64
Maintenance and Storage
Sensor Cap Replacement - ProDSS ODO Sensors
1.
Turn the used sensor cap counterclockwise to remove it from the
sensor.
NOTE:
If possible, do not use a tool to remove the cap from the
sensor. If necessary, carefully turn the cap counterclockwise
with pliers until it breaks loose. Do not use the pliers on
the sensor body. Make sure to not damage the sensor cap
threads.
2.
Without using tools, remove the used o-ring from the sensor body
(pinch the o-ring out, then roll it upward over the threads), then
discard it.
3.
Clean the sensor threads with a clean, lint-free cloth.
4.
Visually inspect the new o-ring for nicks, tears, contaminants or
particles. Discard damaged o-rings.
5.
Without twisting it, carefully install the new o-ring over the threads
and into the o-ring groove.
6.
Apply a thin coat of o-ring lubricant to the o-ring only. Wipe any
excess from the threads and sensor body.
7.
Clean the sensor window with a clean, lint-free cloth.
8.
Make sure the new sensor cap cavity is completely dry, then
carefully finger-tighten the cap clockwise onto the sensor. The
o-ring should be compressed between the sensor cap and body,
not pinched.
NOTICE:
Do not over-tighten the sensor cap. Do not use tools.
9.
Store the ODO sensor in a moist environment.
NOTE:
If the o-ring is pinched, remove and discard it. Repeat steps
3 to 8.
Sensor Cap Replacement - Built-in ODO Sensors on ODO/CT and ProODO Cables
1.
Remove the old sensor cap assembly from the probe by grasping the probe body with one hand and rotating
the sensor cap counterclockwise until it is completely free. Do not use any tools for this procedure.
2.
Inspect the o-ring on the probe for damage. If there is any indication of damage, carefully remove the o-ring
and replace it with the new o-ring included with the replacement sensor cap. Do not use any tools to remove
the o-ring.
3.
Ensure the o-ring installed on the probe is clean. If necessary, wipe clean with a lint free cloth or replace the
o-ring as described in the previous step.
4.
Locate the o-ring lubricant included with the new sensor cap. Apply a thin coat of o-ring lubricant to the
installed o-ring. After application, there should be a thin coat of o-ring lubricant on the o-ring only. Remove any
excess o-ring lubricant from the o-ring and/or probe with a lens cleaning tissue.
5.
Remove the new sensor cap from its hydrated container and dry the inside cavity of the sensor cap with lens
cleaning tissue. Make sure the cavity is completely dry before proceeding with the installation. Next, clean the
clear surface of the sensor on the end of the probe with lens cleaning tissue.
6.
Using clockwise motion, thread the new sensor cap onto the probe assembly until it is finger-tight. The o-ring
should be compressed between the sensor cap and probe. Do not over-tighten the sensor cap and do not use
any tools for the installation process.
7.
After installing the new sensor cap, store the sensor in either water or in humidified air in the calibration sleeve.
Figure 69
ProDSS ODO cap replacement
Содержание YSI ProDSS
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