Bently Nevada 177230-00-01-05 Seismic Transmitter

Description

The Bently Nevada 177230-00-01-05 is a simple, loop-powered seismic transmitter designed to integrate machine vibration monitoring directly into programmable logic controllers (PLCs), DCS, and SCADA systems. The 177230-00-01-05 incorporates a ceramic shear sensing element and implements an industry-standard 4 to 20 mA loop-powered interface to measure overall vibration levels. This specific configuration provides a 0 to 12.7 mm/s (0 to 0.5 in/s) RMS measurement range across a frequency response of 10 Hz to 1 kHz (600 cpm to 60 kcpm), paired with multiple hazardous area approvals. It conditions and outputs a proportional 4 to 20 mA current loop alongside an unbuffered dynamic acceleration signal for detailed vibration analysis and machinery condition monitoring.

Features

• Loop-powered 4 to 20 mA interface for direct connection to PLCs, DCS, and SCADA systems
• Provides a proportional 4 to 20 mA velocity output signal alongside an unbuffered dynamic acceleration output
• Ceramic shear sensing element design
• No field configuration or adjustments required
• Built-in self-test capability and protected interface
• Hermetically sealed 316L stainless steel case construction
• 3-pin MIL-C-5015 top electrical connector

Applications

• Overall vibration monitoring for industrial rotating machinery
• Plant asset condition monitoring integrated into PLC, DCS, or SCADA architectures
• Balance of plant equipment monitoring
• Machinery protection and catastrophic failure prevention

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Mounting: Mount directly to the machine via a stud into the 1/4-28 UNF tapped hole using a torque of 4 to 7 N-m (35.4 to 62.0 in-lbf).
• Magnetic Base Handling: If using a magnetic base, roll the base onto the machine surface rather than snapping it into place to avoid generating high spike signals that may damage internal electronics.
• Grounding and Isolation: Pin B (Dynamic Signal Negative) requires isolation from any ground. Grounding this terminal will short the 4 to 20 mA loop and result in loss of output.
• Cable Selection: Connect using a 3-pin MIL-C-5015 mating connector with shielded three-conductor cables (18 to 22 AWG with 80% minimum shield coverage).

Compliance and Certifications

• FCC: Complies with Part 15 of FCC Rules
• EMC Directives: EMC Directive 2014/30/EU
• Environmental Directives: ROHS Directive 2011/65/EU
• Maritime Approvals: DNV rules for classification - Ships; DNV rules for classification - High speed and light craft; DNV offshore standards
• cNRTLus Approvals: Class I, Div 2, Groups A, B, C, D (Ex nL IIC T4, AEx nA IIC T4); Class I, Div 1, Groups A, B, C, D; Class II, Div 1, Groups E, F, G; Class III, Div 1 (Ex ia IIC T4, AEx ia IIC T4)
• ATEX/IECEx Approvals: Zone 0/1: II 1 G, Ex ia IIC T4 Ga; Zone 2: II 3 G, Ex na IIC T4 Gc (Ta = -40 degC to +80 degC)