Siemens SITRANS P - Manual (Page 37)

SITRANS P measuring instruments for pressure
Transmitters for food, pharmaceuticals and biotechnology
SITRANS P300 for gage and absolute pressure
2/37 Siemens FI 01 · 2009
2
Power supply U
H
Terminal voltage on transmitter 10.5 ... 42 V DC
for intrinsically safe operation: 10.5 ... 30 V DC Supplied through bus
Separate power supply - Not necessary
Bus voltage
• Without EEx - 9 ... 32 V
• For intrinsically-safe operation - 9 ... 24 V
Current consumption
• Max. basic current - 12.5 mA
• Startup current ≤ basic current - Yes
• Max. fault current in the event of a fault - 15.5 mA
Fault disconnection electronics (FDE) - Available
Certificate and approvals
Classification according to pressure equip-
ment directive (DRGL 97/23/EC) For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3, para-
graph 3 (sound engineering practice)
Water, waste water Available soon
Explosion protection
Intrinsic safety "i" PTB 05 ATEX 2048
Identification Ex II 1/2 G EEx ia/ib IIB/IIC T4, T5, T6
Permissible ambient temperature
• Temperature class T4 -40 ... +85 °C (-40 ... +185 °F)
• Temperature class T5 -40 ... +70 °C (-40 ... +158 °F)
• Temperature class T6 -40 ... +60 °C (-40 ... +140 °F)
Connection To certified intrinsically-safe circuits with maxi-
mum values:
U
i
= 30 V, I
i
= 100 mA,
P
i
= 750 mW, R
i
= 300 Ω
To certified intrinsically-safe circuits with maxi-
mum values:
FISCO supply unit:
U
i
= 17.5 V, I
i
= 380 mA, P
i
= 5.32 W
Linear barrier:
U
i
= 24 V, I
i
= 250 mA, P
i
= 1.2 W
Effective inner capacitance: C
i
= 6 nF C
i
= 1.1 nF
Effective inner inductance: L
i
= 0.4 mH L
i
≤ 7 μH
Explosion protection to FM for USA and
Canada (cFMUS)
• Identification (DIP) or (IS); (NI) Certificate of Compliance 3025099
CL I, DIV 1, GP ABCD T4 ... T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4 ... T6;
CL I, DIV 2, GP ABCD T4 ... T6; CL II, DIV 2, GP FG; CL III
• Identification (DIP) or (IS) Certificate of Compliance 3025099C
CL I, DIV 1, GP ABCD T4 ... T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC 4 ... T6;
CL I, DIV 2, GP ABCD T4 ... T6; CL II, DIV 2, GP FG; CL III
SITRANS P300 for gage pressure and absolute pressure
HART PROFIBUS PA and FOUNDATION Fieldbus
© Siemens AG 2008