Click here for the 4-20 mA Sensors Overview Brochure "Continuous Monitoring for Critical Machinery"

Series 640Bx0 

Spec Sheet | Request Info 

• Replaces model(s) 640Ax0

• 0 to 0.5 in/sec pk input velocity range 

• 4 to 20 mA current output 

• 0.005 in/sec pk resolution 

• 180 to 60,000 cpm (3 to 1 kHz) frequency range [±1%] 

• 2-pin connector and two integral cable styles 

Series 640Bx1 

Spec Sheet | Request Info 

• Replaces model(s) 640Ax1

• 0 to 1.0 in/sec pk input velocity range 

• 4 to 20 mA current output 

• 0.005 in/sec pk resolution 

• 180 to 60,000 cpm (3 to 1 kHz) frequency range [±1%] 

• 2-pin connector and two integral cable styles 

 Series 640Bx2 

Spec Sheet | Request Info 

• Replaces model(s) 640Ax2

• 0 to 2.0 in/sec pk input velocity range 

• 4 to 20 mA current output 

• 0.005 in/sec pk resolution 

• 180 to 60,000 cpm (3 to 1 kHz) frequency range [±1%] 

• 2-pin connector and two integral cable styles 

Series 641Ax0 

Request Info 

• 0 to 0.5 in/sec rms input velocity range 

• 4 to 20 mA current output 

• 0.005 in/sec rms resolution 

• 600 to 60k cpm (10 to 1000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

 Series 641Ax1 

PDF Datasheet | Request Info 

• 0 to 1.0 in/sec rms input velocity range 

• 4 to 20 mA current output 

• 0.005 in/sec rms resolution 

• 600 to 60k cpm (10 to 1000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

 Series 641Ax2 

PDF Datasheet | Request Info 

• 0 to 2.0 in/sec rms input velocity range 

• 4 to 20 mA current output 

• 0.01 in/sec rms resolution 

• 600 to 60k cpm (10 to 1000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

 Series 642Ax1

PDF Datasheet | Request Info 

• 360-degree swivel mount

• 4-20 mA current output

• –40F to +185F (-40C to +85C) temperature range

• Peak velocity, rms velocity, and rms acceleration versions available

• Options include dual-output versions, and built-in temperature sensor

 Series 645Ax0 

PDF Datasheet | Request Info 

• 0 to 5.0 g rms input acceleration range 

• 4 to 20 mA current output 

• 0.025 g rms resolution 

• 180 to 60k cpm (3 to 1000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

 Series 645Ax1 

PDF Datasheet | Request Info 

• 0 to 5.0 g rms input acceleration range 

• 4 to 20 mA current output 

• 0.025 g rms resolution 

• 180 to 300k cpm (3 to 5000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

 Series 645Ax2 

PDF Datasheet | Request Info 

• 0 to 5.0 g rms input acceleration range 

• 4 to 20 mA current output 

• 0.025 g rms resolution 

• 180 to 600k cpm (3 to 10k Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

 Series 646Ax0 

PDF Datasheet | Request Info 

• 0 to 10.0 g rms input acceleration range 

• 4 to 20 mA current output 

• 0.05 g rms resolution 

• 180 to 60k cpm (3 to 1000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

Series 646Ax1 

PDF Datasheet | Request Info 

• 0 to 10.0 g rms input acceleration range 

• 4 to 20 mA current output 

• 0.05 g rms resolution 

• 180 to 300k cpm (3 to 5000 Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles 

Series 646Ax2 

PDF Datasheet | Request Info 

• 0 to 10.0 g rms input acceleration range 

• 4 to 20 mA current output 

• 0.05 g rms resolution 

• 180 to 600k cpm (3 to 10k Hz) frequency range [±10%] 

• 2-pin connector and two integral cable styles