YSI Pro2030 - Manual (Page 18)

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Figure 11, Erase data mode.
Use the up or down arrow key to select Erase Data Set, Erase All Sets or the ESC-
Exit function box, then press enter to confirm.
Select ESC-Exit and press enter to exit Erase mode without erasing any data.
Select Erase Data Set and press enter to erase the data set that was displayed
before entering Erase mode. For example, if data set 12 was displayed before
entering erase mode, and Erase Data Set is selected, Data Set 12 will be erased
from memory and the data sets AFTER that number will move up to keep them
sequential. For example, if there are15 records and number 12 is erased then 13
becomes 12, 14 becomes 13, and 15 becomes 14. The instrument will return to
Data mode after erasing one data set.
Select Erase All Data Sets and press enter to clear the Pro2030 memory and
return to Data mode.
EXITING DATA MoDE
While in Data mode, press enter to access the bottom functions. Next, highlight
the ESC-Exit box and press enter to return to the Run screen.
C A R E , M A I N T E N A N C E A N D
S T o R A G E
This section describes the proper procedures for care, maintenance and storage
of the sensors. The goal is to maximize their lifetime and minimize down-time
associated with improper sensor usage.
general MaIntenance
GENERAL MAINTENANCE - GASKET AND o-RINGS
The instrument utilizes a gasket and o-rings as seals to prevent water from entering
the battery compartment and the sensor port. Following the recommended
procedures will help keep the instrument functioning properly.
If the gasket, o-rings and sealing surfaces are not maintained properly, it is
possible that water can enter the battery compartment and/or sensor port of
the instrument. If water enters these areas, it can severely damage the battery
terminals or sensor port causing loss of battery power, false readings and corrosion
to the sensors or battery terminals. Therefore, when the battery compartment lid
is removed, the gasket that provides the seal should be carefully inspected for
contamination (i.e. debris, grit, etc.) and cleaned with water and mild detergent
if necessary.
The same inspection should be made of the o-rings associated with the dissolved
oxygen sensor connector if and when the Do sensor is removed. If no dirt or
damage to the o-rings is evident, then they should be lightly greased with the
o-ring grease provided without removing them from their groove. However, if
there is any indication of damage, the sensor o-ring should be replaced with an
identical o-ring.
To remove the Do sensor o-rings:
Use a small, flat-bladed screwdriver or similar blunt-tipped tool to remove the
o-ring from its groove near the sensor connector. Check the o-ring and the
groove for any excess grease or contamination. If contamination is evident, clean
the o-ring and nearby plastic parts with lens cleaning tissue or equivalent lint-
free cloth. Alcohol can be used to clean the plastic parts, but use only water
and mild detergent on the o-ring itself. Also, inspect the o-rings for nicks and
imperfections.
Using alcohol on o-rings may cause a loss of elasticity and may promote
cracking. Do not use a sharp object to remove the o-rings. Damage to
the o-ring or the groove may result.
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