BENTLY 176449-01 Front Monitor Differential Expansion Axial Position Module

Input	1–4 proximity transducer signals (e.g., Bently Nevada 3300 XL probes)
Measurement Range	Radial vibration: 0–50 mils (1.27 mm); Eccentricity: 0–100% of shaft diameter
Accuracy	±0.33% of full scale for direct/gap/1X/2X measurements
Output	Buffered analog signals (BNC connectors) and digital alarms

Categories: BENTLY NEVADA

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Description

BENTLY 176449-01 Front Monitor Differential Expansion Axial Position Module

176449-01

The BENTLY 176449-01 (also known as the 3500/40M Proximitor Monitor) is a 4-channel vibration and position monitoring module designed by Bently Nevada (now part of Siemens) for critical rotating machinery protection in industrial applications. As part of the 3500 Machinery Protection System, it integrates with proximity transducers to provide real-time measurements of radial vibration, eccentricity, thrust position, and differential expansion, ensuring early detection of mechanical issues in turbines, compressors, pumps, and other high-value assets. Below is a detailed breakdown of its technical specifications, functional capabilities, and practical applications.

Parameter	Specification
Model	176449-01 (3500/40M-01-00)
Type	Proximitor Monitor (4-channel)
Input	1–4 proximity transducer signals (e.g., Bently Nevada 3300 XL probes)
Measurement Range	Radial vibration: 0–50 mils (1.27 mm); Eccentricity: 0–100% of shaft diameter
Accuracy	±0.33% of full scale for direct/gap/1X/2X measurements
Output	Buffered analog signals (BNC connectors) and digital alarms
Alarm Configuration	User-programmable alert/danger setpoints with adjustable time delays (0.1–60 seconds)
Power Supply	Derived from 3500 rack (24 V DC)
Frequency Response	0.1 Hz–10 kHz (with selectable filters)
Operating Temperature	-30°C to +65°C
Physical Dimensions	241.3 × 24.4 × 241.8 mm (9.5 × 0.96 × 9.5 in)
Weight	0.91 kg (2.0 lb)
Compliance	API 670 (machine protection), ISO 10816-1

176449-01

The BENTLY 176449-01 is a high-precision monitoring solution that combines advanced signal conditioning with robust fault protection, making it essential for rotating machinery in critical industries. Its modular design, wide compatibility with Bently Nevada’s 3500 system, and compliance with API/ISO standards ensure seamless integration into industrial automation workflows. While the product is primarily sourced through third-party suppliers, its proven performance and global support network ensure long-term reliability. For detailed technical documentation or customized solutions, contact Siemens’ industrial support teams or visit their official resource library.

176449-01

Spare Parts

- Replacement Modules: Include 3500/40M-02-00 (external terminations) and 3500/40M-03-00 (hazardous area variants)
- Third-Party Suppliers: Refurbished units available from AX Control, Teknihaus, and Amikon with warranties