YSI Incorporated
YSI 550 DO Handheld Instrument
11
7. The YSI 559 DO module is shipped dry. Before using the YSI 550 with a new YSI 559
sensor, the protective membrane on the probe tip must be removed, the membrane cap
must be filled with electrolyte solution and a new membrane must be installed. Follow the
instructions below to install the electrolyte solution and membrane.
CAUTION: Make sure that you do not cross-thread the screw. Use the hex key wrench to
tighten the screw in properly, making sure that the screw does not stick out on either side of
the cable end. The probe guard will not thread on properly and damage may result if the
screw is allowed to stick out on either side of the cable end.
Probe Guard
DO Sensor
Cable End
Set Screw
Hex Key
Wrench
Figure 6
Summary of Contents for 550 DO
Page 1: ...YSI 550 Handheld Dissolved Oxygen and Temperature System Operations Manual ...
Page 2: ......
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