basics

Attaching the Electrode Stand and Holder

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 attachment to the meter.

1. Open the box containing the electrode stand. The box will include a 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

. 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.

10 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

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Chapter 2 | Meter Basics

12 mm holder with optional ATC

probe insert

Stirrer probe holder

Holder with 20° angle for gas

sensing ion selective electrodes

Optional RDO optical dissolved oxygen sensor holder

12 mm flexible holder for pH, ORP and ion selective electrodes

15 mm holder for conductivity and dissolved oxygen sensors

Using the Electrode Holder

Place electrodes in the stand for easy movement in and out of containers during calibration, sample measurement and storage. Recommended electrode positions are shown below.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 11

Page 12

Chapter 2 | Meter Basics

Connect the universal power adapter (included with meter) to power the meter

Connect an Orion Star stirrer probe (Catalog Number stirring with five selectable speeds

Connect the USB cable for bi-directional data transfer and communication via USB to a printer or computer

Connect the RS232 cable for bi-directional data transfer and communication via RS232 to a printer or computer

Connect a pH electrode, ORP/redox electrode or ion selective electrode (ISE) with BNC connector

Star A211, Star A214, Star A215, Star A216 meters

Connect a half-cell reference electrode with standard 2.5 mm pin-tip connector

Star A211, Star A214, Star A215, Star A216 meters

Connect an ATC temperature probe with 8 pin MiniDIN connector

Star A211, Star A214, Star A216 meters

Connect a conductivity sensor or ATC temperature probe with 8 pin MiniDIN connector

Connect a dissolved oxygen sensor (either RDO optical or polarographic) with 9 pin MiniDIN connector

Meter Connections

The following diagram depicts all the possible meter connections available on the Orion Star A210 series benchtop meters. Some Star A210 series benchtop meters will have fewer connections, depending on the meter’s measurement capabilities.

Connector Function Applicable Meter Models

Power

Stirrer

USB

RS232

BNC

Ref.

ATC/CON

Ground Use to reduce interference generated by other equipment All Star A210 series meters DO/RDO

096019) for meter-controlled and meter-powered sample

All Star A210 series meters

Star A212, Star A215 meters

Star A213, Star A216 meters

Orion Star A210 series benchtop meters are compatible with the same electrodes and sensors used with Thermo Scientific Star pH/ATC electrodes, Thermo Scientific Orion

12 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

™

Orion™ Versa Star™ meters and legacy Thermo Scientific™ Orion

™

and Star Plus meters. This includes the Thermo Scientific™ Orion™ ROSS Ultra™ Triode™

™

Orion™ ROSS™ pH electrodes and Thermo Scientific™

™

DuraProbe™ conductivity sensors.

Page 13

Orion Star A211 pH Meter Connections

Orion Star A212 Conductivity Meter Connections

Orion Star A213 RDO/DO Meter Connections

Chapter 2 | Meter Basics

Orion Star A214 pH/ISE Meter Connections

Orion Star A215 pH/Conductivity Meter Connections

Orion Star A216 pH/RDO/DO Meter Connections

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 13

Page 14

Chapter 2 | Meter Basics

f1, f2, f3

Press the power key to turn on the meter.

Press the measure (esc) key in the Auto-Read measurement mode to start

log view

stirrer

Meter Keypad

The Orion Star A210 series benchtop meter keypad includes menu-specific function keys that update on the display for fast and efficient meter operation and shortcut keys for easy navigation to the measurement, setup, data log and calibration log menus.

Key Icon and Name Function

Press the f1, f2 and f3 function keys to perform the action shown above each key on the display.

When the meter is powered on, press and release the power key to switch the display backlight on and off.

pow

easure (esc)

ess and hold the power key for about three seconds to turn off the meter.

a new measurement. Press the measure (esc) key to escape the current mode or menu and

return to the measurement mode.

Press the log view key to access the data log and calibration log from the measurement mode.

Press the stirrer key to turn the stirrer probe on and off in the continuous or timed measurement mode and the calibration edit mode.

14 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 15

Key Icon and Name Function

setup / up arrow (p)

mode / right arrow (u)

(q)

Hold / left arrow (t)

Press the setup key to enter the setup menu from the measurement mode. Press the up arrow (p) key to scroll up through a list of items.

Press the mode key to change the measurement mode of the displayed channel.

Press the right arrow (u) key to sc roll right through a list of items.

Press the log/print key to manually log and/or print a measurement, depending on the selected measurement mode and data output settings.

log/print / down arrow

Press the down arrow (q) key to scroll down through a list of items.

In the continuous measurement mode, press the hold key to lock (freeze) the current displayed measurement and press the hold key again to release (unfreeze) the measurement.

Press the left arrow (t) key to scroll left through a list of items.

Chapter 2 | Meter Basics

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.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 15

Page 16

Chapter 2 | Meter Basics

Date and time

Method

mV corresponding to main measurement

Main measurement units

Main measurement mode

Calibration points from most

recent active calibration

Main measurement value

Temperature measurement

and source

Date and time

Method

Main measurement units

Main measurement mode

Calibration points from most

recent active calibration

Main measurement value

Temperature measurement

and source

Temperature compensation setting

Date and time

Method

Main measurement mode

Barometric pressure

Main measurement value

Temperature measurement

and source

Salinity value

Main measurement units

Meter Display

Measurement Display Examples

The following displays are examples only. Actual meter displays will vary based on the selected meter setup parameters, active calibration data, etc.

Orion Star A211 pH Measurement Display

Orion Star A212 Conductivity Meter Display

Orion Star A213 RDO/DO Meter Display

16 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

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Chapter 2 | Meter Basics

Date and time

Method

mV corresponding to main measurement

Main measurement units

Main measurement mode

Main measurement value

Temperature measurement

and source

Channel 2 main measurement value

Channel 2 main measurement units

Channel 2 main

measurement mode

Channel 1 main

measurement mode

Channel 1 main measurement value

Channel 1 main measurement units

Date and time

Channel 1 temperature

measurement and source

Channel 2 temperature

measurement and source

Channel 2 main measurement value

Channel 2 main measurement units

Channel 2 main

measurement mode

Channel 1 main

measurement mode

Channel 1 main measurement value

Channel 1 main measurement units

Date and time

Channel 1 temperature

measurement and source

Channel 2 temperature

measurement and source

Orion Star A214 pH/ISE Meter Display

Orion Star A215 pH/Conductivity Meter Display

Display each channel separately or both channels simultaneously using the f3 (channel) key.

Orion Star A216 pH/RDO/DO Meter Display

Display each channel separately or both channels simultaneously using the f3 (channel) key.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 17

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Chapter 2 | Meter Basics

Display Icon

Description

Shown when the meter is running on AC power

Shown when the meter is running on battery power

Indicates the RS232 port is selected for printer or computer interfacing

Indicates the USB port is selected for printer or computer interfacing

Displays the active temperature measurement and indicates the source as an ATC temperature sensor (ATC) or manually entered temperature value (MAN)

Shown when the hold key is pressed and displayed measurements are frozen, press the hold key a second time to release the hold function

Indicates a calibration has been successfully completed, flashes when the calibration alarm is set and the alarm is triggered

Indicates the pH electrode condition as good (two bars), fair (one bar) or bad (slash through it), based on the last saved calibration and electrode stability

Indicates the active measurement method number, M100 and M200 are the default methods and indicate a password-protected method is not in use

Stability indicator will flash stabilizing while the measurement is changing and show ready when the measurement is stable

When the read type is set to Auto-Read, the icon will flash while the reading is stabilizing and remain solid when the reading is stable and locked on the display

Indicates the sample ID function is active, the operator assigned number is shown to the right of the icon

Indicates the user ID function is active, the operator assigned name is shown to the right of the icon

Icon

pH Electrode Status

Electrode condition is bad. The electrode slope is 85% or lower or 115% or higher. Consult the pH electrode manual for instructions on how to clean, condition and troubleshoot the electrode.

Measurement Display Icons

Indicates when data is exported to a computer or printer Indicates when a measurement is recorded in the data log Shown when an alarm is set and the alarm is triggered

pH Electrode Condition Icon

Orion Star A211 pH meters, Orion Star A214 pH/ISE meters, Orion Star A215 pH/conductivity meters and Orion Star A216 pH/RDO/DO meters include a pH electrode condition icon. In the measurement mode, the pH electrode condition icon indicates the performance of the pH electrode, based on the last saved calibration and electrode measurement stability.

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 85.1% to 95% or 105% to 114.9%.

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.

18 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 19

Chapter 2 | Meter Basics

Channel 1 Measurement Modes

Channel 2 Measurement Modes

Automatic

RmV

Manual

ORP

Conductivity

TDS

Automatic

Salinity

Manual

Resistivity

Star A213

DO as % Saturation

DO as mg/L

Automatic

RmV

Manual

ORP

ISE

Conductivity

TDS

Automatic

RmV

Salinity

Manual

ORP

Resistivity

DO as % Saturation

Automatic

RmV

DO as mg/L

Manual (Ch 1 only)

ORP

Meter Models and Measurement Capabilities

The table below shows the available models of Orion Star A210 series benchtop meters and their available measurement modes. All measurements include temperature.

Meter Model

Star A211 pH Meter

Star A212 Conductivity Meter

RDO/DO Meter

Star A214 pH/ISE Meter

Star A215 pH/Conductivity Meter

Temperature Modes

n/a

n/a Automatic

n/a

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 19

Star A216 pH/RDO/DO Meter

Meter Maintenanc e

• For routine meter maintenance, dust and wipe with a damp cloth. If necessary, warm water

or mild water-based detergent can be used.

• Meter maintenance can be performed on a daily, weekly or monthly basis, as required by

the operating environment.

• Remove any spilled substances immediately from the meter or module using the proper

cleaning procedure for that spill type.

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CHAPTER 3

0 1 2 . 3 4 5 6 7 8 9

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done

enter

Meter Setup Menus

Main Setup Menu

The main setup menu of the Orion Star A210 series meters contains menus for measurement settings, instrument settings, calibration and data logs and meter diagnostics in one location.

General Setup Menu Navigation

1. In the measurement mode, press the setup key to access the main setup menu.

2. Press the p, q, t or u key to scroll through and highlight a setup menu icon and press

the f3 (select) key to access the submenus for the selected menu.

3. Press the p or q key to scroll and highlight a submenu option and press the f3 (select)

key to access the parameters for the selected submenu.

4. Perform the appropriate actions to set the parameters and settings in the selected menu.

a. To select a value from a list of options, press the p or q key to highlight the desired

value and then press the f3 (select) key to set the value.

b. To enter a numeric value, use the popup number entry screen.

i. Press the f3 (edit) key to open the number entry screen.

ii. Press the p, q, t or u key to highlight a number,

decimal point or negative sign and then press the f (enter) key to select the highlighted item. Repeat until the desired value is shown at the top of the screen.

iii. Press the f2 (done) key to save the value and exit the number entry screen.

5. Press the f1 (back) key to navigate out of a menu and press the measure (esc) key t

eturn to the measurement mode at any time.

