Product Description
🔹 General Information
|
Manufacturer |
Yokogawa |
|---|---|
|
Model/Part Number |
AAI835-H53 |
|
Description |
Analog I/O Module (4 to 20 mA, 4ch Input / 4ch Output, Isolated, with HART, G3 and -20 to 70 °C support) |
🔹 Description
The AAI835-H53 is a high-performance current I/O module with 4 isolated input channels and 4 isolated output channels supporting 4 to 20 mA signals. It includes HART communication support, and the -53 suffix indicates it’s equipped with ISA Standard G3 coating and is capable of operating in extended temperature ranges from -20 to 70 °C. The module provides channel-to-channel isolation, is field-to-system isolated, and is suited for dual-redundant configurations.
🔹 Technical Specifications
|
Item |
Specification |
|---|---|
|
Model |
AAI835 |
|
I/O Channels |
4-channel input / 4-channel output (each isolated) |
|
Signal Type |
Input: 4–20 mAOutput: 4–20 mA |
|
Allowable Input Current |
25 mA |
|
Allowable Load Resistance (OUT) |
0 to 750 Ω |
|
Circuit-Open Detection |
Less than 0.65 mA (output side) |
|
Input Resistance (Power ON) |
290 Ω (at 20 mA) to 450 Ω (at 4 mA) |
|
Input Resistance (Power OFF) |
≥ 500 kΩ |
|
Withstanding Voltage |
500 V AC (1 min) between input/output and system, and between channels |
|
Accuracy |
Input: ±16 µAOutput: ±48 µA |
|
Data Update Period |
10 ms |
|
Transmitter Power Supply |
15.0 V (at 20 mA) to 29.3 V (at 0 mA), current limit 25 mA (input side) |
|
Temperature Drift |
±16 µA per 10 °C |
|
Maximum Current Consumption |
360 mA (5 V DC), 450 mA (24 V DC) |
|
Weight |
0.3 kg |
|
External Connection |
Pressure clamp terminal, MIL connector cable, or KS1 dedicated cable |
|
HART Communication |
Available (due to H suffix) |
|
Environmental Capability |
With ISA G3 coating, operating temperature: -20 to 70 °C |
🔹 Suffix & Option Code Breakdown
|
Code Type |
Code |
Description |
|---|---|---|
|
Suffix |
-H |
With digital communication (HART protocol) |
|
-5 |
No explosion protection |
|
|
-3 |
With ISA Standard G3 conformal coating and extended temperature (-20 to 70 °C) |
|
|
Option |
(Not specified) |
Can be combined with terminal options such as:/13S00, /13D00, /K4A00, etc. |
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