YSI 6500 Environmental Process Monitor - Manual (Page 11)

Installation Section 2
Figure 3 Remote location of monitor relative to sonde
Enter
Esc
Cal
6500 6500
EN VIRON MEN TAL EN VIRON MEN TAL MO N ITORIN G MO N ITORIN G S YS TEM S YS TEM
21.2 Temp
7.35 DO
6.53 pH
sonde cable
w/ MS-8
Stream
Sonde
Breakout Box
Conduit &
6507
6’ Patch cable
w/ MS-8
customer-supplied
3-conductor cable
250’ Maximum
Junction Box
6508
6500 Monitor
Not drawn to scale.
AC
YSI also provides a means for convenient and accurate bench calibration of the sonde. Refer to
the Sonde Manual for bench calibration procedures. Bench calibration allows the operator to
easily disconnect the sonde from the monitor and then reconnect the sonde to a laboratory
computer or terminal device (YSI 610 display/logger). Under this protocol, the sonde can be
fully checked in a user-friendly environment, recalibrated and then redeployed. If the sonde is
equipped with a bulkhead connector rather than an integral cable, bench calibration is used.
If locating the monitor near the sonde is not possible due to environmental conditions and/or
accessibility, bench calibration provides a very good alternative to on-line calibration.
Although the monitor is suitable for outdoor use, it should be located in an area where
temperature extremes, vibrations, electromagnetic and radio frequency interference are minimal.
Select an installation location that is at least two (2) feet from any high voltage conduit. Avoid
mounting on severely vibrating structures. Be sure the monitor can be fully opened and serviced
at its installed location by maintenance personnel. Be sure the site has easy access for operating
personnel.
2.3 INSTALLING THE SONDE
After you have chosen suitable sites for the monitor and sonde, proceed with the installation as
described below.
Avoid routing sonde cabling near wiring associated with rotating machinery and/or equipment
involving electrical switching or regulation. Consider placing sonde cabling in grounded metallic
conduit if unstable readings appear due to electromagnetic interference.
YSI Incorporated 6500 Environmental Process Monitor 7