PCB-640B71

PCB-640B71

  • Vibration transmitter with current output corresponding to 
    the peak value of the vibration velocity,
  • Measuring range 0 ... 25.4 mm / s,
  • Output range 4 ... 20 mA,
  • Frequency range 3 ... 1000 Hz,
  • Lift terminals

basic data
measuring range0.0 ... 1 in / s pk0.0 ... 25.4 mm / spk[1]
output range4 ... 20 mA
Frequency range (± 3 dB)180 ... 60,000 cpm3 ... 1000 Hz[2] [3]
Broadband resolution0.005 in / s pk0.13 mm / s pk[4]
linearity error± 1%
Operating conditions
temperature range-40 ... 185 ° F-40 ... 85 ° C
Technical characteristics
supply voltage12 ... 30 V DC
Settling time (on the range within ± 2% of full scale)<15 s
Electrical insulation (housing)> 100 M
physical properties
Size - Hexagon1.375 in34.93 mm
Size - Height3.7 in94 mm
Dimensions19.5 oz553 grams
mounting thread1/4 "NPTNo metric equivalent
sensor elementceramics
Geometry of the sensor elementshear principle
housing materialstainless steel
electrical connectionRemovable terminals
port locationAbove
Pin assignment (terminal 1)Output signal 4 ... 20 mA positive
Pin assignment (terminal 2)Output signal 4 ... 20 mA negative
Connection wire cross-section12 ... 24 AWG0.2 ... 3.0 mm²
Hints
[1]Conversion factor 1 in / sec = 0.0254 m / sec.
[2]At frequencies below 5 Hz, the output signal varies.
[3]1 Hz = 60 cpm ( "Cycles Per Minute": revolutions per minute).
[4]typically,
[5]Details: see PCB Declaration of Conformance PS039
included supply
ICS-4Frequency response for uniaxial transducers of 0 cpm (0 Hz) up to the upper 10% -frequency for vibration transmitter-1
(RV) raw signal output - 100 mV / g (± 20%)
electrical connectionRemovable terminals
Pin assignment (terminal 1)Output signal 4 ... 20 mA positive
Pin assignment (terminal 2)Output signal 4 ... 20 mA negative
Pin assignment (terminal 3)raw signal positive
Pin assignment (terminal 4)raw signal negative

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