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- Yokogawa
- AAI135-S00/K4A00
- Analog Input Module
- Japan
- 100 mm × 120 mm × 40 mm
- 0.3kg
- Xiamen, China
- New & In Stock
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Product Profile: AAI135‑S00/K4A00
Brand & Series
Brand: A trusted manufacturer of precision measurement instruments (name omitted as requested)
Series: AAI‑Series – a family of analog input modules known for reliability, clarity, and seamless integration in industrial systems.
Product Description
The AAI135‑S00/K4A00 is a high‑clarity analog input module that brings accurate, stable current measurement (4–20 mA) to eight channels. Designed with standard‑temperature specifications and robust electrical isolation, it is optimized for control systems and distributed automation platforms. Ruggedly built yet compact, it ensures consistent system performance with minimal complexity.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Model | AAI135‑S00/K4A00 |
| Dimensions (L × W × H) | 100 mm × 120 mm × 40 mm |
| Weight (kg) | 0.30 kg |
| Channels | 8 isolated analog input channels (4–20 mA) |
| Input Signal | 4 to 20 mA |
| Insulation Voltage | 500 V AC between input and system, isolated |
| Accuracy | ±16 µA |
| Operating Temperature | 0 °C to +60 °C |
| Communication | Analog only (no digital or HART overlay) |
| Mounting Option | Standard, with K4A00 terminal wiring interface |
Applications
This module shines in scenarios such as:
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Reliable analog signal acquisition from industrial field devices in DCS and PLC systems.
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Integration into compact I/O racks where precision and simplicity are key.
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Conventional control applications in process automation that require stable 4–20 mA readings.
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Environments within a standard industrial temperature range (0 °C to +60 °C).
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Systems benefitting from reduced complexity and high isolation without advanced communication overlays.
Advantages
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Sensible simplicity: Analog-only design, with no digital overlay, provides straightforward functionality.
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Accurate and stable: ±16 µA accuracy helps ensure dependable readings across all eight channels.
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Reliable isolation: 500 V AC separation between channels and system mitigates electrical interference risks.
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Compact format: At just 0.30 kg and 100 × 120 × 40 mm, it installs easily in dense module racks.
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Wiring flexibility: K4A00 terminal interface simplifies field wiring and modular replacement.
Related / Same‑Series Models
Here are five closely related or same‑series variants with key specifications:
| Model | Channels | Temp Range | Communication | Notes |
|---|---|---|---|---|
| AAI135‑S00 | 8 isolated | 0 °C to +60 °C | Analog only | Base model without specific interface |
| AAI135‑S00/K4B00 | 8 isolated | 0 °C to +60 °C | Analog only | Alternative terminal wiring scheme |
| AAI135‑S50/K4A00 | 8 isolated | 0 °C to +60 °C | HART overlay | Adds HART diagnostics capability |
| AAI135‑H00/K4A00 | 8 isolated | 0 °C to +60 °C | HART overlay | HART-enabled for field diagnostics |
| AAI135‑S00/13S00 | 8 isolated | 0 °C to +60 °C | Analog only | Pressure clamp terminal style |
Popular Models from Same Brand
Below are five widely used modules from the broader brand lineup:
| Model | Function | Channels | Special Feature |
|---|---|---|---|
| AAI541‑S00 | Analog input (standard) | 16 isolated | Higher channel density without HART |
| AAI543‑H00 | Analog output (HART) | 16 isolated | HART-enabled output module |
| AAI841‑H00 | Analog I/O (HART) | 8 in / 8 out, isolated | Mixed I/O capability with HART |
| AAI143‑S00 | Analog input (voltage type) | 16 channels, isolated | Broader signal format (voltage range) |
| AAB141‑S00 | Combo voltage/current input | 16 non‑isolated | Handles both signal types, compact |
10 FAQs (Q/A Format)
Q: What is the meaning of “S00” in this module?
A: It indicates a standard‑temperature, analog‑only input module without HART or digital overlay.
Q: How many channels does the module offer?
A: It provides eight isolated analog input channels for 4–20 mA signals.
Q: What are the module’s physical dimensions and weight?
A: The unit measures 100 mm × 120 mm × 40 mm and weighs 0.30 kg.
Q: How accurate are the measurements?
A: Accuracy is ±16 µA, ensuring reliable analog readings.
Q: What temperature conditions can it withstand?
A: Operational temperature ranges from 0 °C to +60 °C.
Q: What kind of isolation does it provide?
A: It offers 500 V AC isolation between inputs and system, as well as channel‑to‑channel isolation.
Q: Does it support HART communication?
A: No—this model supports analog input only, with no HART overlay.
Q: What terminal interface does it use?
A: It employs the K4A00 wiring interface for standard field wiring ease.
Q: What is beneficial about its design?
A: Its analog simplicity, high isolation, compactness, and clarity make it a practical, dependable solution.
Q: Can it be replaced or upgraded easily?
A: Yes—variants such as HART-capable or alternative wiring interface versions share the same footprint, enabling easy swaps.
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.