Burkert 8176, Инструкции по безопасности

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I f the LEVEL TRANSMITTER LT
8176
.
C
***
H
***,
LT
8177
.
C
***
H
***
are operated with higher
temperatures as stated in the above mentioned table
,
please make sure by appropriate
measures
,
that the danger of ignition caused by these hot surfaces can be excluded
,
under
consideration of the self
-
heating of 6 K on the transducer
.
T he max
.
permissible temperature
on the electronics
/
housing should not exceed the values stated in the above mentioned table
.
T he application conditions during operation without explosive mixtures are mentioned in the
manufacturer instructions
.
4 . 2 P
ermissible operating pressure
F or applications requiring instruments of category
1
/
2
G
,
the process pressure of the media
must be between 0
.
8
…
1
.
1 bar
.
5
P rotection against static electricity
T he ultrasonic sensors LEVEL TRANSMITTER LT
8176
.
C
***
H
***,
LT
8177
.
C
***
H
***
have
surfaces that can get electrostatically charged
.
A caution label on the housing refers to the
safety measures that must be applied when the danger of electrostatic charges exists during
operation and maintenance work
.
C aution
:
P lastic parts
!
D anger of static charge
!
l
A void friction
l
N o dry cleaning
l
D o not mount in pneumatic
fi
lling stream
6
U se of an overvoltage arrester
O n request the ultrasonic sensors LEVEL TRANSMITTER LT
8176
.
C
***
H
***,
LT
8177
.
C
***
H
***
can be connected to an overvoltage arrester
.
I f the ultrasonic sensors LEVEL TRANSMITTER LT
8176
.
C
***
H
***,
LT
8177
.
C
***
H
***
are used
as category
1
/
2
G instruments
,
lightning protection measures according to EN
60079
-
14
sect
.
12
.
3 are not required
.
7 G rounding
T he LEVEL TRANSMITTER LT
8176
.
C
***
H
***,
LT
8177
.
C
***
H
***
must be electrostatically
grounded
(
transfer resistance
≤
1
MO hm
),
e
.
g
.
via the ground terminal
,
8
LEVEL TRANSMITTER LT
817
*.
C
***
H
***
32829
-
EN
-
070615