Certificate ISO 9001

Vibration velocity sensors with current output DVA121.342 and DVA121.352

Vibration velocity sensors with current output DVA121.342 and DVA121.352

Designed to measure the root mean square (RMS) value of vibration velocity in emergency protection systems (EPS);

Consist of a sealed housing, which is a piezoelectric acceleration sensor and conversion board;

Easily replace imported analogues;

Thanks to the version with connection terminal block inside the case (DVA121.352), the incoming cable is quickly and conveniently mounted;

For DVA121.352 - order available cable glands 3 types or nut;

Type of output signal – 4...20 mA



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technical characteristics

Metrological parameters

  • Dynamic range of acceleration, m/s2
    not more than 400
  • Measuring range of RMS vibration velocity, mm/s
    0...20
    0...25
    0...25,4
    0...30
    0...10*
    0...12,7*
    0...40*
    0...50*
    0...50,8*
    0...60*
    0...80*
    0…100*
    *on special order
  • Operating frequency range, Hz
    2-1000
    5-1000
    10-1000
  • Electrical insulation resistance between the vibration transducer circuit and the shell, MOm, not less than
    40 (for 0Ex ia llC T5...T6 Ga X)
    1 (for PO Ex ia l Ma X)

Interface

  • Output signal type
    "current loop" 4...20 mA
  • Supply voltage range, V
    10...24
  • The polarity of the connection of the vibration transducer
    arbitrary

Explosion protection

  • Kind of intrinsically
    safe electrical circuit
  • Marking
    0Ex ia llC T5...T6 Ga X / PO Ex ia l Ma X
  • Connection
    via TIK-PLC 112 controller
    via safety barrier

Construction parameters

  • Execution
    with connector 2РМГ housing (DVA121.342)
    connection to the terminal block inside the housing (DVA121.352) 
  • Overall dimensions, mm
    Ø26,5х80 (DVA121.342)
    47x87 (DVA121.352)

  • Weight, kg, not more than
    0,24
  • Mounting type
    stud M6x1 (M8x1/M10x1/M12x1),
    M10x1.25, 1/4" NTP, 1/2" NTP, 3/4" NTP,
    1/4" 28 UNF, 3/8"-16 UNC 
  • Type of protection
    IP 65

Operational parameters

  • Operating temperature range, ºС
    -40...+80 (climatic version H, for 0Ex ia llC T5...T6 Ga X)
    -60...+80 (climatic version X, for 0Ex ia llC T5...T6 Ga X)
    -40...+80 (for PO Ex ia l Ma X)

Parameters of reliability and manufacturer's warranty

  • Mean time between failures, hours, not less than
    40 000
  • Warranty period, months
    18
  • Service life, years, not less than
    10
  • Calibration interval
    2 years

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