20 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 21

Main Setup Menu Icons and Descriptions

Icon

Description

Applicable Meter Models

Use the pH Channel menu to customize measurement, mV), ORP and temperature

Star A211 pH meter Star A215 pH/conductivity meter Star A216 pH/RDO/DO meter

Use the pH/ISE Channel menu to customize RmV (relative mV), ORP, ISE and temperature

Use the COND Channel menu to customize conductivity, salinity, TDS, resistivity and temperature

Use the DO/RDO Channel menu to customize dissolved oxygen and temperature

Use the Instrument Settings menu to update meter

shutoff, user ID and sample ID

Access the View Log menu to view, export or clear recent calibrations per channel in the calibration log

Access the Diagnostics menu to initiate a meter reset, the meter serial number and software revision

Star A211 pH Meter Setup Menu

Star A214 pH/ISE Meter Setup Menu

Star A215 pH/Conductivity Meter Setup Menu

Orion Star A216 pH/RDO/DO Meter Setup Menu

calibration and alarm settings for pH, mV, RmV (relative

Chapter 3 | Met er Set up Me nus

measurement, calibration and alarm settings for pH, mV,

measurement, calibration and alarm settings for

settings for data transfer, data log, date and time, language, sounds, stirrer speed, display contrast, auto-

saved data in the data log and view or print the ten most

perform a meter self test, test electrode stability or view

Example Main Setup Menu Displays

Star A214 pH/ISE meter

Star A212 conductivity meter Star A215 pH/conductivity meter

Star A213 RDO/DO meter Star A216 pH/RDO/DO meter

All Star A210 series meters

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 21

Page 22

Chapter 3 | Met er Set up Me nus

Main Setup Menu Flow Chart

Main Setup

Channel*

Method

Mode and

Settings

Temperature

Settings

Export Data

Data Log

Date / Time

Language

Key Press

Beep

Alarm Beep

View Log

Data Log

Calibration

Log

Diagnostics

Factory

Reset

User Reset

Self Test

Stability Test

About Meter

Stirrer

Contrast

Auto Shut

Off

User ID

Sample ID

* R

efer to next figure for a detailed list of the measurement, calibr ation and alarm setti ngs within

each channel-specific Mode and Settings menu.

22 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 23

Channel-specific Mode and Settings Menu Flow Chart

Main Setup

Chapter 3 | Met er Set up Me nus

pH Channel

Mode and

Settings

Measure

Mode

Read Type

Resolution

Buffer

Group

Stability

Averaging

pH/ISE

Channel

Mode and

Settings

Measure

Mode

Read Type

Resolution

Buffer Group

Measure

Unit

Blank

Correct

COND

Channel

Mode and

Settings

Measure

Mode

Read Type

Cell K

Type

(Salinity)

TDS Factor

Ref. Temp.

DO/RDO

Channel

Mode and

Settings

Measure

Mode

Measure

Unit

Resolution

Read Type

Baro

Pressure

Salinity Correct

Limit Alarm

Cal Due

Alarm

Stability

Averaging

Limit Alarm

Cal Due

Alarm

Low Lv

Stability

Temp. Comp.

Temp.

Coeff.

Stability

Averaging

Limit Alarm

Cal Due

Alarm

Cell Type

Stability

Averaging

Limit Alarm

Cal Due

Alarm

RDO Cap

Life

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 23

Page 24

Chapter 3 | Met er Set up Me nus

Meter Model

Available Channel-specific Menus

Orion Star A211 pH meter

pH Channel

Orion Star A212 conductivity meter

COND Channel

Orion Star A213 RDO/DO meter

RDO/DO Channel

Orion Star A214 pH/ISE meter

pH/ISE Channel

pH Channel

COND Channel

pH Channel

RDO/DO Channel

Channel-Speci fic Method, Mode and Temperature Menus

Within the pH Channel, pH/ISE Channel, COND Channel and DO/RDO Channel menus are Method, Mode and Settings and Temperature submenus, which can be used to customize the measurement, calibration and alarm settings for each channel. The channel menus displayed by each meter will depend on the meter model and its measuring capabilities.

Orion Star A215 pH/conductivity meter

Orion Star A216 meters pH/RDO/DO meter

• Method – Use the Method setup menu to create, load, copy, edit or delete password

protected methods.

• Mode and Settings – Select the Mode and Settings menu to review and update the

measurement, calibration and alarm settings for the selected channel.

• Temperature – Use the Temperature menu to manually enter a sample temperature value,

set the temperature units as °C or °F, perform a temperature calibration on an ATC probe or conductivity / dissolved oxygen sensor with built-in temperature and set temperature input source for meters with dual temperature sources.

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Chapter 3 | Met er Set up Me nus

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Method Menu

Save up to ten channel-specific methods in the Method menu for fast and easy recollection of custom channel-specific measurement, calibration and alarm settings.

The default method (M100 or M200) is updated whenever the channel-specific measurement, calibration and alarm settings are changed in the Mode and Settings menu and the default method is not password protected.

The custom methods (M101-M110 or M201-M210) can be protected using a three to eight digit password. When a protected method is created, loaded and active in the measurement mode and a calibration is performed, that calibration will be saved to the method so every time the method is loaded, the corresponding calibration will also be loaded.

Protected methods are helpful when using two or more electrodes on one channel. For example, a pH electrode and an ion selective electrode (ISE) used on the same BNC input of the Star A214 pH/ISE meter or a low range conductivity sensor and standard range conductivity sensor used on the same 8 pin MiniDIN input of the Star A212 conductivity meter.

Creating a New Method using the Current Meter Set tings

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel, COND Channel or

/RDO Channel

3. Press the p or q key to highlight Method and press the f3 (select) key to access the

methods list.

4. Press the p or q key to highlight Current Settings and press the f3 (save) key.

5. Press the p or q key to highlight an open method (M101-M110 or M201-M210) to save

the current channel-specific settings to and press the f2 (accept) key.

a. Open methods have no date, time or mode shown in the methods list.

6. Use the popup number entry screen to create a method-specific password (3 to 8 digits).

a. Press the f3 (edit) key to access the number entry screen. b. Press the p, q, t or u key to highlight a number, press th

(enter) key to select the number and repeat until the desired

password is shown at the top of the number entry screen.

c. Press the f2 (done) key to accept the password and exit the

number entry screen.

7. Press the f2 (accept) key to save the entered password.

and press the f3 (select) key.

backspace

8. The meter will return to the methods list and the selected method number will have the date,

time and mode shown in the methods list.

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Chapter 3 | Met er Set up Me nus

Loading a Method

Use the load function to activate a protected method for use in the measurement mode. If no protected method has been created, the open method is active. A password is not required to load a protected method.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel, COND Channel or

O/RDO Channel

and press the f3 (select) key.

3. Press the p or q key to highlight Method and press the f3 (select) key to access the

methods list.

4. Press the p or q key to highlight a protected method to be loaded in the measurement

mode and press the f2 (load) key.

a. Protected methods have the date, time and mode shown in the methods list.

5. The meter will automatically proceed to the measurement mode.

Copying a Method

Use the copy function to save the channel-specific measurement, calibration and alarm settings of an existing method to a new method, so the original method settings are preserved and the new method settings can be modified. When using the copy function to create a new method, a new password must be created for the new method to be saved.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel, COND Channel or

O/RDO Channel

and press the f3 (select) key.

3. Press the p or q key to highlight Method and press the f3 (select) key to access the

methods list.

4. Press the p or q key to highlight a protected method to be copied to an open protected

method and press the f3 (options) key.

a. Protected methods have the date, time and mode shown in the methods list.

5. Use the popup number entry screen to enter the specific password for the selected method.

a. Press the f3 (edit) key to access the number entry screen. b. Press the p, q, t or u key to highlight a number, press the f3 (enter) key to select

the number and repeat until the correct password is shown at the top of the screen.

c. Press the f2 (done) key to accept the password and exit the number entry screen.

6. Press the f2 (accept) key to submit the password for the selected method.

7. Press the p or q key to highlight Copy and press the f2 (accept) key.

8. Press the p or q key to highlight an open method and press the f2 (accept) key.

a. Open methods have no date, time or mode shown in the methods list.

9. Use the popup number entry screen to create a password for the new method.

26 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

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Chapter 3 | Met er Set up Me nus

a. Press the f3 (edit) key to access the number entry screen. b. Press the p, q, t or u key to highlight a number, press the f3 (enter) key to select

the number and repeat until the desired password is shown at the top of the screen.

c. Press the f2 (done) key to accept the password and exit the number entry screen.

10. Press the f2 (accept) key to submit the new password for the new method.

11. The meter will return to the methods list and the new method number will have the date,

time and mode shown in the methods list.

Editing or Deleti n g a Method

Use the edit function to modify the channel-specific measurement, calibration and alarm settings of an existing protected method. Use the delete function to convert an existing protected method to an open method.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel, COND Channel or

O/RDO Channel

and press the f3 (select) key.

3. Press the p or q key to highlight Method and press the f3 (select) key to access the

methods list.

4. Press the p or q key to highlight a protected method and press the f3 (options) key.

a. Protected methods have the date, time and mode shown in the methods list.

5. Use the popup number entry screen to enter the specific password for the selected method.

a. Press the f3 (edit) key to access the number entry screen. b. Press the p, q, t or u key to highlight a number, press the f3 (enter) key to select

the number and repeat until the correct password is shown at the top of the screen.

c. Press the f2 (done) key to accept the password and exit the number entry screen.

6. Press the f2 (accept) key to submit the password for the selected method.

7. Press the p or q key to highlight Edit or Delete and press the f2 (accept) key.

a. If Edit is selected:

i. Perform the appropriate actions to set the channel-specific measurement,

alibration and alarm settings within the selected method.

ii. Once the required settings have been edited, press the f1 (back) key to retur

o the methods list.

b. If Delete is selected:

i. Press the f2 (yes) key to confirm the deletion of the selected method.

ii. The method will be deleted and the meter will automatically proceed to the

measurement mode.

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Chapter 3 | Met er Set up Me nus

Smart Stability Setting

mV per Minute

Stability Setting

mV per Minute

0.1 resolution or 1 significant digit

7.6

Fast Stability

7.6

0.01 resolution or 2 significant digits

2.9

Medium Stability

2.9

0.001 resolution or 3 significant digits

1.0

Slow Stability

1.0

Mode and Settings Menu

General Mode and Settings Options

Read Types

The read type determines how the meter displays, logs and exports measurements. Ensure the appropriate data export and data log settings are enabled in the Instrument Settings menu before logging or exporting measurements.

• Auto-Read:

o Press the measure (esc) key to start a measurement. The AR icon blinks as the

changing value stabilizes. When stable, the AR icon stops blinking and the measurement is locked on the display until the measure (esc) key is pressed again.

o When enabled, the stable measurement is automatically saved to the data log an

exported to a printer or computer.

• Continuous

o M

easurement values are continuously updated on the display and the Stabilizing o

eady icon indicates the measurement stability status.

o When enabled, press the log/print key to save a measurement to the data log and

export it to a printer or computer.

• Timed

o M

easurement values are continuously updated on the display and the Stabilizing o

eady icon indicates the measurement stability status.

o When enabled, mea surements are saved to the data log and exported to a printer or

computer at the selected time interval of 3 seconds (00:00:03) to 24 hours (24:00:00).

