Siemens SITRANS TF Series, Краткое руководство по эксплуатации

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SITRANS TH/TR/TF
A5E32520700-01, 06/2013
13
4.1 Safety notes for connecting in hazardous areas TH100
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
= 106 μH C
i
= 7.3 nF
Maximum values of the sensor circuit for Ex ia:
U
0
= 9.6 V DC: I
0
= 7.6 mA P
0
= 12.5 mW
L
0
[mH] 50 10 2 0,5
C
0
[nF] 560 700 940 1250
● 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.
Zone 2 in type of protection "ic"
● Only connect the transmitter to devices that have at least been approved as "ic" certified devices (intrinsically safe) of
Category 3.
● Be sure to observe the respective values.
● 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
= 32 V DC I
i
= 100 mA P
i
= 750 mW
L
i
= 106 μH C
i
= 7.3 nF
Maximum values of the sensor circuit
U
0
= 9.6 V DC: I
0
= 7.6 mA P
0
= 12.5 mW
L
0
[mH] 50 10 2 0,5
C
0
[nF] 560 700 940 1250
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
= 35 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
= 9.6 V DC: I
0
= 7.6 mA P
0
= 12.5 mW
L
0
[mH] 50 10 2 0,5
C
0
[nF] 560 700 940 1250
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.