PDS178 Watchdog Scanner Temperature and Process System

Brand: Precision Digital Corporation

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 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.
Features
  • Fully-approved Explosion-proof Meter
  • 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Field Selectable Inputs with ±0.03% Accuracy
  • Dual-Line 6-Digit Display, 0.6" / 15 mm and 0.46" / 12 mm
  • SafeTouch Through-glass Button Programming
  • Display Mountable at 0°, 90°, 180°, & 270°
  • Isolated 24 VDC at 25 mA Transmitter Power Supply
  • Easy Field Scaling in Engineering Units without Applying an Input
  • 4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option
  • Free PC-Based, On-Board, MeterView Pro USB Programming Software
  • SunBright Display Standard Feature; Great for Outdoor Applications
  • Operating Temperature Range: -40 to 60°C / -40 to 140°F
  • FM Approved as Explosion-proof / Dust-ignition-proof / Flame-proof
  • CSA Certified as Explosion-Proof / Dust-ignition-proof / Flame-proof
  • ATEX and IECEx Certified as Flame-proof
  • Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC
  • Display Input in Two Different Scales Simultaneously - Great for Level Applications
  • Multi-pump Alternation Control
  • Round Horizontal Tank Function; Just Enter Diameter and Length
  • 32-Point Linearization, Square Root Extraction and Programmable Exponent Function
  • Password Protection
  • Programmable Display, Function Keys and Digital Inputs
  • Flanges for Wall or Pipe Mounting
  • Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum Enclosure
  • On-Board RS-485 Serial Communications
  • Modbus® RTU Communication Protocol Standard
  • Four 3/4" NPT Threaded Conduit Openings - Two Plugs Installed
  • Pipe Mounting Kits
  • Stainless Steel Tag Available
  • 3-Year Warranty

Specifications

Product Type

  • Temperature Scanning and Alarm System
  • Temperature Scanning and Alarm System with Large Display

Display Options

  • 0.56” High, 4 Digits, Red LED
  • 1.2” High, 4 Digits, Red LED

Output Options

  • 2 Relays

  • Scan Thermocouples

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