Vibration transducer КD618
Vibration transducer КD618, manufactured by LLC "Komdiagnostika", provides information about the current technical condition of the pump equipment based on vibration levels and temperature at the installation site.
Vibration transducer КD618 is piezoelectric accelerometer of inertia type, which uses direct piezoelectric effect with integrated temperature sensor. Sensitive element electric charge is proportional to acceleration affecting the vibration transducer.
Application: measurement of absolute vibration and temperature of the controlled rotating and reciprocating units during their operation.
Vibration transducer КD618 is an explosion proof device and has the marking «0ExiaIICT4 Х» according to GOST 30852.0-2002, GOST 30852.10-2002.
Technical specification of КD618 is proved by TR CU certificate No. ТС RU C-RU. ГБ08.В.02222 (validity period 27.12.2016 - 26.12.2021).
Main specifications of KD618:
| No. | Description | Meas.unit | Value |
| 1. | Vibration measuring range (peak) | m/sec2 | from 0,1 to 500 |
| 2. | Frequency range | Hz | from 2 to 10000 |
| 3. | Nominal conversion efficiency at base frequency of 45 Hz | mV/m·sec-2 | 10,2 |
| 4. | Acceptable tolerance limits of conversion coefficient from nominal value, in normal conditions | % | ±5 |
| 5. | Bandpass flatness within operating frequency range, max | dB | ±3 |
| 6. | Amplitude nonlinearity, max | % | ±1 |
| 7. | Acceptable tolerance limits of conversion coefficient from the real value within operating temperature range | % | ±0,1 |
| 8. | Relative coefficient of transverse transduction, max | % | 5 |
| 9. | Displacement voltage at the temp. of 20 ºС | V | 12 |
| 10. | Temperature measuring range | ºС | from -40 to +120 |
| 11. | Displacement voltage nominal temperature coefficient | mV/ºС | 20 |
| 12. | Temperature measurement error, max | ºС | ±4 |
| 13. | IP degree of protection according to GOST 14254-96 | - | IP68 |
| 14. | EX-rating | - | 0ExiaIICT4 Х |
| 15. | Operating temperature range | оС | from -55 to +125 |
| 16. | Dimensions (hexagon×height), max | mm | 25 x 58 |
| 17. | Weight, max | g | 100 |
