V1xx, Piezoelectric sensor
Description
Piezoelectric sensor designed for measuring instantaneous vibration velocity in the range from 0 to 100 mm/s at temperatures from –40 to +85 °C.
The output signal is proportional to the instantaneous vibration velocity value; interface 4–20 mA current.
Used in vibration monitoring channels of supports together with the controllers of the "Vibrobit 300" and "Vibrobit 500" systems.
Key features:
- Mounting resonance frequency 14–15 (29–30) kHz
- 2-wire connection scheme
Specifications
| Measurement principle | piezoelectric |
| Measured parameter | vibration velocity (instantaneous value) |
| Compatibility with transducers | - |
| Measurement ranges | 0 – 30; 0 – 100 mm/s |
| Frequency range | 2 – 2500; 10 – 2500 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) | 300 |
| Connection diagram (number of lines) | 2-wire |
| Power supply voltage range, V | + (22 – 30) |
| Current consumption, (max) мА | 22 |
| Operating temperature range, °С | −40 to +85 (piezoelectric vibroconverter) |
| 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 | 24*24*47 (piezoelectric vibroconverter) |
| Service life, years (min.) | 10 |
| Warranty period, months | 24 |
| MTBF, hours | 150 000 |
Applications
Measurement of the absolute vibration velocity 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.
The sensor can be used both independently and as part of the measurement channels of the plant's SCADA systems.
Dimensions and connection diagram
Housin type - Ш24М8
Housing type - triangle
