Hach-Lange SI794 D User Manual - Manual (Page 67)

Display Action Remark
Enter setpoint value for
saturation
Select position using ,
edit number using ,
press enter to proceed.
Display of new slope and
zero point (related to 25 °C at
1013 mbars)
Press enter to end calibration.
Default: last value
entered
Place sensor in process.
The percent saturation is
shown in the main display
alternately with “Hold”;
“enter“ blinks.
Press enter to exit calibration.
After end of
calibration, the out-
puts remain in Hold
mode for approx.
20 sec.
New calibration:
Press cal key.
Information on saturation calibration (SAT)
• The calibration medium must be in equilibrium with air (percent saturation for
water is 100 %). Oxygen exchange between water and air is very slow. To speed
up the adjustment processes, make sure that there is a steady medium flow
during calibration.
• If the percent saturation is known from a simultaneous measurement, it can be
entered manually.
• For 2-point calibration, perform zero calibration first.
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