Hach-Lange SI792 C, SI792x C, SI792x C-FF, SI792x C-PA User Manual - Manual (Page 73)

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Section 9 Maintenance
DANGER
Explosion hazard. Only qualified personnel should conduct the
tasks described in this section of the manual.
DANGER
Electrostatic hazard. Follow the instructions in
Electrostatic
Discharge (ESD) Considerations on page 20 before conducting
any maintenance tasks.
9.1 Cleaning the instrument
Use only a moistened antistatic, lint-free cloth to remove dust, dirt and
spots from the external surfaces of the transmitter. Use a mild
household cleaner if necessary.
9.2 Sensor maintenance
Refer to the user manual supplied with each sensor for specific
cleaning requirements.