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Bently Nevada 3500/50 133442-01 Tachometer Module
Manufacturer: Bently Nevada
Product Number: 3500/50 (133442-01)
Category: Rear I/O Interface Module / Tachometer Module Rear I/O
System Compatibility: 3500/50 Tachometer Monitor, 3500 Machinery Protection System
Function: Provides rear input/output interface for tachometer monitor in Bently 3500 systems
Product Description
The Bently Nevada 3500/50 Tachometer Module Rear I/O (133442-01) is a rear input/output interface module designed to operate with the 3500/50 Tachometer Monitor in the Bently Nevada 3500 Machinery Protection System.
The rear I/O module provides all electrical connections between the tachometer front monitor and external field devices such as Keyphasor® probes, magnetic pickups, or TTL-type sensors. It ensures reliable signal transmission and facilitates secure wiring of sensor inputs, power, and outputs.
When combined with the front 3500/50 Tachometer Module, the 133442-01 forms a complete, high-performance monitoring unit capable of measuring rotational speed (RPM), phase angle, and acceleration for critical rotating machinery.
Key Features
-
Dedicated rear I/O interface for the 3500/50 Tachometer Monitor.
-
Provides connection terminals for up to two tachometer channels.
-
Supports input from magnetic pickups, proximity probes, and TTL-type speed sensors.
-
Enables measurement of speed, phase, and acceleration.
-
High signal integrity and electrical isolation.
-
Modular design for easy maintenance and replacement.
-
Allows front module removal without disturbing field wiring.
-
Compatible with all standard Bently Nevada 3500 racks.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Model Number | 133442-01 | Rear I/O module for 3500/50 Tachometer Monitor |
| Function | Provides sensor and system wiring connections | Works with 3500/50 front monitor for speed and phase monitoring |
| Compatible Front Module | 3500/50 Tachometer Monitor | Forms a complete monitoring pair |
| Number of Channels Supported | 2 channels | Independent speed or phase measurement per channel |
| Input Type | Magnetic pickup, proximity probe, or TTL sensor | Connects via rear terminal block |
| Input Voltage Range | −24 V to +24 V peak | Supports AC or DC coupled signals |
| Input Frequency Range | 0.016 Hz to 20 kHz | Suitable for slow and high-speed machinery |
| Electrical Isolation | Channel-to-channel and channel-to-ground isolation | Reduces noise interference |
| Output Interfaces | 4–20 mA, relay, and system communication | Routed to the 3500 rack backplane |
| Power Consumption | < 1 W | Rear I/O only (front module provides main processing power) |
| Operating Temperature | −30 °C to +65 °C | Industrial-grade environmental range |
| Storage Temperature | −40 °C to +85 °C | Safe non-operating range |
| Mounting | Rear of 3500 rack | Mates directly with front 3500/50 module |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 163.1 mm (9.50 in × 0.96 in × 6.42 in) | Standard Bently Nevada rack module size |
| Weight | Approx. 0.32 kg (0.71 lb) | Lightweight aluminum design |
| Housing Material | Aluminum alloy with protective coating | Durable and corrosion resistant |
| Compliance | CE, CSA, ATEX (as part of 3500 system) | Meets international safety standards |
| Country of Origin | United States–Minden, Nevada (USA) | Manufactured by Bently Nevada, Baker Hughes |
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Bently Nevada 3500/50 133442-01 Tachometer Module
Manufacturer: Bently Nevada
Product Number: 3500/50 (133442-01)
Category: Rear I/O Interface Module / Tachometer Module Rear I/O
System Compatibility: 3500/50 Tachometer Monitor, 3500 Machinery Protection System
Function: Provides rear input/output interface for tachometer monitor in Bently 3500 systems
Product Description
The Bently Nevada 3500/50 Tachometer Module Rear I/O (133442-01) is a rear input/output interface module designed to operate with the 3500/50 Tachometer Monitor in the Bently Nevada 3500 Machinery Protection System.
The rear I/O module provides all electrical connections between the tachometer front monitor and external field devices such as Keyphasor® probes, magnetic pickups, or TTL-type sensors. It ensures reliable signal transmission and facilitates secure wiring of sensor inputs, power, and outputs.
When combined with the front 3500/50 Tachometer Module, the 133442-01 forms a complete, high-performance monitoring unit capable of measuring rotational speed (RPM), phase angle, and acceleration for critical rotating machinery.
Key Features
-
Dedicated rear I/O interface for the 3500/50 Tachometer Monitor.
-
Provides connection terminals for up to two tachometer channels.
-
Supports input from magnetic pickups, proximity probes, and TTL-type speed sensors.
-
Enables measurement of speed, phase, and acceleration.
-
High signal integrity and electrical isolation.
-
Modular design for easy maintenance and replacement.
-
Allows front module removal without disturbing field wiring.
-
Compatible with all standard Bently Nevada 3500 racks.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Model Number | 133442-01 | Rear I/O module for 3500/50 Tachometer Monitor |
| Function | Provides sensor and system wiring connections | Works with 3500/50 front monitor for speed and phase monitoring |
| Compatible Front Module | 3500/50 Tachometer Monitor | Forms a complete monitoring pair |
| Number of Channels Supported | 2 channels | Independent speed or phase measurement per channel |
| Input Type | Magnetic pickup, proximity probe, or TTL sensor | Connects via rear terminal block |
| Input Voltage Range | −24 V to +24 V peak | Supports AC or DC coupled signals |
| Input Frequency Range | 0.016 Hz to 20 kHz | Suitable for slow and high-speed machinery |
| Electrical Isolation | Channel-to-channel and channel-to-ground isolation | Reduces noise interference |
| Output Interfaces | 4–20 mA, relay, and system communication | Routed to the 3500 rack backplane |
| Power Consumption | < 1 W | Rear I/O only (front module provides main processing power) |
| Operating Temperature | −30 °C to +65 °C | Industrial-grade environmental range |
| Storage Temperature | −40 °C to +85 °C | Safe non-operating range |
| Mounting | Rear of 3500 rack | Mates directly with front 3500/50 module |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 163.1 mm (9.50 in × 0.96 in × 6.42 in) | Standard Bently Nevada rack module size |
| Weight | Approx. 0.32 kg (0.71 lb) | Lightweight aluminum design |
| Housing Material | Aluminum alloy with protective coating | Durable and corrosion resistant |
| Compliance | CE, CSA, ATEX (as part of 3500 system) | Meets international safety standards |
| Country of Origin | United States–Minden, Nevada (USA) | Manufactured by Bently Nevada, Baker Hughes |
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