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ASI133-H00

The Yokogawa ASI133-H00 is an 8-channel isolated analog input module with built-in barrier. It is designed for acquiring 4–20 mA current signals in industrial control and automation systems. The module supports HART communication and provides high-accuracy measurement, fast response, and stable operation in harsh environments.

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Technical Specifications

Input Channels: 8 (isolated)

Input Signal: 4–20 mA

Allowable Input Current: up to 22.5 mA

Withstanding Voltage: 1500 V AC (field to system)

Input Resistance:

Power ON: 2-wire 400–750 Ω; 4-wire 485–925 Ω

Power OFF: ≥ 1 MΩ

Accuracy: ±16 µA

Step Response Time: 100 ms

Data Update Period: 10 ms

Transmitter Power Supply: ≥ 16 V DC (limited to 20 mA)

Max Input Voltage (4-wire): 25 V (normal mode)

Temperature Drift: ±16 µA per 10 °C

Current Consumption:

150 mA @ 5 V DC

450 mA @ 24 V DC

Weight: Approx. 0.30 kg

External Connection: Pressure clamp terminal

HART Communication: Supported

Barrier Type: Isolated interface with built-in barrier

Operating Temperature: –20 °C to +70 °C (ISA S71.04 Class G3 compliant)