Instruction Manual OilGuard Ex M
6
10241E/2
2
Safety regulations
2.1
Symbols used on the photometer
The symbols used on the instrument refer to the following safety measures
and precautions:
DANGER (BLACK ON YELLOW)
Warning about a general source of danger. This symbol designates areas or
manipulations for which special safety rules must be adhered to. In such cases
consult the Instruction Manual where these rules are described.
VOLTAGE (BLACK ON YELLOW)
Warning about dangerous electrical voltage. This symbol designates electrically
charged areas with voltage of 48 VAC or 65 VDC where electric shocks may
occur. Comply with the safety precautions and procedures specified in the
Instruction Manual.
2.2
Precautions for safe operation
Note the following information before commissioning the instrument.
To ensure that the protection index is not compromised, it is forbidden to
make any mechanical or electrical changes to the instrument or its parts.
Only trained persons may open the explosion-protected housing (Ex
housing).
The sequence of operating steps must be followed precisely.
2.3
Prohibited manipulations
To prevent instrument manipulations, some internal parts have a seal. These
parts must not be opened or removed. The seal breaks into small pieces if an
attempt is made to remove it.
