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 |

| Parameter | Specification |
|---|---|
| Model | 3500/72M 176449-08 |
| Channels | 2 |
| Input Signal Type | Proximity sensors (e.g., 3300 XL series) |
| Output Type | 4–20 mA analog output + buffered output |
| Measurement Range | Configurable depending on rod stroke |
| Accuracy | ±0.25% of full scale reading |
| Power Supply | Powered by 3500 series rack |
| Operating Temp | -30°C to +65°C |
| Dimensions (L×W×H) | 241.3 mm × 24.4 mm × 241.8 mm |
| Weight | 0.91 kg |
| Compliance | API 618, ISO 10816 (reciprocating machinery) |
| Mounting | Standard 3500 series rack slot |
The Bently Nevada 3500/72M 176449-08 is a dual-channel vibration monitoring module specifically designed for reciprocating machinery such as compressors and pumps. It monitors the position and stroke of connecting rods with high precision using proximity sensor inputs, providing real-time feedback on machine health. Its robust design ensures reliable operation even in harsh industrial environments.
This module is widely used in:
Natural gas compressor stations for reliable rod position monitoring.
Petrochemical plants to prevent unplanned downtime due to rod wear.
Oil refineries to continuously monitor critical reciprocating equipment.
LNG processing plants for real-time diagnostics.
Industrial manufacturing to extend machinery life through precise motion tracking.
Pipeline compressor stations to maintain consistent operation and early fault detection.
Dual-channel monitoring offers redundant protection.
High measurement accuracy (±0.25%) ensures precise status assessment.
User-programmable alarm thresholds for customized monitoring.
Compatible with 3300 XL series proximity sensors for easy integration.
Real-time 4–20 mA outputs for seamless connection to DCS or PLC systems.
EMI-resistant design suitable for harsh industrial environments.
Hot-swappable modules reduce downtime during maintenance.
Meets international standards API 618 and ISO 10816.
Compact size saves rack space and eases installation.
Early fault detection extends machinery service life.
Brand: Bently Nevada
Series: 3500 Machinery Protection System
| Model | Description | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/72M 176449-05 | Rod position monitor module | 2 | 241.3 × 24.4 × 241.8 | 0.91 |
| 3500/42M 140471-01 | Proximity/seismic input module | 8 | 160 × 110 × 250 | 1.5 |
| 3500/55 145988-02 | Velocity monitor module | 4 | 241 × 24 × 241 | 0.9 |
| 3500/64 176449-05 | Seismic velocity monitor module | 4 | 241 × 24 × 241 | 0.92 |
| 3500/92 140471-01 | Communication gateway module | N/A | 160 × 110 × 250 | 1.2 |
| Model | Description | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/22 140471-01 | Vibration monitor module | 8 | 160 × 110 × 250 | 1.2 |
| 3500/55 140471-01 | Velocity monitor module | 4 | 241 × 24 × 241 | 0.9 |
| 3500/64M 176449-05 | Seismic velocity monitor | 4 | 241 × 24 × 241 | 0.92 |
| 3500/62 163179-03 | Proximity sensor module | 8 | 160 × 110 × 250 | 1.3 |
| 3500/93 140471-01 | Network interface module | N/A | 160 × 110 × 250 | 1.3 |
Q1: What types of sensors are compatible with this module?
A1: It is designed to work with Bently Nevada 3300 XL series proximity sensors.
Q2: Can the alarm thresholds be customized?
A2: Yes, users can program alarm thresholds to fit their operational needs.
Q3: What is the operating temperature range?
A3: The module operates reliably between -30°C and +65°C.
Q4: Is the module hot-swappable?
A4: Yes, it can be replaced without shutting down the entire system.
Q5: How accurate are the measurements?
A5: Accuracy is ±0.25% of the full-scale reading.
Q6: What outputs does the module provide?
A6: It provides 4–20 mA analog output plus buffered output signals.
Q7: What is the module’s physical size and weight?
A7: Dimensions are approximately 241.3 mm × 24.4 mm × 241.8 mm; weight is 0.91 kg.
Q8: What standards does the module comply with?
A8: It meets API 618 and ISO 10816 standards for reciprocating machinery.
Q9: Can this module be integrated with DCS or PLC systems?
A9: Yes, through its standard 4–20 mA outputs.
Q10: How does this module help extend equipment life?
A10: By providing early detection of faults, it allows proactive maintenance to prevent damage.
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.