Vibracon LVL-M2C
SI00113O-F
DO
CT
-0
56
0B
201
8-
10
1151
39
17
EN
Basic specification, feature electrical connection, option PA
Figure 2
A
Zone 1
1
Tank; Zone 0
2
Electronic insert
3
Housing
4
Permitted terminating resistor Ex ia IIC
5
Certified associated apparatus
6
Power supply
7
Tank; Zone 1
8
Potential equalization
• Connect the device using suitable cable and wire entries of protection type ”Intrinsic safety
(Ex i)".
• Continuous duty temperature of the cable T
amb
+ 5 K.
• Perform the following to achieve the degree of protection IP66/67:
– Screw the cover tight.
– Mount the cable entry correctly.
• Seal unused entry glands with approved sealing plugs that correspond to the type of protection.
• Observe the pertinent guidelines when interconnecting intrinsically safe circuits.
• Connection of intrinsically safe PROFIBUS devices: 10 devices.
• Observe the maximum process conditions according to the manufacturer's documentation.
• At high medium temperatures, note flange pressure load capacity as a factor of temperature.
• Install the device to exclude any mechanical damage or friction during the application. Pay
particular attention to flow conditions and tank fittings.
• Support extension tube of the device if a dynamic load is expected.
Intrinsic safety
• The device is only suitable for connection to certified, intrinsically safe equipment with explosion
protection Ex ia.
• The intrinsically safe input power circuit of the device is isolated from ground. The dielectric
strength is at least 500 V
rms
.
Potential equalization
• Integrate the device into the local potential equalization.
• Grounding the screen, see the following figure.
A
4
7
8
5
6
R
C
1
2
3
2
3
– +
– +
