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, measurement and storage.
2.
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 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 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.
C H A P T E R 4
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Orion Star A210 Series Benchtop Meter User Manual
Thermo Scientific
Summary of Contents for Orion Star A210 Series
Page 5: ......
