Endress+Hauser ISEmax CAS40D, Operating Instructions Manual

Page: 16 / 32

Maintenance ISEmax CAS40D
16 Hauser
Replacing the membrane cap and electrolyte
1. Unscrew the membrane cap from the electrode (
→
å
12).
The membrane cap is waste that you must dispose of properly.
2. Drain the electrolyte from the electrode body.
3. Extract fresh electrolyte using the pipette included in the kit, and fill the electrode body with
electrolyte to approx. 2-3 mm (0.08 - 0.12") below the rim (
→
å
13).
4. Dry the thread of the electrode carefully.
5. Continue to hold the electrode upright, with the cable connection head facing downwards,
and screw on the membrane cap until it is hand-tight (
→
å
14).
6. Turn the electrode around, and remove any air bubbles by holding the electrode vertically and
shaking it vigorously several times (as in the case of a clinical thermometer).
From now until it is installed in the process, always hold the electrode and sensor upright, to
avoid the accumulation of new air bubbles on the membrane surface.
a0015225
Fig. 8: Release protection
guard
a0015226
Fig. 9: Remove coupling
nut
a0015227
Fig. 10: Release electrode
cable
a0015229
Fig. 11: Remove electrode
a0015283a
Fig. 12: Remove cap
a0015284a
Fig. 13: Fill with electrolyte
a0015285a
Fig. 14: New cap