Stability Setting Information

The stability setting determines when a measurement is recognized as stable by the meter, using an algorithm that evaluates measurement fluctuations. When Smart Stability is selected, the measurement resolution is utilized in conjunction with the algorithm. Approximate mV per minute values, estimated with ideal measurement conditions, are shown below. Values are theoretical only and actual values will vary based on individual measurement conditions.

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Chapter 3 | Met er Set up Me nus

Averaging Setting

The averaging setting allows the operator to select Automatic Smart averaging for faster measurement stability or Off for no measurement averaging once the stability criteria is met.

Limit Alarm Setting

The limit alarm setting allows measurements to be evaluated using set high limit and/or low limit values. If a measurement goes above the high limit value or below the low limit value, the alarm is triggered. For example, when the high limit is set to 8.50 pH, the alarm will activate when a measurement of 8.51 pH or higher is read in the measurement mode. Turn on the alarm beep setting in the Instrument Settings menu to enable an audible beep when the alarm is triggered.

Calibration Due Alarm Setting

The calibration due alarm allows the operator to set a custom calibration interval in hours. If a calibration is not performed within the specified calibration interval, the alarm is triggered. Turn on the alarm beep setting in the Instrument Settings menu to enab le an audible beep when the alarm is triggered.

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Chapter 3 | Met er Set up Me nus

Parameter

Settings

Details

• pH

• ORP

• Auto

• Timed 00:00:03

Set the read type to determine how the meter takes a the data log and/or external device

1 Decimal Place 3 Decimal Places

0.1

0.001

Set the buffer group for automatic buffer recognition

DIN: pH 1.68, 4.01, 6.86 and 9.18 buffers

• Smart Stability

• Slow

Set averaging for faster measurement stability, conditions and optimizes the meter response time

• Limit Alarm

• Low Limit

Set the calibration due alarm off or on, when the cal

has elapsed without a calibration being performed

Mode and Settings Menu for pH Channel

Use the Mode and Settings menu to customize the measurement, calibration and alarm settings for the pH channel of Orion Star A211 pH meters, Orion Star A215 pH/conductivity meters and Orion Star A216 pH/RDO/DO meters. Default meter settings are bold.

Measure Mode

Read Type

Resolution

(pH only)

Buffer Group

(pH only)

Stability

Averaging

Limit Alarm

• mV

• RmV

• Continuous

2 Decimal Places

• USA

• DIN

• Fast

• Medium

• Off

• Autom atic Smart

Off On

• Alarm Settings

High High/Low Low

• High L imit

Set the displayed measurement mode, the selected mode determines which additional settings are shown and the type of calibration the meter will perform

measurement and when the measurement is sent to

0.01

Set the resolution of the pH measurement value

during pH calibrations USA: pH 1.68, 4.01, 7.00, 10.01 and 12.46 buffers

Set when a measurement is recognized as stable, Smart Stability compensates for measurement conditions and optimizes the meter response time

Automatic Smart compensates for measurement

Set the limit alarm off or on, when alarm is on – set the alarm setting as high, high/low or low and then enter the appropriate measurement limit values

The limit alarm is triggered when the measurement goes above the high limit or below the low limit

30 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Cal Due Alarm

(pH, RmV and ORP only)

• Cal Due Alarm On Off

• Cal Due Limit

12 Hrs

due alarm is on – enter the calibration time interval in hours (1 to 9998 hours)

The cal due alarm is triggered after the entered time

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Chapter 3 | Met er Set up Me nus

USA Buffer Set

DIN Buffer Set

pH Buffer

mV range

pH Buffer

mV range

1.68

+255 mV to +374 mV

1.68

+255 mV to +374 mV

4.01

+117 mV to +236 mV

4.01

+117 mV to +236 mV

7.00

-59 mV to +59 mV

6.86

-51 mV to +67 mV

10.01

-237 mV to -119 mV

9.18

-189 mV to -70 mV

12.46

-382 mV to -264 mV

Buffer Group Setting

Orion Star A211 pH meters, Orion Star A215 pH/conductivity meters and Orion Star A216 pH/RDO/DO meters are capable of automatically recognizing pH buffer values within the selected buffer set during a pH calibration. During the pH calibration, the meter uses the selected pH buffer set and the raw mV reading of the pH electrode in the buffer to recognize and display the buffer value at the measured temperature. The raw mV reading of the pH electrode in the buffer must be within one pH unit (approximately ±59 mV) of the buffer’s theoretical mV value for the meter to recognize the buffer.

Testing a pH Electrode for Automatic Buffer Recognition

Use the following procedure to verify that the raw mV reading of the pH electrode is within one pH unit (±59 mV) from the theoretical mV reading of the pH buffer, and therefore verify that the pH electrode in use is capable of performing automatic buffer recognition.

1. Prepare the pH electrode according to the electrode manual. Set the meter measurement mode to mV.

2. Rinse the pH electrode with distilled water, blot it dry with a lint-free tissue and place the pH electrode into a pH 4.01 buffer at approximately 25 °C.

3. Wait for the measurement to stabilize and record the mV value of the pH 4.01 buffer when the measurement is stable.

4. Remove the pH electrode from the pH 4.01 buffer.

5. Rinse the pH electrode with distilled water, blot it dry with a lint-free tissue and place the pH electrode into a pH 7.00 buffer at approximately 25 °C.

6. Wait for the measurement to stabilize and record the mV value of the pH 7.00 buffer when the measurement is stable.

7. The mV reading of the pH electrode in pH 4 buffer should be +117 to +236 mV and in pH b

uffer should be -59 to +59 mV. If the mV readings are in the correct ranges, the pH

electrode is capable of performing automatic buffer recognition. If the mV readings are not in the correct ranges, manually enter the pH buffer values during a pH calibration.

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Chapter 3 | Met er Set up Me nus

Parameter

Settings

Details

• pH

• RmV

Set the displayed measurement mode, the selected and the type of calibration the meter will perform

• Auto

• Timed 00:00:03

Set the read type to determine how the meter takes a

1 Decimal Place 3 Decimal Places

0.1

0.001

Set the buffer group for automatic buffer recognition

DIN: pH 1.68, 4.01, 6.86 and 9.18 buffers

1 significant digit

3 significant digits

• ppm

• mg/L

• Percentage (%)

• None

Set the automatic blank correction function off or on

samples for improved measurement stability

• Smart Stability

• Slow

Set averaging for faster measurement stability, conditions and optimizes the meter response time

• Limit Alarm

• Low Limit

Set the calibration due alarm off or on, when the cal

has elapsed without a calibration being performed

Set the low level stability function off or on for ISE

improve accuracy in low level calibration standards

Mode and Settings Menu for pH/ISE Chann el

Use the Mode and Settings menu to customize the measurement, calibration and alarm settings for the pH/ISE channel of Orion Star A214 pH/ISE meters. Default meter settings are bold.

Measure Mode

Read Type

Resolution

(pH only)

Buffer Group

(pH only)

Resolution

(ISE only)

Measure Unit

(ISE only)

Blank Correct

(ISE only)

• mV

• ORP

• ISE

• Continuous

2 Decimal Places

• USA

• DIN

2 significant digits

• M

• ppb

• Yes

• No

mode determines which additional settings are shown

measurement and when the measurement is sent to the data log and/or external device

0.01

Set the resolution of the pH measurement value

during pH calibrations USA: pH 1.68, 4.01, 7.00, 10.01 and 12.46 buffers

Set the resolution of the ion concentration (ISE) measurement value

Set the units displayed with the ion concentration (ISE) measurement value

for ISE measurements, when the function is on – an algorithm is used to compensate for the non-linear response of the electrode in low level standards and

32 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Stability

Averaging

Limit Alarm

Cal Due Alarm

(pH, RmV, ORP and ISE only)

Low Lv Stability

• Fast

• Medium

• Off

• Autom atic Smart

Off On

• Alarm Settings

High High/Low Low

• High L imit

• Cal Due Alarm

On Off

• Cal Due Limit

12 Hrs

• Off

• On

Set when a measurement is recognized as stable, Smart Stability compensates for measurement conditions and optimizes the meter response time

Automatic Smart compensates for measurement

Set the limit alarm off or on, when alarm is on – set the alarm setting as high, high/low or low and then enter the appropriate measurement limit values

The limit alarm is triggered when the measurement goes above the high limit or below the low limit

due alarm is on – enter the calibration time interval in hours (1 to 9998 hours) The cal due alarm is triggered after the entered time

calibrations, when the function is on – the minimum stabilization time is increased (~3-5 minutes) to

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Chapter 3 | Met er Set up Me nus

Buffer Group Setting

Orion Star A214 pH/ISE meters are capable of automatically recognizing pH buffer values within the selected buffer set during a pH calibration. During the pH calibration, the meter uses the selected pH buffer set and the raw mV reading of the pH electrode in the buffer to recognize and display the buffer value at the measured temperature. The raw mV reading of the pH electrode in the buffer must be within one pH unit (approximately ±59 mV) of the buffer’s theoretical mV value for the meter to recognize the buffer.

Blank Correct Setting

Orion Star A214 pH/ISE meters offer the option to use blank (non-linear) correction for ISE measurements when a multi-point calibration is performed. The automatic blank correction feature uses an algorithm to compensate for the non-linearity of an ion selective electrode in low level standards and samples.

With the blank correction feature enabled, the meter decides whether blank correction is the best measurement strategy by analyzing the electrode response during a multi-point calibration. A separate blank does not have to be run. Graphically, blank correction is equivalent to drawing a smooth curve through the lowest three points of the multi-point calibration and extrapolating to zero concentration based on the assumption of Nernstian electrode behavior.

Multi-point calibrations at the lower limit of detection are desirable when the response of an ion selective electrode is non-linear and cannot be characterized with a one or two point calibration. This is usually seen as a low electrode slope. Generally, the electrode is behaving in a Nernstian manner but the effect of a blank is being observed. See the figure below.

This blank may be a true reagent blank, traces of analate ion in the reagents or it may be the “mud” value of the electrode. It could also be an interference in the reagents that becomes apparent at low levels of analate ion, or it could be any combination of these effects. The expanded version of the Nernst equation traditionally used for blank correction is as follows:

+ S * log (C + b) where b is the blank

E = E

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Chapter 3 | Met er Set up Me nus

In a multi-point calibration, a set of equations is generated and the relationship between them evaluated. For example, the equations generated in a three point calibration would be:

= E0 + S * log (C1 + b)

= E0 + S * log (C2 + b)

= E0 + S * log (C3 + b)

The meter evaluates the relationships between the three potentials E concentrations C

, C2 and C3. If the relationships indicate that blank correction is desired, a

, E2 and E3 and the three

blank will automatically be calculated and the non-linearity will be corrected for in a Nernstian manner. If the appropriate conditions are not met, the blank is set at zero and each segment of the multi-point calibration is treated independently.

When all three of the following conditions are met, blank correction is invoked.

1. The concentration of the first standard is zero, or the slope of the electrode between the first and second standards is less than the slope between the second and third.

