Hach DOC026.52.00769, User Manual

Page: 47 / 64

45
Maintenance
6. Remove the two screws securing the detector assembly to the
wall of the SS7 sc enclosure. Remove the complete
detector assembly (
Figure 20 , item 1 ).
7. Use the two screws removed in step 6 to secure the new
detector to the wall of the SS7 sc enclosure. Secure the cable
with the cable clamps.
8. Thread the detector cable through the strain relief. Replace the
split grommet (note the orientation in
Figure 20 ) onto the
detector cable. At the clamping fingers, rotate the grommet
counter-clockwise while pushing the grommet back into place
in the strain relief.
9. Thread the nut onto the detector cable and secure onto the
strain relief.
10. Close the SS7 sc enclosure door. Attach the detector cable to
the controller.
11. Apply power to the controller and turn it on. The controller will
prompt the user that the SS7 cannot be found. The old detector
serial number will be displayed.
12. Use the arrow keys to select the old detector serial number and
remove it. The controller will then install the new
detector assembly.
13. Establish the setup for all analog outputs and/or relays to be
used with the SS7 sc. Use the settings recorded in step
1 .
14. Calibrate the instrument ( section 5.5 on page 31 ).