Thermo Scientific Orion Star A215
Benchtop pH/Conductivity Meter
Instruction Sheet
English
pH /
COND
Preparation
Power Source
1. Power adapter (included with meter)
a. Select the appropriate wall socket plug plate.
b Slide off the clear plastic cover from the plug plate.
c. Slide the plug plate into the groove on the back of the
power adapter.
d. Connect the power adapter to the meter and power outlet.
2. Batteries (sold seperately)
a. Select four AA alkaline batteries.
b. Confirm that the meter is powered off.
c. Remove the battery compartment cover – push down on
the battery compartment tab and lift the battery cover up.
d. Orientate the batteries as shown in the battery
compartment housing and insert batteries.
e. Replace the battery compartment cover.
Electrodes and Other Connections
1. Prepare the pH electrode, conductivity cell and any other
applicable electrodes according to the directions in the electrode
user guide.
2. Connect the appropriate items as labeled on the meter and as
shown in the figure to the right:
Electrode Arm
The electrode arm can be attached to either side of the
meter. Unpack the electrode arm and base. Choose the side
of the meter to attach the arm. Find a clean surface and turn
the meter over. Release the existing screw from the back
of the meter. Align the electrode arm base with the circles
at the bottom of the meter. The metal post on the electrode
arm base should be on the same side as the display. Take
the screw that was removed and use it to secure the
electrode arm base to the meter. Turn the meter over. Place
the hole at the base of the electrode arm onto the metal
post on the electrode arm base.
For additional information on meter setup and operation, refer to
the reference guide. The reference guide is on the included CD
and available at
www.thermoscientific.com/water.
Push down on tab and lift the
battery cover
Orion Star A215 Benchtop
Ground
DO/RDO
Power
Stirrer
ATC/CON
Ref.
USB
RS232
BNC
