LS-Module


Measuring range	10...100mV/mm/s at 10...1000Hz
Suitable sensors / measuring chains	Seismic / Electrodynamic Vibration Sensors
Type of processing	Peak value rectification / RMS value rectification
Supply voltage	18 ... 36 VDC
Power consumption	max. 100 mA
Sensor sensitivity adjustment	by means of a fixed resistor
Measuring range adjustment	by means of a fixed resistor
Tape fit adjustment	by means of a fixed resistor
Default setting	MB: 0...20mm/s or 0...50µm / I_out 4...20mA at V_in 28,8mV/mm/s
Measuring circuit monitoring	Power failure / signal error
Output signal in case of error	0mA / Green LED goes out
Hold time error signal (0mA)	20 Seconds
Material module housing	Polycarbonat
Protection class	IP 20
Permissible operating temperature	-20 ... +70 °C
Connection according to UL standard	AWG/kcmil: 30-12
Clamps for wire cross-section	0,2 to 1 mm²

Signal conditioning

The output signal of the sensor is divided into three function paths at the signal input:

Signal conditioning
Decoupling for the analysis output
Measuring circuit monitoring

In signal conditioning, the AC signal is normalised to the measuring range, passed through a bandpass filter and rectified in the peak value rectifier.
rectified in the peak value rectifier. The signal is converted into a standard current signal and output as a 4...20 mA signal.

At the test output, the sensor signal is available unfiltered and decoupled for measuring and analysis purposes.

The measuring circuit monitoring detects a sensor defect as well as a power failure. In the event of a fault, the Current output is switched to 0 mA and the green LED goes out.