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Model: TO640B31

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Model 640B31 w/ temp. output (TO) option, 4 to 20 mA signal for 0 to 1.0 in/sec pk and 4 to 20 mA signal for -40 to +257 °F, top exit, 4-pin bayonet conn.

  • Measurement Range: 0.0 to 1.0 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)

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 English:SI: 
Performance
Measurement Range (Vibration)0.0 to 1.0 in/sec pk0.0 to 25.4 mm/s pk[3] 
Measurement Range (Temperature)-40 to 257 °F-40 to 125 °C[5] 
Output4-20 mA4-20 mA 
Frequency Range (±10 %)180 to 60000 cpm3 to 1 kHz[1][2] 
Broadband Resolution0.005 in/sec pk0.13 mm/s pk[4] 
Non-Linearity1 %1 % 
Environmental
Temperature Range-40 to 185 °F-40 to 85 °C[5] 
Electrical
Excitation Voltage12 to 30 VDC12 to 30 VDC 
Load Resistance50 (Vs-12) ohms50 (Vs-12) ohms 
Settling Time<15 sec<15 sec 
Electrical Isolation (Case)>100000000 Ohm>100000000 Ohm 
Physical
Size - Hex1.00 in25.4 mm 
Size - Height2.60 in66.0 mm 
Weight4.7 oz131 gm 
Mounting Thread1/4-28 UNF1/4-28 UNF 
Mounting Torque3 to 5 ft-lb4 to 7 Nm 
Sensing ElementCeramicCeramic 
Sensing GeometryShearShear 
Housing MaterialStainless SteelStainless Steel 
SealingWelded HermeticWelded Hermetic 
Electrical Connector4-Pin Bayonet4-Pin Bayonet 
Electrical Connection PositionTopTop 
Electrical Connections (Pin A)Vibration, 4-20 mA Pos.Vibration, 4-20 mA Pos. 
Electrical Connections (Pin B)Vibration, 4-20 mA Neg.Vibration, 4-20 mA Neg. 
Electrical Connections (Pin C)Temperature, 4-20 mA Pos.Temperature, 4-20 mA Pos. 
Electrical Connections (Pin D)Temperature, 4-20 mA Neg.Temperature, 4-20 mA Neg. 

All specifications are at room temperature unless otherwise specified.


CE

Product 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 value.
[5] Vibration 4-20mA output accuracy is limited to 185°F (85°C)
[6] See PCB Declaration of Conformance PS039 for details.
Accessories:
Supplied
081A40Mounting Stud(1)
ICS-4NIST-traceable single-axis amplitude response calibration from 0 cpm (0 Hz) to upper 10% frequency for 4 - 20 mA output vibration sensor(1)
Optional Versions:
(M) Metric Mount
Accessories:
    M081A61Mounting Stud(1)