Hanna Instruments HI 98360 - Manual (Page 12)

12
EC calibration on these meters is a single point procedure. Selectable
calibration points are: 0.0 for offset and 84.0 µS/cm, 1413 µS/cm,
5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm,
111.8 mS/cm for slope.
To enter EC calibration select the EC range and
press the
CAL key.
Note: TDS reading is automatically derived from the EC reading
and no specific calibration for TDS is needed. Pressing
CAL while TDS range is selected has no effect.
Rinse the probe with some of the calibration solution or deionized water.
Submerse the probe into the solution. The sleeve holes must be
completely submersed. Tap the probe repeatedly to remove any air
bubbles that may be trapped inside the sleeve.
For zero calibration, suspend the dry probe in air.
This calibration is performed in order to correct the reading arround
0.0 µS/cm.
Press
CAL and the “CALIBRATION” tag is
displayed and “ NOT READY”, “~” and “ ”
will blink. The primary LCD will display the EC
reading. The secondary LCD will display the
standard value.
Select the desired calibration value with the
ARROW keys, if necessary.
E C / T D S C A L I B R A T I O N E C / T D S C A L I B R A T I O N E C / T D S C A L I B R A T I O N E C / T D S C A L I B R A T I O N E C / T D S C A L I B R A T I O N
NaCl MEASUREMENTS
Percent sodium chloride on these meters refers to percentage of seawater
salinity. 100% is equal to seawater. The scale goes from 0 - 400%.
Press the
Range key while in EC range until NaCl is displayed on the LCD.
The instrument will display the NaCl reading on the primary LCD and the
temperature reading on the secondary LCD line.
• If the reading is out of range, the full-scale value (400.0%) will be
displayed blinking.