Bently Nevada 177230 Series Integrated Vibration Transmitter

Bently Nevada 177230 Series is an integrated vibration transmitter (seismic transmitter) that combines a piezoelectric accelerometer and signal conditioning circuitry into a single unit. Designed with a two-wire, 4-20 mA loop-powered configuration, it directly outputs a standard industrial signal proportional to vibration velocity, eliminating the need for external proximity systems or signal conditioning modules.

This series is specifically designed for continuous condition monitoring of non-critical rotating machinery such as fans, motors, pumps, and compressors. It seamlessly integrates with PLC, DCS, or SCADA control systems, enabling users to implement predictive maintenance programs and reduce unplanned downtime.

Model Number Coding Structure

The 177230 series follows the coding structure 177230-AA-BB-CC. The fields are defined as follows:

Code Position Field Option Description

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

01 0-25.4 mm/s (0-1.0 in/s)

02 0-50.8 mm/s (0-2.0 in/s)

BB Frequency Response 01 10 Hz – 1 kHz (RMS, suitable for most industrial equipment)

02 3 Hz – 1 kHz (Peak, suitable for low-speed machinery such as large fans)

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

CN Chinese certification (NEPSI)

Complete Model List

Classified by Measurement Range

Model Measurement Range Frequency Response Certification Typical Application

177230-00-01-05 0-12.7 mm/s 10 Hz-1 kHz International Small/medium motors, pumps, fans (low vibration levels)

177230-00-01-CN 0-12.7 mm/s 10 Hz-1 kHz China Same as above, for domestic projects

177230-00-02-05 0-12.7 mm/s 3 Hz-1 kHz International Low-speed equipment, such as large fans

177230-01-01-05 0-25.4 mm/s 10 Hz-1 kHz International Large motors, compressors, blowers

177230-01-01-CN 0-25.4 mm/s 10 Hz-1 kHz China Same as above, for domestic projects

177230-01-02-05 0-25.4 mm/s 3 Hz-1 kHz International Low-speed, heavy-duty equipment

177230-01-02-CN 0-25.4 mm/s 3 Hz-1 kHz China Same as above, for domestic projects

177230-02-01-05 0-50.8 mm/s 10 Hz-1 kHz International Impact vibration, high-amplitude equipment

177230-02-01-CN 0-50.8 mm/s 10 Hz-1 kHz China Same as above, for domestic projects

177230-02-02-05 0-50.8 mm/s 3 Hz-1 kHz International Low-speed, high-amplitude equipment

177230-02-02-CN 0-50.8 mm/s 3 Hz-1 kHz China Same as above, for domestic projects

Model Reference Quick Table

Core Technical Specifications

Electrical Specifications

Parameter Specification

Output Signal 4-20 mA (two-wire, proportional to vibration velocity)

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

Maximum Loop Impedance 1,000 Ω @ 35 VDC

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

Mounting Resonance 12 kHz

Transverse Sensitivity < 5%

Operating Temperature -40°C to +85°C (depending on model)

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

Weight Approximately 1 kg

Recommended Cables

Cable Type Part Number Description

Non‑armored Cable 16925-XX XX = length in feet, e.g., 16925-33 = 10 meters

Armored Cable 16710-XX XX = length in meters, suitable for harsh environments

The Bently Nevada 177230 Series integrated vibration transmitter offers the core advantages of integrated design, direct 4-20 mA output, simple installation, and no field configuration required. With a variety of range, frequency response, and certification combinations, this series meets the requirements of different equipment and operating conditions, and is widely used in industries such as power generation, petrochemical, and metallurgy.

By seamlessly integrating vibration data into existing control systems, the 177230 Series enables users to implement predictive maintenance, optimize maintenance schedules, and effectively reduce unplanned downtime and asset failure risks.