FLOWSIC600 · Operating Instructions · 8010458 V 2.0 · © SICK MAIHAK GmbH 41
Installation
Notes for safe operation in hazardous areas
● Type of explosion protection: II 1/2G Ex de ib [ia] IIC T4 or II 2G Ex de ib [ia] IIA T4
● Ambient temperature:-20°C to +60°C
In the extended temperature range from -40 °C to +60 °C, metal cable glands shall be
used.
● The cable glands included in the delivery are black. If terminals are assigned with
intrinsically safe circuits, it is recommended to replace the black ones with the light-
blue (RAL 5015) cable glands provided.
● The type of protection for the field connections and power supply connection is
determined by the external circuits that are connected (for options see “Connection
options“ above).
● Safety-relevant data for intrinsically safe circuits is provided in the EC Type Approval
Certificate.
● Ensure that the cover on the power supply connection is properly sealed. In intrinsically
safe installations, the terminal box can be opened and cables connected and
disconnected while the system is live. In this case it is also allowed to connect or
disconnect cables from each other when attention is paid to the safe separation of the
curcuits.
● If the meter body is insulated, the insulation thickness must not exceed 100 mm. The
SPU housing must not be insulated.
Figure 13 FLOWIC600 components and their type of protection
Approval of the ultrasonic transducers in zone 0 is only valid for operation
under atmospheric conditions.
WARNING:
Always observe the temperature specifications for use in hazardous areas.
Aux. power
PA
Digital output
RS485
Digital output
Digital output
Digital output
Power supply
Field connections
Terminal box “e”, “i”
Signal processing unit
(SPU)
Pressure-resistant
space “d”
Meter body
Ultrasonic transducers “ia”
PA