Vishay Nobel AST 3IS Signal Transmitter

Feature & Principle

It is an intrinsically safe strain gauge amplifier module manufactured by Vishay Nobel. It receives millivolt signal from load cell or strain gauge sensor, amplifies and conditions the weak signal, converts it into standard 4-20mA analog signal. IS version is designed for explosive hazardous zones, complies with intrinsic safety standard. It can be configured via deltaCOM software or local keys, supports multi-point calibration for weighing, tension and torque measurement systems.

Specifications

Model: AST 3IS Brand: Vishay Nobel Suitable sensor: Strain gauge load cell / force transducer Output: 4-20mA Power supply: 24VDC Safety type: Intrinsically safe (IS) Mounting: DIN rail Configuration: Local keys + deltaCOM serial software Application: Hazardous area batching scale, tension measurement, crane force monitoring Certification: ATEX, CE

Components & Diagnostics

Signal conditioning PCB, strain gauge excitation circuit, analog output circuit, status LED, plastic DIN rail housing. Common faults: signal drift, no current output, unstable reading, communication failure with configuration software.

Product Brief

AST 3IS strain gauge transmitter, Vishay Nobel weighing and force measurement spare widely used for hazardous area load cell overhaul and replacement.