2. Potential differences between points are significant. For example, E

- E1 > 10 mV

3. The blank correction algorithm converges at reasonable blank and slope values. Conditions in steps 1 and 2 prevent failure to converge in most situations. However, the slope will attain any value necessary for convergence to a calculated blank value of 3 x C

When blank correction is implemented, the slope value for the electrode may be outside the range of values normally considered acceptable during an ordinary calibration. For best results, calibration standards should be close in range to the expect ed sample concentr ation s and should bracket the expected sample concentration. When conditions 1, 2 and 3 are not met, the calibration data is handled by the multi-point calibration method described earlier.

In calibrations with more than three points, a combination of methods is utilized. Automatic blank correction is used if the lowest three points satisfy the criteria and multi-point calibration is used for the other points. The slope calculated in the automatic blank correction algorithm and the slopes for each additional segme nt are used to calculate the average slope.

Low Level Stability Setting

Orion Star A214 pH/ISE meters offer the option to use the low level stability feature when calibrating ion selective electrodes. The low level stability feature improves the accuracy of low concentration ISE measurements by adjusting the timing for calibration point s of low level standards, allowing a longer stabilization time for the electrode in the calibration standards. The stabilization time is typically extended to about three to five minutes per calibration point, but will vary based on the actual readings from the electrode during calibration.

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Chapter 3 | Met er Set up Me nus

Parameter

Settings

Details

• Conductivity

• Resistivity

• Auto

• Timed 00:00:03

Set the read type to determine how the meter takes a Enter the nominal cell constant (K) value of the conductivity sensor for automatic conductivity calibration

Type

(Salinity only)

• Practical Salinity

• Sea Water

Set the type of salinity measurement as practical salinity (psu) or natural sea water (ppt)

TDS Factor

(TDS only)

Enter the TDS factor value for total dissolved solids measurements

• 5 °C

• 25°C

• Off

• EP

Enter the temperature coefficient used with the linear temperature compensation setting

• Smart Stability

• Slow

Set averaging for faster measurement stability, Automatic optimizes the meter response time

• Limit Alarm

Low Limit

• Cal Due Alarm

Set the calibration due alarm off or on, when on – enter

has elapsed without performing a calibration

• Standard

• USP

Set the type of conductivity senor as standard (most sensors) or USP (2-cell sensors in ultra pure water)

Mode and Settings Menu for COND Channel

Use the Mode and Settings menu to customize the measurement, calibration and alarm settings for the conductivity channel of Orion Star A212 condu ctiv ity meters and Orion Star A215 pH/conductivity meters. Default meter settings are bold.

Measure Mode

Read Type

• Salinity

• TDS

• Continuous

Cell K Cell K 0.4750

TDS Factor 0.49

• 10°C

Ref. Temp.

• 15°C

• 20°C

• Linear

Temp. Comp.

• nLFn

• nLFu

Set the displayed measurement mode, the selected mode determines which additional settings are shown and the type of calibration the meter will perform

measurement and when the measurement is sent to the data log and/or external device

Set the reference temperature for temperature compensated measurements, readings are adjusted to the selected reference temperature when the temperature compensation setting is active

Set the temperature compensation type as linear, nLFn (non linear natural water), nLFu (non linear ultra pure water), EP (compensation off with alarm when values are outside EP requirements for ultra pure water) or off

Temp. Coeff. Temp. Coefficient 2.10

Stability

Averaging

Limit Alarm

Cal Due Alarm

(Conductivity only)

Cell Type

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 35

• Fast

• Medium

• Off

• Autom atic Smart

Off On

• Alarm Settings

High High/Low Low

• High L imit

•

On Off

• Cal Due Limit

12 Hrs

Set when a measurement is recognized as stable, Smart Stability compensates for measurement conditions and optimizes the meter response time

Smart compensates for measurement conditions and

Set the limit alarm off or on, when alarm is on – set the alarm setting as high, high/low or low and then enter the appropriate measurement limit values

The limit alarm is triggered when the measurement goes above the high limit or below the low limit

the calibration interval in hours (1 to 9998 hrs) The calibration due alarm is triggered after the set time

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Chapter 3 | Meter Setup Menus

Catalog Number

Description

011008

Orion 100 μS conductivity standard, 5 x 60 mL

011007

Orion 1413 μS conductivity standard, 5 x 60 mL

01100710

Orion 1413 μS conductivity standard, 10 individual use pouches

011006

Orion 12.9 mS conductivity standard, 5 x 60 mL

01100610

Orion 12.9 mS conductivity standard, 10 individual use pouches

Cell K Setting

Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters are capable of automatically recognizing Thermo Scientific Orion 100 μS condu ctivity stand ard, 1413 μS conductivity standard and 12.9 mS conductivity standard when the nominal cell constant (K) value of the conductivity sensor is entered in the setup menu.

The nominal cell constant (K) values for Thermo Scientific Orion conductivity sensors compatible with Star A210 series conductivity meters are listed below.

Catalog Number

013005MD

013010MD

013020MD

013025MD

013605MD

013610MD

013016MD

011510MD

Description Measurement Range

Orion 4-cell conductivity/temperature sensor with

1.5 meter (5 foot) cable Orion 4-cell conductivity/temperature sensor with

3 meter (10 foot) cable Orion 4-cell conductivity/temperature sensor with

6 meter (20 foot) cable Orion 4-cell conductivity/temperature sensor with

10 meter (32 foot) cable Orion 4-cell conductivity/temperature sensor with

1.5 (5 foot)meter cable Orion 4-cell conductivity/temperature sensor with

3 meter (10 foot) cable Orion pure water 2-cell conductivity/temperature

sensor with 1.5 meter (5 foot) cable Orion 2-cell conductivity/temperature sensor with

3 meter (10 foot) cable

1 μS/cm to 200 mS/cm 0.475 cm

10 μS/cm to 200 mS/cm 0.55 cm

0.01 μS/cm to 300 μS/cm 0.1 cm

10 μS/cm to 200 mS/cm 1.0 cm

Nominal Cell Constant

-1

011050MD

018020MD

36 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Orion 2-cell conductivity/temperature sensor with

1.5 meter (5 foot) cable Orion high range 2-cell conductivity sensor with

1.5 meter (5 foot) cable

1 μS/cm to 20 mS/cm 1.0 cm

10 μS/cm to 2000 mS/cm 10 cm

-1

Page 37

Chapter 3 | Met er Set up Me nus

Solution (25 °C to 50 °C)

Temperature Coefficient (% / °C)

Sugar Syrup

5.64

Ultra Pure Water

4.55

98% Sulfuric Acid

2.84

Salt (NaCl)

2.12

Dilute Ammonia

1.88

5% NaOH

1.72

10% HCl

1.32

5% Sulfuric Acid

0.96

Reference Temperature, Temperature Compensation and Coefficient Settings

Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters offer several options for temperature compensated conductivity measurements. Temperature has a large effect on the conductivity value of a solution. The temperature compensation feature allows the meter to use the sample conductivity and temperature readings to calculate and display the conductivity that the sample would be expected to have at a selected reference temperature, such as 25 °C. To accurately use the temperature compensation feature, select the proper type of temperature compensation for the samples to be measured; set the required reference temperature as 5 °C, 10 °C, 15 °C, 20 °C or 25 °C; and use a conductivity sensor with built-in ATC temperature probe. The options for temperature compensation are:

• Linear – uses the temperature coefficient value to apply a constant percent correctio

actor to every degree change in temperature. A few common linear coefficient values are:

• nLFn (non-linear ultra pure non-degassed water) – applies a non-constant correction factor

to pure water samples that have a varying response to changes in temperature. This mode is for temperature compensated readings of low conductivity waters that are in equilibrium with the carbon dioxide in air, such as pure waters reading near 1 μS/cm at 25 °C and natural waters having a composition comparable to natural ground, well or surface waters.

• nLFu (non-linear ultra pure degassed water) – applies a non-constant correction factor to

pure water samples that have a varying response to changes in temperature. This mode is for temperature compensated readings of ultra pure water that contains no air and no carbon dioxide, such as ultra pure water (18 megohms resistance or higher) directly from the source without aeration.

• EP – no temperature correction is applied (temperature compensation turned off) and a

warning is displayed if the measured conductivity value is over the EP requirement for pure water at the measured sample temperature.

• Off - no temperature correction is applied and the actual conductivity value is displayed at

the measured sample temperature.

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Chapter 3 | Met er Set up Me nus

Salinity Type Setting

Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters offer two salinity types: practical salinity and natural sea water. Practical salinity measurements are based on relating the sample measurement to the reading of a standard potassium chloride (KCl) solution at 15 °C. Orion Star A210 series conductivity meters will automatically temperature compensate and report the expected practical salinity result as practical salinity units (psu) at 15 °C when using a conductivity sensor with built-in temperature. Natural sea water measurements use a historic convention known as UNESCO 1966 and Orion Star A210 series conductivity meters will report the expected natural sea water result as parts per thousand (ppt).

TDS Factor Setting

Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters measure TDS as the total amount of dissolved inorganic material in a solution. The dissolved inorganic material carries a current that is measured by the conductivity sensor. Since there is a direct relationship between conductivity and TDS, conductivity readings are used to estimate the presence of inorganic material using the TDS factor entered in the setup menu.

The standard method of determining TDS involves evaporating a sample to dryness at 180 °C and weighing the residue. The TDS factor is calculated by taking the residue weight and dividing it by the sample conductivity. Subsequent conductivity readings are multiplied by the TDS factor to determine the TDS value of the sample.

Cell Type Setting

Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters accept 2-cell and 4-cell conductivity sensors and allows the type of conductivity sensor to be set as Standard (most conductivity sen sors) or USP (for the ultra pure water conductivity sensor, Catalog Number 013016MD, when disabling temperature comp ensat ion).

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Chapter 3 | Met er Set up Me nus

Parameter

Settings

Details

Set the type of dissolved oxygen sensor connected to

and update the displayed measurement mode

• mg/L

% sat

Set the units displayed with the dissolved oxygen measurement value

Resolution

(% saturation)

1 Decimal Place

2 Decimal Places

0.1

Set the resolution of the dissolved oxygen measurement value as percent saturation

Resolution

(mg/L)

1 Decimal Place 2 Decimal Places

0.1

0.01

Set the resolution of the dissolved oxygen measurement value as mg/L

• Auto

• Timed 00:00:03

Set the read type to determine how the meter takes a

Set the automatic barometric pressure compensation entered barometric pressure value (Manual)

Enter the salinity value of samples for automatic salinity correction of dissolved oxygen measurements

• Smart Stability

• Slow

Set averaging for faster measurement stability, conditions and optimizes the meter response time

• Limit Alarm

• Low Limit

Set the limit alarm off or on, when the limit alarm is

entered low limit

Set the calibration due alarm off or on, when the cal

has elapsed without a calibration being performed

RDO Cap Life

(RDO only)

RDO Cap Life

0.0

View the remaining RDO optical DO sensor cap life in

Mode and Settings Menu for DO/RDO Channel

Use the Mode and Settings menu to customize the measurement, calibration and alarm settings for the dissolved oxygen channel of Orion Star A213 RDO/DO meters and Orion Star A216 pH/RDO/DO meters. Default meter settings are bold.

