KROHNE BM 702 EN - Manual (Page 6)

6 Installation and operating instructions BM 702 (06/04)
2.2 Mechanical installation
Hazardous-duty systems:
• The BM 702 Ex is certified in conformity with European Standard for use in Zone 0, 1
and 2 hazardous locations (dependent on version).
• Attention is drawn to the data and information given on the nameplate of the
converter, the nameplate of the flange and the specifications in the approval
certificates.
Safety:
• Check material compatibility of antenna, extension, flange, gaskets, and PP or PTFE
(used in all versions) with the product! See also section 8 "Type code"!
Mounting on the tank nozzle
a) Devices with horn antenna:
The antenna should project out of the nozzle. If necessary, use an antenna extension.
Exception: in case of a symmetrical tank fitting.
Tank nozzle
Tank nozzle
Antenna
extension
Tank nozzle
b) Wave-Stick
Note the requirements imposed on nozzle diameter and nozzle length:
min. 50 mm
min. 200 mm
Tank nozzle
e.g. DN50
dia. 40...55 mm
Version for
still wells