Instruction manual Ex/ATEX products-02
July 2021
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Instruction manual supplement
Ex/ATEX products
Covers HBSO, HBSR, HBSC2, HBLC, HBLT, HBLS and HBX
Introduction
The sensors and switches designed for hazardous areas all use a two-wire connection. This means
the output will be 4-20 mA and the output will normally pass through a barrier before it is
connected to a PLC. For level sensors normally providing an analog output will still be a 4-20 mA
signal linear to the measurement. For level switches the output will be 4 mA representing off and
20 mA representing on.
The sensors and switches can be setup like normal products but when in operation only pin 1 and
4 will be in operation.
Calibration can be done using the HB-
tool like normal sensors or the “R”
button can be used inside
the hazardous zone where you cannot bring a PC.
