Maintenance Schedule - Hach EZ Serie Manuel De L'utilisateur

Section 9 Maintenance
Electrocution hazard. Remove power from the instrument before doing maintenance or
service activities.
Multiple hazards. Only qualified personnel must conduct the tasks described in this
section of the document.
Pinch hazard. Parts that move can pinch and cause injury. Do not touch moving parts.
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
personal protective equipment appropriate to the chemicals that are handled. Refer to
the current safety data sheets (MSDS/SDS) for safety protocols.
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,
regional and national regulations.

9.1 Maintenance schedule

Table 6 shows the recommended schedule of maintenance tasks. Facility requirements and
operating conditions may increase the frequency of some tasks.
Task
Show the active alarms
on page 27
Examine for leaks and
malfunctions on page 27
Prepare and replace the reagents
on page 28
Examine and clean the electrode
on page 28
Calibrate the pH electrode
on page 28
Calibrate the analyzer
on page 28
Clean the analyzer components
on page 28
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D A N G E R
W A R N I N G
W A R N I N G
C A U T I O N
C A U T I O N
Table 6 Maintenance schedule
1 day 7 days 30 days 90 days 365 days As necessary
X
X
X
X
X
X
X
X
X X X
X
X
X