LHC-M51, PPC-M51
SI00469O-C
DO
CT
-3
03
7B
201
7-
09
2571
25
8
EN
Safety instructions:
Special conditions
The following components of the device correspond to the low risk of mechanical danger. They must
be mounted in a protected position if installed within a hazardous location area rated Zone 2 if
mechanical danger is expected: plug connectors.
Safety instructions:
Installation
Figure 1
A
Power supply
B
Zone 2, Electronic
C
Zone 2, Process
1
Power supply U
2
LHC-M51or PPC-M51
3
Option: Separate housing
• Comply with the installation and safety instructions in the instruction manual.
• Install the device according to the manufacturer's instructions and any other valid standards and
regulations.
• Only install the devices in media for which the wetted materials have sufficient durability.
• Avoid electrostatic charging of the plastic surfaces, for plastic process connections or plastic
coatings.
• Avoid impact or friction sparks for light metal flanges or flange faces (e. g. titanium, zirconium).
• Do not disconnect electrical connections under voltage in an explosive atmosphere.
Temperature tables
Connection data
B
A
1
2
3
C
Type of protection
Temperature class
Ambient temperature (housing)
II 3G Ex nA IIC T6...T4 Gc
T6
-40 °C
Ta
+40 °C
T4
-40 °C
Ta
+70 °C
Electronic insert
Electrical data
4 mA .... 20 mA HART
Power supply
U
45 V DC
PROFIBUS PA
Power supply
U
32 V DC
