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U408_flowthermNT_B_e_160420
4/35
www.hoentzsch.com
1
Safety Instructions
Danger to life, risk of injury and damage to material or property.
Read the Operating Instructions carefully before initial operation.
Observe general safety precautions as well as those included in various sections of these Operating
Instructions.
Hazard risks:
-
non-observance of the Operating and Safety Instructions
-
modifications to the device by the customer
-
handling the device outside the specified operating conditions
-
handling the sensors outside the specified operating conditions
-
use of unsuitable power supplies and peripheral devices
-
improper use of the device
Prevention of voltage hazards:
-
use only the dedicated adapter plug for the mains supply
-
make sure that the PC is correctly connected to the mains (earthed safety socket, earthing) when
using a USB connection
-
when connecting analog outputs or inputs to peripheral devices make sure that these are correctly
connected to the mains (earthed safety socket, earthing)
Danger when installing the sensors in pressurized pipelines:
-
sensors for use in pressurized pipelines are to be inserted or retracted only in depressurized con-
ditions; non-observance may result in serious injuries to personnel
-
when installing or removing under pressure, the appropriate protective equipment must be used, e.g.
ball valve and probe guide pieces with chain guard or spindle probe guide pieces
Danger when using in explosive atmospheres:
-
the unit and its sensors may be used in areas specified for category 3G (zone 2 gas) equipment only
-
if sensors with category 1/2 G, 1/2 D or 2 G, 2 D or 3 D markings are connected to the device they
may be used in category 3G areas only! (See also
Instruction Manual Category 3G
and
Declaration of Conformity in Sections 8 and 9)
1.1
Specific information
-
pay special attention to the mains voltage when using voltage converters
-
observe the maximum power rating when connecting sensors powered by more than 12 V
-
when operating out of doors make sure that the battery compartment cover and sensor plug are
screwed on tightly, the connector sockets not in use are firmly capped, and the USB connection cover
is tightly sealed, otherwise the IP65 protection cannot be guaranteed
