The Bently Nevada 133442-01 is a dual-channel Tachometer I/O Module with Internal Terminations, designed for the 3500/50 Tachometer Module in the 3500 Machinery Protection System. The module conditions raw pulse signals to determine shaft rotational speed, rotor acceleration, and rotor direction, and can supply conditioned Keyphasor signals to the rack backplane for use by other monitoring modules.
Item No :
133442-01Order(MOQ) :
1 PiecePayment :
EXW/CIFProduct Origin :
USAShipping Port :
WuhanLead Time :
3-5daysWeight :
3kg| Specification | Description |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model | 133442-01 |
| Product Type | Tachometer I/O Module (Internal Terminations) |
| Compatible Monitor | 3500/50 Tachometer Module (main card 133388-02) |
| Number of Channels | 2 independent channels |
| Input Types | Proximity probes, magnetic pickups |
| Input Signal Range | -24 VDC to +10 VDC |
| Input Impedance | 20 kΩ (Standard); 40 kΩ (TMR); 7.15 kΩ (Internal Barrier) |
| Speed Range | 0–99,999 RPM |
| Frequency Range | 0.0167 Hz – 20 kHz |
| RPM Accuracy | <100 rpm: ±0.1 rpm; 100–10,000 rpm: ±1 rpm; >10,000 rpm: ±0.01% |
| Recorder Output | +4 to +20 mA per channel |
| Transducer Power Supply | -24 VDC |
| Power Consumption | 5.8 W typical |
| Termination Type | Internal Terminations (Integrated) |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 95%, non-condensing |
| Dimensions (H x W x D) | 241.3 mm x 24.4 mm x 163.1 mm |
| Weight | Approx. 0.38–0.8 kg (varies by source) |
| Rack Space | 1 full-height rear slot |
| Certifications | API 670, ATEX, SIL 2 |
| Country of Origin | USA |
| Lifecycle Status | Active / Available as New Surplus |
| Model | Description | Typical Application |
|---|---|---|
| 133442-01 (this model) | Tachometer I/O Module with Internal Terminations | Standard speed monitoring with internal rack wiring |
| 133434-01 | Tachometer I/O Module with External Terminations | Applications requiring external wiring access |
| 136703-01 | Tachometer I/O Module with Internal Barrier + Internal Terminations | Hazardous area (intrinsically safe) applications |
| 133450-01 | TMR Tachometer I/O Module with External Terminations | Triple Modular Redundant configurations |
| 133388-02 | 3500/50 Tachometer Module (main card) | Companion front card for the 133442-01 |
| 3500/50-01-00 | Complete Tachometer Module assembly | Standard configuration with internal terminations |
Q1: What is the primary function of the 133442-01?
It is the rear I/O module for the 3500/50 Tachometer Module. It receives pulse inputs from proximity probes or magnetic pickups and conditions them for the main tachometer card to determine shaft rotational speed, rotor acceleration, and rotor direction . It can also supply conditioned Keyphasor signals to the 3500 rack backplane for use by other monitoring modules, eliminating the need for a separate Keyphasor module in many applications .
Q2: What is the difference between 133442-01 and 133434-01?
The 133442-01 uses Internal Terminations — field wiring connects directly to built-in terminal blocks on the module. The 133434-01 uses External Terminations — field wiring connects to separate external terminal blocks, with a cable linking to the I/O module .
Q3: Can the 133442-01 be used for overspeed protection?
No. Bently Nevada explicitly states that the 3500/50 Tachometer Module is not designed for use independently as, or as a component of, a speed control or overspeed protection system . For overspeed protection, the dedicated 3500/53 Overspeed Detection Module is required.
Q4: Is the 133442-01 hot-swappable?
Yes. The module supports hot-swap capability (live insertion and removal) without interrupting adjacent protection monitors in the same rack, provided that system configuration parameters remain unchanged during the exchange .
Q5: What are the compatible front monitor cards for the 133442-01?
The 133442-01 is designed for use with the 3500/50 Tachometer Module (main card 133388-02) . It is also compatible with the 3500/50M M-series tachometer front card (e.g., 286566-02).
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.
The Bently Nevada 3500/53M-01-00 is a Single-Channel Electronic Overspeed Detection Module for the 3500 Machinery Protection System, configured with the 286566-01 Overspeed Detection main card and the 133396-01 Overspeed Detection I/O Module.
The Bently Nevada 3500/53M-01-00 is a Single-Channel Electronic Overspeed Detection Module for the 3500 Machinery Protection System. The 3500/53M is the split-base M-series version, using the 286566-01 main card with the 133396-01 rear I/O module. It is not drop-in compatible with the legacy 3500/53 (133388-01).
The Bently Nevada 3500/53M-01-00 is a Single-Channel Electronic Overspeed Detection Module for the 3500 Machinery Protection System. The 3500/53M is the split-base M-series version, using the 286566-01 main card with the 133396-01 rear I/O module. It is not drop-in compatible with the legacy 3500/53 (133388-01).
The Bently Nevada 3500/53-03-00 is a Single-Channel Electronic Overspeed Detection Module for the 3500 Machinery Protection System, configured with the 133388-01 Overspeed Detection main card and the 133396-01 Overspeed Detection I/O Module.
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.
The Bently Nevada 3500/50M-01-00 is a 2-Channel Tachometer Module for the 3500 Machinery Protection System, configured with the 288062-02 Tachometer main card and the 133442-01 I/O Module with internal terminations. The "M" designation indicates M-series functionality, providing enhanced integration with System 1 diagnostic software.
The Bently Nevada 133442-01 is a dual-channel Tachometer I/O Module with Internal Terminations, designed for the 3500/50 Tachometer Module in the 3500 Machinery Protection System. The module conditions raw pulse signals to determine shaft rotational speed, rotor acceleration, and rotor direction, and can supply conditioned Keyphasor signals to the rack backplane for use by other monitoring modules.
Scan to Wechat :
Scan to WhatsApp :
