100% Genuine. 100,000+ Parts in Stock. Ready to Ship.

  • en

YOKOGAWA ASI133-H00 Analog Input Module

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.

Suffix Breakdown & Model Matrix

Model Description
ASI133 8-Channel Analog Input Module
-H00 Standard Configuration with HART pass-through

Hardware Specifications

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

Process Control and Signal Isolation

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.

Frequently Asked Questions (FAQ)

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.

Field Installation Guidelines

  1. Grounding: To ensure the efficacy of the built-in intrinsic safety barriers, the module chassis must be connected to a high-integrity instrument earth ground. Ensure impedance to ground is within specified limits.
  2. Wiring: Use shielded twisted-pair cables for signal runs. Terminate cable shields at the designated ground bar near the entry point of the cabinet to minimize EMI/RFI ingress.
  3. Hazardous Area Separation: Maintain rigid separation between intrinsically safe (IS) wiring and non-IS wiring. Keep cables bundled in separate trays or conduits to prevent cross-coupling of high-energy transients.
  4. Thermal Management: Given the power consumption characteristics, ensure the module is installed in a rack with sufficient vertical clearance to allow for passive convection airflow, preventing localized hotspots.

What's clients say about us

Translation missing: en.general.search.loading