EMERSON A6120 | Factory-Sealed AMS 6500 Protection Card

Description

• Model & Brand: Emerson A6120
• Product Family: AMS 6500 Machinery Health Monitor / Classic Protection System
• Part Type: Case Seismic Electro-Dynamic Vibration Monitor
• Physical Format: DIN 41494 PCB/Eurocard format
• Approx. Dimensions: 30.0 W × 128.4 H × 160.0 D mm (6 TE × 3 HE × 160 mm)
• Estimated Net Weight: Approximately 320 g
• Estimated Shipping Weight: Approximately 450 g, including standard packing
• Packing Volume: Approximately 2.5 dm³ / 0.08 ft³
• Rack Space: 1 slot
• Rack Density: Up to 14 modules in a 19-inch rack
• What’s in the Box: A6120 protection card as supplied; terminal accessories, manuals, and rack hardware should not be assumed included unless specifically listed on the purchase order.
• Storage Environment: −30°C to +85°C; 5–95% relative humidity, non-condensing.

Emerson’s own AMS 6500 documentation identifies the A6120 as the Case Seismic Electro-dynamic Vibration Monitor and provides the dimensional, weight, environmental, and power figures above.

Product Introduction

The Emerson A6120 mounts directly into the 3U AMS 6500 chassis as a dedicated machinery-protection card, occupying one standard Eurocard slot. Its role is case-seismic vibration monitoring within the classic AMS 6500 protection architecture, making correct rack position, connector condition, and card identity important during maintenance (particularly when replacing an older protection card in an operating machinery train).

This is not a generic vibration transmitter. The A6120 belongs to the AMS 6500 Classic protection-card family, where combinations of vibration, position, temperature, speed/phase, process-input, relay, and communication cards can be installed in the chassis. Emerson’s current modernization material specifically discusses AMS 6500 Classic systems as legacy protection platforms and offers AMS 6500 ATG as a modernization path.

Core Technical Specifications

The 6 W maximum power consumption is particularly useful for cabinet thermal calculations. At 24 VDC, Emerson specifies approximately 250 mA maximum card current.

EMERSON A6120

Global Compliance & Industry Certifications

For an procurement package, separate the card’s documented technical compliance from certifications belonging to the complete AMS 6500 assembly or a particular hazardous-area installation.

• EMC: Emerson’s published data references EN 50081-1 and EN 50082-2 for EMC resistance.
• CE Mark: CE conformity may apply to the applicable Emerson system/assembly and market configuration. Do not infer CE marking for an individual loose card solely from the model number.
• UL/cUL: A UL/cUL listing should be verified against the applicable AMS 6500 chassis/system certification record rather than assumed from the card designation.
• ATEX / IECEx: The is a machinery-protection card, not automatically an intrinsically safe hazardous-area device. Hazardous-area use normally depends on the complete certified system, installation method, barriers/interfaces, and enclosure.
• Marine / DNV: Emerson currently identifies DNV GL certification for its newer AMS 6500 ATG hazardous-environment offering, but this does not establish DNV approval for an individual card.
• Machinery Protection: Emerson states that its current machinery-protection systems support API 670-compliant applications; the exact compliance basis for an installed legacy system must be verified from the system documentation and project certification package.

For audit control, retain the product label, system certification, declaration of conformity, and installation-specific approval as separate records.

Verify specific lot certifications with OEM.

Long-Term Storage & Asset Preservation Guide

Keep the card inside its original ESD shielding bag. The is an exposed PCB-style Eurocard, and the connector edge plus electronic components should not be left uncovered on a metal shelf. Use an antistatic bag, cushioning, and a rigid carton whenever the original factory packaging is unavailable.

Control humidity. Emerson specifies 5–95% RH, non-condensing for operation, but warehouse storage should be materially drier and stable. I recommend a controlled spare-parts area below 60% RH, with desiccant and humidity indication for long-storage lots (especially where the card may remain untouched for several years). The documented storage temperature is −30°C to +85°C.

Inspect before energization after extended storage. Look closely at the edge contacts, connector surfaces, PCB coating, retaining hardware, and any electrolytic components for oxidation or physical deterioration. Do not perform capacitor reforming or battery removal as a blanket procedure—the documentation does not establish those actions as routine preservation requirements for this exact card.

Physical Installation Prerequisites

The is designed for installation in the AMS 6500 19-inch rack, using one standard card position. Emerson specifies the board in DIN 41494 Eurocard format, approximately 30 × 128.4 × 160 mm.

Cabinet clearance: Do not impose an arbitrary 50 mm clearance around the individual card. The card is intended to operate within the engineered AMS 6500 chassis, where card spacing and airflow are defined by the rack assembly. Preserve the manufacturer’s chassis ventilation path and do not block fan, vent, or rear-connector areas.

Power: Design verification should account for the card’s maximum 6 W load and approximately 250 mA at 24 VDC. Check the total rack power budget rather than sizing the supply from the alone.

Grounding: The chassis, rack, and protective earth must follow the AMS 6500 installation documentation and site grounding scheme. Do not create an improvised bonding path through signal wiring.

Mechanical installation: Inspect the card guides and retaining mechanism before insertion. Keep the PCB perpendicular to the guides; never push against the populated board or connector shell.

Buyer’s FAQ — Logistics & Compliance Focus

Q: What HS Tariff Code should I use when shipping an Emerson internationally?
A: Do not assign a tariff code solely from the model number. The correct HS classification depends on the actual customs description, country of export/import, and whether the card is declared as a machinery-protection instrument, electrical apparatus, or part of a monitoring system. For a formal customs entry, have the broker validate the classification against the applicable national tariff schedule and retain the ruling/supporting rationale in the audit file.

Q: What should I state as Country of Origin?
A: Use the actual country of manufacture shown on the product documentation or traceable manufacturer records. Do not infer COO from the seller’s warehouse location, export location, or freight origin. For regulated procurement, retain the commercial invoice, COO declaration, serial/lot identification, and packing record together.

Q: Should this card be shipped with insurance?
A: For an obsolete or difficult-to-source AMS 6500 spare, yes. The is physically small—about 320 g net and 450 g packed—but replacement cost and downtime exposure can be much larger than freight value. Require shock-resistant packaging, ESD protection, shipment tracking, and cargo insurance based on the documented commercial value.

Q: Does the arrive with the latest firmware pre-loaded?
A: Do not make that assumption. The is a legacy AMS 6500 protection card, and the available Emerson specification identifies configuration as password protected rather than defining a current firmware version for the individual card. Record the exact hardware identification and installed system revision before accepting a replacement into controlled inventory.