Robertshaw Vibration Switch 571A-A

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Robertshaw Vibration Switch 571A-A
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Robertshaw Vibration Switch 571A-A


Model 571A Vibration Transmitter

Intrinsically Safe, Loop-Powered, Stud Mounted

Robert's Model 571A

Robertshaw's model 571A is a loop powered, (14 - 32 VDC) IS vibration transmitter that provides a 4-20 mADC output proportionate to vibration.

The transmitter is available with a variety of acceleration and velocity ranges. This rugged (316L Stainless Steel, NEMA 4X, IP68) compact unit provides continuous monitoring of machine vibration for trending, alarm and/or shutdown when used with a PLC, computer, DCS, data logger or current relays. When used with an approved barrier the transmitter is intrinsically safe for use in hazardous locations. Without a barrier the transmitter is rated non-incendive.

Installation is simple and no calibration is required. A 1/4-28 tapped hole and a 1/4-28 stud is provided for mounting. The unit has a 2 pin connector and mates with a standard MIL-C-5015 2 socket connector with splashproof boot for a weatherproof, splash-proof connection. Optional cable assemblies are available in lengths of 16, 32, 64 and 112 feet.

Features & Benefits

  • Two wire loop powered (12 - 36 VDC)
  • 4 - 20 mADC output (isolated)
  • Compact design, 1.12 diameter, 2.80 inches height
  • Corrosion resistant (316L Stainless Steel
  • NEMA 4X, IP68, hermetically sealed enclosure
  • ESD and EMI protection
  • Overload protection
  • Reverse wiring protection
  • Available for either acceleration or velocity measurement
  • CE Certified
  • No Trim Pots Required
571A - A Acceleration, 0 - 5 G peak
571A - B Acceleration, 0 - 10 G peak
571A - C Acceleration, 0 - 20 G peak
571A - D Velocity, 0 - 0.5 IPS peak
571A - E Velocity, 0 - 1 IPS peak
571A - F Velocity, 0 - 2 IPS peak
Accessory Items 
086568A0016 - Standard IP66 Cable 2 conductor shielded MIL-C-5015 2 socket splash-proof boot.
086568A0032 - Standard IP66 Cable except 32 foot
086568A0064 - Standard IP66 Cable except 64 foot
086568A0112 - Standard IP66 Cable except 112 foot
435KB311 - Mounting stud for 1/4-28 tapped hole (supplied with transmitter)
435KB311-01 - Mounting stud for 3/8-24 tapped hole
435KB311-02 - Mounting stud for M8 X 1.25-6G tapped hole
435KB311-03 - Mounting stud for M6 X 1.00-6G tapped hole
435KB311-06 - Spot face tool, ∅1.25, with pilot drill for 1/4-28 tapped hole. Drill depth is adjustable.
Please see data sheet for other accessories
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