Siemens SITRANS TSinsert - Page 130

Gas Dust
SITRANS TS500 in "intrinsic safety Ex i"
- or -
in "Non-sparking nA/ec"
in "󹪞ameproof enclosure (Ex d)" is part of "intrinsic safety Ex i"
- or -
in "non-intrinsically safe cir‐
cuits (Ex tb)"
With temperature
transmitters
SITRANS
TH100/200/300
with DVM LCD
(7MF4997-1BS)
T
a_max
= T
3
≤ T
2
T
3
= see Gas hazardous area
Zone 1 / Div. 1 (Page 131).
T
2
= see
Table 11-3 Gas Ex i/nA/ec
(Page 133),
Table 11-4 Gas Ex i/nA/ec
(Page 134),
Table 11-5 Type 2N (Page 134)
and
Table 11-6 Type 2N (Page 135).
See header TS500 with electron‐
ics in
Table 11-7 Gas Ex d (Page 135)
and
Table 11-8 Type 2N (Page 136).
T
a_max
= T
3
T
3
= see Table 11-2 Dust hazard‐
ous area Zone 21 (Page 131).
With temperature
transmitters SI‐
TRANS TH320/420
with display
(7MF7902-1AD)
T
a_max
= T
3
≤ T
2
T
3
= see
Table 11-1 Gas hazardous area
Zone 1 (Page 131).
T
2
= see
Table 11-3 Gas Ex i/nA/ec
(Page 133),
Table 11-4 Gas Ex i/nA/ec
(Page 134),
Table 11-5 Type 2N (Page 134)
and
Table 11-6 Type 2N (Page 135).
See header TS500 with electron‐
ics in
Table 11-7 Gas Ex d (Page 135)
and
Table 11-8 Type 2N (Page 136).
T
a_max
= T
3
T
3
= see Table 11-2 Dust hazard‐
ous area Zone 21 (Page 131).
T
1
= Max. permissible ambient temperature of the temperature transmitter according to certi󹪝cate
T
2
= Max. permissible ambient temperature of the respective connection head without transmitter
T
3
= Max. permissible ambient temperature SITRANS TH100/200/300 with DVM LCD (7MF4997-1BS) or SITRANS TH320/420 with
display (7MF7902-1AD)
See also
SITRANS TH100/200/300 with DVM LCD or SITRANS TH320/420 with display (Page 131)
Gas hazardous area: Ex i / IS / Ex nA/ec / NI (Page 133)
Gas hazardous area: Ex d / XP (Page 135)
Product documentation (Page 189)
Technical data
11.1 Rated conditions
SITRANS TS100/TS200/TS300/TS500/TSinsert/TSthermowell
130 Operating Instructions, 08/2020, A5E47810090-AA