Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 | |||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China |
Technical Specifications
The following table provides the key parameters for the Yokogawa AAI835 Analog I/O Module, which features 4 isolated input and 4 isolated output channels supporting 4–20 mA signals.
| Item | Specification |
|---|---|
| Model | AAI835 |
| Number of Channels | 4-channel input / 4-channel output, isolated channels |
| Signal Type | Input: 4 to 20 mA DC Output: 4 to 20 mA DC |
| Allowable Input Current | 25 mA |
| Allowable Load Resistance | 0 to 750 Ω |
| Circuit-Open Detection | Less than 0.65 mA |
| Input Resistance (Power ON) | 290 Ω (at 20 mA) to 450 Ω (at 4 mA) |
| Input Resistance (Power OFF) | 500 kΩ or larger |
| Accuracy | Input: ±16 µA Output: ±48 µA |
| Data Update Period | 10 ms |
| Transmitter Power Supply | 15.0 V or higher (at 20 mA) 29.3 V or less (at 0 mA) |
| Temperature Drift | ±16 µA/10 °C |
| Withstanding Voltage | 500 V AC, 1 min (system to channel & channel to channel) |
| HART Communication | Available |
| Maximum Current Consumption | 360 mA (5 V DC), 450 mA (24 V DC) |
| External Connection | Pressure clamp terminal, MIL connector cable, KS1 cable |
| Dimensions (H × W × D) | 107.5 × 32.8 × 130 mm |
| Weight | 0.3 kg |
FAQ
Frequently Asked Questions (FAQ)
Q1: What type of signals does the AAI835 module support?
A1: The AAI835 supports 4 to 20 mA DC signals for both input and output.
Q2: Are the input and output channels on the AAI835 electrically isolated?
A2: Yes, all input and output channels are fully isolated from each other and from the system.
Q3: Can the AAI835 module be used in a dual-redundant configuration?
A3: Yes, the AAI835 is designed for use in dual-redundant systems for enhanced reliability.
Q4: What is the accuracy of the AAI835 module?
A4: The input accuracy is ±16 µA and the output accuracy is ±48 µA.
Q5: Does the AAI835 module support HART communication?
A5: Yes, HART communication is supported when the module is installed in compatible ER bus node units.
Q6: What is the allowable load resistance for the output channels?
A6: The output channels support load resistances ranging from 0 to 750 Ω.
Q7: What kind of external connections are available for the AAI835?
A7: It supports pressure clamp terminals, MIL connector cables, and dedicated KS1 cables.
Q8: What precautions should be taken regarding intrinsic safety?
A8: Zener barriers must not be used. For intrinsically safe applications, isolation barriers should be applied.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
