Siemens sitrans tr300, Manual

Page: 24 / 96

Connecting
5.1 Safety notes on connection
SITRANS TR200/TR300
Operating Instructions, 06/2010, A5E01071992-03
23
Zone 1 in type of protection "i" - 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
= DC 30 V I
i
= 100 mA P
i
= 750 mW
L
i
= 2 μH C
i
= 13 nF
Maximum values of the sensor circuit:
U
0
=DC 6 V: 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 "ic" - device connection through intrinsic safety
● Install the transmitter in a housing to degree of protection IP54 according to EN 60529.
● Connect the transmitter only to devices that have been approved as "ic" certified devices
(device protection through intrinsic safety) in category 3.
● Be sure to observe the respective values.
Maximum values of the auxiliary power supply and signal circuits:
U
i
= DC 30 V I
i
= 100 mA P
i
= 750 mW
L
i
= 2 μH C
i
= 13 nF
Zone 2 in type of protection "nA" - non-sparking resources
● Install the transmitter in a housing to degree of protection IP54 according to EN 60529.
● 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.
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.