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- Yokogawa
- AAI835-H00/K4A00
- Analog I/O Module
- Japan
- 107.5 mm × 32.8 mm × 130 mm
- 0.3kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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- 24-Hour Service
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview: Yokogawa AAI835‑H00/K4A00
The AAI835‑H00/K4A00 is an analog I/O module designed for distributed control systems, featuring 4 isolated analog inputs and 4 isolated analog outputs (4–20 mA signals). It includes HART digital communication support and comes with a KS Cable Interface Adapter for robust field wiring. Built for high accuracy and isolation, this module is ideal for critical industrial environments where signal integrity is paramount.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AAI835‑H00/K4A00 |
| I/O Channels | 4‑channel input / 4‑channel output (isolated) |
| Signal Type | 4–20 mA DC for both input and output |
| HART Support | Yes (digital communication overlay on analog lines) |
| Cable Interface | KS Cable Interface Adapter included |
| Input Resistance (Power ON) | ~290 Ω @20 mA to ~450 Ω @4 mA |
| Allowable Input Current | Up to 25 mA |
| Withstanding Voltage | 500 V AC between I/O and system, and between channels |
| Accuracy | ±16 µA (input); ±48 µA (output) |
| Data Update Interval | ~10 ms |
| Drift Due to Ambient Temperature | ±16 µA per 10 °C |
| Power Consumption | ~450 mA @24 V DC (approx. 10.8 W) |
| Mounting Type | Rack-mounted via module base |
| Operating Temperature Range | Standard industrial range |
| Weight | 0.2 kg |
Product Applications
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High-demand analog control loops in petrochemical and refining
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Process instrumentation in chemical and pharmaceutical facilities
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Hybrid analog–digital process setups leveraging HART sensors
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Upgrading legacy 4–20 mA systems with modern communication capabilities
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Compact analog I/O consolidation in distributed automation racks
Advantages
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HART-enabled mix of analog and digital signals enables rich diagnostics
-
High isolation ensures robust performance in electrically noisy environments
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Compact 4‑in/4‑out design saves rack space while maintaining flexibility
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Accurate analog processing (±16 µA / ±48 µA) supports tight control
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Strong environmental tolerance with wide operating temperature and voltage margins
Related or Similar Models (Same Series)
| Model | I/O Channels | HART Support | Cable Option | Weight (kg) |
|---|---|---|---|---|
| AAI835‑H00/K4A00 | 4 in / 4 out | Yes | KS Cable interface | 0.2 |
| AAI835‑S00/K4A00 | 4 in / 4 out | No | KS Cable interface | 0.2 |
| AAI835‑H50/K4A00 | 4 in / 4 out | Yes | KS Cable interface | 0.2 |
| AAI835‑S50/K4A00 | 4 in / 4 out | No | KS Cable interface | 0.2 |
| AAI135‑H00/K4A00 | 8 inputs only | Yes | KS Cable interface | 0.3 |
Other Popular Yokogawa Modules (Same Brand)
| Model | Function | Channels | Weight (kg) |
|---|---|---|---|
| AAI835‑H00/K4A00 | Analog I/O (4‑in, 4‑out, HART) | 4 / 4 | 0.2 |
| AAI543‑H50 | Analog output (16 ch, HART) | 16 out | ~0.3 |
| AAI143‑H00 | Analog input (16 ch, HART) | 16 in | ~0.3 |
| AAI841‑S00 | Analog I/O (8 in, 8 out) | 8 / 8 | ~0.3 |
| ADV151 Digital Input | Digital input module | N/A | ~0.2 |
Frequently Asked Questions (FAQ)
Q1: How many analog channels are on the AAI835‑H00/K4A00?
A1: It has 4 isolated analog inputs and 4 isolated analog outputs.
Q2: Does this module support HART communication?
A2: Yes, it includes HART digital protocol on its analog lines.
Q3: How well is the module isolated?
A3: It is isolated 500 V AC between inputs, outputs, and the system base.
Q4: What are the signal accuracy limits?
A4: Input accuracy is ±16 µA; output accuracy is ±48 µA.
Q5: Is there a special cable interface included?
A5: Yes, the module comes with a KS Cable Interface Adapter.
Q6: Can it handle industrial temperature variations?
A6: Yes, it’s designed for standard industrial operating ranges.
Q7: What is the power requirement?
A7: Approximately 450 mA at 24 V DC (around 10.8 W consumption).
Q8: Is the module compact and lightweight?
A8: Yes, it weighs about 0.2 kg and fits standard baseplates.
Q9: How fast are the analog updates?
A9: Updates occur approximately every 10 ms.
Q10: How does temperature affect accuracy?
A10: Drift is about ±16 µA per 10 °C change.
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.