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- Emerson
- A6500-LC
- LVDT Converter Universal Measurement Card
- USA
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Product Introduction
The Emerson A6500-LC is a high-performance Universal Measurement Card designed for use in advanced rotating-machinery health monitoring and protection systems. It is part of the broader machinery-health monitoring platform and serves as a flexible card that can accept various sensor types (such as inductive half-bridge sensors, LVDTs, Hall-effect sensors, and raw voltage/displacement signals) and convert them into signals suitable for further processing by the system. The module is optimized for deployment in industrial control racks, typically in conjunction with other modules (such as universal measurement, communication, relay output, etc.) to build a full monitoring / protection architecture.
Belonging to the AMS 6500 (Machinery Health and Protection) series, the A6500-LC is designed to support condition monitoring of critical assets like turbines, compressors, pumps and other rotating equipment. Its universal interface makes it ideal for hybrid measurement environments and supports integration with existing sensors and fault-protection tasks.
Parameters
| Parameter | Specification |
|---|---|
| Model | A6500-LC |
| Brand | Emerson |
| Series | AMS 6500 / Machinery Health & Protection Series |
| Type | Universal Measurement Card |
| Sensor Input Channels | 2 sensor input channels (either independent or combined) |
| Supported Sensors & Signals | Inductive half-bridge sensors, LVDTs, Hall-effect sensors, raw voltage signals |
| Input Voltage Range (Eddy-Current / Raw Signal) | −1 V to −22 V (eddy-current) / +1 V to +23 V (raw signal) |
| Frequency Range | 0 Hz to ~18 750 Hz (for many sensor types) |
| Analog Output / Pulse Output | Pulse outputs: 2 photo-electro-coupled collector-emitter outputs, 19-32 V DC, max 30 mA |
| Power Supply Voltage | −23.25 V to −26.0 V DC (− supply) |
| Power-Load / Supply Accuracy | Max load 35 mA; supply accuracy ±1% (operating range) |
| Operating Temperature | –20 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Dimensions (W × H × D) | Approximate card size: plug-in – 3U module, slot width unspecified exactly |
| Weight | Approx. 1 kg (various sources show ~1 kg) |
| Typical Applications | Vibration/displacement/position monitoring, shaft speed/proximity/LVDT signals |
| Mounting Type | Rack-plug module in system rack |
| Protection / Certifications | Designed for industrial use; supports sensor supervision and raw signal outputs |
Advantages
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Universal sensor compatibility: With support for inductive half-bridge sensors, LVDTs and Hall-effect sensors as well as raw voltage signals, the A6500-LC allows flexible integration into existing sensor systems or new measurement installations.
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High-precision signal processing: The outputs and conversion circuitry are designed for accurate signal representation, with minimal drift over temperature and support for a broad frequency range.
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Modular and standardized format: As a plug-in card for the AMS 6500 series, it fits into established racks, enabling straightforward installation, maintenance and expansion.
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Robust industrial design: Operating range from –20 °C to +70 °C, storage down to –40 °C, and heavy duty industrial spec for vibration/shock environment.
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Real-time condition monitoring support: This module is a key part of machinery health protection systems, enabling early detection of sensor signal abnormalities and integration into protective logic.
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Reduced sensor conversion complexity: By accepting various sensor types and providing raw-signal conversion, the need for separate conversion adapters is reduced, simplifying wiring and system architecture.
Applications
The A6500-LC is widely used in critical industrial environments where machinery health, vibration/displacement monitoring and protection are essential. Typical use-cases include:
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Steam turbines and generators in power plants: for shaft position/displacement, bearing vibration, axial position monitoring.
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Gas turbines and compressors: monitoring shaft vibration, throttle valve position, sensor signals for high-speed rotating equipment.
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Pumping stations, offshore platforms and marine propulsion: continuous asset-health monitoring of rotating machinery in challenging environments.
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Petrochemical and chemical process plants: detecting mechanical faults, shaft misalignment, bearing displacement, and enabling preventive actions.
