Robertshaw 571A Product Specification

Avoid Catastrophic Failure
Protect your rotating
machinery, including pumps, motors, fans,
blowers, gear boxes, compressors, turbines
and other machinery from excessive vibration.
Vibration monitoring will alert you of
increasing machine
preventative maintenance can be scheduled
before catastrophic failures occur.
General Description
Robertshaw's model 571A is a loop powered
(14 – 30 VDC) 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.
transmitter is rated non-incendive.
Installation is simple and no calibration is
required. A 1/4-28 stud is provided for
mounting in a 1/4-28 tapped hole. The unit
has a 2 pin connector and mates with a
standard MIL-C-5015 2 socket connector with
splash-proof boot for a weatherproof, splash-
proof connection. Optional cable assemblies
are available in lengths of 16, 32, 64 and 112
feet.
or reciprocating
vibration levels so
Without a barrier the
Sales Manual Section 140
Product Specification Model 571A
Intrinsically Safe
Loop Powered Stud Mount
Vibration Transmitter
Cable Sold Separately
Features and Benefits:
• Two wire loop powered (14 – 30 VDC)
• 4 – 20 mADC output (isolated)
• Compact design, 1.12" diameter, 2.80"
height
• Corrosion resistant (316L Stainless
Steel)
• Certified Intrinsically Safe (with
barrier)
• Certified Non-Incendive (Division 2)
in the USA & Canada (without
barrier)
• NEMA 4X, IP68, hermetically sealed
enclosure
• ESD and EMI protection
• Overload protection
• Reverse wiring protection
• Available for either acceleration or
velocity measurement
• CE & ATEX Certified
• No Trim Pots required
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