Product Details
The Yokogawa AMM22 S3, also cataloged as the AMM22 Multiplexer Input Module, operates as a dedicated hardware component for electrical parameter measurement acquisition and signal processing within Yokogawa industrial automation platforms. It directly samples AC/DC voltage, current, frequency, power factor, and harmonics to deliver digitized data over backplane and serial networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AMM22 S3 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | ~0.45 kg |
| Dimensions | Standard sub-rack module dimensions |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | Sub-rack backplane powered (<= 10 W nominal) |
| Measurement Types | Voltage, Current, Power Factor, Frequency, Harmonics |
| Voltage Range | 0-600V AC/DC (+/-0.1%) |
| Current Input | 0-5A direct / CT (50:1) |
| Safety Rating | SIL2 (IEC 61508) |
| Sampling Rate | 128 samples/cycle |
| Communication Protocols | Modbus RTU / TCP |
4-20 mA HART Loop Protocol and Channel Isolation
The AMM22 S3 features channel-to-channel isolation barriers to separate high-voltage measurement inputs from internal logic buses and digital communication interfaces. Operating within Yokogawa sub-rack architectures alongside process I/O modules executing 4-20 mA HART loop protocol communications, the module suppresses high common-mode voltage spikes and electrical noise. Internal signal conditioning guarantees continuous data sampling across all active channels without degrading adjacent low-voltage analog transmission loops.
Frequently Asked Questions
Q: What is the primary function of the 50:1 CT configuration on the AMM22 S3 current input?
A: The integrated 50:1 current transformer scaling enables the module to accept up to 5 A direct currents from secondary instrument transformers and scale them internally for power parameter calculations.
Q: Which communication protocols are natively supported by the AMM22 S3 interface?
A: The module supports Modbus RTU over serial lines and Modbus TCP over Ethernet networks for real-time field data transmission.
Q: Is the AMM22 S3 suitable for safety-instrumented functions?
A: Yes, the hardware design is certified to SIL2 standards in accordance with IEC 61508 for integration into safety-critical monitoring loops.
Field Installation Guidelines
- ESD Protection: Always wear a grounded anti-static wrist strap when handling the card to prevent electrostatic discharge damage to internal components.
- Voltage Input Wiring: Install external fused disconnects on all voltage measurement leads entering the 0-600V AC/DC input terminals to facilitate safe isolation during maintenance.
- Shield Grounding: Connect communication cable shields to a single dedicated earthing bar at the cabinet entry point to suppress high-frequency electrical noise.
- Conductor Routing: Route high-voltage potential line connections and current transformer leads in separate wiring raceways away from low-voltage DC logic lines.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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