Configured for high-density signal acquisition in hazardous area control networks, the YOKOGAWA ASI133-H00 (ASI133-H00 Analog Input Module) provides direct physical signal interface with integrated intrinsic safety for Zone 1/Division 1 instrumentation.
| Model | Description |
|---|---|
| ASI133 | 8-Channel Analog Input Module |
| -H00 | Standard Configuration with HART pass-through |
| Parameter | Specification |
|---|---|
| Model | ASI133-H00 |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 0.5 kg |
| Dimensions | 3.8 cm x 12.7 cm x 15.2 cm |
| Operating Temp | -10 deg C to +55 deg C |
| Power Consumption | 150 mA @ 5 VDC, 450 mA @ 24 VDC |
| Input Channels | 8 isolated channels |
| Signal Type | 4-20 mA DC |
| Resolution | 16-bit |
| Accuracy | +/- 0.1% of span |
The ASI133-H00 features channel-to-channel and channel-to-system electrical isolation, which eliminates common-mode noise interference in complex field wiring layouts. By incorporating dedicated intrinsic safety (Ex i) barriers directly into the module architecture, the device maintains rigorous isolation from hazardous area potential. It supports full HART protocol transparency, allowing for seamless digital communication overlay on the 4-20 mA loop. This design enables real-time device diagnostics and remote parameter configuration without impacting the primary control loop's signal latency or integrity. Cold junction compensation is handled via the integrated signal conditioning circuitry, ensuring stability across the specified operating temperature range.
Q: Does the ASI133-H00 support field-side power supply for 2-wire transmitters?
A: Yes. The module provides a transmitter power supply (>= 16 VDC, max 20 mA per channel) required for powering 2-wire loops directly from the input terminals.
Q: Are the channels hot-swappable during system operation?
A: Maintenance procedures should strictly follow the specific system cabinet guidelines. While the module is designed for industrial durability, input loops must be verified as de-energized or set to "Maintenance Mode" in the DCS/SIS software prior to physical module extraction to avoid potential signal jumps.
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