Servicing the sonde, Testing communications – YSI Vertical Profiler Systems User Manual

Page 73

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YSI Profiler System USER Manual

SERVICING THE SONDE

As previously mentioned when the time comes to disconnect the sonde from the winch for
calibration or service you must wait for the profile to end. If that’s not possible, then you must
turn power off to the winch.

Ideally sonde servicing should take place by rotating a spare sonde into service while the system
is in between profiles (idle at Park). When this is not possible and the sonde must be removed
for on-site calibration, then the system needs to be stopped temporarily.

Connect a lap top to the Controller Assembly using the Diagnostic Cable. Start LoggerNet™
and connect to the station. At this point Flag 2 should be OFF (low). No other flags or ports
should come ON except for Port 8 which will turn ON briefly every 60 seconds. If the Ports are
flickering ON and OFF, then the system is probably in the middle of a profile sequence.

Turn Flag 2 ON (high). This puts the Profiler system into Setup Mode keeping it in idle mode
for the duration of the service procedure.

Once sonde servicing is complete, connect the sonde to the winch cable and verify proper sonde
operation using the LoggerNet™ flags.

If you are satisfied with the tests, you can exit Setup mode by setting Flag 2 OFF (low). If you
want to start a profile immediately, then set Flag 5 ON (high). Otherwise the profiling routine
will be determined by the clock and you may be required to wait for some time.

IMPORTANT:
YSI recommends that after you service a sonde you should start a profile and verify
sequence operation before departing the remote site.

TESTING COMMUNICATIONS

YSI Profiler platforms may use a variety of wireless communications options. Each has its own
distinctive set of problems. In this section you learned to setup modem communications and we
touched on using a similar method with IP addresses. If you have a laptop computer, the system
can be tested prior to moving to the remote site. This test is worth the time, but is no substitute
for testing on site. With a cellular modem in the system and a cell phone, you could collaborate
with a colleague to check communications between remote and base sites. The methods for
testing are fairly standard and each user typically has their preferences.

If you have any problems with communications do not hesitate to call Endeco/YSI. The contact
information can be found in Appendix A.

In the following section of this manual a very general discussion for transporting and securing a
YSI Profiler to a remote site will be discussed.

YSI Environmental

669523 Rev B

Page 5-14

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