Measure Mode

Measure Unit

Read Type

Baro Press

Salinity Correct

Stability

• DO – Polarographic

• RDO

• Auto

•

• Continuous

• Auto

• Manual 760.0mmHg

• Manual 0.0

• Fast

• Medium

the meter as DO polarographic or RDO optical or select Auto and the meter will automatically detect which type of dissolved oxygen sensor is connected

measurement and when the measurement is sent to the data log and/or external device

source as the internal barometer (Auto) or a manually

Set when a measurement is recognized as stable, Smart Stability compensates for measurement conditions and optimizes the meter response time

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 39

Averaging

Limit Alarm

Cal Due Alarm

• Off

• Autom atic Smart

Off On

• Alarm Settings

High High/Low Low

• High L imit

• Cal Due Alarm

On Off

• Cal Due Limit

12 Hrs

Serial Number

Automatic Smart compensates for measurement

on – select the alarm settings as high, high/low or low and then enter the measurement limit values

The limit alarm is triggered when a measurement goes above the entered high limit or below the

due alarm is on – enter the calibration time interval in hours (1 to 9998 hours)

The cal due alarm is triggered after the entered time

days and the serial number

Page 40

Chapter 3 | Met er Set up Me nus

Conductivity

(mS/cm)

Salinity

Value (ppt)

Conductivity

(mS/cm)

Salinity

Value (ppt)

Conductivity

(mS/cm)

Salinity

Value (ppt)

5 3 20

25 6 4

25 7 4

26 8 5

27 9 6

10 6 25

11 7 26

12 8 27

13 8 28

14 9 29

Barometric Pressure Compensation Setting

Orion Star A213 RDO/DO meters and Orion Star A216 pH/RDO/DO meters have an internal barometer that can be used for automatic pressure compensated dissolved oxygen readings. Manual entry of the barometric pressure can be used for automatic pressure compensated dissolved oxygen readings, which is useful when dissolved oxygen is measured with a submerged sensor or in a pressurized vessel. The pressure value must be entered as mm Hg.

1 mm Hg = 0.03937 inch Hg = 1.3332 hPa (mBar) = 0.01934 PSI

Salinity Correction Setting

Orion Star A213 RDO/DO meters and Orion Star A216 pH/RDO/DO meters are capable of performing automatic salinity correction for dissolved oxygen readings (measured as mg/L) when the salinity value of the sample is manually entered as ppt (parts per thousand) in the setup menu.

at 20 °C

Correction

at 20 °C

Correction

at 20 °C

Correction

Calculated from the International Oceanographic Tables, Vol. 1, National Institute of Oceanography of Great Britain, Womley, Godaming, Surrey, England and Unesco, Paris 1971

40 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 41

Chapter 3 | Met er Set up Me nus

Meter Model

Channel

Temperature Menu

Menu Options

• Manual Temp Value

Enter temperature value

• Temperature Unit

• Celsius

• Fahrenheit

• Temperature Calibration

• ATC

• Manual Temp Value

Enter temperature value

• Temperature Unit

• Celsius

• Fahrenheit

• Temperature Calibration

• ATC

• Temperature Unit

• Celsius

• Solution Temperature

Sol & Mem Temp

• Manual Temp Value

Enter temperature value

• Temperature Unit

• Celsius

• Fahrenheit

• Temperature Calibration

• ATC

• Manual Temp Value

Enter temperature value

• Temperature Unit

• Celsius

• Fahrenheit

• Temperature Calibration

• ATC

• Manual Temp Value

Enter temperature value

• Temperature Unit

• Celsius

• Fahrenheit

• Temperature Calibration

• ATC

• Manual Temp Value

Enter temperature value

• Temperature Unit

• Celsius

• Fahrenheit

• ATC

• ATC, Sol & Mem Temp

• ATC

• DO Probe

• Temperature Unit

• Celsius

• Fahrenheit

• Solution Temperature

• Sol & Mem Temp

Temperature Menu

Orion Star A210 series benchtop meters offer a Temperature menu used to customize temperature settings for each channel by manually entering a temperature value, selecting the temperature units as °C or °F and performing a temperature calibration on an ATC probe, conductivity sensor or dissolved oxygen sensor with built-in temperature. Orion Star A216 pH/RDO/DO meters also have the option to use one temperature input source for both measurement channels.

Star A211 pH Meter pH Channel

Star A212 Conductivity Meter

Star A213 RDO/DO Meter

Star A214 pH/ISE Meter

Star A215 pH/ Conductivity Meter

COND Channel

DO/RDO Channel

pH/ISE Channel

pH Channel

COND Channel

• Temperature Calibration

(polarographic DO sensor only)

• Membrane T emperature

•

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 41

Star A216 pH/RDO/DO Meter

pH Channel

DO/RDO Channel

• Temperature Calibration

• Temperature Input

• Temperature Calibration

(polarographic DO sensor only)

• Solution Temperature

• Membrane T emperature

• Sol & Mem Temperature

• Manual

• Membrane T emperature

Page 42

Chapter 3 | Met er Set up Me nus

0 1 2 . 3 4 5 6 7 8 9

–

backspace

back

done

enter

Manual Temperature Value

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel or COND Channel

nd press the f3 (select) key.

3. Press the p or q key to highlight Temperature and press the f3 (select) key.

4. Press the p or q key to highlight Manual Temp Value and press the f3 (select) key.

5. Press the f3 (edit) key access the popup number entry screen and enter the sample temperature value

. Press the p, q, t or u key to highlight a number, decimal point

or negative sign and then press the f3 (enter) key to select the highlighted item. Repeat until the sample temperature v alue is shown at the top of the screen.

b. Press the f2 (done) key to save the value and exit the number

entry screen.

6. Press the f1 (back) key to return to the main temperature menu and press the measure (esc) key to return to the measurement mode.

Temperature U n it

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel, COND Channel or

O/RDO Channel

3. Press the p or q key to highlight Temperature and press the f3 (select) key.

4. Press the p or q key to highlight Temperature Unit and press the f3 (select) key.

5. Press the p or q key to highlight Celsius or Fahrenheit and press the f3 (select) key.

6. Press the measure (esc) key to return to the measurement mode .

and press the f3 (select) key.

42 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 43

Chapter 3 | Met er Set up Me nus

Temperature C alibration

When using Orion Star A210 series benchtop meters, a temperature calibration can be performed on an ATC probe, conductivity sensor with built-in temperat ur e or polarographic dissolved oxygen sensor with built-in temperature when the probe or sensor is connected t o the meter. Use the temperature calibration function only when necessary, since the meter has a relative temperature accuracy of ±0.1°C and ATC probes have varying accu racies, usua lly ±0.5°C to ±2°C. Since the temperature offset calculated during the calibration is applied to all future temperature measurements, recalibrate the temperature if a different ATC probe is used.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel, pH/ISE Channel, COND Channel or

O/RDO Channel

3. Press the p or q key to highlight Temperature and press the f3 (select) key.

4. Press the p or q key to highlight Temperature Calibration and press the f3 (select) key.

5. Press the p or q key to highlight ATC and press the f3 (select) key.

a. If using the Star A213 meter, press the p or q key to highlight Solution Temperature,

embrane Temperature

and press the f3 (select) key.

or Sol & Mem Temperature and press the f3 (select) key.

b. If using the Star A216 meter, press the p or q key to highlight ATC, Solution

Temperature, Membrane Temperature, Sol & Mem Temperature or ATC, Sol & Mem Temp and press the f3 (select) key.

6. Place the ATC probe and/or sensor into a solution with a known, stable temperature. Two NIST-traceable thermometers should be used to measure and verify the temperature.

7. Wait for the temperature value on the meter to stabilize and then press the f3 (edit) key t a

ccess the popup number entry screen and enter the temperature value

. Press the p, q, t or u key to highlight a number, decimal point or negative sign and

then press the f3 (enter) key to select the highlighted item. Repeat until the desired temperature value is shown at the top of the screen.

b. Press the f2 (done) key to exit the number entry screen.

8. Press the f2 (accept) key to save the entered temperature value.

9. Press the f1 (meas) key to return to the measurement mode.

Temperature Calibration for Meters with Multiple Temperature I nputs

When a polarographic dissolved oxygen sensor with two temperature inputs is connected with an Orion Star A213 RDO/DO meter or Orion Star A216 pH/RDO/DO meter, the solution temperature input and membrane temperature input can be calibrated separately or together.

When an ATC probe and polarographic dissolved oxygen sensor are both connected to the Orion Star A216 pH/RDO/DO meter, the temperature calibration for both inputs can also be performed together.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 43

Page 44

Chapter 3 | Met er Set up Me nus

Temperature Input

When using the Orion Star A216 pH/RDO/DO meter, a dissolved oxygen sensor with built-in temperature can be set as the temperature input source for all measurements. For example, when using a pH electrode without an ATC probe, the dissolved oxygen sensor with built-in temperature can be used as the temperature source for pH measurements, as long as both the pH electrode and dissolved oxygen sensor are placed in the same solution.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight pH Channel and press the f3 (select) key.

3. Press the p or q key to highlight Temperature and press the f3 (select) key.

4. Press the p or q key to highlight Temperature Input and press the f3 (select) key.

5. Press the p or q key to highlight ATC, DO Probe or Manual and press the f3 (select) key.

6. Press the measure (esc) key to return to the measurement mode .

44 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 45

Chapter 3 | Met er Set up Me nus

Instrument Setting

• Printing

4800 38400

Access the data export menu to set data transfer

• Off

• On

Turn data logging on to save measurement data to the data log according to the selected read type

• Date

Time: 14:30

• English

•

(Chinese)

• Off

• On

Turn the audible beep on or off each time a meter key is pressed

• Off

• On

Turn the audible beep on or off when an alarm is triggered

Adjust the display contrast higher or lower to improve display viewing in different light conditions

• Off

Turn on function to automatically power off the meter when no keys are pressed for 20 minutes

Enter a user ID value (up to six characters) using the alphanumeric entry screen

• Off

• Auto Increment

Set sample ID as off, manual (up to six alphanumeric are automatically increased for each measurement)

Instrument Sett ings Setup Menu

Use the Instrument Settings menu to update meter settings for data transfer, data log, date and time, language, sounds, stirrer speed, display contrast, auto-shutoff, user ID and sample ID.

