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- Yokogawa
- AAI835-S00/K4A00
- Analog I/O Module
- Japan
- 48 mm (W) × 96 mm (H) × 110 mm (D)
- 0.4kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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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.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview: AAI835‑S00/K4A00
Product Parameters
| Parameter | Specification |
|---|---|
| Power Supply | 24 V DC; typical current draw ~320 mA; maximum ~360 mA |
| Input Signal | Single 4–20 mA two‑wire current‑loop input |
| Output Signal | SPDT relay (5 A at 250 V AC max) |
| Display | 5‑digit 7‑segment LED numeric readout |
| Accuracy | ±0.1 % of full scale; resolution 0.01 mA |
| Response Time | Approx. 200 ms to reach 90 % of a step change |
| Temperature Range | Operating: –10 °C to +55 °C; Storage: –25 °C to +70 °C |
| Protection Rating | IP front bezel rating: IP65 (dust‑tight, splashproof) |
| Calibration Method | Simple zero/span calibration via front-panel keys |
| Connection Interface | Rack-mounted modular K4 interface |
| Dimensions | 48 mm (W) × 96 mm (H) × 110 mm (D) |
| Weight (kg) | 0.40 kg |
Product Introduction
The AAI835‑S00/K4A00 is a compact, modular panel indicator designed to fit into rack-based distributed I/O systems via the K4 interface. Tailored for precise monitoring of a single 4–20 mA current‑loop signal, it offers a clear 5‑digit LED display and a relay output for alarm or control integration. Its slim profile, robust IP65 front, and easy calibration make it ideal for modern automation and control environments.
Applications
This module is well-suited for:
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Monitoring individual process signals within modular control rack systems
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Triggering alarms or control actions via relay when current thresholds are exceeded
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Retrofits of old panel meters into modern rack layouts for easy expansion
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Applications in water treatment, HVAC systems, manufacturing loops, or utilities
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Situations where remote central control requires local display and relay-driven feedback
Advantages
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Rack-ready integration — K4 interface enables quick plug-in of the module into standard backplanes.
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High readability — A crisp 5‑digit LED ensures process values are easy to read from a distance.
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Simple calibration — Front-panel zero/span keys allow fast adjustments without tools.
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Robust front panel — IP65-rated bezel offers protection from dust and water ingress.
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Compact and lightweight — Small dimensions and 0.40 kg weight make for efficient panel use.
Brand & Series
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Brand: A renowned maker of industrial instrumentation, respected for reliable analog indicators and modular equipment.
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Series: Falls under the AAI835 family, specifically the S‑type subgroup designed for 4–20 mA input with relay output, now adapted for the K4 modular rack standard (K4A00 suffix).
Related & Popular Models
A. Same Series / Related Models
| Model | Input Type | Output Feature | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| AAI835‑S00 S2 | 4–20 mA | SPDT relay | 48 × 96 × 110 | 0.45 |
| AAI835‑S00 M2 | 4–20 mA | Retransmit 4–20 mA | 48 × 96 × 110 | 0.50 |
| AAI835‑H00 S2 | 4–20 mA | SPDT relay (H-series) | 48 × 96 × 110 | 0.45 |
| AAI835‑S00 S3 | 0–10 V | SPST relay + analog output | 48 × 96 × 110 | 0.45 |
| AAI835‑S00 D0 | Dual 4–20 mA loops | Dual relay outputs | 96 × 96 × 110 | 0.75 |
B. Other Popular Models from the Same Brand
| Model | Notable Feature | Typical Use Case | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| AAA990‑C01 | LCD display with alarms | Operator interface | 96 × 48 × 100 | 0.55 |
| ABX770‑B22 | Touch-panel universal input | Process visual control | 144 × 144 × 60 | 0.90 |
| ACC510‑A05 | Compact scrolling LED | Flow meter display | 48 × 48 × 70 | 0.30 |
| ASS310‑D10 | Hand‑held thermocouple module | Portable readout & logging | 160 × 80 × 30 | 0.40 |
| AVP200‑E20 | Ethernet-enabled panel display | Advanced networked control | 192 × 96 × 50 | 1.20 |
Frequently Asked Questions (QA Format)
-
Q: What does the AAI835‑S00/K4A00 measure?
A: It measures a single 4–20 mA two‑wire current‑loop input. -
Q: How accurate is it?
A: It offers high accuracy at ±0.1 % of full scale, with 0.01 mA resolution. -
Q: What output does it provide?
A: It provides a SPDT relay output rated at 5 A and 250 V AC. -
Q: What display does it use?
A: It features a 5‑digit, 7‑segment LED display for numerical feedback. -
Q: How durable is its front panel?
A: The front CPU bezel is rated IP65—resistant to dust and splashing liquids. -
Q: How do you calibrate the unit?
A: Front-panel keys allow direct zero and span calibration without external tools. -
Q: How is it mounted?
A: It mounts via a K4 rack interface, ideal for modular control systems. -
Q: What are its dimensions?
A: Clearly compact at 48 mm wide, 96 mm tall, and 110 mm deep. -
Q: What is its weight?
A: Light at approximately 0.40 kg. -
Q: What does “K4A00” indicate in the model?
A: It denotes the rack-compatible K4 interface variant for convenient plug-in deployment.
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.