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The 3500/42M (135489‑01) is a four-channel Proximitor/Seismic I/O Module in the 3500 Machinery Protection System. Specifically designed with internal barriers and terminations, it accepts proximity or accelerometer inputs across four channels. It processes vibration, acceleration, velocity, and positional data while providing robust safety isolation for hazardous industrial environments.
| Parameter | Specification |
|---|---|
| Model | 3500/42M (135489‑01) |
| Brand | Bently Nevada (Baker Hughes) |
| Series | 3500 Machinery Protection System |
| I/O Channels | 4 channels (Proximity / Accelerometer inputs) |
| Internal Barriers | Yes—provides intrinsic safety / isolation |
| Mounting | Full-width rack slot in the 3500 system |
| Dimensions (L×W×H) | 241.3 mm × 24.4 mm × 163.1 mm |
| Weight | 0.46 kg |
| Bandwidth | Up to ~30 kHz |
| Operating Temp Range | 0 °C to +65 °C |
| Certifications | cNRTLus Class I Division 2, ATEX / IECEx Zone 2, RoHS, EMC, Low-Voltage, SIL2 |
Ideal for applications including:
Vibration and position monitoring in turbines, compressors, and pumps
Hazardous-area installations requiring explosion-proof barriers
Precise machinery condition monitoring in power generation, oil & gas, and manufacturing sectors
Intrinsic Safety Built-In: Internal barriers provide safe operation in explosive environments
Compact & Modular: Uses one rack slot yet delivers four-channel monitoring
Versatile Sensor Compatibility: Accepts proximity probes and accelerometers on each channel
High-Frequency Sensitivity: PID capabilities into the tens of kilohertz range
Reliable Performance: Engineered for harsh conditions and real-world deployments
| Model | Description |
|---|---|
| 3500/42M (135489‑01) | 4-channel I/O Module with internal safety barriers (this model) |
| 3500/42M (128229‑01) | I/O Module without barriers—simpler installations |
| 3500/42M (135489‑02) | Internal barrier I/O — mix of Prox/Accel and Velomitor channels |
| 3500/42M (135489‑03) | All Velomitor channel internal barrier I/O module |
| 3500/45 | Position-only monitor with internal barriers |
| Model | Description |
|---|---|
| 3500/50M | Tachometer / speed monitoring module |
| 3500/60 | Six-channel temperature monitor |
| 3500/32M | Four-channel relay logic module |
| 3500/62 | Process variable monitoring (4–20 mA) module |
| 3500/25 | TMR-based overspeed protection module |
Q1: What is the 135489‑01 module used for?
A1: It’s a 4-channel I/O module with built-in intrinsic safety barriers—used to monitor vibration or position in rotating machinery.
Q2: Which sensors can it support?
A2: Each channel accepts proximity probes or accelerometers (Prox/Accel).
Q3: Are internal barriers included?
A3: Yes—it includes protection for safe use in hazardous areas.
Q4: What are the module’s dimensions and weight?
A4: About 241.3 mm × 24.4 mm × 163.1 mm; weight is approximately 0.46 kg.
Q5: What bandwidth does it handle?
A5: Capable of up to 30 kHz of signal bandwidth—good for high-precision monitoring.
Q6: Which safety standards does it meet?
A6: It meets various safety certifications including cNRTLus Division 2, ATEX/IECEx Zone 2, EMC, RoHS, and SIL2.
Q7: What temperature range is supported?
A7: The module operates between 0 °C and +65 °C.
Q8: Which rack does it fit?
A8: It is designed for the 3500 Series full-width rack slot.
Q9: Can Velomitor sensors be used?
A9: This specific part is for Prox/Accel sensing only, not Velomitor.
Q10: Is it compatible with dual-channel or other module types?
A10: It aligns with the 3500 platform and is often paired with alarm and processing modules for full-system setups.
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.