Siemens SITRANS TH400 Operating Instructions Manual page 51

Model SITRANS TH 400
7NG321*-0AN00
Hazardous (Classified) Location
Class I,Division2, Groups, A,B,C,D
Class I, Zone 1, IIC
Approved
Termi-
3
nation
Terminal 3, 4, 5, 6
Vt or Uo : 5,71 V
It or Io : 8,4 mA
Pt or Po : 12 mW
Ca or Co : 40 uF
La or Lo : 200 mH
Entity
Parameters
Terminal 1, 2
Class I, Zone 1, Ex ib IIC
Entity / FISCO
Barrier type: Rectangular
barrier
Ta ≤ +85°C
T1..T4:
Ta ≤ +75°C
T5:
Ta ≤ +60°C
T6:
Vmax / Ui 30 V
Imax or Ii 250 mA
Pi 5.32 W
Ci 2.0 nF
1 μH
Li
SITRANS TH400
Operating Instructions, 06/2010, A5E01018688-02
1 1
2
6 3
4 5 4
SENSOR SENSOR
FISCO
Segment
coupler
Ta ≤ +85°C
Ta ≤ +75°C
Ta ≤ +60°C
17.5 V
any
any
2.0 nF
1 μH
1
2 2
6 3 6
5 4 5
SENSOR
Nonincendive Field Wiring
parameters
Terminal 1, 2
NI, Class I, Division 2, Group A, B, C, D
NIFW/ FNICO
T1..T4:
T5:
T6:
Vmax / Ui
Pi
Ci
Li
For a current-controlled circuit the
parameter Imax is not required and need
not be aligned with the parameter Isc or It
of the barrier or associated nonincendive
field wiring apparatus.
A.2 Control drawing
Non-hazardous Location
Associated Apparatus
Barrier with
entity Parameters:
UM < 250V
Voc or Uo < Vmax or Ui
Isc or Io < Imax or Ii
Po < Pi
Ca or Co > Ci + Ccable
La or Lo > Li + Lcable
or
FISCO Supply
This device must not be
connected to any
associated apparatus
which uses or generates
more than 250 VRMS
Ta ≤ +85°C Ta ≤ +85°C
Ta ≤ +75°C Ta ≤ +75°C
Ta ≤ +60°C Ta ≤ +60°C
30 V 17.5 V
5.32 W any
2.0 nF 2.0 nF
1 μH 1 μH
Appendix
51