Endress+Hauser Prosonic M FMU40 Sicherheitshinweise Seite 11

Prosonic M
Safety instructions:
Zone 0
Endress+Hauser
Tab. 1
Zone 1 - Application
Temperature class
T6
T5, T4
Tab. 2a
Power supply and signal circuit in protection type: intrinsic safety Ex ia IIC or IIB
Only for connection to a certified intrinsically safe circuit with the following maximum values:
Ui = 30 V
Ii = 300 mA
Pi = 1 W
Tab. 2b
Option
Power supply and signal circuit for remote display, e.g. FHX40, in protection type:
intrinsic safety Ex ia IIC or IIB
Uo = 4.2 V
Io = 34 mA
Po = 36 mW
For connecting the Commubox service interface with the associated ToF cable:
Commubox output + ToF cable:
Uo = 3.74 V
Io = 9.9 mA
Po = 9.2 mW
When interconnected to a Prosonic M, the following results apply:
for material group: Lo =
IIC Co
IIB Co
• Only operate devices in potentially explosive vapour/air mixtures under atmospheric conditions:
–20 °C ≤ T ≤ +60 °C
800 hPa ≤ p ≤ 1100 hPa
• If no potentially explosive mixtures are present, or if additional protective measures have been taken,
according to EN1127-1, the transmitters may be operated under other atmospheric conditions in accordance
with the manufacturer's specifications.
• Only install the devices in media for which the wetted materials have sufficient durability.
• Associated apparatus with galvanic isolation between the intrinsically safe and non-intrinsically safe circuits
are preferred.
Ambient temperature
–40...+60 °C
–40...+80 °C
Li = negligible
Ci = 13 nF
effective inner inductance
effective inner capacitance
Characteristic curve: linear
effective inner inductance
effective inner capacitance
Characteristic curve: linear
for material group IIC:
permitted outer inductance
permitted outer capacitance
0.15 mH 0.5 mH
≤ 8 μF ≤ 7 μF
KEMA 02 ATEX 1006 / XA174F-D
Li = negligible
Ci = negligible
Li = negligible
Ci = negligible
Lo ≤ 340 mH
Co ≤ 100 μF
1 mH 2 mH
≤ 5.5 μF ≤ 5 μF
≤ 10 μF
5 mH
≤ 4 μF
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