CHAPTER 4 - MAINTENANCE
4.1 GENERAL
Preventive maintenance is performed to keep equipment in proper working condition.
When periodically performed, it will result in longer life for the equipment and reduce
time lost due to equipment failure.
4.2 CONSOLE CLEANING
At least once a month, clean all metal parts of unit. Use a damp cloth moistened with water
or mild detergent. If a detergent is used, remove all excess by clean water washing.
4.3 PERIODIC INSPECTION
At three month intervals perform the following checks and inspections with all switches
"OFF" and incoming power disconnected.
1. Check the fuse(s) for clean contact.
2. Check all controls and accessible items (switches, knobs, fuse holders, screws,
nuts and bolts) to make sure they are properly tightened. Tighten any item which
is loose.
3. Check that all controls are free of dust and operate easily.
4. Check that all O-rings in the headplate and impeller are intact. Replace those that
are not.
4.4 VESSEL AND TUBING CLEANING
After each run clean the vessel, headplate and associated parts. The tubings and filters
should be replaced.
4.5 PROBE MAINTENANCE AND STORAGE
D.O. PROBE
To clean D.O. probe, use soft facial tissue.
Check the D.O. probes teflon membrane. (Make sure there is no wrinkling or
punctures.)
Check the vent tubes, make sure they are clean.
The probe should be stored standing upright with the shorting plug in place and
the membrane isolated from the air environment. At no time should the probe be
allowed to rest on the electrode's membrane.
As soon as the probe is filled with electrolyte, it begins aging and its output can be
expected to decline gradually. Depending on the operating conditions, a filled probe
should last through 15 to 30 sterilization cycles, and/or 6 months.
The probe should not be stored at a temperature greater than 60C.
pH PROBE
M1217-0050 23
To Next Page
Loading...