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PT750-XP Annunciator Download Datasheet

PT750-XP Remote Annunciator

Features

  • Nema 7 Explosion Proof Enclosure
  • Large Graphic display with backlight
    (240 x 128 Pixels)
  • Optional Historical data Logging with Real time clock calendar
  • Digital 2 way communication with main control panel using RS485 Serial I/O
  • Programmable sensor location or tags
  • Relays contacts for Low, High and sensor fail alarms.
  • Optional Wireless Radio Interface Module or Fiber Optics data converter for noisy environment.
  • Reset / Bypass alarm of main control panel using front panel switches.

Description

Model PT750 Annunciator collects sensor data from all the control modules in a 900 Series Gas Control panel. Communication is RS485 half duplex between the annunciator and the control panel using a single pair twisted data cable. Maximum length of the cable is 4000 feet.

For noisy environment an optional Fiber Optics data converted is used to transmit and receive data over fiber optics cable. On board are 3 alarm relay contacts. The relays are activated whenever the main control panel is in alarm. Each channel / sensor can be programmed to have a sensor tag identifying each sensor with its location. Furthermore, using the switches on the front panel the alarms on the main control panel can be Reset or Bypassed.

Specifications

  • Enclosure
    • Nema 7 Explosion Proof Enclosure with
      viewing window.
    • Class I Div 1 Hazardous Locations.
  • Operating Temperature
    • -50°C to +85°C
  • Operating Humidity
    • 15% to 90% RH, non-condensing
  • Display
    • 240 x 128 Pixels Graphic Display with back light
  • Communication Ports
    • RS232 Serial port to program location tags. RS485 for communication with Control Panel
  • Enclosure Dimension
    • Length: 14 inches
    • Width: 12 inches
    • Height: 7 inches
  • Historical data Logging
    • Historical Alarm / Event Log with date and time stamp. Maximum of 300 Event log records. Data download to laptop computer using Windows Hyper Terminal utility program
  • Optional Radio Interface Module
    • 900 MHz Spread spectrum ratio for wireless communication
  • Other Options
    • Purge Kit (pressurized Enclosure) for use in Hazardous Area.
    • Fiber Optics data converter for communication using fiber optics cable for noisy environment.
  • Alarm Relays
    • Three (3) Each Form "C" type relays
    • Rated at 5 Amps AC/DC
  • Input Power
    • 18 - 28 Volts DC
    • Optional AC/DC power Supply
  • Power Consumption
    • < 2.5 Watts Nominal
    • 3.5 Watts maximum
  • Serial Interface
    • RS-485 MODBUS RTU at 9600 Baud.

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