YSI IQ S ENSOR N ET NitraVis 70x IQ - Manual (Page 35)

NitraVis 70x IQ
Maintenance and cleaning
5 - 1 ba75950e02 11/2012
5 Maintenance and cleaning
5.1 Maintenance
The UV-VIS NitraVis 70x IQ sensor operates maintenance-free.
5.2 Sensor cleaning
5.2.1 Cleaning agents and accessories
Cleaning agents To clean the sensor, use the following cleaning agents only:
* For the final cleaning prior to a Sensor check or Zero adjustment , only
use cleaning agents with purity grade "for analysis". Finally, thoroughly
rinse the sensor with ultrapure water.
Accessories  Sponge
 Plastic-bristled brushes of different sizes.
Interdental brushes are suitable for the cleaning of the compressed
air channels.
 Flocked cleaning cards (see accessories)
 Lens tissues
 Wash bottle
Note
Never use any pressure washer, steam blaster, abrasives or metal
brushes to clean the sensor. Risk of damaging the sensor.
Contamination Cleaning agents
Water-soluble substances – Primary cleaning: Tapwater,
warm if possible
(30 - 50 °C)
– Precision cleaning: House-
hold washing-up liquid + ultra-
pure water.
Lime deposits 5 % hydrochloric acid *
Grease deposits Mixture of isopropanol and water
(approx. 70 % isopropanol) *