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Process conditions
JIS 10K, JIS 20K
p in bar
Fig. 17: Allowed process pressure as a function of process fluid temperature
1
2
Rupture disc
The rupture disc is located on the sensor housing. It is available as an option, see order
code position -Z in the table of chapter Order code description under the same heading
Rupture disc. The rupture disc's bursting pressure is 20 bar (291 psi), the nominal
diameter is 8 mm (0.315 in.). In the case of big nominal diameters and high pressures, it
is not possible to ensure that the entire process pressure is released across the rupture
disc. In such case it is possible to request a customized design from the responsible
Siemens sales organization. In the event of a burst pipe, the rupture disc provides an
acoustic signal in applications with gases.
9.1.4 Insulation and heat tracing
In case it is necessary fluid temperature deviates more than 80 °C (176 °F) from
ambient temperature, sensor insulation is recommended to avoid negative effects
from temperature fluctuations.
Overview of device options for insulation and heat tracing for remote type
Options
T10
T21, T22, T26
T31, T32, T36
For details about the ordering information see order code position -Z in the table of
chapter Order code description under the same heading Insulation and heat tracing.
(psi)
40 (580)
35 (508)
30 (435)
25 (363)
20 (290)
15 (218)
10 (145)
5 (76)
0
-50
0
(32)
(-58)
-70
(-94)
Process connection compatible to JIS B 2220 10K
Process connection compatible to JIS B 2220 20K
7 M E 4 4 x
-
5 6
7
Description
50
100
150
200
(212)
(302)
(392)
(122)
-
8 9 10 11
12
13 14 15 16
▪ Insulation
▪ Insulation
▪ Heat tracing without purging
▪ Insulation
▪ Heat tracing with purging
A5E52748387-AA, 2023/09
FC7x0
Operating conditions
2
1
T in °C
250
300
350
(482)
(572)
(662)
-
Z
(°F)
41 / 180
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