Thermo Scientific Orion Star A113 User manual

Thermo Scientific Orion Star A113 Benchtop and
Star A123 Portable Dissolved Oxygen Meters
Reference Guide

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Thermo Scientific Orion Star A113 Benchtop & Star A123 Portable Dissolved Oxygen Meters
Table of Contents
Chapter 1 Introduction ..........................................................1
Chapter 2 Meter Overview.......................................................3
Connections.......................................................... 3
DisplayInformation ................................................... 4
KeypadInformation ................................................... 5
MeterMaintenance................................................... 5
Chapter 3 Meter Setup ..........................................................7
NavigatingtheSetupMenu ............................................ 7
SetupExamples....................................................... 9
DO Calibration Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ReadTypeSelection..............................10
Chapter 4 Calibration and Measurement .........................................11
DOCalibrationandMeasurement...................................... 11
EnteringBarometricPressure.......................11
Entering Salinity Correction Value ....................11
DOCalibration...................................12
Water-SaturatedAirCalibration..............12
ManualCalibration(WinklerTitration)..........12
DOMeasurement................................13
Temperature Measurement and Calibration ............................. 13
TemperatureMeasurement.........................13
TemperatureCalibration ...........................14
Chapter 5 Data Storage and Review .............................................15
Automatic Datalog with AUTO-READ™Mode........................... 15
Manual Datalog with Continuous Read Mode ........................... 15
ViewingStoredReadings(theDataLog) ............................... 15
Chapter 6 Customer Services ...................................................17
MeterErrorCodes.................................................... 17
TroubleshootingGuide................................................ 18
Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warranty and Registration ............................................ 18
WEEECompliance ................................................... 18
Declaration of Conformity ............................................. 19
MeterSpecifications................................................. 20
OrderingInformation................................................. 21
Chapter 7 Appendix............................................................23
SalinityCorrection................................23
Notes............................................................... 24

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1
Thermo Scientific Orion Star A113 Benchtop & Star A123 Portable Dissolved Oxygen Meters
Chapter 1 Introduction
Thank you for your purchase of the Orion Star A113 benchtop dissolved oxygen (DO) or Star A123 portable dissolved
oxygen (DO) meter. These meters are capable of measuring dissolved oxygen levels in % saturation or mg/L units,
and temperature of the solution and the membrane. These meters are to be used with Orion’s Polarographic dissolved
oxygen probe (sold separately).
The Orion Star A113 benchtop DO meters are IP54-rated. The Orion Star A123 portable DO meters feature a
waterproof, IP67-rating.
Please read this reference guide thoroughly. Any use outside of these instructions may invalidate your warranty and
cause permanent damage to the meter

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3
Thermo Scientific Orion Star A113 Benchtop & Star A123 Portable Dissolved Oxygen Meters
Chapter 2 Meter Overview
Connections
1. Power source:
a. Power adapter (included with Orion Star A113 benchtop DO meters, sold separately for Star A123
portable DO meters) – Select the appropriate wall socket plug. Slide off the clear plastic cover, and slide
on the plug plate into the groove on the back of the adapter.
b. Batteries (included with and factory-installed on Star A123 portable DO meters, sold separately for Star
A113 benchtop DO meters) – Select four AA batteries. Confirm that the meter is off and remove the
battery compartment cover. On the Star A123 portable meter, to remove the battery compartment cover:
i. Loosen the screws.
ii. Release the top portion of the battery compartment from the meter (using a coin or your finger.)
iii. Release the bottom portion of the battery compartment (using a coin or your finger). Insert batteries
as shown in the battery compartment housing.
Push down on tab and lift the
battery cover
Orion Star A113 Benchtop
Remove screws
Orion Star A123 Portable
Figure 1
2. Prepare the DO probe according to the probe instructions. In general:
a. Unscrew the membrane cap from the DO probe, fill the membrane cap about ¾ full with polarographic
electrolyte solution and screw the membrane cap onto the DO probe.
b. Connect the DO probe to the meter and allow the probe to polarize for about 30 to 60 minutes.
Note: A DO reading of zero and no change in temperature indicates that the DO probe is not fully
connected to the meter. Disconnect the DO probe and then firmly reconnect the DO probe to the meter.
3. Connect the appropriate item as labeled on the meter and as shown in figure 1:

4Thermo Scientific Orion Star A113 Benchtop & Star A123 Portable Dissolved Oxygen Meters
Display Information
Display Icon Description
MEAS Indicates that the meter is in the measurement mode.
SETUP Indicates that the meter is in setup mode.
CAL Indicates that the meter is the calibration mode.
MAN Shown when a manual calibration (Winkler titration) is being done.
AUTO Shown during water-saturated air calibration. Default setting.
Shows the battery status (more bars = more power remaining).
Blinks when power is low and the battery needs to be changed.
(Batteries included and factory-installed with the portable meter Orion Star A123 DO meter.)
Shown when the meter is running on AC power. (Adapter included with the benchtop meter
Orion Star A113 DO meter.)
Shown when the meter is on AUTO-READ mode. Default setting. AR and unit of measurements will blink until the
reading is stable. When the reading is stable it is held on the screen and AR is lit.
Press to take a new reading.
READY Unit of measure will blink until the reading is stable. When the reading is stable, READY is lit.
Appears during calibration and after a calibration is done.
Displayed when a reading is stored into the memory.
Displayed when viewing stored readings.
Secondary
display Upper display which shows temperature reading in measurement mode and setup menu in setup mode.
Primary display Lower, larger display showing measured value in selected mode.
Instructions Located below the primary display. These phrases aid in the setup menu and calibration modes.
ne

5
Thermo Scientific Orion Star A113 Benchtop & Star A123 Portable Dissolved Oxygen Meters
Keypad Information
Meter Maintenance
For routine meter maintenance, dust and wipe the meter with a damp cloth. If necessary, warm water or a mild water-
based detergent can be used. Meter maintenance can be performed on a daily, weekly or monthly basis, as required by
the environment in which the meter is operated. Immediately remove any spilled substance from the meter using the
proper cleaning procedure for the type of spill.
In the measurement screen: Press to take a measurement.
In the setup screen: Press to escape the setup menu.
In the calibration screen: Press to abort calibration.
Press to turn the meter on or off.
In the measurement screen:
Press to switch between modes.
In the setup screen:
Press to confirm the selection.
Press to enter the calibration mode. Press to enter the setup mode.
In the measurement screen:
Press to store the data on the screen in continuous
read mode and with data logging on.
In the setup screen:
Press to scroll up in the list of options.
In the measurement screen:
Press to see the stored data.
In the setup screen:
Press to scroll down in the list of options.

6Thermo Scientific Orion Star A113 Benchtop & Star A123 Portable Dissolved Oxygen Meters
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