4
Thermo Scientific Orion Star A213 Benchtop and Star A223 and Star A323 Portable RDO/DO Meter Reference Guide
Electrodes and Other Connections
1. Prepare the RDO optical dissolved oxygen probe or polarographic dissolved oxygen probe 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 below:
t (SPVOEo*OQVUGPSBHSPVOEXJSFXJUIBTUBOEBSEQJOUJQDPOOFDUPS
Orion Star A213 benchtop meters only
.
t %03%0o*OQVUGPS3%0PQUJDBMEJTTPMWFEPYZHFOQSPCFPSQPMBSPHSBQIJDEJTTPMWFEPYZHFOQSPCFXJUI
QJO.JOJ%*/DPOOFDUPS
t 1PXFSo*OQVUGPSUIFQPXFSBEBQUFS
t 4UJSSFSo*OQVUGPSUIFTUJSSFSQSPCF$BU/P
Orion Star A213 benchtop meters only.
t 64#o*OQVUGPSUIF64#DBCMFVTFEUPDPOOFDUUIFNFUFSUPBQSJOUFSPSDPNQVUFS
t 34o*OQVUGPSUIF34DBCMFVTFEUPDPOOFDUUIFNFUFSUPBQSJOUFSPSDPNQVUFS
Ground
Ref.
DO/RDO
ATC/CON
BNC
Power
Stirrer
USB
RS232
DO/
RDO
ATC/
COND
POWER
USB
REF
BNC
RS232
Star A213 Meter Back Panel
Star A223 and Star A323 Meter Back Panel