intrinsically-safe vibration sensor, 4 to 20 ma output, 0 to 1.0 in/sec pk, 3 to 1k hz, top exit, terminal block with conduit elbow

4-20 mA VELOCITY SENSOR

Model EX640B71

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  • CE
  • EX
  • IP

Intrinsically-safe vibration sensor, 4 to 20 mA output, 0 to 1.0 in/sec pk, 3 to 1k Hz, top exit, terminal block with conduit elbow

  • Measurement Range: 0.0 to 1 in/sec pk (0.0 to 25.4 mm/s pk)
  • Output: 4-20 mA
  • Frequency Range: (±3dB)180 to 60000 cpm (3 to 1000 Hz)
  • Sensing Element: Ceramic
  • Weight: 1.2 lb (544 gm)

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.

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 (±3 dB) 180 to 60000 cpm 3 to 1000 Hz [1] [2]
Broadband Resolution 0.005 in/sec pk 0.13 mm/s pk [4]
Non-Linearity ±1 % ±1 %
Environmental
Temperature Range -40 to 176 °F -40 to 80 °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 Ohm >100000000 Ohm
Physical
Size - Hex 3.85 in 98 mm
Size - Height 5.52 in 140 mm
Weight 1.2 lb 544 gm
Mounting Thread 1/4 NPT No Metric Equivalent
Sensing Element Ceramic Ceramic
Sensing Geometry Shear Shear
Housing Material Stainless Steel Stainless Steel
Electrical Connector Removable Screw Terminals Removable Screw Terminals
Electrical Connection Position Top Top
Electrical Connections (Tab 1) 4-20 mA Pos (+) 4-20 mA Pos (+)
Electrical Connections (Tab 2) 4-20 mA Neg (-) 4-20 mA Neg (-)
Screw Terminal Wire Size 12-24 AWG 3.0 - .2mm²

* All specifications are at room temperature unless otherwise specified.

Accessories
Supplied
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 Ex ia IIC T4, -40°C≤Ta≤80°C, II 1 G
Hazardous Area Approval Ex nA 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, ExnA, AExnA, IIC T4

(RV) Buffered Analog Signal Output - 100 mV/g (±20%)

English SI
Electrical Connector Removable Screw Terminals
Electrical Connections 4-20 mA Pos (+)
Electrical Connections 4-20 mA Neg (-)
Electrical Connections Signal Output Pos
Electrical Connections Signal Output Neg