WARNING
Danger of chemical burns
The H
2
S sensor contains sulfuric acid, which leads to burns on unprotected skin.
Therefore do not use any tools when replacing the sensor module which could damage the
sensor due to sharp edges or squeezing.
If contact with the acid occurs nevertheless, rinse the aected skin immediately with plenty of
water!
6.1.3 Analyzers in hazardous areas
Following maintenance or the retrotting of parts associated with explosion protection, the
analyzer may only be put into operation when an Ex specialist has ensured that the analyzer has
the essential features and meets the requirements for explosion protection and issues a
certicate to this eect and/or has attached a test symbol to the equipment.
DANGER
Explosion hazard
Never open, service or repair the analyzer in an area in which a potentially explosive
atmosphere may be present.
DANGER
Potentially explosive atmosphere
The analyzer keys must not be pressed if a potentially explosive atmosphere may be present.
If operation using the keyboard is necessary, a hot work permit is absolutely essential.
WARNING
Electrostatic charge
Danger of explosion in hazardous areas if electrostatic charges develop, for example, when
cleaning plastic surfaces with a dry cloth.
• Prevent electrostatic charging in hazardous areas.
Service and maintenance
6.1Safety instructions
Series 6 and ULTRAMAT 23
Compact Operating Instructions, 01/2024, A5E45779144002-AB 49