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Annunciators, Scanners & Multi-Channel Process Controller

Annunciators are panel mounted devices that monitor discrete inputs and offer visual indication and an audible alarm if an input alarm state is detected. A scanner allows one other meter to display multiple process or temperature inputs.

1. Vigilante® II Alarm Annunciators

  • All common ISA sequences including first-out.
  • Switch, transistor, and lgic level inputs.
  • Free custom message labels.
  • AC or DC power.
  • NEMA 4X, IP65 front.
  • Built-in 85 dB horn.
  • 2 SPDT relays for alarm activated devices.
  • Silence, acknowledge, and reset functions.
  • LED self-test with power up.
  • Shallow depth 1/8 DIN case.
Products: PD154 & PD158 VIGILANTE® II.
Data Sheet   Video Demo

2. PD138 MINIMUX II Temperature and Process Scanner

  • Thermocouple, RTD, process, AC & DC inputs.
  • 8 inputs (double-pole reed relays).
  • Unlimited number of units per system.
  • Adjustable dwell time for each channel.
  • Independent alarm input for each channel.
  • User initiated full set-test.
Data Sheet   Video Demo

3. PDS178 & PDS178X2 Watchdog Scanning & Alarm Systems
The Watchdog is a kit that includes a PD765-6R2-00 or PD765-6X2-00 Trident and PD138-3 Minimux II in a PDA2821 NEMA 4X enclosure. The Watchdog is a Temperature Scanning and Alarm System ready to wire into your application.


  • 4-20 ma, ±10 V, TC & RTD Inputs.
  • 4-Digit Display.
  • Two Relays for Alarm Signal to PD138.
  • NEMA 4X, IP65 Front.
  • Sunlight Readable Display.
Data Sheet
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