KROHNE OPTIMASS with MFC 05x EN - Manual (Page 32)

Installation and Operating Instructions OPTIMASS 31
1.4.4 Secondary Pressure containment
The OPTIMASS 8000/9000 series sensors do not have certified secondary containment.
If the user suspects that the primary tube has failed, the unit must be depressurised and removed from
service as soon as possible.
1.4.5 Pressure de-rating
Meter data plates are stamped with maximum pressure rating (at max. operating temperature) of
connection, primary tube or secondary pressure containment (whichever is the lower). Higher pressures
may be possible at lower temperatures.
Measuring Tubes:
Process Temperature Process Temperature Process Temperature
Maximum 150 ºC / 300 ºF Maximum 230 ºC / 440 ºF Maximum 350 ºC / 660 ºF
(9000 series only)
Meter
size
barg
psig
barg
psig
barg
psig
15
210
3045
185
2680
160
2320
25
165
2390
145
2100
125
1810
40
140
2030
120
1740
105
1520
80
125
1810
110
1595
95
1375
100
85
1230
75
1085
65
940
Flanges:
DIN flanges to EN1092-1. Note also pressure / temperature limits for measuring tubes above.
0
20
40
60
80
100
120
-200 -150 -100 -50 0 50 100 150 200 250 300 350 400
Temperature ('C)
P
ressur
e
(bar
)
Flange EN1092-1 PN40
Flange EN1092-1 PN63
Flange EN1092-1 PN100