KROHNE BM 702 A EN - Manual (Page 26)

3
INSTALLATION
26
BM 702 A
www.krohne.com 09/2009 - 4000643301 - MA BM 702 A R01 en
3.8.2 How to install a device with a threaded connection
Equipment needed:
• Device
• Gasket for G1½ or 1½NPT connection (not supplied)
• Make sure the tank connection is level.
• Make sure that you use the applicable gasket for the connection dimensions and the process.
• Make sure the tank connection is larger than the antenna.
• If the tank connection is smaller than the antenna, remove the antenna from the housing.
i Either provide the means to adapt the device to a larger process connection on the tank (for
example, a plate with a slot), or use the same process connection, but remove the antenna
from the device before installation and attach it from inside the tank.
• Align the gasket correctly.
• Lower the antenna carefully into the tank.
• Turn the threaded connection on the housing to attach the device to the process connection.
• Tighten the connection.
i Refer to local rules and regulations for the correct torque to apply to the connection.
• If the tank connection is smaller than the antenna, attach the antenna from inside the tank.
Requirements for threaded connections
Figure 3-13: Threaded connection
.book Page 26 Thursday, September 3, 2009 2:53 PM