Untitled Document
Untitled Document
Enquiry
Fixed Gas Monitors
Products / Fixed Gas Monitors
MOdel 84
Special Features
  • 4 – 20mA Input.
  • Features Self Integrity Check.
  • Fast and Accurate Response.
  • Solid State Electronics.
  • Two Alarm Levels.
  • Recorder Output.
  • Un – Attended Operation.
  • Modular Plug In Design Including Modular.
  • Power Supply.
  • Compatible with All Types of Transmitter.
  • 220 Volts / or DC Operation. The Model 8420 X is a microprocessor based fixed gas detection system designed to accept the input from remotely located Oxygen, Combustible or Toxic detector transmitters. The system is designed to provide continuous round the clock monitoring
  • Model 84
    Model 8420
    for a variety of common atmospheric hazards. It utilizes a point to point writing architectures whereby each detector head, alarm / shutdown device and remote system is individually wired to the control unit. This is best choice for small systems, typically less than 20 points, where the sensors are located in relative close proximity to the central control unit.
    The system is designed for easy expansion by means of plug in sensor modules. Remote 98 series transmitters are available in non explosion proof or explosion proof versions. Both versions can be with or without digital readouts.
    The systems includes built in digital readouts at the controller. Other standard features include two independently adjustable alarm set points per channel, bright LED alarm light indicators and relay contacts for fault, low and high alarm conditions; common and channel specific 4-20mA analog outputs for communicating sensor data to other systems.
    Endee Model 8420 X rack / panel mount control enclosure along with Micro controller based digital control modules is designed to serve as a host control system for remote mount gas detection sensor transmitters. The single channel modular designed can be configured for any combination of gases. All control modules are plug in front panel accessible for easy maintenance and repair. A "Blank Plate" can be installed on any unused channel until that channel is needed at some future date.
    The Model 8420 X includes an integral and modular power supply, three digit indicator serves as both a power on indicator and a direct reading display of the gas concentration. Alarm set points are software adjustable in 1 PPM / % increments across the range of detection. The reset switch reseta all alarm relays.
    Specifications
  • Input
  • 4-20 mA current Loops
  • Displays
  • Red LED - 3 digit 7 segment for gas level.
  • Indications
  • Low alarm. High alarm, Fault
  • Alarm Reset
  • Is accomplished via an Integral or remote switch.
  • Electrical Classifications
  • NEMA 1 panel mount
  • Capacity
  • Up to 8 single channel control modules
  • Power Input
  • 220 VAC Standard / 24 VDC Optional
  • Power Consumption
  • <5 watts per channel (includes gas sensor transmitter and control module)
  • Outputs
  • Linear analog 4-20 mA DC, 24 volt DC, Serial Rs-485/ 232, Discrete relays for fault, low and high alarm
  • Operating Temperature
  • -10°Cto55°C
  • Humidity Range
  • 0 to 95% RH, non-condensing
  • Dimension
  • 3U 19" Rack
  • Warranty
  • One year except batteries, Sensor one year in air.
    Specifications
    Gases
    Ranges
    Gases
    Ranges
    Hydrogen
    0- -100 to 2000 PPM
    Hydrogen Sulphide
    0-5 to 2000 PPM
    Chlorine
    0- • 3 to 2000 PPM
    Nitric Oxide
    0-100 1000 PPM
    Bromine
    0- • 3 to 2000 PPM
    Nitrogen Dioxide
    0-30 to 100 PPM
    Fluorine
    0- •1 to 10 PPM
    Ammonia
    0-300 PPM
    Hydrogen Chloride
    0- •5 to 15 PPM
    Org. Solvents/Vapours
    Depending on Solvents
    Hydrogen Fluoride
    0- • 5 to 15 PPM
    Oxygen
    0 - 30% to 100%
    Hydrogen Cyanide
    0 •10 to 100 PPM
    LPG/CNG/H2
    0-100%LEL
    Carbon Dioxide
    0- • 05% to 20%
    Combustible Gases
    0 -100% V/V
    Carbon Monoxide
    0- •50 to 4000 PPM
    Sulphur Dioxide
    0- •10 to 2000 PPM
    The above Parameter and Ranges are only indicative. Endee will build up and supply the analyser with Parameters, range and features to any Practical Configuration.

    Note : Specifications and Features wil 1 vary with application. The above are established and validated during design, but are not to be construed as test criteria for every product. Due to endee's commitment to research, design and product improvement, specifications are subject to change without notice

    Untitled Document