Temperature Specification In Hazardous Areas - Siemens SITRANS FC620 Operating Instructions Manual

Coriolis flowmeters
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FC6x0
Operating conditions
Temperature range
specification High,
remote type
Order code:
Pos. 12: 8
-35 (-31)
Fig. 36: Allowed process fluid and ambient temperatures, remote type
1
2

9.2.2 Temperature specification in hazardous areas

Please select appropriate equipment in accordance with the laws and regulations of the
relevant country/region, when it is used in a location where explosive atmospheres may
be present.
The maximum ambient and process fluid temperatures of Compact type and Remote
Sensor depending on explosion groups and temperature classes can be determined via
the order code or via the order code together with the Ex code (see the corresponding
Explosion Proof Type Reference Manual).
Note: The maximum process fluid temperature could be further restricted due to
process connection type see Allowed ambient temperature for sensor [} 49].
Order code:
The following figure shows the relevant positions of the order code:
Pos. 6: 6
Pos. 12: 1, 6
Pos. 14: A, B
Pos. 15: B, D, F, H,
M, P, U
Ex code:
Tab. 6: Temperature classification
6.85.86.87.54.10
Temperature
54 / 194
°C (°F)
80 (176)
60 (140)
40 (104)
20 (68)
0 (32)
-20 (-4)
-40 (-40)
-200
-100
0
(-328)
(-148)
(32)
(176)
Standard cable option L5x/L6x
Limitation for fire retardant cable option L7x/L8x
7 M E 4 4 x
-
5 6
7
Maximum ambient temperature
class
T6
T5
T4
T3
T2
T1
A5E52748375-AA, 2023/09
100
200
300
350
(392)
(572)
(662)
(212)
80
220
T
(428)
pro
-
8 9 10 11
12
13 14 15 16
in °C (°F)
43 (109)
58 (136)
60 (140)
60 (140)
60 (140)
60 (140)
Ambient conditions
1
2
2
°C
(°F)
-
Z
Maximum process fluid
temperature
in °C (°F)
66 (150)
82 (179)
118 (244)
150 (302)
150 (302)
150 (302)

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