Product Description
🔹 General Information
|
Manufacturer |
Yokogawa |
|---|---|
|
Model/Part Number |
AAI835-S50 |
|
Description |
Analog I/O Module (4–20 mA, 4-channel input/4-channel output, Isolated Channels) |
🔹 Description
The AAI835-S50 is a high-performance Analog I/O Module designed for 4 inputs and 4 outputs of 4–20 mA signals, with channel-to-channel and system isolation. It is ideal for applications requiring dual-redundant configurations and robust analog signal handling. The module supports HART communication and is equipped with precise detection and signal output control.
🔹 Technical Specifications
|
Item |
Specification |
|---|---|
|
Model |
AAI835 |
|
Number of I/O Channels |
4-channel input / 4-channel output, all isolated |
|
I/O Signal |
Input: 4 to 20 mAOutput: 4 to 20 mA |
|
Allowable Input Current |
25 mA |
|
Allowable Load Resistance |
0 to 750 Ω (output only) |
|
Withstanding Voltage |
500 V AC (1 minute) between I/O and system, and between channels |
|
Input Resistance (Power ON) |
290 Ω (at 20 mA) to 450 Ω (at 4 mA) |
|
Input Resistance (Power OFF) |
500 kΩ or larger |
|
Circuit-Open Detection |
Output: < 0.65 mA |
|
Accuracy |
Input: ±16 µAOutput: ±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 |
|
Max Current Consumption |
360 mA (5 V DC), 450 mA (24 V DC) |
|
Weight |
0.3 kg |
|
External Connections |
Pressure clamp terminal, MIL connector cable, KS1 cable |
|
HART Communication |
Available |
🔹 Suffix Codes
|
Code |
Description |
|---|---|
|
-S |
Standard type |
|
-H |
With HART digital communication |
|
5 |
Without explosion protection |
|
E |
With explosion protection |
|
0 |
Basic type |
|
3 |
ISA Standard G3 compliant, -20 to 70 °C temp |
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🔹 Option Codes
|
Code |
Description |
|---|---|
|
/B3A00 |
KS Cable Interface Adapter [ATB3A-00] |
|
/K4A00 |
KS Cable Interface Adapter [ATK4A-00] |
|
/13S00 |
Pressure Clamp Terminal Block for Isolated Analog [ATI3S-00] |
|
/13S10 |
Pressure Clamp Terminal Block with Surge Absorber [ATI3S-10] |
|
/13D00 |
Dual Pressure Clamp Terminal Block for Isolated Analog [ATI3D-00] |
|
/13D10 |
Dual Pressure Clamp Terminal Block with Surge Absorber [ATI3D-10] |
|
/CCC01 |
Connector Cover for MIL Cable [ACCC01] |