YSI 600DW-B Sonde - Manual (Page 102)

Sondes Section 2
2.10 CARE, MAINTENANCE AND STORAGE
This section describes the proper procedure for storage of the sensors that will maximize their lifetime and
minimize the time required to get the sonde ready for a new application. This section will describe interim
or short-term storage between applications where the sonde is being used at a regular interval (daily,
weekly, biweekly, etc.). and long term storage, (e.g., over-the-winter), where the sonde will not be used on
a regular basis for several months.
In the descriptions and instructions below, it is assumed that the user has retained the vessels (bottles,
boots, etc.) in which the individual sensors were stored on initial delivery. If these specific items have been
misplaced or lost, they can be replaced by contacting YSI Customer Service. Alternatively, the user may
have similar (and equally acceptable) storage equipment on hand even though it was not part of the original
YSI package. Common sense should be the guide on substitution of storage vessels.
REMEMBER: DO NOT ATTEMPT TO GAIN ACCESS TO THE INTERNAL CIRCUITRY OF
THE SONDE.
2.10.1 SONDE CARE AND MAINTENANCE
The YSI 6570 Maintenance Kit is available for use with your sonde. The kit includes several items that will
be helpful or necessary to perform the proper routine maintenance on your sonde.
The 6570 Maintenance Kit includes two types of O-rings (for probes and cable connector),
probe/installation/replacement tools, two cleaning brushes for the conductivity sensor, O-ring lubricant, and
a syringe for cleaning the depth sensor port.
The 6570 Maintenance Kit can be ordered from any authorized YSI dealer, or directly from YSI. See
Appendix C for details.
When caring for your sonde, remember that the sonde is sealed at the factory, and there is never a need to
gain access to the interior circuitry of the sonde. In fact if you attempt to disassemble the sonde, you would
void the manufacturer's warranty.
O-RING CARE AND MAINTENANCE
Your 6-series sondes utilize user-accessible o-rings as seals to prevent environmental water from entering
the battery compartment and the sensor ports. Please read the following instructions carefully prior to
deploying your YSI Sonde. Following the recommended procedure will assure that no problems will occur
with regard to water influx into your sonde.
If the o-rings and sealing surfaces on the sondes are not maintained properly, it is possible that water can
enter the battery compartment and/or sensor ports of your sonde. If water enters these areas, it can severely
damage the battery terminals or probe ports causing loss of battery power during a deployment, false
readings and corrosion to the probes. Therefore, when the battery compartment lid is removed from
600XLM, 6920, 6600, and 600 OMS (battery version) sondes, the o-rings that provide the seal should be
carefully inspected for contamination (e.g. hair, grit, etc.) and cleaned if necessary using the instructions
provided below. The same inspection should be made of the o-rings associated with the probes, port plugs,
and field cable connectors when they are removed. If no dirt or damage to the o-rings is evident, then they
should be lightly greased without removal from their groove. However, if there is any indication at all of
damage, the o-ring should be replaced with an identical item from the YSI 6570 Maintenance Kit supplied
with your sonde. At the time of o-ring replacement, the entire o-ring assembly should be cleaned as
described below.
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