YSI pHotoFlex pH Handheld Colorimeter - Manual (Page 14)

Safety pHotoFlex
®
pH
14 ba76123e01 02/2013
2.2 Safe operation
CAUTION
Danger of eye damage by visible and invisible LED radiation. In
the cell shaft there are light emitting diodes (LED) of the 1M class.
Do not look at the radiation using optical instruments. With
normal, authorized use there is no hazard.
2.2.1 Authorized use
This meter is authorized exclusively for the following measurements:
 Analysis of substances in water and aqueous solutions
using round cells
 Concentration measurement
 Absorbance and transmission measurement
The fields of application are mobile use and use in the laboratory. Only
the operation and running of the meter according to the instructions and
technical specifications given in this operating manual is authorized
(see chapter 7 T
ECHNICAL DATA ). Any other use is considered unauthor-
ized.
2.2.2 Requirements for safe operation
Note the following points for safe operation:
 The meter may only be operated according to the authorized use
specified above.
 The meter may only be supplied with power by the energy sources
mentioned in this operating manual.
 The meter may only be operated under the environmental conditions
mentioned in this operating manual.
 The meter may only be opened if this is explicitly described in this
operating manual (example: Inserting the batteries).
2.2.3 Unauthorized use
The meter must not be put into operation if:
 it is visibly damaged (e.g. after being transported)
 it was stored under adverse conditions for a lengthy period of time
(storing conditions, see chapter 7 T ECHNICAL DATA ).