Extract IEC 60079-11:2023 chap. 5.5 (The following may be considered to be simple apparatus:
a) passive components, for example, switches, junction boxes, resistors and simple semiconductor devices.
b) sources of stored energy consisting of single components in simple circuits with well-defined parameters, for example, capacitors or inductors, whose values shall be considered when determining the overall safety of the system; and
c) sources of generated energy, for example, thermocouples and photocells, which do not generate more than 1,5 V, 100 mA and 25 mW.
The SITRANS TS200 without integrated IO-Link/4…20mA transmitter electronic is a simple resistance thermometer with various sensor types (Pt100/Pt1000 or thermocouples type J or K) with no own source of ignition such as capacitance or inductance. The complete energy within the intrinsic safe loop is provided by the connected transmitter unit, such as SITRANS TR320. The sensor does not store any energy. All relevant electrical data for the interconnection with the transmitter is described in the valid manufacture declaration which is published on the product website.