A1xxE, Piezoelectric sensor

Description

Piezoelectric sensor designed for measuring instantaneous vibration acceleration in the range from 0 to 100 m/s² at temperatures from –40 to +180 °C.
The output signal is proportional to the instantaneous vibration acceleration value; interface – 4–20 mA current loop.
Used in vibration monitoring channels of supports together with the controllers of the "Vibrobit 300" and "Vibrobit 500" systems.

Key features:

External amplifier
3-wire connection scheme
Extended temperature range

Specifications

Measurement principle	piezoelectric
Измеряемый параметр	vibration acceleration (instantaneous value)
Compatibility with transducers	-
Measurement ranges	0 – 50; 0 – 100 m/s²
Frequency range	2 – 3500; 10 – 3500 Hz
Registry number	78471–20
Limits of permissible basic measurement error, %	±4.0
Calibration interval, years	2
Output type	4 – 20 mA current loop
Load resistance, Ohm (max)	600
Connection diagram (number of lines)	3-wire
Power supply voltage range, V	+ (18 – 30)
Current consumption, (max) мА	35
Operating temperature range, °С	−40 to +180 (piezoelectric vibroconverter) −40 to +85 (connector)
Housing index of protection according to GOST 14254	IP67 (piezoelectric vibroconverter)
Resistance to external influencing factors GOST 30631–99	M5
Transducers connection type	-
Overall dimensions, mm	242447 (piezoelectric vibroconverter) Ø18*67 (connector)
Service life, years (min.)	10
Warranty period, months	24
MTBF, hours	150 000

Applications

Measurement of the absolute vibration acceleration of steam, gas and hydraulic turbine units, turbocompressors, centrifugal pumps and other machines during their operation.
The sensor can be used both independently and as part of the measurement channels of the plant's SCADA systems.