Industrial PI-300-D Programmable Logic Controller Module

PI 300 D Pirani measurement board for Pfeiffer Vacuum Balzers is a modular sensor board used inside Pfeiffer's TPG 300/TPG 500 vacuum gauge systems to deliver Pirani-based vacuum readings from two gauge heads. Identified by part numbers PT 546 920-T and PT546920-T, the PI 300 D is designed for two TPR 010/018 gauge heads and serves as the Pirani sensor interface feeding pressure data to the host controller. Pfeiffer's documentation places the PI 300 D among the PI 300 family of measurement boards and links PT 546 920-T to the PI 300 D configuration. This module supports Pirani-based vacuum measurement in industrial and research settings where multi-head gauge arrangements are employed, enabling integrated monitoring within Pfeiffer’s modular vacuum control ecosystem.