KROHNE OPTIMASS with MFC 300 EN - Manual (Page 62)

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OPTIMASS 8 OPTIMASS 8000/9000
8.1 Specific Installation Guidelines
• Tighten flange bolts evenly.
• Do not stress the sensor mechanically. Clamp and support the connecting pipework accord-
ingly.
• It is permissible to support the weight of the meter on the square body.
• Cavitation and mechanical vibration should be avoided.
• Use of standard pipework reducers at the flange is allowed. Avoid extreme changes in pipe
size (step changes).
• DO NOT use flexible hoses to connect directly to the meter.
• Where the ambient temperature is below 0°C, the meter should be mounted vertically, (or
horizontally with converter upwards) in order to prevent freezing or condensation in the
housing.
Horizontal Mounting:
1
For measuring liquids, install so that the measuring tube faces downwards. This prevents a
build up of gasses when there is no liquid flowing.
2 For measuring gasses, install so that the measuring tube faces upwards. This prevents a
build up of liquid when there is no gas flowing.
8.2 Ambient / Process Temperatures
The specified and approved ambient and process temperatures must be observed.
Note:
For additional temperature limits in hazardous area applications, reference should be made to
the publication “
Guidelines for the use of Coriolis Meters in Hazardous Areas”.
Where meters are mounted in direct sunlight, it is recommended to install a sunshade. This is
particularly important in countries with high ambient temperatures.
The maximum differential temperature between the process and ambient temperature without
insulation is 80°C or 176°F
8000 9000
°C °F °C °F
Process
Safe Area -180...+230 -292...+446 0... +350 32...662
ATEX/FM/CSA
Compact
-40...+190 -40...+374 - -
ATEX/FM/CSA
Remote
-40...+230 -40...+446 0...350 32...662
Ambient
Compact Aluminium -40...+60 -40...+140 1 - -
Compact Stainless -40...+55 -40...+130 - -
Remote -40...+65 -40...+149 -40...+65 -40...+149
1
Temp range: -40...+65°C (-40...+149°F) on certain I/O options. Pleae call
Krohne for details
1 2