3500/40M Proximitor Monitor
Datasheet

Bently Nevada Machinery Condition Monitoring141535 Rev. M

Description
The 3500/40M Proximitor Monitor is a four-channel monitor
that accepts input from Bently Nevada proximity transducers,
conditions the signal to provide various vibration andposition measurements, and compares the conditioned
signals with user-programmable alarms. The user canprogram each channel of the 3500/40M with the 3500 Rack
Configuration Software to perform any of the following
functions:llRadialvibration
Thrustpositionll

Eccentricity

lREBAM

Differential
expansion

The primary purpose of the 3500/40M Proximitor Monitor is toprovide the following:llMachinery protection by continuously comparing
monitored parameters against configured alarm
setpoints to drive alarms
Essential machine information for both operations andmaintenance personnel

Each channel, depending on configuration, typicallyconditions its input signal to generate various parameters
called static values. You can configure alert setpoints foreach active static value and danger setpoints for any two of
the active static values.
You program the monitor channels in pairs. The
monitor channels can perform up to 2 of thesefunctions at a time. Channels 1 and 2 can perform
one function, while channels 3 and 4 perform
another (or the same) function.

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Front Panel LEDs

Specifications

The front of each monitor has
one coaxial connector for each
BufferedTransducer channel.
Outputs
Each connector is short-circuit

InputsSignal

Accepts from 1 to 4 proximity
transducer signalsPowerconsumption

7.7 watts, typical

protected.

Output550 Ω
Impedance

Input ImpedanceStandard I/O10 kΩ(Proximitor and acceleration
inputsTMR I/O

The effective impedance of
three bussed TMR I/O
channels wired in parallel to
one transducer is50 kΩTransducer
Power-24 Vdc
SupplySignal Conditioning
Specified at +25 ºC (+77 ºF) unlessotherwise noted.

Radial Vibration

Sensitivity
RadialVibration

3.94 mV/μm (100 mV/mil) or
7.87 mV/μm (200 mV/mil)Thrust3.94 mV/μm (100 mV/mil) or
7.87 mV/μm (200 mV/mil)Direct filter

Eccentricity

3.94 mV/μm (100 mV/mil) or
7.87 mV/μm (200 mV/mil)User-programmableSingle-pole
4 Hz to 4000 Hz or
1 Hz to 600 Hz

Gap filter-3 dB at 0.09 Hz

DifferentialExpansion

0.394 mV/μm (10 mV/mil) or
0.787 mV/μm (20 mV/mil)

REBAM

40 mV/μm (1000 mV/mil) or
80 mV/μm (2000 mV/mil)

Not 1X filter

60 cpm to 15.8 times running
speed
Constant Q notch filter
Minimum rejection in
stopband of -34.9 dB

Smax

0.125 to 15.8 times runningspeed

1X and 2X
vector filter

Constant Q Filter
Minimum rejection in
stopband of -57.7 dB

Frequency Response

Outputs
Front Panel LEDs
OK LED

Indicates when the 3500/40M SILProximitor is operating properly.

TX/RX LED

Indicates when the 3500/40M SIL
Proximitor is communicatingwith other modules in the 3500rack.

Bypass LED

Indicates when the 3500/40M SIL
Proximitor is in Bypass Mode.

1X and 2X Vector, Not 1X, and Smax
parameters are valid for machine
speeds of 60 cpm to 60,000 cpm.

2/11

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Frequency Response

Accuracy

Direct and Gap

Exclusive of filtering
Within ±0.33% of full-scale
typical±1% maximum

Element

Within ±0.33% of full-scale
typical±1% maximum

1X and 2X
Smax

Within ±5% maximumNot 1X±3% for machine speeds lessthan 30,000 cpm±8.5% for machine speeds
greater than 30,000 cpm

DirectDirect filter-3 dB at 1.2 Hz

Gap filter-3 dB at 0.41 Hz

Programmable from 0.002 to
1.0 HzSelection is determined by
the Rotor filter.

1X vector filter

The range of shaft speeds forwhich the value is valid
depends on the nominal
shaft speed for which thechannel is configured.

