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The AAI143‑S53/A4S00 is a rugged, sixteen‑channel analog input module engineered for control and instrumentation systems. Designed for industrial environments, it reads 4–20 mA signals with high accuracy, extreme reliability, and strong isolation. The S53 variant supports an extended operating temperature range and is equipped with a pressure‑clamp connection block (A4S00) for secure field wiring. Industry-tested for heavy-duty use, this module ensures long-term stability in temperature-variable, high-interference environments.
It is ideally placed in applications where precise multi-channel signal acquisition and robust physical connections are both critical.
| Specification | Details |
|---|---|
| Model | AAI143‑S53/A4S00 |
| Input Signal | 4–20 mA DC |
| Channels | 16 (individually isolated) |
| Accuracy | ±16 µA |
| Input Resistance | 270–350 Ω across the input range |
| Data Update Interval | 10 ms |
| Isolation Voltage | 1500 V AC (input to system, 1 min) |
| Transmitter Loop Power | 19–25.5 V DC (max 25 mA per channel) |
| Operating Temperature Range | –20 °C to +70 °C |
| Storage Temperature Range | –40 °C to +85 °C |
| Interface Type | A4S00 (pressure‑clamp terminal block) |
| Mounting | Rack or baseplate module installation |
| Dimensions (L × W × H) | 107.5 mm × 32.8 mm × 130 mm |
| Weight | 0.30 kg |
| Power Consumption | ~230 mA at 5 V DC; ~540 mA at 24 V DC |
| Certification | Meets industrial safety and EMC standards |
Refinery & Petrochemical
Ideal for signal acquisition from flow, pressure, or temperature transmitters in hot zone panels.
Power Plant I&C
Interfaces accurately with turbine and boiler sensors in harsh thermal environments.
Water & Wastewater Treatment
Monitors chemical dosing, pump statuses, and level sensor inputs with high fidelity.
Pharmaceutical Manufacturing
Supports reliable analog signal input in controlled clean‑room environments.
Heavy Duty Automation
Perfect for processing plants (steel, mining, pulp) where environmental extremes demand robust signal modules.
High-Temperature Capability
Operates reliably up to +70 °C, a step above standard modules.
Secure Wiring with Clamp Blocks
The A4S00 terminal ensures fast, tight, and vibration-resistant connections.
Solid Channel Isolation
1500 V electrical separation between channels and system base safeguards against crosstalk and failure propagation.
High Precision Sensing
±16 µA accuracy facilitates tighter control and detection of process variances.
Fast Scanning for Real-Time Data
10‑millisecond update intervals deliver near‑instantaneous feedback to control systems.
Space‑Saving & Lightweight
Compact dimensions and 0.3 kg weight make for high-density installations.
Brand: Yokogawa
Series: AAI143 Series — isolated analog input modules for process control systems, featuring variants by temperature range, interface type, and communication protocol.
| Model | Input Type | Channels | Temp Range | Interface | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| AAI143‑S50/A4S00 | 4–20 mA | 16 | –20 °C to +60 °C | A4S00 | 107.5 × 32.8 × 130 | 0.30 |
| AAI143‑H53/A4S00 | 4–20 mA + HART | 16 | –20 °C to +70 °C | A4S00 | 107.5 × 32.8 × 130 | 0.30 |
| AAI143‑S53/S1 | 4–20 mA | 16 | –20 °C to +70 °C | Loop-powered | 107.5 × 32.8 × 130 | 0.30 |
| AAI143‑S53/K4S00 | 4–20 mA | 16 | –20 °C to +70 °C | KS cable | 107.5 × 32.8 × 130 | 0.30 |
| AAI143‑S53/K4A00 | 4–20 mA | 16 | –20 °C to +70 °C | KS cable alt. | 107.5 × 32.8 × 130 | 0.30 |
| Model | Type | Channels | Input/Output | Interface | Temp Range | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| AAI543‑S53/A4S00 | Analog Output | 16 | Output | A4S00 | –20 °C to +70 °C | 107.5 × 32.8 × 130 | 0.30 |
| AAI143‑H50/A4S00 | Analog Input + HART | 16 | Input | A4S00 | –20 °C to +60 °C | 107.5 × 32.8 × 130 | 0.30 |
| AAI543‑H53/K4S00 | Analog Output + HART | 16 | Output | KS cable | –20 °C to +70 °C | 107.5 × 32.8 × 130 | 0.30 |
| AAI143‑H53/K4A00 | Analog Input + HART | 16 | Input | KS cable alt. | –20 °C to +70 °C | 107.5 × 32.8 × 130 | 0.30 |
| AAB841‑S00/A4S00 | Mixed I/O Module | 8 in / 8 out | In/Out | A4S00 | –20 °C to +60 °C | 107.5 × 32.8 × 130 | 0.30 |
Q1: What temperature range can the AAI143‑S53/A4S00 handle?
A1: It operates reliably between –20 °C and +70 °C.
Q2: How many input channels does it include?
A2: It includes 16 independently isolated analog input channels.
Q3: Does this model support HART communication?
A3: No. The S53 variant is analog-only. Use H53 versions for HART compatibility.
Q4: What type of interface does it use?
A4: It uses a pressure-clamp terminal block (A4S00) for secure wiring.
Q5: What is the device’s input accuracy?
A5: ±16 µA accuracy ensures high-fidelity analog measurements.
Q6: How often does it update data?
A6: The module updates signals every 10 ms.
Q7: What level of electrical isolation is provided?
A7: Input channels are isolated at 1500 V AC from the system base.
Q8: What is the module’s weight and size?
A8: It weighs 0.30 kg and measures 107.5 × 32.8 × 130 mm.
Q9: Can it provide powering to field transmitters?
A9: Yes, it supplies loop power up to 25 mA per channel.
Q10: Is the module suitable for high-temperature panels?
A10: Yes. It’s designed for reliable operation in panels up to +70 °C.
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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.
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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.