The Bently Nevada 125744-02 is the Standard Rack Interface Module (RIM) main card for the 3500 series machinery protection system. It serves as the primary communication interface for rack configuration, data retrieval, and integration with external monitoring software.
Item No :
125744-02Order(MOQ) :
1 PiecePayment :
EXW/CIFProduct Origin :
USAShipping Port :
WuhanLead Time :
3-5daysWeight :
3kg| Specification | Description |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model | 125744-02 |
| Product Family | 3500 Machinery Protection System |
| Product Type | Standard Rack Interface Module (RIM) Main Card |
| Rack Position | Slot 1 (adjacent to power supply) |
| Communication Standards | RS-232 / RS-422 serial communications |
| Communication Protocol | Bently Nevada proprietary protocol |
| Baud Rate | 38.4 k baud maximum (auto baud capable) |
| RS-232 Cable Length | 30 meters (100 feet) maximum |
| RS-422 Cable Length | 1200 meters (4000 feet) maximum |
| Compatible Processors | TDXnet, TDIX, DDIX |
| Front Panel LEDs | OK, TX/RX, TM, CONFIG OK |
| Address Switch | 63 selectable rack addresses |
| Configuration Keylock | RUN / PROGRAM mode selector |
| OK Relay Rating | 5A @ 24 Vdc / 120 Vac (120W / 600 VA) |
| Power Consumption | 4.75 W typical |
| Operating Temperature | -30°C to +65°C (-22°F to +150°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 95%, non-condensing |
| Dimensions (H x W x D) | 241.3 mm x 24.4 mm x 241.8 mm |
| Weight | 0.91 kg (2.0 lb) |
| Country of Origin | USA |
| Lifecycle Status | Active / Available as New Surplus |
| Model | Description | Typical Application |
|---|---|---|
| 125744-02 (this model) | Standard RIM main card (non-TMR) | Standard 3500 rack communication |
| 125744-01 | TMR RIM main card (Triple Modular Redundant) | TMR configurations requiring monitor channel comparison |
| 125768-01 | RIM I/O Module with RS-232/RS-422 Interface | Companion rear I/O for serial communication |
| 135031-01 | RIM I/O Module with Internal Modem Interface | Companion rear I/O for modem communication |
| 125760-01 | Data Manager I/O Module | Connect two communication processors to rack |
| 3500/22M | Transient Data Interface (TDI) | Modern replacement with Ethernet/USB connectivity |
| 3500/05 | 19-inch System Rack | Physical housing for the RIM |
| 3500/15 | Power Supply Module | Required companion for rack operation |
Q1: What is the primary function of the 125744-02?
It is the Standard Rack Interface Module (RIM) main card for the 3500 series machinery protection system. It serves as the primary communication interface for rack configuration, data retrieval, and integration with external monitoring software. The RIM supports Bently Nevada's proprietary protocol used to configure the rack and retrieve machinery information . It also maintains the System Event List and Alarm Event List.
Q2: Where must the 125744-02 be installed?
The module must be installed in Slot 1 of the 3500 rack, adjacent to the power supply. Each 3500 rack requires exactly one RIM or TDI. The module provides certain common functions for the entire rack but is not part of the critical monitoring path.
Q3: What is the difference between 125744-02 and 125744-01?
The 125744-02 is the Standard Rack Interface Module (main card) for non-TMR applications. The 125744-01 is the TMR Rack Interface Module (main card) that performs monitor channel comparison for Triple Modular Redundant configurations. In TMR applications, the TMR RIM continuously compares outputs from three redundant monitors and flags any monitor whose output differs beyond a configured percentage.
Q4: Does the 125744-02 affect the critical monitoring path?
No. While the RIM provides certain common functions for the entire rack, it is not part of the critical monitoring path. The monitoring system's automatic machinery protection functions continue to operate normally even if the RIM is removed or fails. The RIM's operation (or non-operation) has no effect on the proper, normal operation of the overall monitoring system.
Q5: What is the difference between RUN mode and PROGRAM mode on the configuration keylock?
RUN mode allows for normal operation of the rack and locks out configuration changes. Locking the switch in RUN position restricts unauthorized rack reconfiguration. PROGRAM mode allows for normal operation of the rack and also allows for local or remote rack configuration. The key can be removed in either position, allowing the switch to remain in the desired mode.
The Bently Nevada 3500/60-01-00 is a 6-Channel Temperature Monitor for the 3500 Machinery Protection System. The complete configuration consists of the 163179-01 Temperature Monitor (main card) and the 133819-01 RTD/TC I/O Module with internal terminations.
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he Bently Nevada 288062-02 is the Tachometer Module main card for the 3500/50M Tachometer Module in the 3500 Machinery Protection System. It is a dual-channel module that accepts input from proximity probes or magnetic pickups to determine shaft rotational speed, rotor acceleration, and rotor direction.
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