Table 1: Relationship Between Nominal Shaft
Speed and the Valid Speed Range

Eccentricity
Within ±0.33% of full-scale
typical±1% maximum

Nominal Shaft
Speed (Hz)Frequency Response
Direct filter-3 dB at 15.6 Hz

Gap filter-3 dB at 0.41 Hz

REBAM

Valid Speed Range (Hz)

10 to <1260.071 to 160

126 to <2520.133 to 330

252 to <5040.25 to 660

504 to 584

0.50 to 750

If a multi-event gear or speed wheel
generates the speed input, the upper
limitation of the resultant input signal
is approximately 20 KHz.

Frequency Response
SpikeSelection is determined by
Spike and Rotor filters.

GapFrequency Response

Accuracy

Programmable from 3.906 to14.2 Hz

Within ±0.33% of full-scale
typical±1% maximum

Accuracy

High-pass corner is 0.8x
BPFO.
Low-pass corner is 2.2x BPFO.
User programmable from0.108 to 2221 Hz

Rotor

Thrust and Differential Expansion

User-programmable forBPFO
ranging from 0.139 to 3836 Hz

User-programmablefrom 0.152 to 8678 Hz

3/11

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Accuracy

Filter Quality
Spike highpass

6-pole Elliptic(155 dB per decade,minimum)
Corner frequency is -0.1 dB.

Elementbandpass

8-pole Butterworth(155 dB per decademinimum)

Corner frequency is -0.1 dB.
1-pole Butterworth(18 dB per decade,minimum)
Corner frequency is -3 dB.

Gap low-pass

Corner is -0.3 dB maximum.
1-pole Butterworth(18 dB per decade,minimum)
Corner frequency is -3 dB.
Constant Q of 16.67

1X amplitude

Stopband frequencies are0.91 and 1.09 times therunning speed.
Stopband attenuation is -51
dB minimum.

Accuracy
Within ±0.33% of full scale
typicalAmplitude

Channels
enabledCertain configurations allow
the user to enable only one
channel of a channel pair.

Initial condition Nominal filter set used

6-pole Elliptic(155 dB per decade,Rotor low-pass minimum)

Spike, direct
low-pass

3 degrees error, maximum

Filter Tracking / Stepping (Requires a valid
speed signal)

Corner frequency is -3 dB.

Rotor, direct
high-pass

Phase±1% maximum when input
signal is at the center
frequency of the measured
value's passband

4/11

Switch fromnominal tolower filter set

Current shaft speed ≤ 0.9 x(nominal shaft speed)

Switch fromlower tonominal filter
set

Current shaft speed ≥ 0.95 x(nominal shaft speed)

Switch fromnominal tohigher filter set

Current shaft speed ≥ 1.1 x(nominal shaft speed)

Switch fromhigher tonominal filter
set

Current shaft speed ≤ 1.05 x(Nominal Shaft Speed)

Shaft speed
error condition

Nominal filter set used

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Barrier Parameters

Environmental Limits

The following parameters apply to CSA-NRTL/Cand ATEX / IECEx approvals.

When used withInternal/External Termination
I/O Module:
OperatingTemperature

Proximitor Barrier-30°C to +65°C (-22°F to+150°F)

Vmax (PWR) = 26.25V(SIG) = 13.65 V

When used with InternalBarrier I/O Module (InternalTermination):

Circuit Parameters

Rmin (PWR) = 237.6 Ω(SIG) = 4985 Ω

0°C to +65°C (32°F to +150°F)
Storage
Temperature-40°C to +85°C (-40°F to+185°F).

Humidity

95%, noncondensing

ChannelParameters(entity)

Physical
241.3 mm x 24.4 mm x241.8 mm
(9.50 in x 0.96 in x 9.52 in)Weight0.91 kg (2.0 lb)
I/O Modules (non-barrier)Dimensions(Height x Width xDepth)

241.3 mm x 24.4 mm x 99.1
mm
(9.50 in x 0.96 in x 3.90 in)

Weight0.20 kg (0.44 lb)

Alarm
Setpoints

I/O Modules (barrier)Dimensions(Height x Width xDepth)

241.3 mm x 24.4 mm x 163.1mm(9.50 in x 0.96 in x 6.42 in)Weight0.46 kg (1.01 lb)

