Product Description
The AAI835-H53 is a high-performance hybrid I/O module for the Yokogawa CENTUM VP series. It combines 4 isolated current input channels and 4 isolated current output channels in a single compact module, providing a versatile interface for small or remote control loops.
The H53 designation indicates a ruggedized build, featuring:
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ISA Standard G3 conformal coating for protection against corrosive gases
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Extended operating temperature range from -20 to 70 °C
This module supports bi-directional HART communication, enabling the DCS to read secondary variables, monitor device status, and perform remote diagnostics on intelligent field instruments and valve positioners. Its dual-function design and compact footprint make it ideal for space-constrained FIO nodes in challenging industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| I/O Configuration | 4-channel input / 4-channel output, isolated |
| Signal Range | 4–20 mA DC (input and output) |
| Digital Communication | HART protocol (bidirectional on all channels) |
| Environmental Protection | ISA G3 conformal coating (corrosion resistant) |
| Operating Temperature | -20 to 70 °C |
| Signal Accuracy | ±0.1% of span |
| Isolation Voltage | 1500 V AC (field signals to system logic) |
| Data Update Cycle | 10 ms |
| Dimensions (W × H × D) | 22 × 181 × 127 mm |
| Weight | 0.18 kg |
Application Scenarios
The AAI835-H53 is ideal for localized control loops where both input and output channels are required in a compact form:
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Wellhead control systems in oil and gas facilities
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Chemical injection loops
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Small-scale water and wastewater treatment systems
The G3 conformal coating protects against corrosive gases such as Hydrogen Sulfide (H₂S) and Chlorine, while the extended temperature range supports outdoor or unconditioned enclosures.
Frequently Asked Questions
Q: Does the AAI835-H53 support redundant configurations?
A: Yes. It is compatible with dual-redundant FIO node baseplates, allowing seamless failover without interrupting process control.
Q: What is the benefit of the hybrid Input/Output design?
A: Combining inputs and outputs in a single module reduces the number of modules required, saves backplane slots, and lowers overall system cost for small control loops.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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