Options Details

Export Data

Data Log

Date and Time

Language

Off On

• Comm Setup RS232 USB

• Data Format Printer PC (CSV)

• Comm Config 1200 9600 2400 19200

DD/MM/YY

MM/DD/YY

Date: 01/01/12

• Time 12 Hour Clock

Time: 02:30 PM

24 Hour Clock

• Español

• Deutsch

• Français

• Italiano

中文

settings for exporting measurement and calibration information to a printer or computer Turn printing on to allow data transfer from the meter to an external device, select the data transfer format as printer (standard text) or PC (comma delimited text) and set the meter baud rate to match the printer or computer baud rate The meter will automatically detect when an RS232 or USB cable is connected to a meter port

Use the date setting to select the date format as day/month/year (DD/MM/YY) or month/day/year (MM/DD/YY) and then enter the month, day and year values

Use the time setting to set the time format as 12 hour clock or 24 hour clock and then enter the hour and minute values

Set the language to be used for the meter interface, additional languages (including Portuguese and Korean) are available with software updates on our website at

www.thermoscientific.com/OrionMeters

Key Press Beep

Alarm Beep

Stirrer

Contrast

Auto Shut Off

User ID ABCDE

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 45

Sample ID

•

• Manual

djust the stirrer speed setting from one (slowest) to

five (fastest) when using an Orion Star stirrer probe

characters) or auto incremental (up to six numbers that

Page 46

Chapter 3 | Met er Set up Me nus

Log View Menu

Use the Log View menu to access the data log and calibration log. All information in the data and calibration logs is protected by the meter’s nonvolatile memory, so stored information is saved in the meter even when it is not connected to a power supply.

Data Log

Orion Star A210 series benchtop meters offer a 2000 point data log. Each point includes the actively displayed measurements, depending on the meter model and display configuration, with date and time stamp. When the data log function is turned on, the read type selected for each displayed channel (Auto-Read, Continuous or Timed) determines how the point is saved to the data log.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight View Log and press the f3 (select) key.

3. Press the p or q key to highlight Data Log and press the f2 (select) key.

4. The meter will display a list of the data log points. The list shows the sequential number of the points and the data and time the point was saved.

5. To view measurement information for an individual point:

a. Press the p or q key to highlight a point and then press the f2 (select) key. b. Press the f1 (back) key to return to the list of data log points.

6. To export the data log to a printer or computer:

a. Press the f3 (options) key, press the p or q key to highlight Log Export and then

press the f2 (accept) key.

b. Press the p or q key to highlight Today, Last 10, Range or All and then press the f2

(accept) key.

i. If Range is selected, press the p or q key to highlight the number of the first

) and last (to) points to be exported, use the popup number entry screen

rom

(f to edit the numbers and press the f2 (accept) key to save the entered range.

c. Press the f2 (yes) key to confirm that the meter is interfaced with a printer or computer.

The meter will automatically return to the data log list once the export is completed.

7. To clear the data log memory:

a. Press the f3 (options) key, press the p or q key to highlight Log Clear and then

press the f2 (accept) key. b. Press the f2 (yes) key to confirm erasing the entire data log from the meter’s memory. c. Press the f3 (edit) key, use the popup number entry screen to enter the default meter

password of 111111 and then press the f2 (done) key. d. Press the f2 (accept) key and wait for the data log to be cleared.

46 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 47

Chapter 3 | Met er Set up Me nus

Exported Calibration Log Example,

Calibration Log

Orion Star A210 series meters save up to ten of the most recent calibrations per channel.

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight View Log and press the f3 (select) key.

3. Press the p or q key to highlight Calibration Log and press the f2 (select) key.

4. Press the p or q key to highlight pH–Channel, pH/ISE–Channel, Conductivity–Channel or DO/RDO–Channel

a. If pH–Channel is selected, press the p or q key to highlight pH, RmV or ORP and

press the f2 (select) key.

b. If pH/ISE–Channel is selected, press the p or q key to highlight pH, RmV, ORP or

and press the f2 (select) key.

c. If Conductivity–Channel is selected, press the p or q key to highlight Conductivity,

esistivity

d. If DO/RDO–Channel is selected, press the p or q key to highlight DO or RDO and

press the f2 (select) key.

and press the f2 (select) key.

, TDS or Salinity and press the f2 (select) key.

Printer Data Format:

5. The meter will display a list of calibrations for the selected channel and calibration mode. The list chows the sequential number of the calibration log and the data and time the calibration was completed.

6. To view detailed information for an individual calibration, press the p or q key to highlight a calibration and then press the f2 (select) key.

a. To export the calibration to a printer or computer, press the f2 (print) key.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 47

Page 48

Chapter 3 | Met er Set up Me nus

Diagnostics Menu

Use the Diagnostics Menu to initiate a meter reset, test electrode stability, perform a meter self test or view meter and module serial numbers and software revisions.

• Factory Reset – All meter settings are reset to factory defaults. Data log, calibration log and

methods are deleted. Use the default meter password of 111111 to complete the reset.

• User Reset – All channel-specific measurement, calibration and alarm settings as well a

ll instrument settings are reset to factory defaults and methods are erased. Data log and

calibration log are retained.

• Self Test – Tests the meter accuracy. A self test is also performed automatically by the

meter at each power up.

• Stability Test – Tests the stability of an electrode by measuring the raw input reading per

minute drift and noise.

• About Meter – Displays the meter model, serial number and software revision.

Meter Self Test Procedure

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight Diagnostics and press the f3 (select) key.

3. Press the p or q key to highlight Self Test and press the f2 (select) key.

4. Disconnect all electrodes and sensors from the meter, attach the BNC shorting cap to the BNC input if applicable and press the f2 (yes) key.

5. Press the f2 (yes) key to start the self test.

6. The meter will perform the self test. Once Self Test Passed is displayed, press the f1 (esc) key and the meter will automatically proceed to the measurement mode.

Meter Verification Pro cedure (pH and pH/ISE Channels Only)

1. After completing the self test, the meter will return to the measurement mode. Keep all of the electrodes and sensors disconnected from the meter and keep the BNC shorting cap attached to the BNC input on the meter.

2. Set the measurement mode to pH. The meter should read a steady 7.000 pH ±0.002 pH.

a. If the meter does not read a steady 7.000 ±0.002, perform a one point pH calibration

with the BNC shorting cap attached to the BNC input. Set the pH value to 7.000 and the slope value to 100.0. Refer to the pH Calibration section for detailed instructions.

3. Set the measurement mode to mV. The meter should read a steady 0.0 mV ±0.2 mV

. If the meter does not read a steady 0.0 mV ±0.2 mV with the BNC shorting ca

attached to the BNC input, contact Technical Support.

48 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 49

Chapter 3 | Met er Set up Me nus

Electrode Stability Test Procedure

1. In the measurement mode, press the setup key.

2. Press the p, q, t or u key to highlight Diagnostics and press the f3 (select) key.

3. Press the p or q key to highlight Stability Test and press the f2 (select) key.

4. Press the p or q key to highlight pH–Channel, pH/ISE–Channel, Conductivity–Channel or DO/RDO–Channel

5. Make sure the electrode or sensor to be tested is connected to the channel selected in the previous step and press the f2 (yes) key.

6. Place the electrode or sensor in an appropriate solution with a stable temperature and press the f2 (yes) key.

a. Thermo Scientific Orion pH 7.00 buffer (Catalog Number 910107, 910760 or 910710) is

recommended for testing a pH electrode.

b. Thermo Scientific Orion ORP standard (Catalog Number 967901 or 967961) is

recommended for testing an ORP electrode.

c. A calibration standard with a moderate concentration of the ion of interest is

recommended for testing an ion selective electrode (ISE).

and press the f2 (next) key.

d. Thermo Scientific Orion 1413 µS conductivity standard (Catalog Number 011007 or

01100710) is recommended for testing most conductivity sensors. Thermo Scientific Orion 100 µS conductivity standard (Catalog Number 011008) is recommended for testing ultra pure water conductivity sensors.

e. A prepared water-saturated air calibration sleeve is recommended for testing RDO

optical and polarographic dissolved oxygen sensors.

7. The meter will perform the stability test and show the raw input reading per minute drift and noise on the display.

8. The meter will display Stability Test Passed or Stabi lity T est F ailed. Press the f1 (esc) key

o return to the measurement mode.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 49

Page 50

CHAPTER 4 Using the pH or pH/ISE Channel

Use the Orion Star A211 pH meter, Orion Star A215 pH/conductivity meter or Orion Star A216 pH/RDO/DO meter to measure pH, mV, relative mV, ORP and temperature. Use the Orion Star A214 pH/ISE meter to measure pH, ion concentration using an ISE (ion selective electrode), mV, relative mV, ORP and temperature. The following chapter provides instructions on connecting electrodes, calibrating the system and measuring these parameters.

Meter and Electrode Preparation

1. Familiarize yourself with general meter operation and prepare the meter and accessories according to the instructions in

a. It is recommended that electrodes be placed in the meter-attached electrode stand for

easy movement in and out of containers during calibration, measur ement and storage .

Chapter 2 Meter Basics.

2. Refer to the instructions in calibration and alarm settings within the pH Channel or pH/ISE Channel setup menu and data transfer, data log, date and time, language, sounds, stirrer speed, display contras

uto-shutoff, user ID and sample ID settings within the Instrument Settings setup menu.

3. Connect all necessary electrodes, probes and sensors to the appropriate meter inputs.

a. Connect a pH, ORP or ion selective electrode to the BNC meter input. b. Connect an ATC temperature probe to the 8 pin MiniDIN meter input. c. Connect a reference half-cell electrode to the pin tip meter input (for use when a half-

cell sensing electrode with BNC connector is used).

d. Connect the stirrer probe (Catalog Number 096019) to the Stirrer meter input.

4. Prepare all connected electrodes for use as instructed in the electrode manuals.

50 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Chapter 3 Meter Setup Menus to customize measurement,

Page 51

Chapter 4 | Using the pH or pH/ISE Chann el

pH Calibration Procedure

Orion Star A211 pH meters, Orion Star A214 pH/ISE meters, Orion Star A215 pH/conductivity meters and Orion Star A216 pH/RDO/DO meters can perform a pH calibration using one to five pH buffers with easy to follow onscreen instructions to assist with the calibration process.

Always use fresh pH buffers and select buffers that bracket the sample pH and are one to three pH units apart. Prepare the pH electrode according to the instructions in the electrode manual. Connect all electrodes to be used to the appropriate meter inputs.

Make sure the meter measurement mode is set to pH. For Star A215 and Star A216 meters, press the f3 (channel) key until the pH channel is shown in the measurement mode.

5. Press the f1 (cal) key to start the calibration.

a. If more than one channel is displayed in the measurement mode, press the p or q

key to highlight pH-Channel

6. Rinse the pH electrode and any other electrodes in use with distilled water, blot gently with

lint-free tissue to remove excess water and place into the pH buffer.

and press the f2 (select) key.

7. When the electrode and buffer are ready, press the f3 (start) key.

a. If using a stirrer probe, the stirrer probe will start stirring when the f3 (start) ke

ressed and stop stirring when the reading stabilizes.

8. Wait for the pH value on the meter to stabilize and perform one of the following actions:

a. Press the f2 (accept) key to accept the pH buffer value determined by the automatic

buffer recognition function. or

b. Press the f3 (edit) key to access the popup number entry screen and manually enter

the pH buffer value.

i. Press the p, q, t or u key to highlight a number or decimal point, press th

f3 (enter) key to select the highlighted item and repeat until the desired value is shown at the top of the screen.

ii. Press the f2 (done) key to save the value and exit the number entry screen.

iii. Press the f2 (accept) key to accept the manually entered value.

