The Bently Nevada 133388-02 is the Tachometer Module main card for the 3500/50 Tachometer Module in the 3500 Machinery Protection System. It is a 2-channel module that accepts input from proximity probes or magnetic pickups to determine shaft rotational speed, rotor acceleration, and rotor direction. The 133388-02 is the standard main card for the 3500/50-01-00 configuration.
Item No :
133388-02Order(MOQ) :
1 PiecePayment :
EXW/CIFProduct Origin :
USAShipping Port :
WuhanLead Time :
3-5daysWeight :
3kg| Specification | Description |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model | 3500/50 |
| Part Number | 133388-02 |
| Product Type | Tachometer Module (Main Card) |
| Number of Channels | 2 |
| Input Source | Proximity probes or magnetic pickups |
| Input Signal Range | +10.0 V to -24.0 V |
| Input Impedance | 20 kΩ (standard); 40 kΩ (TMR); 7.15 kΩ (internal barrier) |
| Speed Range | 0 to 99,999 RPM |
| Frequency Range | 0.0167 Hz to 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, 40 mA max per channel |
| Power Consumption | 5.8 W typical |
| Front Panel LEDs | OK, TX/RX, Bypass |
| Operating Temperature | -30°C to +65°C (-22°F to +150°F) |
| Storage Temperature | -40°C to +85°C |
| Dimensions (H x W x D) | 241.3 mm x 24.4 mm x 241.8 mm |
| Weight | 0.82 kg (1.8 lb) |
| Rack Space | 1 full-height front slot |
| Compliance | API 670 |
| Country of Origin | USA |
| Model | Description | Typical Application |
|---|---|---|
| 133388-02 (this model) | 3500/50 Tachometer Module (main card) | Standard speed monitoring with 3500/50 |
| 133442-01 | I/O Module with Internal Terminations | Companion rear I/O for 133388-02 |
| 133434-01 | I/O Module with External Terminations | Alternative rear I/O for external wiring |
| 133388-01 | 3500/53 Overspeed Detection Module (main card) | Dedicated overspeed protection (not interchangeable with 133388-02) |
| 3500/50-01-00 | Complete Tachometer Module assembly | Standard configuration with internal terminations |
| 3500/50-04-00 | Tachometer Module with internal barriers | Hazardous area applications |
Q1: What is the primary function of the 133388-02?
It is the main card for the 3500/50 Tachometer Module. It processes signals from proximity probes or magnetic pickups to determine shaft rotational speed, rotor acceleration, and rotor direction, comparing these measurements against user-programmable alarm setpoints .
Q2: Can the 133388-02 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 (using part number 133388-01) is required .
Q3: What is the difference between 133388-02 and 133388-01?
The 133388-02 is the main card for the 3500/50 Tachometer Module (speed monitoring). The 133388-01 is the main card for the 3500/53 Overspeed Detection Module (safety-critical overspeed protection). They are not interchangeable .
Q4: What companion I/O modules are required?
The 133388-02 requires a matching rear I/O module:
133442-01: Internal Terminations
133434-01: External Terminations
136703-01: Internal Barriers + Internal Terminations (hazardous area)
Q5: What are the configuration options for the 3500/50?
The module can be configured via 3500 Rack Configuration Software for:
Speed Monitoring with Setpoint Alarming and Speed Band Alarming
Speed Monitoring with Setpoint Alarming and Zero Speed Notification
Speed Monitoring with Setpoint Alarming and Rotor Acceleration Alarming
Speed Monitoring with Setpoint Alarming and Reverse Rotation Notification
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.
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