Hach-Lange SOLITAX sc - Manual (Page 19)

19
Section 5 Maintenance
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
Proper maintenance of the measuring windows in the sensor is critical for accurate
measurements. The measuring windows should be checked monthly for soiling and the
wiper checked for wear.
Important Note: The seals must be replaced every 2 years by the Service Department. If
the seals are not changed regularly, water may enter the probe head and seriously
damage the instrument.
5.1 Maintenance Schedule
5.2 Cleaning the Sensor Measuring Windows
CAUTION
Always were

Safety glasses,

Gloves and

Overal
handling hydrochloric acid and observe safety regulations.
The measuring windows are made of quartz glass. If necessary, they can be cleaned with
a cleaning agent and a cloth.
Maintenance Task Duration
Visual inspection monthly
Check calibration
monthly
(depending on the ambient conditions)
Inspection six months (counter)
Seal change every 2 years (counter)
Change wiper and reset counter as per counter (20000 cycles)