Hach-Lange TSS PORTABLE Handheld Instrument for Turbidity_Suspended Solids Manual - Manual (Page 29)

C A U T I O N
29
Section 6 Maintenance
The cleanliness of the measurement windows in the sensor head is critical to the accuracy
of the measurement results!
Cleaning the instrument
Clean the instrument with a damp, lint-free cloth.
Cleaning the measurement windows
The windows are made of sapphire glass. If required, they can be cleaned with any
conventional cleaning agent and a soft cloth. In the case of very stubborn deposits, clean
with a soft cloth soaked in 5% hydrochloric acid.
Observe the safety conditions and wear protective clothing!
• Safety glasses
• Gloves
• Overalls
Potential chemical and biological eye and skin hazards.
Only qualified personnel should perform the tasks described in this section of the operating
manual.