The sensor is used in vibration monitoring and protection systems. The sensor is designed for employment in explosion proof zones of the premises and external installations  where flammable vapor and gas-air-mixtures, of the category IIA, group T1-T5 may be formed.

The sensor is used for RMS Velocity (mm/s) / vibration acceleration (m/s2) measurements in one axis.

General data

  • Vibration RMS Velocity (mm/s) measurement;
  • Vibration Acceleration (m/s2) measurement;
  • Signal decomposition using the FFT method;
  • Data exchange due to interface RS-485 (Modbus RTU);
  • Current output signal 4-20 mA proportional to RMS Velocity;
  • Current output signal 10 ± 10 mA (non-standardized) proportional to peak Acceleration;
  • Field programmable bode rate, address (RS-485);
  • Remote sensor calibration.

Technical specifications

RMS Velocity measurement range (8000-coefficient, mm/s2, f – frequency, 1/s) 0,1 to 6300*f-1, mm/s
Acceleration measurement range 0,008 to 45 m/s2
Frequency range 10 to 1000 Hz
Output current signal RMS Velocity 4 - 20 mA
Output current signal Acceleration 10 ± 10 mA (non-standardized)

Essential relative error/measurement tolerance, RMS Velocity:

0,1 to 0,8 mm/s

0,8 to 6300*f-1, mm/s

 

10 %

5 %

Essential relative error/measurement tolerance, Acceleration:

0,008 to 0,04 m/s2

0,04 to 45 m/s2

 

10 %

5 %
Transverse Sensivity 5 %
Noise 0,03 mm/s max.
Power supply 10 ÷ 24 VDC
Operating temperature range -60 ÷ + 85 °C
Update time 1 s
Settling time 10 s max
Case protection class IP67
Explosion proof marking 0ExiaIIAT5X
Weight (with cable 3.5 m) 0,3 kg

Design

  • Housing material - steel;
  • Explosion protection type – Intrinsic safety "i".

Sensor versions

  • IVD-4 – digital (RS-485) output;
  • IVD-4V - digital (RS-485)/current (RMS Velocity, 4-20 mA) output;
  • IVD-4A - digital (RS-485)/current (Acceleration, 10 ± 10 mA) output;

Basic connections

Modifications

IVD-4X

X – Output signal type:

                 “-” – digital (RS-485);

                 V - digital (RS-485)/current (RMS Velocity, 4-20 mA) output;

                 A - digital (RS-485)/current (Acceleration, 10 ± 10 mA) output.

IVD-4-X-Y (Extension cable)

X – Output signal type:

                 V - digital (RS-485)/current (RMS Velocity, 4-20 mA) output;

                 A - digital (RS-485)/current (Acceleration, 10 ± 10 mA) output.

Y – Cable (with protection metal hose) length.

 
 
Система Orphus