Accuracy ofalarm
setpoints

Rack Space Requirements
Monitor

1 full-height front slot

I/O Modules

1 full-height rear slot

Vmax = 27.45 V
Imax = 113.24 mA
Rmin (PWR) = 237.6 Ω(SIG) = 4985 Ω

AlarmsMonitor Module (Main Board)Dimensions(Height x Width xDepth)

Imax (PWR) = 110.48 mA(SIG) = 2.74mA

Use Rack Configuration
Software to set alert levels foreach value measured by themonitor and Danger
setpoints for any two of thevalues measured by themonitor.
Alarms are adjustable from 0to 100% of full-scale for eachmeasured value. However,when the full-scale range
exceeds the range of thetransducer, the range of thetransducer will limit thesetpoint.
Within 0.13% of the desiredvalue

Alarm Time Delays
You can program alarm delays using
Rack Configuration Software.

5/11

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Radial vibration, thrust, differential
expansion and eccentricity
Alert

From one to 60 seconds inone second intervals

Danger

0.1 seconds or from one to 60
seconds in 0.5 second
intervals
REBAM

Alert

From the calculated
minimum value to 400
seconds in one second
intervals

DangerFrom the calculated
minimum value to 400
seconds in 0.5 second
intervals

Static Values
Static values are measurements used tomonitor the machine. The 3500/40M Proximitor
Monitor returns the following static values:

RadialVibration

Direct, Gap, 1X Amplitude, 1X
Phase Lag, 2X Amplitude, 2X
Phase Lag, Not 1X Amplitude
andSmax Amplitude

Thrust Position

Direct, Gap

Differential
Expansion

Direct, Gap

Eccentricity

Peak-to-peak, Gap,
Direct Minimum, Direct
Maximum

REBAM

Spike, Element, Rotor, Direct,Gap,
1X Amplitude, 1X Phase Lag

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3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Hazardous Area Approvals

Compliance andCertifications

For the detailed listing of country and productspecific approvals, refer to the Approvals Quick
Reference Guide (108M1756) available from
Bently.com.

FCC

cNRTLusThis device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions:llWhen used with I/Omodule ordering
options without
internal barriersThis device may not cause harmfulinterference.
This device must accept any
interference received, includinginterference that may cause
undesired operation.

Class I, Zone 2: AEx/Ex nA nC ic
IIC T4 Gc;
Class I, Zone 2: AEx/Ex ec nC ic
IIC T4 Gc;
Class I, Division 2, Groups A, B, C,and D;
T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
149243 or 149244.

EMC

When used with I/Omodule ordering
options withinternal barriers

European Community Directive:
EMC Directive 2014/30/EU
Standards:
EN 61000-6-2 Immunity for
Industrial Environments
EN 61000-6-4 Emissions for
Industrial Environments

Class I, Zone 2: AEx/Ex nA nC ic[ia Ga] IIC T4 Gc;
Class I, Zone 2: AEx/Ex ec nC ic[ia Ga] IIC T4 Gc;
Class I, Division 2, Groups A, B, C,and D (W/ IS Output for Division1)
T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
138547.

ATEX/IECEx

Electrical Safety
European Community Directive:

When used with I/Omodule ordering
options without
internal barriers

LV Directive 2014/35/EU
Standards:
EN 61010-1

II 3 GEx nA nC ic IIC T4 Gc;
Ex ec nC ic IIC T4 Gc;
T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
149243 or 149244.

RoHS
European Community Directive:

When used with I/Omodule ordering
options withinternal barriers

RoHS Directive 2011/65/EU

Maritime
ABS - Marine and Offshore Applications
DNV GL Rules for Classification – Ships,
Offshore Units, and High Speed and LightCraft

7/11

II 3(1) G
Ex nA nC ic [ia Ga] IIC T4 Gc;
Ex ec nC ic [ia Ga] IIC T4 Gc;
T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
138547.

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Reference Guide (108M1756) available from
Bently.com.

