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Annunciators & Scanners None

Annunciators & Scanners
Precision Digital’s annunciators and scanners feature alarm and monitoring capabilities for all of your process variables. Annunciators accept up to 8 signals from relays, float switches, digital outputs, and many other discrete (on/off) signal sources. Scanners can accept up to 8 analog inputs and switch between them to another devices such as a digital panel meter, controller, or PLC. One of the most common application for our scanners is bearing temperature monitoring and alarming. They can both be programmed for many common ISA alarm sequences including first out indication and provide alarm indication through front panel LEDs and a build in 85 dB horn. Custom printed message labels can be included with your order at no additional charge.

Annunciators & Scanners None

  • PDS178 Watchdog Scanner Temperature & Process System

    The PDS178 Watchdog Temperature Scanning & Alarming System brings together a popular combination of Precision Digital products: the Trident meter, the Minimux II scanner, and the PDA2821 NEMA 4X enclosure. The scanner automatically switches between up to eight (8) input signals (4-20 ma, ±10 V, TC, or RTD) and sends them to the Trident meter for display. Signal switching is done via DPST reed relays. The Watchdog can be used in a variety of temperature and process monitoring applications. A very common application for this system is to monitor bearing temperatures. The Trident meter included with this system is available with standard 0.56" (14.2 mm) high LED digits or large 1.2" (30.5 mm) high LEDs.