Technical data
Proline Promass F 500 EtherNet/IP
270
The following secondary containment pressure ratings/burst pressures are only valid for
standard devices and/or devices equipped with closed purge connections (never opened/as
delivered).
If a device fitted with purge connections (order code for "Sensor option", option
CH
"Purge
connection") is connected to the purge system, the maximum nominal pressure is
determined by the purge system itself or by the device, depending on which component
has the lower nominal pressure classification.
If the device is fitted with a rupture disk (order code for "Sensor option", option
CA
"Rupture
disk"), the rupture disk trigger pressure is decisive for the maximum nominal pressure
→ 271.
The secondary containment burst pressure refers to a typical internal pressure achieved
prior to mechanical failure of the secondary containment as determined during type
testing. The corresponding type test declaration can be ordered with the device (order code
for "Additional approval", option
LN
"Type test containment").
DN
Secondary containment
pressure rating
(designed with a safety factor
≥ 4)
Secondary containment burst pressure
[mm]
[in]
[bar]
[psi]
[bar]
[psi]
8
³⁄₈
40
580
255
3
698
15
½
40
580
200
2
900
25
1
40
580
280
4
060
40
1½
40
580
180
2
610
50
2
40
580
195
2
828
80
3
25
362
105
1
522
100
4
16
232
85
1
232
150
6
16
232
80
1
160
250
10
10
145
57
826
If a measuring tube fails (e.g. due to process characteristics like corrosive or abrasive
fluids), the fluid will be contained by the secondary containment.
If there is a need to drain the leaking medium into a discharge device, the sensor should be
fitted with a rupture disk. Connect the discharge to the additional threaded connection .
If the sensor is to be purged with gas (gas detection), it should be equipped with purge
connections.
Do not open the purge connections unless the containment can be filled immediately
with a dry, inert gas. Use only low pressure to purge. Maximum pressure:
5 bar (72.5 psi).
In case of a tube failure, the pressure level inside the secondary containment will rise
according to the operating process pressure. If the user judges that the secondary
containment pressure rating/burst pressure does not provide an adequate safety margin,
the device can be fitted with a rupture disk. This prevents excessively high pressure from
forming inside the secondary containment. Therefore, the use of a rupture disk is strongly
recommended in applications involving high gas pressures, and particularly in applications
