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Toll Free: 1-800-225-1480
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Dom. Fax: 1-978-232-6015
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Europe
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England, CB7 4ET
Tel: 44-1353-666111
Fax: 44-1353-666001
Asia Pacific
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#04-16/24, Singapore 139949
Tel: 65-6778-6876
Fax: 65-6773-0836
www.thermo.com/water
Environmental Instruments
Water Analysis Instruments
A
B
C
D
E
F
pH
©2008 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific Inc.
and its subsidiaries. ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc.
Preparation
1. Power adapter – Select the appropriate wall outlet plug and slide the plug
plate into the groove on the back of the adapter.
See A
.
2. Prepare the electrode according to the directions in the electrode user guide.
In general, these steps include:
• Gently remove the protective cap, sleeve or storage bottle from the
electrode and save it for electrode storage.
• If the electrode is refillable, remove the fill hole cover and fill the electrode
with the appropriate electrode filling solution.
See B
.
• Soak the electrode in pH electrode storage solution, Cat. No. 910001, or
ROSS
®
pH electrode storage solution, Cat. No. 810001.
See C.
3. Meter connections – Connect the power adapter to the meter and then to the
wall outlet.
See D
. Connect the pH electrode to the BNC input on the meter.
See E
. Connect the ATC probe to the 8 pin miniDIN input on the meter.
See F
.
Note:
All unused inputs on the meter should be covered with the black caps.
Meter Overview
1. To power on the meter, press the
power
key.
2. In the measurement mode, press the
up arrow
or
down arrow
key to change
the measurement units on the top display line to pH, mV, RmV or a blank line.
3. In the setup mode, press the
line select
key to choose the top, middle or
bottom display line. The icon will point to the selected line.
4. To escape out of any meter function, press and hold the
measure
key until the
meter returns to the measurement mode.
5. The 2-Star pH meter can be calibrated using one to three pH buffers.
Key Description
power
up arrow
line select
calibrate
down arrow
setup
measure
digit
view log
Meter Connections
For the complete Orion Star
™
and Star Plus meter user guide, visit www.thermo.com/water.
Thermo Scientific Orion
2-Star pH Benchtop Meter
Quick Start Guide
English
Pin Tip –
Reference
BNC – pH
or ORP
8 Pin MiniDIN
– ATC
RS232
Ground
Power
253168-001 Rev. B 08-08
