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Summary of Contents for IFM N0537A
- Page 1 Operating instructions Switching amplifiers N0537A N0538A N0539A...
- Page 2 Contents 1 Preliminary note ..................... 3 2 Safety instructions..................3 3 Intended use ....................3 Classification................... 4 ATEX certificate ..................4 IECEx certificate ..................4 Identification.................... 4 4 Installation...................... 4 Requirements for cables and connection cables ........5 Requirements in case of use as associated equipment......5 Requirements for use with equipment protection level Gc......
- Page 3 1 Preliminary note You will find instructions, technical data, approvals and further information using the QR code on the unit / packaging or at www.ifm.com. 2 Safety instructions • The unit described is a subcomponent for integration into a system. – The system architect is responsible for the safety of the system.
- Page 4 The unit is an associated equipment according to IEC/EN 60079-11. The unit is not suitable for separating signals in power measurement technology. The unit transmits binary signals of NAMUR sensors or mechanical contacts from the hazardous area into the non-hazardous area. u Only use the unit within the permissible operating conditions.
- Page 5 u Install the unit outside the hazardous area. The unit has the protection rating IP20 according to IEC/EN 60529. u Only install and use the unit under operating conditions that do not exceed soiling degree 2 according to IEC EN 60664-1. In case of use under operating conditions with a higher degree of soiling, the unit must be protected accordingly.
- Page 6 u Make sure the separation distances between two neighbouring intrinsically safe circuits according to IEC/EN 60079-14 are observed. u If the unit is connected to intrinsically safe equipment, the upper limiting values of the unit must be observed. u If intrinsically safe units are connected to the intrinsically safe circuits of the corresponding equipment, the respective upper limiting values consistent with the explosion protection according to IEC/EN 60079-14 or IEC/EN 60079-25 must be observed (proof of intrinsic safety).
- Page 7 Maximum permissible values of the control circuits in type of protection intrinsic safety Power 45 mW External inductance 200 mH (IIC) / 740 mH (IIB) External capacitance 2.4 µF (IIC) / 16.8 µF (IIB) 6 Operating and display elements Ι ΙΙ Ι...
- Page 8 4: Selector switch S1 Programming the output function S1 / S2 = 1: direct operation (output switches like input signal: IN = ON ➔ OUT = ON). 5: Selector switch S2 S1 / S2 = 2: inverted operation (output switches opposed to the in- put signal: (IN = ON ➔...
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