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Manufacturing and heavy-industry applications: monitoring heavy motors, large gearboxes, rolling-mill drives and other critical rotating machinery.
Brand & Series
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Brand: Emerson
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Series: AMS 6500 / Machinery Health & Protection Series
The AMS 6500 series encompasses a range of modules for rotating-machinery health monitoring and protection, including universal measurement cards, relay output cards, communication interface cards, analog/digital I/O and system racks. The series is recognized for enabling plant-wide condition monitoring, prediction and protection of critical assets.
Related Models (Same Series / Functional Alternatives)
| Model | Type | Description | Key Specs |
|---|---|---|---|
| A6500-UM | Universal Measurement Card | Dual-channel universal measurement card | Approx. 200 g weight; inputs 2 channels; –20 °C to +70 °C |
| A6500-CC | Communication Card | Interface card for Modbus TCP/RTU, OPC UA | Size ~150×100×50 mm; weight approx. 170 g |
| A6500-RC | Relay Output Module | 16-channel output relay card for critical machinery protection | Dimensions ~220×168×43 mm; weight ~2.3 kg |
| A6500-TP | Temperature/Process Card | Process input card for RTD/4-20 mA signals | Multi-channel; industrial spec |
| A6500-LC/DP | Advanced Universal Measurement | Variant with enhanced output/pulse support | Similar form factor; flexible sensor support |
Popular Models from the Same Brand
| Model | Series | Type | Key Specs |
|---|---|---|---|
| KJ4001X1-BA1 | DeltaV | Controller Module | 24 V DC; size approx. 150×185×70 mm; weight ~0.56 kg |
| VE4003S2B1 | DeltaV | Communication Interface Module | 24 V DC; size ~130×185×65 mm; weight ~0.50 kg |
| VE4002S1T2B1 | Ovation | Digital Output Module | 24 V DC; size ~130×185×65 mm; weight ~0.46 kg |
| KJ2003X1-BB1 | DeltaV | Analog Output Module | 0-10 V / 4-20 mA; size ~130×185×65 mm; weight ~0.48 kg |
| VE4005S2B1 | Ovation | Analog Input Module | 0-20 mA / 4-20 mA; size ~130×185×65 mm; weight ~0.52 kg |
FAQ (Frequently Asked Questions)
Q1: What signal types can the A6500-LC handle?
A1: It supports inductive half-bridge sensors, LVDTs, Hall-effect sensors, raw voltage/displacement signals and provides appropriate signal conversion for those inputs.
Q2: How many sensor channels does the module provide?
A2: It provides two sensor input channels, which can be used independently or combined depending on measurement mode.
Q3: What is the operating temperature range?
A3: The module operates safely from –20 °C to +70 °C; storage temperature down to –40 °C.
Q4: What is its weight and mounting format?
A4: The weight is approximately 1 kg; it is a plug-in module designed for rack installation (card type).
Q5: Can it output analog or digital signals to other systems?
A5: Yes, the module features pulse outputs and raw signal outputs and supports integration with further cards for analog output (via the system rack).
Q6: What series does it belong to and what does that mean?
A6: It belongs to the AMS 6500 series, which is a comprehensive machinery health & protection architecture supporting rotating asset monitoring and protection.
Q7: Is it compatible with existing sensor installations?
A7: Yes. Because it accepts a wide variety of sensors (LVDT, Hall, raw signals) it is highly suitable for integrating with existing measurement installations.
Q8: What kinds of protection or supervision features are built-in?
A8: It includes sensor supply supervision, signal conversion with minimal drift, and ensures accuracy within ±1 % of full scale for many input types.
Q9: What applications is it intended for?
A9: It is intended for machinery health monitoring of critical rotating equipment in power plants, oil & gas, petrochemical, marine, and industrial manufacturing.
Q10: What mounting and installation considerations apply?
A10: The module is rack-mounted in a standard system chassis; wiring of sensors, proper power supply and cooling should be considered for optimal performance.
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