ProductPRODUCT
Featured products
Contact Us
- Bently Nevada
- 3500/72М 135489-01
- Barrier Proximitor I/O Module
- USA
- 241.3 mm × 24.4 mm × 163.1 mm
- 0.46kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 95
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| sales@plc-automations.com | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
🔧 Product Overview: Bently Nevada 3500/72M 135489-01
Brand: Bently Nevada
Series: 3500 Series Machinery Protection System
Module Type: Recip Rod Position Monitor I/O Module (with Internal Barriers and Internal Terminations)
The 3500/72M 135489-01 is a rear I/O module designed to work with the front-end 3500/72M Rod Position Monitor module. It provides signal termination, safety barrier functionality, and internal wiring support for sensors that measure rod position and rod drop in reciprocating compressors. This I/O module includes internal barriers, making it suitable for use in hazardous areas, and also features internal terminations to simplify wiring and reduce the need for external terminal boards.
This module is essential for ensuring safe, reliable, and high-fidelity signal transmission from field sensors to the front-end monitoring system, particularly in high-vibration or high-risk industrial environments.
📊 Technical Specifications
| Parameter | Value |
|---|---|
| Model | 3500/72M 135489-01 |
| Module Type | I/O Module with Internal Barriers and Internal Terminations |
| Compatible Front Module | 3500/72M Rod Position Monitor |
| Channels Supported | 2 (for dual probe pairs per monitored cylinder) |
| Input Type | Proximity Probes / Rod Drop Sensors |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -55°C to +90°C |
| Relative Humidity | 5% to 95% non-condensing |
| Barrier Type | Intrinsically Safe, Internal Barrier (No need for external barriers) |
| Terminations | Internal (no external terminal blocks required) |
| Mounting | Rear of 3500 rack, paired with front module |
| Dimensions (Barrier Version) | 241.3 mm × 24.4 mm × 163.1 mm |
| Weight (Barrier Version) | 0.46 kg |
| Dimensions (Non-Barrier) | 241.3 mm × 24.4 mm × 99.1 mm |
| Weight (Non-Barrier) | 0.20 kg |
🏭 Applications
-
Monitoring rod position and rod drop in reciprocating compressors
-
Installation in hazardous areas requiring intrinsic safety barriers
-
Integration with 3500 Machinery Protection System
-
Use in oil & gas, chemical, power generation, and refining industries
-
Enhancing equipment reliability and reducing unplanned downtime
-
Real-time data acquisition for predictive maintenance and safety systems
🌟 Product Advantages
-
✅ Built-in safety: Internal barriers allow safe operation in hazardous zones
-
✅ Wiring efficiency: Internal terminations reduce field wiring complexity
-
✅ Compact integration: Fits directly into the 3500 rack, saving space
-
✅ High compatibility: Designed specifically for use with 3500/72M monitors
-
✅ Industrial robustness: Wide operating temperature and humidity range
-
✅ Low maintenance: Durable construction for long-term performance
-
✅ Diagnostic ready: Supports real-time health monitoring and alarming
🔗 Brand and Series
-
Brand: Bently Nevada
-
Series: 3500 Series
-
Category: Machinery Protection & Condition Monitoring
-
Module Class: I/O Module for Rod Position Monitoring
📌 Related Models (Same Series or Functionally Related)
| Model | Channels | Function | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|---|
| 3500/72M 176449-08 | 2 | Rod Position Monitor (Front Module) | 241.3 × 24.4 × 241.8 | 0.91 | Paired with 135489-01; measures rod drop and position |
| 3500/72M 140471-01 | 2 | I/O Module, Non-Barrier | 241.3 × 24.4 × 99.1 | 0.20 | Compact version without safety barriers |
| 3500/42M 135489-01 | 4 | I/O Module for Proximitor/Seismic | 241.3 × 24.4 × 163.1 | 0.46 | Similar I/O module used for vibration monitoring |
| 3500/42M 176449-02 | 4 | Proximitor/Seismic Monitor (Front Module) | 241.3 × 24.4 × 241.8 | 0.91 | Paired with 135489-01; monitors vibration signals |
| 3500/73M 149992-01 | 2 | Tachometer Input Monitor | 241.3 × 24.4 × 99.1 | 0.30 | Used for speed measurement and overspeed protection |
🔥 Popular Bently Nevada Models
| Model | Function | Channels | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|---|
| 3500/40M | Proximitor Vibration Monitor | 4 | 241.3 × 24.4 × 241.8 | 1.10 | For shaft vibration & displacement |
| 3500/60 | Temperature Monitor (RTD/TC) | 6 | 241.3 × 24.4 × 241.8 | 0.90 | Supports thermocouples and RTDs |
| 3500/42M | Proximitor/Seismic Monitor | 4 | 241.3 × 24.4 × 241.8 | 0.91 | Monitors vibration & seismic input |
| 3500/65 | 16-Channel Temperature Monitor | 16 | 241.3 × 24.4 × 241.8 | 1.20 | High-density temperature monitoring |
| 3500/45 | Position Monitor | 4 | 241.3 × 24.4 × 241.8 | 1.00 | For valve position or shaft displacement |
❓ Frequently Asked Questions (FAQ)
Q1: What does the 3500/72M 135489-01 I/O module do?
A1: It provides the interface for sensor wiring, electrical isolation, and signal transmission between field sensors and the 3500/72M Rod Position Monitor.
Q2: What kind of sensors can be used with this module?
A2: It supports proximity probes and rod drop sensors used to measure position and motion in reciprocating compressors.
Q3: What are internal barriers and why are they important?
A3: Internal barriers limit electrical energy going to hazardous-area sensors, making the system intrinsically safe and reducing explosion risks.
Q4: What is the difference between barrier and non-barrier versions?
A4: The barrier version provides intrinsic safety and is slightly deeper and heavier, while the non-barrier version is more compact but lacks hazardous area protection.
Q5: Can I install this module without using external terminal blocks?
A5: Yes, this module features internal terminations, so no external terminal strips are needed for wiring.
Q6: How does it pair with the front monitoring module?
A6: It installs directly behind the 3500/72M Rod Position Monitor in the rack and handles the I/O connections and signal routing.
Q7: Is this module suitable for outdoor or industrial environments?
A7: Yes, it supports a wide operating temperature and humidity range, making it ideal for harsh industrial settings.
Q8: Can I use this I/O module with other front-end modules?
A8: It is specifically designed for use with the 3500/72M front module. Using it with other types may not be compatible.
Q9: What happens if the module fails?
A9: Signal transmission to the monitoring system may be interrupted, and the monitoring module could raise alarms or lose input readings.
Q10: How do I maintain this module?
A10: Periodic inspection of wiring, checking terminations, verifying signal integrity, and ensuring environmental conditions remain within limits is recommended.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.