YSI 6000UPG - Manual (Page 58)

4-9
This message will disappear when the unattended sampling is over and you will be able to interact
with the sonde via the menu. You will be then be given the option to discontinue the unattended
sample as shown below.
To stop the Unattended study, enter “Y” and press Enter.
4.2 CALIBRATE
All of the 6000 UPG sensors (except temperature) require periodic calibration to assure high
performance. Select 2. Calibrate from the sonde Main menu, the Calibrate menu will be
displayed.
Select this option to calibrate the conductivity probe and a second menu will offer you the options
of calibrating in Specific Conductance, Salinity, or Conductivity. After selecting the option of
choice (Specific Conductance is normally recommended), you will be asked to enter the value of
the standard used during calibration. Be certain that the units are correct. After pressing Enter,
** INSTRUMENT IS IN UNATTENDED MODE **
Start date and time : 05/31/96 11:04:08
Duration (days) : 30.000
Interval (minutes) : 2
Site description : First-test
UNATTENDED mode active. Cancel (Y/N)?
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Calibrate
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1. Conductivity
6. pH
2. DO% 7. Ammonium
3. DO mg/L 8. Nitrate
4. Depth 9. Turbidity
5. ORP A. TDG
Select option (0 for previous menu):
1. Conductivity