Hach-Lange 9187 sc - Manual (Page 30)

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Maintenance
Figure 12 Disassembling the Sensor
5.2.2 Replacing the Tubing
Replace the tubing annually, if necessary.
5.2.3 Replacing the Electrolyte
Replace the electrolyte when changing the membrane. Refer to section 3.5.1 on page 11
to replace the electrolyte.
5.2.4 Replacing the pH Electrode (9184sc only)
Replace the electrode 12 to 18 months depending on the application.
1. Probe Chamber 6. Measurement Electrode
2. Probe Assembly 7. Probe Body
3. Probe Retaining Nut 8. Filling Screw
4. Electrode Cable Connector 9. Probe Body Washer
5. Electrode Retaining Ring 10. Pre-mounted Membrane