Bently Nevada 177230-00-02-05 177230 Series Integrated Vibration Transmitter

Bently Nevada 177230-00-02-05 is a specialized integrated vibration transmitter designed for continuous monitoring of low-speed rotating machinery. As part of the trusted 177230 series, this loop-powered device combines a piezoelectric accelerometer and signal conditioning into a single rugged housing, delivering a 4-20 mA output proportional to vibration velocity with an extended low-frequency response down to 3 Hz.

Ideal for large fans, cooling tower drives, low-speed compressors, and other equipment operating below 600 RPM, the 177230-00-02-05 provides reliable vibration data directly to PLC, DCS, or SCADA systems—enabling predictive maintenance programs in power generation, petrochemical, mining, and heavy industrial applications.

Key Features

Extended Low-Frequency Response: 3 Hz – 1 kHz frequency range captures vibration data from slow-speed machinery (≤ 600 RPM).

Integrated Design: Sensor and signal conditioner in one unit—no external driver or proximity required.

4-20 mA Loop-Powered Output: Industry-standard signal for direct connection to control systems.

0-12.7 mm/s Measurement Range: Ideal for normal vibration levels in large, slow-speed equipment.

International Hazardous Area Certifications: CSA, ATEX, IECEx approved for use in explosive environments.

Rugged 304L Stainless Steel Housing: Withstands harsh industrial conditions, moisture, and corrosive atmospheres.

Built-in Self-Diagnostics: Fault indication via output below 3.6 mA or above 21.6 mA.

Raw Dynamic Signal Output: Pin C provides unfiltered acceleration data for advanced spectral analysis.

Model Number Breakdown: 177230-00-02-05

The 177230 series follows the coding structure 177230-AA-BB-CC:

Code Position Parameter Value for 177230-00-02-05 Description

AA Measurement Range 00 0-12.7 mm/s (0-0.5 in/s)

BB Frequency Response 02 3 Hz – 1 kHz (Peak, extended low-frequency)

CC Certification 05 International (CSA/NRTL/C, ATEX, IECEx)

177230-00-02-05 configuration: Designed specifically for low-speed machinery monitoring with international hazardous area approvals.

Technical Specifications

Electrical Specifications

Parameter Specification

Measurement Range 0 – 12.7 mm/s (0 – 0.5 in/s) overall velocity

Frequency Response 3 Hz – 1 kHz (±10%)

Output Signal 4 – 20 mA (proportional to vibration velocity)

Power Supply 12 – 30 VDC, loop-powered (current limited to 40 mA)

Accuracy ±1.5% of full scale

Warm-up Time < 15 seconds (within 2% of final value)

Fault Indication Output < 3.6 mA or > 21.6 mA indicates internal fault

Mechanical & Environmental Specifications

Parameter Specification

Housing Material 304L Stainless Steel

Connector Type 3-pin MIL-C-5015 military standard

Dimensions 25.4 mm diameter × 66.0 mm height (excluding connector)

Weight Approximately 1 kg

Mounting Resonance 12 kHz

Transverse Sensitivity < 5%

Operating Temperature –40°C to +85°C (–40°F to +185°F)

Ingress Protection NEMA 4X / IP66 (with proper cable connection)

Connector Pin Assignment

Pin Signal

Pin A 4-20 mA (+)

Pin B 4-20 mA (-)

Pin C Dynamic acceleration signal (unfiltered)

Certifications

Certification Standard

CSA / NRTL / C Class I, Division 1, Groups B, C, D

ATEX II 2 G Ex db IIC T6 Gb

IECEx Ex db IIC T6 Gb