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Specifications and Ordering Information 

Part Number 141535-01 

Rev. E (10/08) 

 

Page 1 of 11 

3500/40M Proximitor® Monitor 

Bently Nevada™ Asset Condition Monitoring 

 
 
 

 

 

 
 
 
 

Description 

The 3500/40M Proximitor® Monitor is a 4-channel monitor that accepts input 
from Bently Nevada proximity transducers, conditions the signal to provide 
various vibration and position measurements, and compares the conditioned 
signals with user-programmable alarms. The user can program each channel of 
the 3500/40M with the 3500 Rack Configuration Software to perform any of the 
following functions:  
 

• 

Radial Vibration 

• 

Thrust Position 

• 

Differential Expansion 

• 

Eccentricity 

• 

REBAM® 

 

Note:

  

The monitor channels are programmed in pairs and can perform up to two of these 
functions at a time. Channels 1 and 2 can perform one function, while channels 3 and 4 
perform another (or the same) function.  

 
The primary purpose of the 3500/40M monitor is to provide:  

1.  Machinery protection by continuously comparing monitored parameters 

against configured alarm setpoints in order to drive alarms. 

2.  Essential machine information for both operations and maintenance 

personnel.  

 

Each channel, depending on configuration, typically conditions its input signal 
into various parameters called “static values”.  The user can configure alert 
setpoints for each active static value and Danger setpoints for any two of the 
active static values. 

 

 

 

 

Summary of Contents for 3500/40M

Page 1: ...hrust Position Differential Expansion Eccentricity REBAM Note The monitor channels are programmed in pairs and can perform up to two of these functions at a time Channels 1 and 2 can perform one function while channels 3 and 4 perform another or the same function The primary purpose of the 3500 40M monitor is to provide 1 Machinery protection by continuously comparing monitored parameters against ...

Page 2: ...V mil Outputs Front Panel LEDs OK LED Indicates when the 3500 40M is operating properly TX RX LED Indicates when the 3500 40M is communicating with other modules in the 3500 rack Bypass LED Indicates when the 3500 40M is in Bypass Mode Buffered Transducer Outputs The front of each monitor has one coaxial connector for each channel Each connector is short circuit protected Output Impedance 550 Ω Tr...

Page 3: ...esponse Direct filter 3 dB at 15 6 Hz Gap filter 3 dB at 0 41 Hz Accuracy Within 0 33 of full scale typical 1 maximum REBAM Frequency response Spike User programmable from 0 152 to 8678 Hz Element User programmable for BPFO ranging from 0 139 to 3836 Hz High pass corner is 0 8x BPFO Low pass corner is 2 2x BPFO Rotor User programmable from 0 108 to 2221 Hz Direct Programmable from 3 906 to 14 2 Hz...

Page 4: ...f full scale typical 1 maximum when input signal is at the center frequency of the proportional value s passband Phase 3 degrees error maximum Channels enabled Certain configurations allow the user to enable only one channel of a channel pair See discussion and graphs in the final pages of this datasheet Filter tracking stepping requires a valid speed signal Initial condition Nominal filter set us...

Page 5: ...econds in 1 second intervals Danger From calculated minimum value to 400 seconds in 0 5 second intervals Static Values Static values are measurements used to monitor the machine The Proximitor Monitor returns the following static values Radial Vibration Direct Gap 1X Amplitude 1X Phase Lag 2X Amplitude 2X Phase Lag Not 1X Amplitude Smax Amplitude Thrust Position Direct Gap Differential Expansion D...

Page 6: ... Conducted Susceptibility ENV 50141 Criteria A Electrical Fast Transient EN 61000 4 4 Criteria B Surge Capability EN 61000 4 5 Criteria B Magnetic Field EN 61000 4 8 Criteria A Power Supply Dip EN 61000 4 11 Criteria B Radio Telephone ENV 50204 Criteria B CE Mark Low Voltage Directives Declaration of Conformity 134036 Safety Requirements EN6101001 Hazardous Area Approvals CSA NRTL C Approval Optio...

Page 7: ...0 kg 0 44 lb I O Module barrier Dimensions Height x Width x Depth 241 3 mm x 24 4 mm x 163 1 mm 9 50 in x 0 96 in x 6 42 in Weight 0 46 kg 1 01 lb Rack Space Requirements Monitor Module 1 full height front slot I O Modules 1 full height rear slot Ordering Information General The 3500 40M Module requires the following or later firmware and software revisions 3500 01 Software Version 2 50 3500 02 So...

Page 8: ...External Termination ET Blocks 125808 01 Proximitor ET Block Euro Style Connectors 128015 01 Proximitor ET Block Terminal Strip Connectors 132242 01 Prox Seismic Bussed TMR ET Block Euro Style connectors 132234 01 Prox Seismic Bussed TMR ET Block Terminal Strip connectors Cables 3500 Transducer XDCR Signal to ET Block Cable 129525 AXXXX BXX A Cable Length 0 0 0 5 5 feet 1 5 metres 0 0 0 7 7 feet 2...

Page 9: ... 08 Page 9 of 11 Graphs and Figures 1 Main module front view 2 Status LEDs 3 Buffered Transducer Outputs 4 I O modules 5 Barrier I O module Internal Termination 6 I O Module Internal Termination 7 I O Module External Termination 8 I O Module External Termination Figure 1 ...

Page 10: ...umes that only one channel of a channel pair is enabled The maximum speed depends on the number of rolling elements in the bearing The graph assumes that the rotor low pass filter corner is set at 3 2X the shaft speed and the spike high pass filter corner is set at 4X the element pass frequency for the outer race BPFO 1 Channel Configuration 0 5000 10000 15000 20000 25000 30000 35000 40000 6 8 10 ...

Page 11: ...5000 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Number of Elements Max R PM Rotor Element Pass Spike Figure 3 Bently Nevada is a trademark of General Electric Company Copyright 1999 Bently Nevada LLC 1631 Bently Parkway South Minden Nevada USA 89423 Phone 775 782 3611 Fax 775 215 2873 www ge energy com bently All rights reserved ...

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