Gas Controller

Four-Channel Controller Central Gas Monitoring Controller MODBUS Gas Detection System Controller Stainless Steel AC/DC Controller
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Fixed Type Gas Monitor

4-20 mA Transmitter Gas Point I.S. Plant Rat

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Four-Channel Controller

Model: CR-4000

Entirely self-contained, the CR-4000 4-channel, 4-20mA, AC/DC controller provides continuous uninterrupted monitoring and of toxic gases, combustibles and oxygen hazards. The CR-4000 delivers 24 VDC power to any
4-20 mA transmitter.

Application-focused, solution-orientated and competitively priced, the CR-4000 will meet
your needs today and in the
future. Flexibility is built-in
for easy adaptation to
changing requirements.

Features

  • Individual continuous alphanumeric status LCD
    for each channel
  • Slim profile-- only 2.4 inches (6.35 cm) deep
  • Easy installation simply hang on the wall, connect the power (AC or DC) and gas transmitters
  • Local 85 dB audible alarm
  • Extensive system fault diagnostics
  • Programmable alarm levels on each channel
  • Mix, match, or change the gases monitored
  • Three common, 10-amp SPDT relays (standard)
  • LOW, HIGH and fault alarms

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Central Gas Monitoring Controller

Model: CR-8700

Features:

The CR-8700 is a central control system designed to link various gas detectors featuring a 4-20 mA interface to a central monitoring location.

  • Continuous monitoring, displaying gas concentraions in ppm, % LEL or % volume
  • Visual (included) and audible (optional) alarm indicators, as well as relay outputs for general alarms and system faults
  • Connect 2-wire or 3-wire 4-20 mA transmitters
  • User programmable dual level concentraion alarms
  • Alarm modules feature an electronic alarm check and a pre-adjusted alarm delay to avoid false alarms
  • A 19 inch pre-wired rack makes for easy installation of plug-in alarm modules
  • High-speed response
  • 2 year warranty

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MODBUS Gas Detection System Controller

Model: CR-9600

Features:

For continuous monitoring and control of toxic gases, combustible gases and oxygen hazards, the CR-9600 is designed for installation and operational simplicity.

  • Heavy duty cast aluminum housing
  • Continuous, alphanumeric ˇ§statusˇ¨ LCDˇX122x32 dot matrix display
  • Easy installation - simply hang on the wall, connect the power (DC) and gas transmitters
  • Local 65 dB audible alarm
  • Field programmable alarm levels for each transmitter
  • Simple operation
  • Mix, match or change the gases monitored
  • Four common relays. 5 amp DPDT relays for Fault, Low, High and High/High alarms
  • Visual indicators and audible alarm
  • Simultaneously control up to 96 transmitters and relay modules
  • Automatic quick self-test and warm-up
  • Zoning capabilityˇXup to 126 zones, maximum 96 tranmitters/zone
  • Datalogging capability

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Stainless Steel AC/DC Controller

Model: RRJ-4000

Designed for easy installation and simple operation, the 4-channel RRJ-4000 AC/DC controller is compatible with any 4-20 mA transmitter.

Application-focused, solution-orientated and competitively priced, the RRJ-4000 will meet your needs today and in the future. Flexibility is built in to easily adapt to changing requirements.

Each channel's preprogrammed switches
set and/or change gas type, measuring range, alarm level, relay function and power (115/230 VAC, 24 VDC) or solar.

Features

  • Rugged, stainless steel construction
  • Individual LCD readouts for each channel
  • Security key lock control
  • Optional alarm bar
  • Built-in audible alarm
  • Pushbutton reset switch
  • Four (4) LCDs--individual continuous alphanumeric status LCD for each channel
  • Four (4) common 10-amp SPDT relays
  • 85 dB local audible alarm
  • AC/DC, solar power input
  • Multifunctional external reset
  • Accepts any 4-20 mA gas transmitter
  • Optional visual alarm bar

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4-20 mA Transmitter

Model: CD-420

The CD-420 4-20 mA two-wire transmitter continuously monitors for toxic gas or O2 hazards in ambient air. Engineered with field-proven sensing and instrument technology, the CD-420 provides reliable early hazard warnings at an affordable price.

Advanced micro-power electronics deliver superior performance, eliminating false alarms and providing a direct linear output for compatibility to existing control systems. With a faster response
time, the CD-420 provides reliable early hazard warnings at an
affordable price. Add a duct mount kit or sensor separation kit
with ease.

Features

  • Direct linear 4-20 mA output with a wide supply voltage range (12 to 35 volts DC)
  • Plug-in electrochemical sensor
  • Diagnostic signal transmission during system faults or
    sensor degradation
  • Field-selectable gases and measuring ranges
  • Power-up delay that eliminates startup alarms
  • Failure/brownout protection

CO, H2S, NO, CL2, NH3, SO2, HCN, O2  

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GasPoint

4-20 mA Gas Transmitters

The self-contained GasPoint transmitter with internal alarm relays provides a 4-20 mA output signal and can be connected to any control system (DCS, PLC or controller). With advanced sensor technology and microprocessor-based operation, GasPoint provides continuous monitoring for H2S, CO or combustibles.

GasPoint's ease of use and cost of ownership advantages make it the ideal fixed system transmitter. No junction box connection is required, and sensors can be changed at will. GasPoint
will recognize the type of sensor installed, test it
and reset itself to the corresponding sensor type.

Features

  • Non-intrusive, one-person automatic calibration via single external pushbutton
  • Equipped with three (3) 5-amp relay contacts--two (2) alarms and one (1) fault
  • Normally energized/de-energized and latching/non-latching alarm relay functions
  • Two (2) backlit alphanumeric LCDs advise all gas
    hazards and operational faults, as well as instrument
    and sensor statuses
  • Auto zero and auto span functions
  • Backlight in low light (auto) and in alarm (auto)
  • Extensive fault diagnostics

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Self-Test

  • Full function sensor integrity test (daily; auto)

H2S, CO, Combustibles  

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I.S. Plant Rat

4-20 mA Transmitters

The I.S. Plant Rat is engineered to provide the ultimate in protection from toxic gases and O2 deficiency/enrichment. Its intrinsically safe design ensures maximum flexibility in volatile environments.

Powered by a two-wire loop, the I.S. Plant Rat features a direct linear output for universal compatibility. Modular plug-in components make it simple to change gases monitored, adjust measuring ranges and add a sensor separation kit or duct mount kit.

With greater accuracy, a faster speed of response and a stable zero, the I.S. Plant Rat provides increased reliability and unrivalled early hazard warning.

Features

  • Non-intrusive, one-person calibration
  • Direct linear 4-20 mA output with a wide supply voltage range (12 to 35 volts)
  • Backlit LCD readout
  • Intrinsically safe--sensor and electronic modules can be changed or serviced under power
  • Exterior hinged door for non-intrusive calibration
  • Inhibited output during calibration and startup (prevents
    false alarms)
  • Automatic reset (failure/brownout protection)
  • Two-part modular enclosure
  • Lower operating, maintenance and installation costs

O2, H2S, CO, SO2, NH3, HCN, NO2, HCL, C2H6O, C2H4O, H2, O3

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Excellent Technology Co.
Hong Kong: Tel. (852) 2691 3821    Fax. (852) 2900 2980
Email: LabSupplyhk@Gmail.com

China: Tel. (86) 150 1799 2655   Fax. (86) 755 3360 9662
Email: etchk.China@Gmail.com