Model : 640B11 | 4-20 mA Output Velocity Sensor

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Lead Time for 1-5 is 8 Wks
Lead Time for 0-0 is 0 Wks
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Industrial vibration sensor, 4 to 20 mA output, 0 to 1 in/sec pk, 3 to 1k Hz, top exit, 10-ft integral cable

  • Measurement Range: 0.0 to 1 in/sec pk (0.0 to 25.4 mm/s pk)
  • Output: 4-20 mA
  • Frequency Range: (±10%)180 to 60000 cpm (3 to 1 kHz)
  • Sensing Element: Ceramic
  • Weight: 4.7 oz (131 gm)
Additional Configurations:
English: SI:
Performance
Measurement Range 0.0 to 1 in/sec pk 0.0 to 25.4 mm/s pk [3]
Output 4-20 mA 4-20 mA
Frequency Range (±10 %) 180 to 60000 cpm 3 to 1 kHz [1] [2]
Broadband Resolution 0.005 in/sec pk 0.13 mm/s pk [4]
Non-Linearity ±1 % ±1 %
Environmental
Temperature Range -40 to 185 °F -40 to 85 °C
Electrical
Excitation Voltage 12 to 30 VDC 12 to 30 VDC
Settling Time (within 2% of value) <15 sec <15 sec
Electrical Isolation (Case) >100000000 >100000000
Physical
Size - Hex 1.0 in 25.4 mm
Size - Height 4.2 in 107 mm
Weight (without cable) 4.7 oz 131 gm
Mounting Thread 1/4-28 UNF No Metric Equivalent
Mounting Torque 3 to 5 ft-lb 4 to 7 Nm
Sensing Element Ceramic Ceramic
Sensing Geometry Shear Shear
Housing Material Stainless Steel Stainless Steel
Sealing Welded Hermetic Welded Hermetic
Electrical Connector Integral Cable Integral Cable
Electrical Connection Position Top Top
Electrical Connections (Red) 4-20 mA Pos (+) 4-20 mA Pos (+)
Electrical Connections (Blue) 4-20 mA Neg (-) 4-20 mA Neg (-)
Cable Length 10 ft 3.0 m
Cable Type Polyurethane Polyurethane
* All specifications are at room temperature unless otherwise specified
.


Specification Notes


[1] 1Hz = 60 cpm (cycles per minute).
[2] Current will fluctuate at frequencies below 5 Hz.
[3] Conversion Factor 1 in/sec = 0.0254 m/sec.
[4] Typical.
[5] See PCB Declaration of Conformance PS039 or PS053 for details.


Accessories


Supplied
081A40 Mounting stud, 1/4-28 x 0.438" long stainless steel screw with hex socket and brass tip 1
ICS-4 NIST-traceable single axis amplitude response cal from 0 to +10% freq. (for 4 to 20 mA sensors) 1


Optional Versions


( EX ) Hazardous Area Approval- contact factory for specific approvals
English SI
Hazardous Area Approval EEx nL IIC T4, -40°C≤Ta≤80°C, II 3 G
Hazardous Area Approval DIV I, CL I, II, III, GRPS A-G, Exia, AExia, IIC T4
Hazardous Area Approval DIV II, CL I, GRPS A-D, ExnL, AExnA, IIC T4
Hazardous Area Approval EEx ia IIC T4, -40°C≤Ta≤80°C, II 1 G


( M ) Metric Mount
Accessories:
Supplied M081A61 Mounting Stud 1


( RV ) Buffered Analog Signal Output - 100 mV/g (±20%)
English SI
Electrical Connector Integral Cable
Electrical Connections 4-20 mA Pos (+)
Electrical Connections 4-20 mA Neg (-)
Electrical Connections Signal Output Pos
Electrical Connections Signal Output Neg