Product Name:Recip Impulse Velocity Monitor
Brand Name: Bently Nevada
Model Number:3500/70M 176449-09+135489-01
Country of Origin:USA
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
Bently Nevada |
Model Number: |
3500/70M 176449-09+135489-01 |
Country of Origin: |
USA |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
The BENTLY NEVADA 3500/70M Recip Impulse Velocity Monitor (176449-09) is a 4‑channel module designed for reciprocating compressor crankcase and crosshead vibration monitoring. When paired with the I/O Module (135489-01) featuring internal barriers and terminations for hazardous area applications, the 176449-09-135489-01 combination provides intrinsically safe seismic signal conditioning. Each channel can be configured for impulse acceleration, acceleration 2, reciprocating velocity, or low‑frequency velocity. The monitor compares conditioned signals against user‑programmable alarms, delivering both machinery protection and diagnostic insights for operations and maintenance personnel.
Reciprocating gas compressors (crankcase and crosshead vibration)
Reciprocating engines and pumps
High‑pressure hydrogen and process gas compressors (oil & gas refineries)
Natural gas pipeline booster stations
Chemical processing reciprocating pumps and compressors
Power generation reciprocating backup generators
Offshore platforms requiring intrinsically safe hazardous area operation
Condition‑based maintenance and predictive diagnostics
4 channels independently programmable for Impulse Acceleration, Acceleration 2, Recip Velocity, or Low‑Frequency Recip Velocity
Pairs of channels work together, enabling two different monitoring functions simultaneously
Internal safety barriers (135489-01) provide intrinsically safe interfaces for hazardous areas without external barrier cabinets
Front panel coaxial connectors per channel for short‑circuit protected buffered transducer outputs
Hot‑swappable main module for minimal maintenance downtime
Velocity (Velomitor) sensitivity from 90 – 575 mV/(in/s)
Configurable high‑pass, low‑pass, bias, and 1X/2X vector filters
Peak, RMS, and user‑adjustable crank angle band measurement modes
Wide 3‑30,000 Hz frequency response for full vibration spectrum analysis
Seamless integration with System 1® software and 3500 rack configuration tools
Hazardous area certifications: CSA/NRTL/C (Class I Div 2), ATEX/IECEx
Crankcase and crosshead vibration monitoring – Measures vibration from seismic transducers to detect mechanical looseness, impact events, rod cracking, and excessive clearance in reciprocating machinery
Conditioned signal comparison – Compares sensed signals against user‑programmable alert and danger setpoints; triggers alarms and activates relays when thresholds are crossed.
Programmable channel configuration – Each of the 4 channels can be set to one of four monitoring modes (Impulse Acceleration, Acceleration 2, Recip Velocity, Low‑Frequency Recip Velocity) via 3500 Rack Configuration Software
Intrinsically safe signal conditioning – 135489-01 I/O module isolates and protects signals entering from hazardous area transducers, providing explosion protection without degrading system performance
Static value generation – Outputs direct bias voltage, crank angle band peak/RMS acceleration, 1X/2X amplitude, and 1X/2X phase angle values
Vibration data streaming – Transmits waveform and static data to the 3500 TDI (Transient Data Interface) for analysis in System 1 software
Self‑diagnostics – Monitors internal health and sensor integrity; reports via OK and TX/RX LEDs； Bias voltage is provided for diagnostic purposes only (contains no machinery health information）
Q1: What is the difference between 3500/70M monitor 176449-09 and the 135489-01 I/O module?
A1: 176449-09 is the main monitoring board that processes signals and generates alarms, while 135489-01 is the 4‑channel internal barrier I/O module that provides intrinsically safe signal interfacing for hazardous area proximity/acceleometer sensors. Both are required together for a complete protection channel.
Q2: Is the 135489-01 I/O module suitable for hazardous area installations?
A2: Yes. The 135489-01 I/O module is specifically a 4‑channel Internal Barrier I/O module. Its core function is to provide intrinsically safe (IS) interfaces for transducer systems in hazardous areas, offering explosion protection without degrading system performance. It is certified for ATEX, IECEx, and CSA/NRTL/C (Class I, Division 2) hazardous locations.
Q3: How many monitoring functions can the 176449-09 perform simultaneously?
A3: The 176449-09 has 4 channels that are programmed in pairs. The device can perform up to two different monitoring functions at a given time. For example, Channels 1 and 2 can be configured for Impulse Acceleration while Channels 3 and 4 are configured for Recip Velocity, or all four channels can be set to the same function.
Q4: What are the minimum software and firmware versions required to operate the 3500/70M?
A4: The 3500/70M requires 3500/01 Configuration Software v5.2 or later and System 1 Software v6.90 or later. The 3500/22M TDI Firmware must be v1.75 or later, and the 3500/70M Firmware itself must be v4.21 or later. Note that 3500/02 and 3500/03 software are not supported for use with this monitor.
Q5: What is the standard operating temperature range when the 3500/70M is used with the 135489-01 I/O module?
A5: When using the 176449-09 with the internal barrier I/O module 135489-01, the rack operating temperature range is 0℃ to +65℃ (32℉ to +149℉) . If a non‑barrier I/O module (PN 140471-01) is used, the expanded operating temperature range of -30℃ to +65℃ (-22℉ to +149℉) is available. The storage temperature for all configurations is -40℃ to +85℃ (-40℉ to +185℉) .
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