Orbisphere 3600 series - Put Sensor Back into Service; Shutting down the System

32 3600 Analyzer for O
2
Measurement—Operator’s Manual
3600O2.OM.E9903
The membrane is mounted.
Remove both parts of the membrane mounting tool.
Inspect the membrane holding ring to be sure that it’s
properly seated and pushed in all the way, and make
sure that the membrane is smooth. If not, you may be
able to complete the process by pushing down with
your fingers. If this does not work, replace the
membrane.
Note that the O-ring that forms a seal between
holding ring and sensor should be replaced if the
holding ring turns easily.
Check that there are no air bubbles beneath the surface of the membrane. If there
are, you must replace the membrane.
Wash excess electrolyte off the sensor and wipe dry. Then unscrew the black
plastic base, taking care not to get the sensor’s LEMO-10 connector wet.
1.5.8 Put Sensor Back into Service
Re-connect the sensor to its cable, by screwing in the cable connector to the rear
of the sensor.
Then replace the screw-on protection cap. The
protection cap may include washers only, or it may
include Dacron mesh or a water separation filter, and a
stainless steel grille. Please check that these
components are clean and dry before installation. If
you are unfamiliar with these components’ assembly
order, check the diagram shown in section 1.6.1. The
protection cap should be tightened finger tight, and
then secured with an extra 1/8 to 1/4 turn with its metal
wrench, included with your recharge kit.
After giving the membrane at least 30 minutes to relax,
calibrate the system (see section 1.3.3).
Once the sensor has been calibrated, place the sensor back into the sample, using
its collar to secure it into place if appropriate. Your sensor should be ready to begin
making measurements.
1.5.9 Shutting Down the System
During a short shut-down period (such as weekends), the sensor can be left in its
flow chamber or sensor socket.
If this inactive period is likely to last a long time, you should remove the sensor
from its flow chamber or sensor socket.
If you expect not to use your sensor for more than a few months, you should
clean the sensor, as instructed in sections 1.5.1 to 1.5.8, and store it “dry”, without
electrolyte, with the calibration cap in place for protection.
Since the instrument has a non-volatile memory, important parameters will remain
memorized even when the instrument is switched off.
Pushing plunger to finish
membrane mounting.
Replacing
protection cap