A14/A11 Modular Gas Detector

Brand: Analytical Technology Inc

The GasSens A14/A11 Modular Gas Detector is a flexible component system providing a variety of options to meet individual gas detection and alarm requirements. 

From chemical and petrochemical plants to food processors, the GasSens system can be applied to the simplest or most complex gas detection application. 

Economical and low maintenance, this system is your best choice for reliable gas leak detection. 

GasSens gas detection systems consist of individual modules that can be located where required. 

Sensor/transmitters, located in the area where gas leakage or buildup might occur, provide the basic measurement for the system. 

Sensor transmitters are available in either NEMA 4X or explosion-proof versions and can be supplied with ATI’s exclusive Auto-Test automatic gas sensor testing system, greatly reducing operator testing requirements.

Receiver modules provide the electronic brains for the gas detection and alarm system. 

Each compact module includes a digital display of gas concentration, isolated Analog output, and 4 relay outputs. 

Receivers may be located up to 1000 feet from sensor/transmitters for remote indication, or can provide local control functions such as valve shutoff while transmitting a 4-20 mA signal to remote displays or data loggers.

Universal power supply modules provide DC power to receivers. 

The power supply is housed in a compact module similar to the receiver, and will accept inputs from 85 to 265 volts, AC or DC, without adjustment. 

The power supply also provides a power failure relay and charging for an optional battery back-up unit.
Features
  • Receiver modules provide electronic brains for the gas detection and alarm system
  • Isolated analog output and 4 relay outputs
  • Universal power supply modules provide DC power to receivers.
  • Power supply provides a power failure relay and charging for optional battery back-up unit.
  • LED Display
  • Analog Output
  • Two Alarm Setpoints
  • Three Alarm Relays
  • Trouble Alarm & Relay
  • Front Panel Reset Switch
  • Remote Reset Input
  • Pluggable Terminal Blocks

Specifications

Construction Display

  • 4 Digit LED, Sunlight Readable

Input

  • Digital Signal, 2-Wire Connection to Remote Sensor/Transmitter

Output

  • Isolated 4-20 mA DC, 1000 ohms Max. Load

Alarms

  • Two Adjustable Concentration Alarms, Set Points Adjustable from 5 - 100 % of Range

Alarm Indicators

  • High Intensity LED Bars for WARNING (Low Setpoint) and ALARM (High Setpoint)

Indicator Function

  • WARNING Indicator Non-Latching, ALARM Latching

Alarm Relays

  • Three Assignable Alarm Relays, 10 A, 120 Vac (5 A, 250 Vac) Resistive Alarm Relays Assignable to Either Alarm Set Point

Relay Function

  • Configurable for Normal/Fail-Safe, Latching/Non-Latching, and Fast/Slow Operation

Relay & Indicator Reset

  • Activated from Front Panel Switch or Through Remote Reset

Trouble Alarm

  • Front Panel LED Indicator and SPDT, 10 A, 120 Vac (5 A, 250 Vac) Resistive Relay, Relay Factory Set to Fail-Safe Operation

Trouble Function

  • Indicates Loss of Sensor/Transmitter Input or Failure of Sensor Auto-Test (if in use)

Gas Indicator

  • LED Bar on Front Panel with Gas Symbol Overlay

Mounting

  • Module Mounts to 35 x 7.5 mm DIN Rail

Electrical Connection

  • Quick Disconnect Plug-In Terminal Blocks

Module Enclosure

  • Noryl

Size

  • 2.8”W x 3.6”L x 2.3”D (70 mm x 90 mm x 58 mm)

Operating Temperature

  • -40° C to 55° C

Humidity

  • 0 - 99 % Non-Condensing

Power

  • 9 - 15 Vdc, 300 mA Max.

  • Chemical Plants
  • Pulp & Paper Mills
  • Semiconductor Fabrication
  • Food Processing
  • Water Treatment
  • Mineral Processing
  • Wastewater Treatment
  • Parking Facilities
  • Gas Processing
  • Petroleum Refining

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