Bently Nevada 149369-01 Key components of 3500 mechanical protection system

Bently Nevada 3500/25 Enhanced Key Phase Module (P/N 149369-01) is a professional equipment in the field of mechanical condition monitoring. As a key component of the 3500 mechanical protection system, it provides accurate key phase signals for the monitoring module. The module adopts half-height design and dual-channel configuration, which is completely the old system in backwards compatibility and can directly replace PWA 125792-01 module.

Second, the core functional characteristics

1. Signal processing ability

Multi-event processing: Support multiple event signal processing per revolution, up to 20kHz.

Signal conversion: convert the input signal close to the probe or magnetic pickup into the digital key phase signal.

Intelligent threshold: It provides two working modes: automatic threshold (above 0.017Hz) and manual threshold (adjustable from 0 to -20V DC).

Lag adjustment: the user can adjust the lag range from 0.2 to 2.5V

2. System integration characteristics

Configuration flexibility: Support standard configuration (up to 4 key phase signals) and pairing configuration (up to 8 key phase signals).

Redundancy design: TMR (Triple Module Redundancy) application needs to use two key phase modules to work in parallel.

Isolation option: isolated I/O module version is available, which is suitable for situations where signals need to be isolated from the control system.

III. Detailed explanation of technical specifications

1. Input characteristics

Parameter specification

Input type is close to probe or magnetic pickup.

Input range non-isolated I/O: +0.8V to-21.0V.

Isolated I/O: +5V to -11V

Input impedance ≥ 21.8kω

Minimum trigger amplitude automatic threshold: 2Vpp

Manual threshold: 500mVpp

Speed range is 1-1,200,000 CPM (0.017-20kHz).

2. Output characteristics

Parameter specification

Output interface front panel coaxial connector+rear panel European connector

Output impedance ≤ 504Ω

Power output-24 VDC, max 40mA per channel.

3. Performance indicators

Parameter non-processing signal accuracy processing signal accuracy

0.017-100Hz ±1cpm ±1cpm

101-500Hz ±8cpm ±8cpm(61-150Hz)

501-20kHz ±1%cpm ±1%cpm(151-20kHz)

Fourth, the application advantages

Phase measurement enhancement:

Support the generation of single event per revolution signal from multi-event per revolution input.

The curve of phase error of isolated I/O version with rotation speed has been quantized (see Figure 1).

System management functions:

Support for field upgradeable firmware

Provide asset management data reporting function.

Industrial compatibility:

Meet the hazardous area certification such as ATEX/IECEx/CSA.

Approved by DNV GL and ABS classification society

Meet the requirements of FCC Part 15 and EN 61000-6-2/4 EMC.

125680-01

106M1081-01

125840-02

3500/92 136180-01

125840-02

3500/25 149369-01

330100-90-01

3500/92 136180-01