Honeywell 9782 Series - Manual (Page 131)

Maintenance
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 10-15
Table 10-8 Procedure for Replacing the Fuse
Step Action
1 Determine why the fuse blew and correct the problem.
2 Check the fuse’s packaging (in miscellaneous parts kit 51198177-501) to be sure that the
fuse is correct for the voltage at your site.
3 Turn off the power to the Analyzer/Controller. More than one switch may be required to
remove power.
4 With the power off open the case:
•
Grasp the bottom center portion of the front bezel and pull it downward and toward you
slightly to disengage the bottom of the bezel from the edge of the case.
•
Lift the bezel gently to disengage it from the top edge of the case.
•
Swing the bezel to the left. (The bezel and display assembly is mounted on pivot arms.)
The safety cover with its warning label will be visible.
5 With the power off remove the safety cover by removing the single screw holding it in
place.
6 If more room is needed, remove the circuit card retainer bracket at the top of the case and
pull the circuit card assembly partially out of the instrument case. (It may be necessary to
temporarily disconnect leads from some terminals to do so.)
7 Remove the old fuse and insert the new one.
8 If any leads were disconnected in Step 6, reconnect them.
9 Replace the safety cover and secure it with the screw.
10 Close the case and power up the unit. Do not apply power until the case is closed.