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- Emerson
- A6370D
- Overspeed Protection Monitor
- USA
- 211 mm × 130 mm × 43 mm
- 0.49kg
- Xiamen, China
- New & In Stock
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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.
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Product Introduction
The Emerson A6370D is a high-performance Overspeed Protection Monitoring Module designed for critical rotating machinery such as turbines, compressors, pumps, and generators. It provides precise and reliable protection against overspeed and reverse rotation conditions, helping to ensure equipment integrity and operational safety in high-risk industrial environments.
As part of the AMS 6300 SIS Series, the A6370D integrates seamlessly into safety-instrumented systems (SIS) and distributed control architectures. It supports various sensor types (eddy current, Hall-effect, and magnetic VR sensors) and provides fast signal acquisition, strong isolation, and compliance with SIL 3 functional safety standards. Its modular rack-mount design allows easy installation, redundancy, and maintenance in process-critical facilities.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | A6370D |
| Brand | Emerson |
| Series | AMS 6300 SIS Monitoring and Protection Series |
| Type | Overspeed Protection and Monitoring Module |
| Sensor Input Type | Eddy current, Hall-effect, and magnetic VR sensors |
| Sensor Input Voltage Range | 0 V to ± 26 V; magnetic VR: 1 Vpp to 30 V RMS |
| Frequency Range / Speed Range | 0 Hz to 20 kHz (corresponds to 0 – 99 999 rpm) |
| Digital Inputs (Backplane) | 4 isolated channels; logic low: 0–5 V; logic high: 13–31 V |
| Current Outputs (Backplane) | 2 isolated channels; 0/4–20 mA or 20–4/0 mA; ± 1 % FS accuracy |
| Digital Outputs (Backplane) | 7 channels – Out 1-6 + Channel OK (short-circuit protected) |
| Pulse Outputs | 3 rear outputs + 1 front output; 0–20 kHz frequency |
| Communication Interfaces | USB (for configuration), RS-485 (up to 32 devices), Profibus DP (optional) |
| Power Supply | –24.5 V DC ± 1.5 V (reverse-polarity and short-circuit protected) |
| Response Time | ≈ 35 ms (1× per-rev mode); ≈ 12.5 ms (automatic mode) |
| Operating Temperature | –20 °C to +65 °C |
| Storage Temperature | –40 °C to +70 °C |
| Humidity | 5 % to 95 % (non-condensing) |
| Protection Class | IP20 (in rack); IP00 (standalone) |
| Dimensions (W × H × D) | 211 mm × 130 mm × 43 mm |
| Weight | 0.49 kg |
| Certifications | IEC 61508 compliant; SIL 3 (overspeed) / SIL 2 (reverse rotation) |
| Typical Applications | Turbines, compressors, generators, pumps, petrochemical and power plants |
Product Advantages
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Highest Safety Certification: SIL 3 for overspeed protection and SIL 2 for reverse-rotation detection, meeting IEC 61508 standards.
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Multi-Sensor Compatibility: Accepts eddy current, Hall, and magnetic VR sensors for flexible integration with different field devices.
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Ultra-Fast Response: Automatic protection response within ≈ 12.5 ms to prevent equipment damage.
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Robust Isolation & Protection: Built-in electrical isolation and short-circuit protection enhance operational reliability.
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Modular Rack Design: Compact 19-inch format ensures simple installation, replacement, and scalability.
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Rich Communication Options: USB, RS-485, and optional Profibus DP interfaces for easy system integration and diagnostics.
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Industrial-Grade Durability: Operates reliably from –20 °C to +65 °C under high vibration and humidity environments.
Applications
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Turbine and Compressor Systems: Monitors shaft speed and prevents catastrophic overspeed events.
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Power Generation Units: Protects rotating components in generators and backup drives.
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Oil & Gas Facilities: Provides overspeed safety control in offshore platforms and compressor stations.
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Petrochemical Plants: Monitors motor-driven pumps and fans in high-risk areas.
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Marine and Industrial Machinery: Ensures operational safety of rotating shafts, engines, and centrifuges.
Brand and Series
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Brand: Emerson
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Series: AMS 6300 SIS (Safety Instrumented System) Series
The AMS 6300 SIS series is a modular family of vibration, speed, and safety monitoring modules designed to meet the most demanding industrial reliability and safety standards. The series features system redundancy, rapid data acquisition, and flexible integration into DCS, PLC, and ESD systems.
Related or Equivalent Models (Same Series)
| Model | Type | Description | Key Specifications |
|---|---|---|---|
| A6370D/DP | Overspeed Module (with Profibus DP) | Identical to A6370D with Profibus DP interface | 0–20 kHz; 211×130×43 mm; 0.49 kg |
| A6371 | System Backplane | Rack backplane providing bus power and redundancy | 19″ 3U rack; 0.8 kg |
| A6370 | Base Overspeed Module | Similar to A6370D but without enhanced communications | 0–20 kHz; 211×130×43 mm; 0.49 kg |
| A6370/DP | Profibus-Enabled Version | Overspeed monitor with Profibus DP integration | 0–20 kHz; 211×130×43 mm; 0.49 kg |
| A6360 | Legacy Speed Monitor | Previous-generation protection module | 0–20 kHz; ≈ 0.50 kg |
Popular Models from the Same Brand
| Model | Series | Type | Description / Key Specs |
|---|---|---|---|
| KJ4001X1-BA1 | DeltaV | Controller Module | 24 V DC supply; 150×185×70 mm; 0.56 kg |
| VE4003S2B1 | DeltaV | Communication Module | 24 V DC; 130×185×65 mm; 0.50 kg |
| VE4002S1T2B1 | Ovation | Digital Output Module | 24 V DC; 130×185×65 mm; 0.46 kg |
| KJ2003X1-BB1 | DeltaV | Analog Output Module | 0–10 V / 4–20 mA; 130×185×65 mm; 0.48 kg |
| VE4005S2B1 | Ovation | Analog Input Module | 0–20 mA / 4–20 mA; 130×185×65 mm; 0.52 kg |
FAQ (10 Common Questions)
Q1: What is the main purpose of the A6370D module?
A1: It monitors the rotational speed of machinery and provides overspeed and reverse-rotation protection.
Q2: What safety level does it support?
A2: The module is certified to SIL 3 for overspeed protection and SIL 2 for reverse-rotation detection.
Q3: Which sensors can be connected?
A3: Eddy current probes, Hall-effect sensors, and magnetic VR sensors are supported.
Q4: How fast does it respond to overspeed?
A4: Automatic mode response time is approximately 12.5 ms; in per-revolution mode about 35 ms.
Q5: What is its operating temperature range?
A5: –20 °C to +65 °C in operation, with storage range –40 °C to +70 °C.
Q6: Can it communicate with DCS or PLC systems?
A6: Yes, through RS-485 or optional Profibus DP communication interfaces.
Q7: How many outputs are available?
A7: Two current outputs, seven digital outputs, plus four pulse outputs (three rear + one front).
Q8: What power supply does it require?
A8: –24.5 V DC ± 1.5 V with internal protection against reverse polarity and short circuit.
Q9: Is it suitable for hazardous or harsh industrial environments?
A9: Yes, it is designed for industrial-grade durability, conformal coated, and vibration resistant.
Q10: What are its physical dimensions and weight?
A10: 211 mm × 130 mm × 43 mm (L × H × D); approximately 0.49 kg.
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.