15
UK
6.1.3 Installation using a process adapter with metal-to-metal seal
Order no� E337xx / E338xx
A long-term stable and maintenance-free fitting without bug traps in the metal-to-
metal seal is only valid for once-only mounting�
If the sealing has to be installed several times, use a new adapter�
6.1.4 Installation to G 1 flange
The process is sealed with the sealing ring at the back of the sensor�
The sealing area at the flange must be flush with the tapped hole and have a
surface characteristic of min� Rz = 6�3�
6.2 Units with process connection G ½ sealing cone
Fitting to the process connection:
Installation using an adapter with metal-to-metal seal
Recommended tightening torque: 30���50 Nm�
6.3 Use in hygienic areas to 3-A
The following applies to units with 3-A
certification:
►
Only use adapters with 3-A
certification for the process
connection�
►
Do not install the unit at the lowest
point of the pipe or tank (→ position
5) in order that the medium can
run off the area of the measuring
element�
