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Page viii
gas-lab
Q1
gas-net
Q1 evaluation computer:
The
gas-net
Q1 evaluation computer must neither be stored at
temperatures below -20°C nor above +55°C.
A temperature between 0 deg. C and +40 deg. C must be guaranteed
during operation.
The
gas-net
Q1 must be installed outside ex-zone 2.
The
gas-net
Q1 evaluation computer may contain subassemblies that
are approved as associated
electrical apparatus
of the
ib
category
according to DIN EN 50020 with intrinsically safe circuits. This renders
the electronic evaluation computer Q1 suitable for connection to
sensors and pulse generators located in hazardous areas (e.g.
zone 1).
A mixed connection of intrinsically safe and not intrinsically safe
circuits is not permitted in case of these subassemblies.
The evaluation computer is supplied by 24 V DC and must be secured
externally by 1 A.
The earthing is connected to PE of the power supply connector for
equipotential bonding.
Observe the regulations of the relevant standards, in particular of DIN
EN 50014, DIN EN 50020, and DIN EN 50029.
Observe the limit values stated in the respective certificates of
conformity of the boards to be connected.
Warning: The evaluation computer of the Q1 measuring system is a class
A device that may cause interferences in living areas; in this case, the
user may be asked for appropriate measures at his expense.