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SKU:3500/50M-01-00
Bently Nevada 3500/50M-01-00 Tachometer Module | 286566-02
Manufacturer: Bently Nevada
Product No.: 3500/50M-01-00
Product Type: Tachometer Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 820g
Shipping port: Xiamen
Warranty: 12 months
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Product Overview
The Bently Nevada 3500/50M-01-00 286566-02 is a dual-channel tachometer module for 3500 monitoring systems. It measures speed, zero speed, and rotor acceleration on turbines, compressors, and pumps using proximity probes or magnetic pickups.
Technical Configuration
3500/50M – Tachometer Module.
-01 – I/O module with internal terminations.
-00 – No agency approval.
Accepts up to two transducer inputs. Supports 1 to 255 events per revolution, max full scale 99,999 rpm, max input frequency 20 kHz.
Technical Specifications
| Input Signal Range | +10.0 V to -24.0 V |
| Input Impedance | 20 kΩ (standard) / 40 kΩ (TMR) / 7.15 kΩ (Internal Barrier) |
| Transducer Supply | 24 Vdc, 40 mA max per channel |
| Max Input Frequency | 20 kHz |
| Max Full Scale RPM | 99,999 rpm |
| RPM Accuracy (<100 rpm) | ±0.1 rpm |
| RPM Accuracy (100-10,000 rpm) | ±1 rpm |
| RPM Accuracy (10,000-99,999 rpm) | ±0.01% of true speed |
| RPM/Min Accuracy | ±20 rpm/min |
| Recorder Output | +4 to +20 mA, 0 to 600 Ω load |
| Resolution | 0.3662 µA/bit ±0.25% (room temp) |
| Power Consumption | 5.8 W typical |
| Dimensions (HxWxD) | 241.3 x 24.4 x 241.8 mm (9.50 x 0.96 x 9.52 in) |
| Weight | 0.82 kg (1.8 lb) |
| Rack Space | 1 full-height front slot |
Installation Guide
Mount in any full-height front slot of a 3500 rack. For proximity probes, set the Auto Threshold for inputs above 0.0167 Hz. For magnetic pickups, minimum input frequency is 3.3 Hz. Manual threshold adjustable from +9.5 Vdc to -23.5 Vdc with 500 mV peak-to-peak minimum amplitude. Use shielded cables for field wiring.
Engineering Advantages
High accuracy across the full speed range (±0.01% above 10,000 rpm). Dual-channel input with independent recorder outputs. Short-circuit protected buffered transducer outputs on front coaxial connectors. Supports advanced rotor acceleration and zero speed detection with programmable alarm delays (1-60 sec).
Technical FAQs
Q1: What transducers are compatible?
A1: Accepts up to two proximity probe transducers or passive magnetic pickups. For magnetic pickups, the minimum input frequency is 3.3 Hz.
Q2: How to set the trigger threshold?
A2: Use Auto Threshold for signals above 0.0167 Hz (1 rpm at 1 event/rev). Manual threshold adjustable from +9.5 Vdc to -23.5 Vdc with minimum 500 mV peak-to-peak amplitude.
Q3: What are the firmware requirements for integration?
A3: Requires 3500/22M Firmware Rev 1.70, Configuration Software v4.20+, Data Acquisition v2.52+, and 3500/50M Firmware Rev 5.30+. Not compatible with 3500/20 racks.
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