Care, maintenance and storage, General maintenance – YSI Pro2030 User Manual

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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.