MiPNet19.01
B: OroboPOS service
20
OROBOROS INSTRUMENTS
OROBOROS Oxygraph-2k
Figure 2
. Removal of a used
membrane from the POS.
2
2. Grab the PEEK
membrane ring
on the sensor
head
3
4
3. Pull the PEEK
membrane ring from
the sensor head
4. Remove and
discharge the old
membrane
Remove an old
membrane from
the POS
Membrane
mounting tool
POS on POS
connector
1. Remove
POS seal tip
1
1.
Accessories
Accessories for sensor service are provided in the OroboPOS-Service Kit
(Fig. 1). In addition, you need distilled water and 25% ammonia solution
(fresh). Store the OroboPOS in the dark.
2.
Cleaning
Prevent damage by electrostatic
discharge (ESD) when handling the POS
connectors or cable connections to the
O2k (
).
For sensor service, remove the black
POS seal tip (1). It is normal to see many
small bubbles in the electrolyte reservoir.
This does not indicate that this caused a
problem while the sensor was actually in
use. Remove the PEEK membrane ring
(2,3) and membrane (4; Fig. 2). Wash
off the electrolyte with distilled water.
For cleaning of the anode and
cathode, the sensor head is best
removed from the OroboPOS-Connector
Fig. 1.
OroboPOS-Service Kit
-
Oxygraph-2k
26300-01 OroboPOS-Electrolyte powder, KCl
26200-01 OroboPOS-Membranes, FEP 25 µm; 40/Pck.
26520-01 OroboPOS-Polishing Powder for cathode cleaning
26510-01 OroboPOS-Polishing Cloth for cathode cleaning
26400-01 OroboPOS-Mounting Tool for membrane application
26800-01 Pipette\Plastic\1 ml ungraded for electrolyte
26600-01 O2-Zero Powder, dithionite (Na
2
S
2
O
4
)
26550-01 Pen-Contact Oil for stable low contact resistance
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4
5
6
7
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2
3
4
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