Ordering
Considerations

Proximitor Monitor
3500/40M - AA-BB

General

A: I/O Module TypeThe 3500/40M Module requires the following (orlater) firmware, and software revisions:01

Proximitor I/O Module with Internal
Termination

02

Proximitor I/O Module with External
Terminations

03

Proximitor I/O Module with InternalBarriers and Internal Terminations

3500/01 Software – Version 2.50
3500/02 Software – Version 2.20
3500/03 Software – Version 1.21
When ordering I/O Modules with External
Terminations the External Termination Blocks
and Cable must be ordered separately for each
I/O Module.

B: Hazardous Area Approval Option

External Termination Blocks cannot be usedwith Internal Termination I/O Modules.
Bussed External Termination Blocks are to beused with TMR I/O Modules only.

00

None

01

cNRTLus (Class 1, Division 2)

02

ATEX / IECEx / CSA (Class 1, Zone 2)
Agency Approval Option B-02 is only
available with Ordering Option A-03

Internal Barrier I/O Modules

External Termination Blocks

Consult the 3500 Internal Barrier specification
sheet (document 141495) if the Internal Barrier
Option is selected.

REBAM
The REBAM channel type requires the following(or later) firmware, and software revisions:
3500/40M Module Firmware – Revision 2.1
3500/01 Software – Version 3.30
3500/02 Software – Version 2.40
3500/03 Software – Version 1.40
DM2000 Software - Version 3.40.
Requires the M version of the 3500 Proximitor
Monitor.

Ordering Information
For the detailed listing of country and productspecific approvals, refer to the Approvals Quick

8/11125808-01

Proximitor ET BlockEuro Style Connectors

128015-01

Proximitor ET Block
Terminal Strip Connectors

132242-01

Proximitor/ Seismic TMR ET
BlockEuro Style Connectors

132234-01

Proximitor/Seismic TMR ET
BlockTerminal Strip Connectors

3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Cables3500 Transducer XDCR signal to External
Termination (ET) Block Cable
129525 - AAAA-BB

00580434

Internal I/O Moduleconnector header, Eurostyle, 8-pin

00502133

Internal I/O Moduleconnector header, Eurostyle, 12-pin

166M4363

Connector header,push-in-spring type(alternative for PN00580441)

166M2389

Connector header,push-in-spring type(alternative for PN
00580434)

A: I/O Cable Length0005

5 feet 1.5 metres)

0007

7 feet(2.1 metres)0010

10 feet(3.0 metres)

0025

25 feet(7.6metres)0050

50 feet(15.2 metres)

0100

100 feet(30.5 metres

B: Assembly Instructions
01

Not assembled

02

AssembledSpares
176449-01

3500/40M ProximitorMonitor

125680-01

Proximitor I/O Modulewith Internal
Terminations

126615-01

Proximiotr I/O Modulewith Extrnal
Terminations

135489-04

Proximitor I/O Modulewith Internal Barriers
and Internal
Terminations

149716-01

TMR Proximitor I/O
Module with External
Terminations

1434883500/40M Monitor User
Guide

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3500/40M Proximitor Monitor
Datasheet141535 Rev. M

Graphs and Figures

1.
2.
3.
4.
5.
6.
7.
8.

Main Module Front View
Status LEDs
Buffered Transducer Outputs
I/O modules
Barrier I/O module, Internal Termination
I/O Module, Internal Termination
I/O Module, External Termination
I/O Module, External Termination

Figure 1: Assorted 3500/40M Proximitor Monitor Views

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3500/40M Proximitor Monitor
Datasheet141535 Rev. M

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Bently Nevada, M2, Proximitor and Orbit Logo are registered trademarks of Bently Nevada, a Baker Hughes business, inthe United States and other countries. The Baker Hughes logo is a trademark of Baker Hughes Company. All otherproduct and company names are trademarks of their respective holders. Use of the trademarks does not imply anyaffiliation with or endorsement by the respective holders.
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notice or obligation. Contact your Baker Hughes representative for the most current information.
The information contained in this document is the property of Baker Hughes and its affiliates; and is subject tochange without prior notice. It is being supplied as a service to our customers and may not be altered or its content
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1631 Bently Parkway South, Minden, Nevada USA 89423
Phone: 1.775.782.3611 (US) or Bently.com/support
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