KROHNE OPTIMASS with MFC 05x EN User Manual

Page 25

Installation and Operating Instructions OPTIMASS

Flanged and Tri-clamp Meters

When installing these meters ensure that the pipework is supported behind the process flange, so that no

unnecessary stress is applied to the meter flanges.

1.First fix meter to firm support

2.Carefully align process flanges

and connect

3.Support process pipe close to

flanges – do not pull pipe with

clamps

4. Make final process

connections – if no connections

in this area, try to have some

flexibility in process pipe

Note :

Please note that gas bubbles can also accumulate between flange and measuring tube due to the step

change, mount vertically to avoid this.

1.3.2 Ambient / Process temperatures
The specified and approved ambient and process temperatures must be observed.

SS316L or HC22

°C

°F

Process

-40 .. +150

-40 .. +300

Compact

-40 .. +55

-40 .. +130

Ambient

Remote

-40 .. +60

-40 .. +140

Note:

Where meters are mounted in direct sunlight, it is recommended to install a sunshade. This is particularly

important in countries with high ambient temperatures.

1.3.3 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.

Measuring tube:

Stainless SS 316 L

Hastelloy

C22

The outer cylinder (Secondary Pressure containment) 304 / 304L is dual certified and with “0” rings in pairs

of Viton and hydrogenated nitrile. (Optional outer cylinder of 316/316L).

Wiring feedthrough is made of Epoxy.

Flanges all 316 / 316 L dual certified.

Optional heating jacket 316 / 316L.

Note :

Outer cylinder is in contact with heating medium.