Hanna Instruments Edge Instruction Manual

Hanna Instruments Edge Instruction Manual Manual pdf 54 page image

Operational Guide54PREPARATIONPour a small quantity of the calibration solution into a beaker. If possible, usea plastic beaker to minimize any EMC interferences.Before pressing CAL verify in SETUP:• Basic mode is off• Salinity Scale is NaCl%Use the RANGE key to select the Salinity measurement. The NaCl% tag willbe on. NaCl calibration is a single point calibration at 100.0% NaCl. Use theHI 7037L calibration solution (sea water solution) as a 100% NaCl calibrationsolution.ProcedureRinse the probe with some of the HI 7037L calibration solution or deionizedwater. Shake off excess solution. Submerse the probe in the calibrationsolution. The sleeve holes must be completely submersed. If possible, centerthe probe in the beaker away from the bottom or beaker walls. Raise andlower the probe to refill the center cavity and tap the probe repeatedly toremove any air bubbles that may be trapped inside the sleeve.Press CAL to enter calibration. The ” “, ”STIR” and“CAL” tags will turn on and the 1st LCD line willdisplay the percent NaCl reading, the 2nd LCD linewill display the temperature and the 3rd LCD line willdisplay ”WAIT” message until the reading is stable.When the reading is stable and close to the standard,“CFM” tag will blink and “SOLUTION STANDARD” willscroll.Press CFM to confirm calibration.% NaClCALIBRATION