9. Press the f2 (next) key to proceed to the next pH buffer and repeat steps 2 through 4 or press the f3 (cal done) key to save and end the calibration. If five buffers are used, the calibration will save and end once the fifth value is accepted.

a. When performing a one point calibration, press the f2 (accept) key to accept th

isplayed slope value or press the f3 (edit) key, use the popup number entry screen to

enter a new slope value, press the f2 (done) key and then press the f2 (accept) key.

y is

10. The meter will display the calibration summary including the slope and export the data to the calibration log. Press the f1 (meas) key to proceed to the measurement mode or press the f2 (print) key to export the calibration data to a printer or computer.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 51

Page 52

Chapter 4 | Using the pH or pH/ISE Chann el

pH Calibration Editing

When the calibration summary is displayed, the calibration editing option can be selected to fix individual points without having to perform a full recalibration.

1. In the calibration summary display (after step 5 in the pH Calibration Procedure), press the f3 (cal edit) key.

2. Press the p or q key to highlight a calibration point to edit and press the f2 (select) key.

3. Press the p or q key to highlight Remeasure, Edit or Delete and press the f2 (select) key.

a. If Remeasure is selected, repeat steps 2 through 4 in the pH Calibration Procedure. b. If Edit is selected, press the f3 (edit) key, use the popup number entry screen to enter

a new pH buffer value, press the f2 (done) key and then press the f2 (accept) key. Select another calibration point to edit or press the f1 (back) key.

c. If Delete is selected, the calibration point will be deleted. If deleting the point changes it

to a one point calibration, enter the slope using the popup number entry screen.

4. The meter will display an updated calibration summary and export the data to the calibratio l

og. Press the f1 (meas) key to proceed to the measurement mode or press the f2 (print)

key to export the calibration data to a printer or computer.

52 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 53

Chapter 4 | Using the pH or pH/ISE Chann el

ORP Calibration P r ocedure (Relativ e m V Mode)

Orion Star A211 pH meters, Orion Star A214 pH/ISE meters, Orion Star A215 pH/conductivity meters and Orion Star A216 pH/RDO/DO meters can perform an ORP calibration in the relative mV (RmV) mode using one standard with easy to follow onscreen instructions to assist with the calibration process.

Use the Thermo Scientific Orion ORP standard (Catalog Number 967901 or 967961) or other ORP standard as desired. Prepare the electrode according to the instructions in the electrode manual. Connect all electrodes to be used to the appropriate meter inputs.

Make sure the meter measurement mode is set to RmV. For Star A215 and Star A216 meters, press the f3 (channel) key until the RmV channel is shown in the measurement mode.

1. Press the f1 (cal) key to start the calibration.

a. If more than one channel is displayed in the measurement mode, press the p or q

key to highlight pH-Channel

and press the f2 (select) key.

2. Rinse the electrode and any other electrodes in use with distilled water, blot gently with a

t-free tissue to remove excess water and place into the standard.

lin

3. When the electrode and standard are ready, press the f3 (start) key.

a. If using a stirrer probe, the stirrer probe will start stirring when the f3 (start) ke

ressed and stop stirring when the reading stabilizes.

4. Wait for the mV value on the meter to stabilize (indicated by the flashing stabilizing or solid ready icon) and perform one of the following actions:

a. Press the f2 (accept) key to accept the mV value.

b. Press the f3 (edit) key to access the popup number entry screen and manua lly enter

the mV value expected at the measured temperature.

i. Press the p, q, t or u key to highlight a number, decimal point or negative

sign; press the f3 (enter) key to select the highlighted item and repeat unti l the desired value is shown at the top of the screen.

ii. Press the f2 (done) key to save the value and exit the number entry scree n.

iii. Press the f2 (accept) key to accept the manually entered value.

5. The meter will display the calibration summary including the mV offset and export the data to the calibration log. Press the f1 (meas) key to proceed to the measurement mode o

ress the f2 (print) key to export the calibration data to a printer or computer.

y is

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 53

Page 54

Chapter 4 | Using the pH or pH/ISE Chann el

ORP Calibration Procedure (EH Units)

Orion Star A211 pH meters, Orion Star A214 pH/ISE meters, Orion Star A215 pH/conductivity meters and Orion Star A216 pH/RDO/DO meters can perform a one point automatic ORP calibration to the E when using the following items:

• Thermo Scientific Orion ORP standard (Catalog Number 967901 or 967961)

• Thermo Scientific Orion ORP electrode (Catalog Number 9678BNWP, 9778BNWP,

9180BNMD or 9179BNMD)

• Thermo Scientific Orion 4 M KCl filling solution (Catalog Number 900011) or 4 M KCl gel

(in the 9179BNMD electrode)

Orion ORP standard is nonhazardous, stable and will not change over time, so it is an ideal standard for any ORP measurement system. Always use fresh ORP standard. Prepare the ORP electrode according to the instructions in the electrode manual. Connect all electrodes to be used to the appropriate meter inputs.

value (relative to the Standard Hydrogen Electrode, 420 mV at 25 °C)

Make sure the meter measurement mode is set to ORP. For Star A215 and Star A216 meters, press the f3 (channel) key until the ORP channel is shown in the measurement mode.

1. Press the f1 (cal) key to start the calibration.

a. If more than one channel is displayed in the measurement mode, press the p or q

key to highlight pH-Channel

and press the f2 (select) key.

2. Rinse the electrode and any other electrodes in use with distilled water, blot gently with a lint-free tissue to remove excess water and place into the standard.

3. When the electrode and standard are ready, press the f3 (start) key.

a. If using a stirrer probe, the stirrer probe will start stirring when the f3 (start) ke

ressed and stop stirring when the reading stabilizes.

y is

4. Wait for the mV value on the meter to stabilize (indicated by the flashing stabilizing or solid ready icon) and press the f2 (accept) key once the mV value is stable.

5. The meter will display the calibration summary including the mV offset and export the data to the calibration log. Press the f1 (meas) key to proceed to the measurement mode o

press the f2 (print) key to export the calibration data to a printer or computer.

54 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 55

Chapter 4 | Using the pH or pH/ISE Chann el

ISE Calibration Procedure

Orion Star A214 pH/ISE meters can perform an ion concentration calibration using one to five standards with easy to follow onscreen instructions to assist with the calibration process.

Always use fresh standards and select standards that bracket the sample concentration and are one decade (ten times) apart in concentration. To accurately prepare calibration standards from a stock solution, serial dilution is recommended using calibrated pipettes. If ISA will be added to samples, the same ISA must be added to all standards prior to calibration to ensure a consistent dilution factor. If more than one standard is used for calibration, start with the lowest concentration standard and work up to the highest concentration standard last.

Prepare the ion selective electrode according to the instructions in the electrode manual. Connect all electrodes to be used to the appropriate meter inputs. Make sure the meter measurement mode is set to ISE.

1. Press the f1 (cal) key to start the calibration.

2. Rinse the ion selective electrode and any other electrodes in use with distilled water, blot gently with a lint-free tissue to remove excess water and place into the standard.

3. When the electrode and standard are ready, press the f3 (start) key.

a. If using a stirrer probe, the stirrer probe will start stirring when the f3 (start) ke

ressed and stop stirring when the reading stabilizes.

4. Wait for the value on the meter to stabilize and perform one of the following actions:

a. Press the f2 (accept) key to accept the displ ayed con centrat ion value.

b. Press the f3 (edit) key to access the popup number entry screen and manua lly enter

the concentration value.

i. Press the p, q, t or u key to highlight a number or decimal point, press th

(enter) key to select the highlighted item and repeat until the desired value is

shown at the top of the screen.

ii. Press the f2 (done) key to save the value and exit the number entry screen.

iii. Press the f2 (accept) key to accept the manually entered value.

5. Press the f2 (next) key to proceed to the next standard and repeat steps 2 through 4 or press the f3 (cal done) key to save and end the calibration. If five standards are used, the calibration will save and end once the fifth value is accepted.

y is

a. When performing a one point calibration, press the f2 (accept) key to accept the

displayed slope value or press the f3 (edit) key, use the popup number entry screen to enter a new slope value, press the f2 (done) key and then press the f2 (accept) key.

6. The meter will display the calibration summary including the slope and export the data to the calibration log. Press the f1 (meas) key to proceed to the measurement mode or press the f2 (print) key to export the calibration data to a printer or computer.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 55

Page 56

Chapter 4 | Using the pH or pH/ISE Chann el

ISE Calibration Editing

When the calibration summary is displayed, the calibration editing option can be selected to fix individual points without having to perform a full recalibration.

1. In the calibration summary display (after step 5 in the ISE Calibration Procedure), press the f3 (cal edit) key.

2. Press the p or q key to highlight a calibration point to edit and press the f2 (select) key.

3. Press the p or q key to highlight Remeasure, Edit or Delete and press the f2 (select) key.

a. If Remeasure is selected, repeat steps 2 through 4 in the ISE Calibration Procedure. b. If Edit is selected, press the f3 (edit) key, use the popup number entry screen to enter

a new standard value, press the f2 (done) key and then press the f2 (accept) key. Select another calibration point to edit or press the f1 (back) key.

c. If Delete is selected, the calibration point will be deleted. If deleting the point changes it

to a one point calibration, enter the slope using the popup number entry screen.

4. The meter will display an updated calibration summary and export the data to the calibratio l

og. Press the f1 (meas) key to proceed to the measurement mode or press the f2 (print)

key to export the calibration data to a printer or computer.

56 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 57

Chapter 4 | Using the pH or pH/ISE Chann el

Measurement Proced ure

Prepare the electrodes according to the instructions in the electrode manuals. Connect all electrodes to be used to the appropriate meter inputs. Make sure the electrodes are recently calibrated and working correctly.

Ensure the meter measurement mode is set to the desired measurement parameter. For Orion Star A215 and Orion Star A216 meters, press the f3 (channel) key until the desired channel or channels are shown in the measurement mode.

1. Rinse the electrodes with distilled water or appropriate solution, blot gentl y with a lint-free tissue to remove excess water and place into the sample.

2. Start the measurement and wait for the reading to stabilize or reach the predefined time.

a. Auto-Read: Press the measure (esc) key to start the measurement. If using a stirrer

probe, the stirrer probe will start stirring when the measure (esc) key is pressed and stop stirring when the measurement stabilizes.

b. Continuous: Measurements will start immediately when in the measurement mode. If

sing a stirrer probe, press the stirrer key to start and stop stirring.

c. Timed: Measurements will start immediately when in the measurement mode. If using a

stirrer probe, press the stirrer key to start and stop stirring.

3. Once the measurement is stable or reaches the set time, record all applicable parameters.

a. Auto-Read: Once the measurement is stable, it will be locked and held on the display

and the AR icon will remain solid. If the data log function is enabled, the measurement will be exported to the data log.

b. Continuous: The flashing Stabilizing icon will update to the solid Ready icon when th

measurement is stable. If the data log function is enabled, press the log/print key to

xport the measurement to the data log.

c. Timed: Measurements will be recorded at the predefined time interval. If the data log

function is enabled, the < icon will be shown when each time interval has elapsed and the measurement is exported to the data log.

4. Remove the electrodes from the sample, rinse with distilled water or appropriate solu tion b

lot gently with a lint-free tissue to remove excess water and place into the next sample.

