Siemens SITRANS T Series Compact Operating Instructions page 42

Technical data
7.1 Rated conditions
SITRANS TS500 in "intrinsic safety Ex i"
- or -
in "Non-sparking nA/ec"
With temperature T
a_max
transmitters
T = see Gas hazardous area
3
SITRANS
Zone 1 / Div. 1 (Page 43).
TH100/200/300
T = see
with DVM LCD
2
Table 7-3 Gas Ex i/nA/ec
(7MF4997-1BS)
(Page 45),
Table 7-4 Gas Ex i/nA/ec
(Page 46),
Table 7-5 Type 2N (Page 46) and
Table 7-6 Type 2N (Page 47).
With temperature T
a_max
transmitters SI‐
T = see
3
TRANS TH320/420
Table 7-1 Gas hazardous area
with display
Zone 1 (Page 43).
(7MF7902-1AD)
T = see
2
Table 7-3 Gas Ex i/nA/ec
(Page 45),
Table 7-4 Gas Ex i/nA/ec
(Page 46),
Table 7-5 Type 2N (Page 46) and
Table 7-6 Type 2N (Page 47).
T = Max. permissible ambient temperature of the temperature transmitter according to certificate
1
T = Max. permissible ambient temperature of the respective connection head without transmitter
2
T = Max. permissible ambient temperature SITRANS TH100/200/300 with DVM LCD (7MF4997-1BS) or SITRANS TH320/420 with
3
display (7MF7902-1AD)
See also
SITRANS TH100/200/300 with DVM LCD or SITRANS TH320/420 with display (Page 43)
Gas hazardous area: Ex i / IS / Ex nA/ec / NI (Page 45)
Gas hazardous area: Ex d / XP (Page 47)
42
= T ≤ T
3 2
= T ≤ T
3 2
Gas
in "flameproof enclosure (Ex d)" is part of "intrinsic safety Ex i"
See header TS500 with electron‐
ics in
Table 7-7 Gas Ex d (Page 47) and
Table 7-8 Type 2N (Page 48).
See header TS500 with electron‐
ics in
Table 7-7 Gas Ex d (Page 47) and
Table 7-8 Type 2N (Page 48).
SITRANS TS100/TS200/TS300/TS500/TSinsert/TSthermowell
Compact Operating Instructions, 08/2020, A5E03920348-AF
Dust
- or -
in "non-intrinsically safe cir‐
cuits (Ex tb)"
T = T
a_max 3
T = see Table 7-2 Dust hazardous
3
area Zone 21 (Page 43).
T = T
a_max 3
T = see Table 7-2 Dust hazardous
3
area Zone 21 (Page 43).