Hanna Instruments HI 9828, Instruction Manual, Page: 36 / 60

36
4.4 CONDUCTIVITY CALIBRATION
For a correct conductivity calibration the probe
sleeve must be always inserted.
The conductivity calibration menu offers 3 differ-
ent type of calibration: Conductivity, Actual con-
ductivity and Salinity.
Conductivity option allows a 1 point calibration with a standard solution select-
able by the user. This calibration is temperature compensated.
The “Actual conductivity” option allows a custom calibration with a known ac-
tual conductivity solution (not temperature compensated). This option is useful
for calibrating without knowing the temperature effects on readings.
The “Salinity” option allows calibrations with a standard salinity solution.
The 3 ranges are related, if one of them is calibrated, the other two are cali-
brated too.
4.4.1 Procedure
After choosing the conductivity calibration mode in the main calibration menu,
select the type of calibration with the arrow keys and then press OK.
Conductivity
• Fill a beaker with a standard conductivity solution (see ACCESSORIES sec-
tion).
• Immerse the probe with its sleeve in the solution and wait for the measure
stability.
• The meter shows on the primary display the actual reading and on the second-
ary display the standard value.
• To change the standard value, press CAL. POINT. On display appear the pos-
sible values of standard solutions. The available values are: 84μS/cm, 1413 μS/