Description
The 3500/70M Recip Impulse Velocity Monitor is a 4-channel device used as part of the reciprocating compressor solutions package to monitor compressor crankcase and crosshead vibration. The monitor accepts input from seismic transducers, conditions the signal to derive vibration
measurements, and compares the conditioned signals with user-programmable alarms.
You can program each channel using the 3500 Rack Configuration Software to perform the following functions:
l Impulse Acceleration
l Acceleration 2
l Recip Velocity
l Low Frequency Recip Velocity
The monitor channels are programmed in pairs and can perform up to two of the aforementioned functions at a time.
For example, channels 1 and 2 can perform one function while channels 3 and 4 perform another or the same function.
The primary purpose of the 3500/70M Recip Impulse Velocity Monitor is to provide the following:
l Machinery protection for reciprocating compressors by continuously comparing monitored parameters against configured alarm setpoints to drive alarms
l Essential reciprocating compressor machine information for both operations and maintenance personnel
Each channel, depending on configuration, typically conditions its input signal to generate various parameters called static values. You can configure alert setpoints for each active static value and danger setpoints for any two of the active static values.
Ordering Information
For the detailed listing of country and product specific approvals, refer to the Approvals Quick Reference Guide (108M1756) available from
Bently.com.
Recip Impulse / Velocity Monitor
3500/70M - AA-BB
A: I/O Module Type
01 Prox/Velom I/O Module with Internal Terminations
02 Prox/Velom I/O Module with External Terminations
03 Internal Barrier, Four Accelerometers
04 Internal Barrier, Two Accelerometers, Two Velomitors
05 Internal Barrier, Four Velomitors
B: Agency Approval
00 None
01 CSA / NRTL / C (Class 1, Division 2)
02 ATEX/ IECEx/ CSA (Class 1, Zone 2)
Order the Earthing Module for each rack with internal barriers.
External Termination Blocks
Part Number Description
128702-01 Recorder External Termination Block Euro Style connectors
128710-01 Recorder External Termination Block Terminal Strip connectors
125808-08 Proximitor / Velomitor External Termination Block Euro Style connectors
128015-08 Proximitor / Velomitor External Termination Block Terminal Strip connectors
Cables
3500 Transducer (XDCR) to External Termination (ET) Block Cable
129525 - AAAA-BB
A: I/O Cable Length
0005 5 feet (1.5 meters)
0007 7 feet (2.1 meters)
0010 10 feet (3.0 meters)
0025 25 feet (7.6 meters)
0050 50 feet (15.2 meters)
0100 100 feet (30.5 meters)
B: Assembly Instructions
01 Not assembled
02 Assembled
3500 Recorder Output to External Termination (ET) Block Cable
129529-AAAA-BB
A: I/O Cable Length
0005 5 feet (1.5 meters)
0007 7 feet (2.1 meters)
0010 10 feet (3.0 meters)
0025 25 feet (7.6 meters)
0050 50 feet (15.2 meters)
0100 100 feet (30.5 meters)
B: Assembly Instructions
01 Not assembled
02 Assembled
Spares
Part Number Description
176449-09 3500/70M Recip Impulse Velocity Monitor
166226-01 3500/70M Recip Impulse Velocity Monitor User Manual
135489-01 I/O Module with Internal Barriers, Internal Terminations 4 x Prox/Accel
135489-02 I/O Module with Internal Barriers, Internal Terminations 2 x Prox/Accel and 2 x Velomitor
135489-03 I/O Module with Internal Barriers, Internal Terminations 4 x Velomitor
140471-01 Prox/Velom I/O Module with Internal Terminations
140482-01 Prox/Velom I/O Module with External Terminations
00561941 3500/70M Prox/Velom I/O Module ten-pin connector shunt
00580434 Internal I/O Module connector header Euro Style, 8 pin For I/O modules 128229-01 and 138708-01
00580432 Internal I/O Module connector header Euro Style, 10 pin For I/O modules 128229-01, 138708-01
00502133 Internal I/O Module connector header Euro Style, 12 pin
