KROHNE OPTIMASS with MFC 300 EN - Manual (Page 12)

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OPTIMASS 4 OPTIMASS 1000
4.1 Specific Installation Guidelines
• Tighten flange bolts evenly.
• Observe the pipe end loads as shown in s. 4.6
• It is permissible to support the weight of the meter on the body.
• Use of standard pipework reducers at the flange is allowed. Avoid extreme changes in pipe
size (step changes).
• The use of flexible hoses directly at the meter is permitted.
• The meter can be installed so that the converter is on the side of the meter, resulting in the
measuring tubes on top of each other, unless gases or solids are being measured.
• The 1000 series has exceptional immunity to cross-talk, therefore allowing meters to be
used in series.
4.2 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 110°C or 200°F.
To avoid thermal shock, the meter MUST not be subject to rapid changes in process tempra-
tures and reference should be made to the following table
The outer cylinder 304 / 304L is dual certified (Optional outer cylinder of 316/316L). This also
applies to PED certified housings.
Wiring feedthrough is made of Epoxy (or PEEK) with 2 ‘O’ ring seals in FPM / FKM &
Hydrogenated Nitrile.
Operation outside these limits may result in shifts in density and mass flow calibration.
Repeated shocking may also lead to premature failure of the meter!
4.3 Pressure Equipment Directive (PED) requirements
To comply with the requirements of the PED in Europe, the following information is provided to
assist the plant engineer in installing the meter:
Meter Max. Temperature Shift
S15 & S25 80°C
S40 & S50 110°C
Measuring tube: Sealing Faces:
Stainless Steel UNS 31803 Stainless Steel 316L
SS318L
°C °F
Process All meters -45...+130 -49...266
Ambient
Compact Al. -40...+60 40...+140
Compact Al. with certain I/O options (consult Krohne) -40...+65 -40...+149
Compact SS -40...+55 -40...+131
Remote -40...+65 -40...+149