Endress+Hauser ISEmax CAS40D, Operating Instructions Manual

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ISEmax CAS40D Installation
Hauser 7
3.3 Installation instructions
3.3.1 Electrode installation
NOTICE
Electrode protection caps
Drying out of pH electrode or damage to ion-selective membrane
►
Remove the protection cap from the pH electrode before immersing the sensor in the medium.
►
Retain the protection cap.
►
If you remove the sensor from the medium for longer than 20 minutes, replace the protection
cap filled with 1-3 M KCl solution on the pH electrode. This prevents the electrode from drying
out.
►
pH electrodes which have dried out due to incorrect storage can be made ready for
measurement again by leaving them in 3 M KCl solution for up to 12 hours.
►
The ion-selective electrodes do not have a protection cap. Never put such a cap on the
electrodes.
All electrodes are installed and wired in the factory in accordance with the version ordered.
Installing an additional electrode (optional)
1. Release and remove the protection guard (
→
å
2).
2. Unscrew the coupling nut (
→
å
3).
3. Pull the electrode holder out of the sensor and release the electrode cable on a dummy
electrode (placeholder, must be present for impermeability reasons,
→
å
4).
4. Remove the dummy electrode using a open-end or socket wrench, SW17 (
→
å
5).
5. Screw the new electrode into the free space and hand-tighten using the open-end or socket
wrench, SW17.
6. Attach the electrode connector.
7. Carefully push the electrode holder and the air hose back into the sensor.
8. Screw on the coupling nut and then the protection guard.
NOTICE
Air bubbles
Air bubbles may accumulate in the electrodes following transportation and if they have been stored
in a horizontal position. These air bubbles cause measuring errors.
►
Before installing the sensor, eliminate any air bubbles e.g. by shaking gently.
►
Then make sure to hold the sensor in an upright position (electrodes facing downwards) at all
times until the sensor is installed at the measuring point.
a0015225
Fig. 2: Release protection
guard.
a0015226
Fig. 3: Remove coupling
nut.
a0015227
Fig. 4: Release cable.
a0015229
Fig. 5: Remove electrode.