KROHNE BM 100A Handbook - Manual (Page 8)

8 Handbook BM 100 A
1.2 Installation restrictions
Hazardous-duty systems (Ex, FM…)
• refer to the supplementary instructions for gauges approved for use in hazardous locations
before installation.
• check that the flange, gasket and probe materials are compatible with the product. Read the
information given on the converter nameplate, the flange markings and specifications in the
approval certificates.
1.3 Mounting on a tank
1.3.1 Installation instructions: General notes
The fitter should give some thought to tank fittings and tank shape:
• nozzle position in relation to the tank walls and other objects inside the tanks
(Warning : this free area will depend on the probe type selected: refer to later on in this section)
• type of tank roof , i.e. floating, concrete, integral, etc; and base, i.e. conical,etc.
1.3.2 Installation instructions: Nozzle
Nozzle height
Recommendation (especially for single probes and powder applications):
Do not fit a nozzle longer than its diameter.
h
≤ Ød , where h = nozzle height and d = nozzle diameter.
Contact KROHNE if this relationship cannot be respected.