5. Repeat steps 2 through 4 for all samples. When all samples have been measured, store the electrodes according to the instructions in the electrode manuals.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 57

Page 58

CHAPTER 5 Using the Conductivity Channel

Use the Orion Star A212 cond uctivity meter or Orion Star A215 pH/conductivity meter to measure conductivity, salinity, TDS, resistivity and temperature. The following chapter provides instructions on connecting sensors, calibrating the system and measuring these parameters.

Meter and Sensor Preparation

1. Familiarize yourself with general meter operation and prepare the meter and accessories according to the instructions in

a. It is recommended that sensors be placed in the meter-attached electrode stand for

easy movement in and out of containers during calibration, measurement and storage.

Chapter 2 Meter Basics.

2. Refer to the instructions in calibration and alarm settings within the COND Channel setup menu and data transfer, data log, date and time, language, sounds, stirrer speed, display contrast, auto-shutoff, user ID and sample ID settings within the Instrument Settings setup menu.

3. Connect all necessary electrodes, probes and sensors to the appropriate meter inputs.

a. Connect a conductivity sensor to the 8 pin MiniDIN meter input. If the conductivit

ensor has built-in temperature, the temperature will also be measured when the

conductivity sensor is connected with the meter.

b. Connect the stirrer probe (Catalog Number 096019) to the Stirrer meter input.

4. Prepare all connected sensors for use as instructed in the sensor manuals.

58 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Chapter 3 Meter Setup Menus to customize measurement,

Page 59

Chapter 5 | Using the Conductivity Cha n nel

Conductivity Cal ibration Procedure

Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters can perform a conductivity calibration using one to five conductivity standards with easy to follow onscreen instructions to assist with the calibration process or by the manual entry of the certified conductivity cell consta nt (K) v alue.

Always use fresh standards and select standards that are near the expected sample conductivity. Prepare the conductivity sensor according to the instructions in the sensor manual. Connect all sensors to be used to the appropriate meter inputs.

Make sure the meter measurement mode is set to conductivity (Cond). For Star A215 meters, press the f3 (channel) key until the conductivity channel is shown in the measurement mode.

Note: For an automatic calibration, enter the nominal cell constant of the conductivity sens o r in the channel-specific setup menu and use Orion 100 μS, 1413 μS and/or 12.9 mS standards.

1. Press the f1 (cal) key to start the calibration.

a. If more than one channel is displayed in the measurement mode, press the p or q

key to highlight Conductivity-Channel

2. Rinse the conductivity sensor and any other electrodes in use with distilled water, blot gently with a lint-free tissue to remove excess water and place into the conductivity standard.

3. When the sensor and standard are ready, press the f3 (start) key.

a. If using a stirrer probe, the stirrer probe will start stirring when the f3 (start) ke

ressed and stop stirring when the reading stabilizes.

4. Wait for the value on the meter to stabilize and perform one of the following actions:

a. Press the f2 (accept) key to accept the conductivity value d etermin ed by automati c

standard recognition function (Orion 100 μS, 1413 μS and 12.9 mS standards only). or

b. Press the f3 (edit) key to access the popup number entry screen and manua lly enter

the conductivity standard value expected at the measured temperature.

i. Press the p, q, t or u key to highlight a number or decimal point, press th

f3 (enter) key to select the highlighted item and repeat until the desired value is shown at the top of the screen.

ii. Press the f2 (done) key to save the value and exit the number entry screen.

iii. Press the f2 (accept) key to accept the manually entered value.

and press the f2 (select) key.

y is

5. Press the f2 (next) key to proceed to the next standard and repeat steps 2 through 4 or press the f3 (cal done) key to save and end the calibration. If five standard are used, the calibration will save and end once the fifth value is accepted.

6. The meter will display the calibration summary and export the data to the calibration log. Press the f1 (meas) key to proceed to the measurement mode or press the f2 (print) key t export the calibration data to a printer or computer.

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 59

Page 60

Chapter 5 | Using the Cond uctivity Channel

Conductivity Calibration Editing

When the calibration summary is displayed, the calibration editing option can be selected to fix individual points without having to perform a full recalibration.

1. In the calibration summary display (after step 5 in the Conductivity Calibration Procedure), press the f3 (cal edit) key.

2. Press the p or q key to highlight a calibration point to edit and press the f2 (select) key.

3. Press the p or q key to highlight Remeasure, Edit or Delete and press the f2 (select) key.

a. If Remeasure is selected, repeat steps 2 through 4 in the Calibration Procedure. b. If Edit is selected, press the f3 (edit) key, use the popup number entry screen to enter

a new conductivity standard value, press the f2 (done) key and then press the f

(

accept) key. Select another calibration point to edit or press the f1 (back) key.

c. If Delete is selected, the calibration point will be deleted.

4. The meter will display an updated calibration summary and export the data to the calibratio

og. Press the f1 (meas) key to proceed to the measurement mode or press the f2 (print)

l key to export the calibration data to a printer or computer.

Alternative Certified Cell Constant Entry Calibration Procedure

When using the cell constant entry calibration procedure, enter the certified cell constant (K) value that is printed on the conductivity sensor cable or certificate of calibration.

1. Press the f1 (cal) key to start the calibration.

a. If more than one channel is displayed in the measurement mode, press the p or q

key to highlight Conductivity-Channel

2. Press the f2 (cell K) key.

3. Wait for the conductivity value on the meter to stabilize and then press the f3 (edit) key to access the popup number entry screen and enter the certified cell constant value.

a. Press the p, q, t or u key to highlight a number or decimal point, press the f3

(enter) key to select the highlighted item and repeat until the desired value is shown at

the top of the screen. b. Press the f2 (done) key to save the value and exit the number entry screen. c. Press the f2 (accept) key to accept the entered cell constant value.

and press the f2 (select) key.

4. Press the f2 (accept) key to save and end the calibration and export the data to the calibration log. The meter will automatically proceed to the measurement mode .

5. The conductivity measurement system is now calibrated. Verify the calibration by reading a known conductivity standard or according to your SOP.

60 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Page 61

Chapter 5 | Using the Cond uctivity Channel

Temperature

Orion 111.9mS

Orion 12.9mS

Orion 1413μS

Orion 147μS

Orion 100μS

65.10

7.135

776

66.84

7.344

799

56 2 68.59

7.555

822

58 3 70.35

7.768

846

59 4 72.12

7.983

870

61 5 73.91

8.200

894

75.70

8.418

918

77.50

8.638

943

66 8 79.32

8.860

968

101

68 9 81.15

9.084

992

103

82.98

9.309

1017

106

84.83

9.535

1043

108

86.69

9.763

1068

111

88.56

9.993

1094

114

90.45

10.22

1119

116

92.34

10.46

1145

119

94.24

10.69

1171

122

96.15

10.93

1198

125

98.08

11.16

1224

127

100.0

11.40

1251

130

102.0

11.64

1277

133

103.9

11.88

1304

136

105.9

12.12

1331

138

107.9

12.36

1358

141

109.9

12.61

1386

144

111.9

12.85

1413

147

100

113.9

13.10

1441

150

102

115.9

13.35

1468

153

104

117.9

13.59

1496

156

106

120.0

13.84

1524

159

108

122.0

14.09

1552

161

110

124.1

14.34

1580

164

112

126.2

14.59

1608

167

114

128.3

14.85

1636

170

117

130.4

15.10

1665

173

119

132.5

15.35

1693

176

121

134.6

15.61

1722

179

123

136.7

15.86

1751

182

125

138.9

16.12

1780

185

127

141.0

16.37

1808

188

129

143.2

16.63

1837

191

131

145.4

16.89

1866

194

134

147.6

17.15

1896

197

136

149.8

17.40

1925

200

138

152.0

17.66

1954

203

140

154.2

17.92

1983

206

142

156.4

18.18

2013

209

145

158.7

18.44

2042

212

147

160.9

18.70

2071

215

149

163.2

18.96

2101

219

151

165.4

19.22

2130

222

154

Conductivity Standards vs. Temperat ure Table

(°C)

Standard (mS/cm)

Standard (μS/cm)

Thermo Scientific Orion Star A210 Series Benchtop Meter User Manual | 61

Page 62

Chapter 5 | Using the Cond uctivity Channel

Resistor Number

Nominal Resistance

Nominal Conductance

Nominal Acceptance Range

1010001-A

1000 KΩ

1 μS

0.984 to 1.016 μS

1010001-B

100 KΩ

10 μS

9.930 to 10.07 μS

1010001-C

10 KΩ

100 μS

99.30 to 100.7 μS

1010001-D

1 KΩ

1000 μS

993.0 to 1007 μS

1010001-E

100 Ω

10 mS

9.930 to 10.07 mS

1010001-F

10 Ω

100 mS

99.30 to 100.7 mS

Conductivity Meter Verification Procedure

Use the Orion Star series conductivity meter verification kit, Catalog Number 10100 01, to verify the accuracy of the conductivity measurements on Orion Star A212 conductivity meters and Orion Star A215 pH/conductivity meters. The measured conductivity value of each resistor should fall within the relative accuracy of the resistor (±0.1% of the actual resistor conductance) plus the relative accuracy of the meter (±0.5% of reading ±1 digit for readings greater than 3 μS/cm or ±0.5% of reading ±0.01μS/cm for readings less than or equal to 3 μS/cm).

1. Ensure that the conductivity resistor kit is cer tif ie d and has a valid calibration date.

2. In the measurement mode, press the f1 (cal) key.

a. If more than one channel is displayed in the measurement mode, press the p or q

key to highlight Conductivity-Channel

3. Press the f2 (cell K) key.

4. Press the f3 (edit) key to access the popup number entry screen and enter a cell constant value of 1.0000.

and press the f2 (select) key.

a. Press the p, q, t or u key to highlight a number or decimal point, press the f3

(enter) key to select the highlighted item and repeat until the desired value is shown at

the top of the screen. b. Press the f2 (done) key to save the value and exit the number entry screen. c. Press the f2 (accept) key to accept the entered cell constant value.

5. The meter will automatically proceed to the measurement mode and Cell Constant: 1.0000 ill be shown on the display.

6. Connect a resistor to the meter, press the measure (esc) key to start the measurement,

wait for the measurement value to stabilize and then record the displayed condu ct iv ity valu e of the resistor

. Repeat step 6 for all six resist ors in the kit.

62 | Orion Star A210 Series Benchtop Meter User Manual Thermo Scientific

Note: These are the nominal values for the resistors only. The actual resistance and conductance is printed on each resistor and the actual acceptance range must be calculated from the actual value on each resistor.

Page 63

Chapter 5 | Using the Cond uctivity Channel

Measurement Proced ure

Prepare the sensors according to the instructions in the sensors manuals. Connect all electrodes, sensors and probes to be used to the appropriate meter inputs. Make sure the sensors are recently calibrated and working correctly.

Ensure the meter measurement mode is set to the desired measurement parameter. For Star A215 meters, press the f3 (channel) key until the desired channel or channels are shown in the measurement mode.

1. Rinse the sensors with distilled water or appropriate solution, blot gently with a lint-free

tissue to remove excess water and place into the sample.