Siemens SITRANS T Series, Краткое руководство по эксплуатации

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SITRANS TH/TR/TF
14
A5E32520716-01, 06/2013
4.2 Safety notes for connecting in hazardous TH200/300
The 4 to 20 mA input and sensor circuits are electrically isolated and have been tested with a voltage of 1.5 kV DC/1 minute.
The sensor circuit is reliably galvanically isolated from the auxiliary power supply and signal circuit, up to a peak value of the
rated voltage of 60 V. Be sure to observe the construction directives valid at the construction location for electrical resources
in hazardous areas. In Europe, this is the standard EN 60079-14.
Zone 0, 1, 2 in type of protection "ia/ib/ic" - intrinsic safety
● Only connect the transmitter, in accordance with the certificate of compliance, to devices certified as intrinsically-safe.
● If the connection head is made of aluminum, the requirements of EN 60079-26, section 4.3.3, must be observed for uses
where the device category 1 G is required.
● The transmitter must be mounted in an enclosure in order to provide a degree of protection of at least IP20 according to
EN60529
Maximum values of the auxiliary power supply and signal circuits:
U
i
= 30 V DC I
i
= 100 mA P
i
= 750 mW
L
i
= 104 μH C
i
= 11 nF
Maximum values of the sensor circuit for Ex ia:
U
0
= 6 V DC: I
0
= 25 mA P
0
= 37 mW
L
0
[mH] 50 10 1 0.1
C
0
[μF] 1 1.6 2.6 4.8
Zone 2 in type of protection "nA" - non-sparking resources
● Install the transmitter in an enclosure meeting the degree of protection IP54 per EN 60529, e.g. in a type B connection
head per DIN 43729.
● Adhere to the conditions for installers applicable to this type of protection.
● The maximum approved input voltage is U
n
= 32 V DC.
● Take measures to ensure that the supply voltage (including transients) does not rise above 140 % of the rated voltage.
Maximum values of the sensor circuit:
U
0
= 6 V DC: I
0
= 25 mA P
0
= 37 mW
L
0
[mH] 50 10 1 0.1
C
0
[ μF] 1 1.6 2.6 4.8
Additional requirements for use in dust explosion protected areas
Install the transmitter in an enclosure suitable for the respective type of dust and corresponding Zone in accordance with the
inspection certificate valid in your country.
4.3 Safety notes for connecting in hazardous TR200/300
The 4 to 20 mA input and sensor circuits are electrically isolated and have been tested with a voltage of 1.5 kV DC/1 minute.
The sensor circuit is reliably galvanically isolated from the auxiliary power supply and signal circuit, up to a peak value of the
rated voltage of 60 V. Be sure to observe the construction directives valid at the construction location for electrical resources
in hazardous areas. In Europe, this is the standard EN 60079-14.
Zone 0, 1, 2 in type of protection "ia/ib/ic" - intrinsic safety
● Only connect the transmitter, in accordance with the certificate of compliance, to devices certified as intrinsically-safe.
Maximum values of the auxiliary power supply and signal circuits:
U
i
= 30 V DC I
i
= 100 mA P
i
= 750 mW
L
i
= 2 μH C
i
= 13 nF