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3Ć77
Maintaining the System
Materials required:
S reference electrode internal replacement kit
S hex tool
S lint-free tissue
BIOHAZARD: Refer to Appendix A, Protecting Yourself from Biohazards, for
recommended precautions when working with biohazardous materials.
1. Stop the system from the Menu screen:
a. Select
2 Maintenance and press Enter.
b. Select 7 Stop System and press Enter.
CAUTION:ĄĂDo not remove or return the sensors to the measurement module
without first discharging static buildup. Touch the inner surface of the module
frame to discharge static buildup.
2. Remove the reference sensor as shown in Figure 3-51:
a. Push up the latches on the measurement module door and lift the door.
b. Push the spring-loaded latch to the right.
c. Grasp the tab on the reference sensor and pull the sensor up and out of the
measurement module.
3. Use the hex tool to remove the internal electrode from the reference sensor as
shown in Figure 3-52.
2
Menu Code
7
!