Robertshaw 570B, 571A Product Specification

Sales Manual Section 140

Product Specification Model 570B

Loop Powered Stud Mount

Avoid Catastrophic Failure

Protect your rotating or reciprocating
machinery, including pumps, motors, fans,
blowers, gear boxes, compressors, turbines
and other machinery from excessive vibration.
Vibration monitoring will alert you of
increasing machine vibration levels so
preventative maintenance can be scheduled
before catastrophic failures occur.

General Description

Robertshaw’s model 570B is a loop powered
(12 – 36 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.

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.

1

Vibration Transmitter

Cable Sold Separately

Features and Benefits:

• Two wire loop powered (12 – 36 VDC)

• 4 – 20 mADC output (isolated)

• Compact design, 1.12” diameter, 2.80”

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

ORDERING INFORMATION

AND MODEL NUMBERS

Key Model Number

DESIG. DESCRIPTION

570B 2-wire, 12-36 VDC Stud Mount

Vibration transmitter. 4-20 mADC
output.

Table 1 - Measurement

DESIG. DESCRIPTION

A Acceleration, 0 - 5 G peak
B Acceleration, 0 - 10 G peak
C Acceleration, 0 - 20 G peak
D Velocity, 0 - 0.5 IPS peak
E Velocity, 0 - 1 IPS peak

F Velocity, 0 - 2 IPS peak

PART NO. DESCRIPTION

086568A0016 Standard Cable - 16 foot, 2 conductor

086568A0032 Standard Cable - same as above

086568A0064 Standard Cable - same as above

086568A0112 Standard Cable - same as above

086568B0016 IP68 Cable - 16 foot, 2 conductor

086568B0032 IP68 Cable - same as above except

086568B0064 IP68 Cable - same as above except

086568B0112 IP68 Cable - same as above except

* 16 foot standard cable is a stock item.

For other cables allow 6-8 weeks delivery.
Cable accessory must be ordered separately.

Accessory Items*

shielded cable, MIL-C-5015 2 socket
connector with splash-proof boot.

except 32 foot

except 64 foot

except 112 foot

shielded cable, MIL-C-5015 2 socket
connector with splash-proof boot

32 foot

64 foot

112 foot

SPECIFICATIONS

DYNAMIC

Output (± 5% of span) ……………..……....… 4 – 20 mADC

Vibration Range ………………………..…..…… See Table 1
Frequency Response-Acceleration:

- 3 dB …..………………….….…... 2 Hz – 2 kHz
Frequency Response-Velocity:

- 3 dB …..…………………..…… 2 Hz – 2.5 kHz

Repeatability ………………………………..………..... ± 2%

Resonant Frequency, mounted, nominal ………..…… 18 kHz
Transverse Sensitivity, max. …………..…………..…….. 5%

ELECTRICAL

Power Requirements (Two wire loop power):

Voltage Source ……………..... 12 VDC – 36 VDC

Loop Resistance ……….…………………….……. see page 4
Grounding ………….………………………….. case isolated,
internally shielded
Protection ………………….……… reverse wiring, overload,
ESD & EMI

ENVIRONMENTAL

Temperature Range ….…….… -40° to 85° C (-40° to 185° F)
Vibration Limit …………………………………… 250 g peak
Shock Limit ………………………………….…. 2,500 g peak
Electromagnetic Sensitivity, equiv. g …………... 10 µg/gauss
Sealing ………………………….. hermetic, NEMA 4X, IP68

PHYSICAL

Sensing Element Design …..…………...… PZT ceramic/shear
Weight …………………………………………….. 162 grams

Case Material ………………………….... 316L stainless steel

Case Rating ………………………………... IP68, NEMA 4X
Mounting ……………………………..… 1/4 – 28 tapped hole
Supplied Accessories …………………. 1/4-28 mounting stud

Output Connector ………………….….... MIL-C-5015, 2-pin

Pin A ……………………………………. plus (+)
Pin B ……………………………………. minus (-)
Cabling ……………………………… two conductor shielded
(see Accessory Items Table)
Torque Limit ………………………………... 30 in. lbs. Max.
Warranty ………………………………………………. 1 year

CERTIFICATIONS

CE

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