E6 15 DTR.APC.APR.ALW.03(ENG)
Appendix Exi.IECEx
3. Identifying marks
Intrinsically safe transmitters must have a rating plate containing
the information specified in paragraph 4 of DTR.APC.APR.ALW.03(ENG)
and also at least the following:
Designation of explosion protection design, certificate number;
Values of parameters such as: Ui, Ii, Pi, Ci, Li;
Year of manufacture;
Text: "Version SA" - separate power supply for transmitters with surge arresters. Power supply must be
separate to earth.
4. User information
Together with the ordered transmitters, the user will receive:
a) Product Certificate;
b) Copy of certificate (on request);
c) User’s Manual named: DTR.APC.APR.ALW.03(ENG) with Appendix Exi.IECEx.
Items b), c) are available on www.aplisens.pl
5. Permitted input parameters (based on data from the IECEx FTZÚ 14.0026X
certificate, and certification documentation)
The transmitters should be powered via the associated power feeding and measurement devices
provided with the relevant intrinsic-safe certificates. The parameters of their outputs to the danger zone
should not exceed the limit power supply parameters for the below specified transmitters.
5.1. For power supply with a linear output characteristic
Ui = 30V Ii = 0,1A Pi = 0,75W, -40ºC Ta 80ºC and T5
Power supply with a linear characteristic may be e.g. a typical barrier with parameters
Uo = 28V Io = 0,093A Rw = 300.
Fig.1. Power supply from a source with linear characteristic.
5.2. For power supply with a trapezial output characteristic
Ui = 24V Ii = 50mA Pi = 0,7W -40ºC Ta 80ºC and T5
Example of power supply from a source with trapezial characteristic (see Fig. 2).
Fig. 2. Power supply from a source with trapezial characteristic.
If Uo < then parameters Uq, Io, Po are interrelated as follows:
Uq = , Rw = , Po = for Uo ≤ 1/2U
Q
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