Rechner Sensors N-132, Adjustment Instructions Manual

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201202 / 9170613310
2018-11-20·BA00·III·en·09
Function and Device Design
7
Isolating Switching Amplifier
N-132
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3.4 Modifications and Alterations
4 Function and Device Design
4.1 Function
Application range
The isolating switching amplifier is used for intrinsically safe operation of proximity
and level sensors. Various output variants with relay contacts or electronic output are
available.
Mode of operation
The isolating switching amplifier assesses a digital signal from an intrinsically safe circuit.
It transmits the switching state of its input to the output.
The isolating switching amplifier checks if there are line faults (wire breakage and line
short circuit) in the electric lines between the isolating switching amplifier and sensor.
If an error is detected, this will be output in the form of a error message.
The corresponding switching outputs enter a de-energised state.
DANGER
Explosion hazard due to modifications and alterations to the device!
Non-compliance results in severe or fatal injuries.
• Do not modify or alter the device.
No liability or warranty for damage resulting from modifications and
alterations.
DANGER
Explosion hazard due to improper use!
Non-compliance results in severe or fatal injuries.
• Use the device only in accordance with the operating conditions
described in these operating instructions.
• Use the device only for the intended purpose specified in these
operating instructions.