31
Thermo Scientific Orion Star A212 Benchtop and Star A222 and Star A322 Portable Conductivity Meter Reference Guide
Meter Checkout (Conductivity)
Note: Requires the conductivity calibration resistor kit for Orion Star A series conductivity meters, Cat. No. 1010001,
which must be purchased separately.
5IFDPOEVDUJWJUZDBMJCSBUJPOLJUDPOUBJOTTJYSFTJTUPSTUIBUTJNVMBUFTUBOEBSEDPOEVDUBODFWBMVFTPOBNFUFS5IF
resistors may be used to verify proper meter function by comparing the meter reading to the conductance of the
resistor. The conductivity calibration kit verifies proper meter function only. After the meter function is verified, the
conductivity cell must be calibrated. Calibrate the cell constant of the conductivity cell according to the meter and cell
VTFSHVJEFT&BDISFTJTUPSJTMBCFMFEBMQIBCFUJDBMMZ5IFBDUVBMSFTJTUBODFBOEDPOEVDUBODFWBMVFTBSFQSJOUFEPOFBDI
SFTJTUPS5IFOPNJOBMSFTJTUBODFBOEDPOEVDUBODFWBMVFTBSFMJTUFEPOUIFMBCFMPGUIFDBMJCSBUJPOLJUCPYGPSSFGFSFODF
1. Remove the conductivity cell and all other electrodes from the meter.
1FSGPSNBNBOVBMDPOEVDUJWJUZDBMJCSBUJPOPOUIFNFUFSBOETFUUIFDFMMDPOTUBOUUPDN
.
4FUUIFUFNQFSBUVSFWBMVFUP¡$BOEUVSOUIFUFNQFSBUVSFDPNQFOTBUJPOPGG
"UUBDIBSFTJTUPSUPUIFNFUFSCZBMJHOJOHUIFUBCTPOUIFSFTJTUPSBOENFUFS
1VTIUIFSFTJTUPSJOVOUJMJUJTmSNMZJOQMBDF*GUIFBMJHONFOUJTJODPSSFDUUIFSFTJTUPSBOEPSNFUFSJOQVU
can be damaged.
8IFOUIFNFUFSJOEJDBUFTBTUBCMFDPOEVDUJWJUZWBMVFDPNQBSFUIFEJTQMBZFEWBMVFUPUIFBDUVBMDPOEVDUBODFPGUIF
SFTJTUPS5IFEJTQMBZFEDPOEVDUJWJUZWBMVFGPSFBDISFTJTUPSTIPVMEGBMMXJUIJOUIFBDDVSBDZTQFDJmDBUJPOPGUIFNFUFS
QMVTPGUIFBDUVBMSFTJTUPSDPOEVDUBODF4JODFUIFSFTJTUPSLJUTBSFNBEFUPUFTUUIFBDDVSBDZPGUIFNFUFSJUJT
JNQPSUBOUUIBUFBDIEJTQMBZFESFTJTUPSWBMVFGBMMTXJUIJOUIFNFUFSBDDVSBDZTQFDJmDBUJPO
