A versatile PLC based controller that utilizes AirTest proven sequence of operation to maximize energy
savings and ensure exceptional garage air quality. The version that works with variable speed drives
consistently achieves fan energy savings in excess of 90%.
The keypad on the controller provides status indication of sensor readings and the control output
and also includes a number of user adjustable parameters including:
7 day occupancy programming
Adjustment of VFD operational parameters
Adjustment of of high level averaging period with drives control
Settings for high alarm indication and off dead-band
Designed to sound alarm on high levels and activate a strobe on a sensor malfunction.
Horn And strobe silence
Can be ordered for single gas control (CO) or multiple gas control (CO, NO2)
Can be configured to take input from 4 to 32 sensors.
System provides power to the sensors.
UL50 Rated enclosure.
Standard version provides 2, 4-20 Ma VFD signals, options for additional outputs available.
Keypad mounted outside the controller.
Enclosed vehicle facility ventilation control for garages 42,000 to 250,000 sq ft.
Proven energy reduction (kWh) of 95% peak energy reduction of 95%
Designed to work with VFD controlled fans but can provide on/off or staged ventilation control.
Multiple zone capability (up to 6).
Works with AirTest 4-20 mA gas transmitters (TR2000-CO and TR3210-NO2).
CO only or CO and NO2 configuration.
Horn and strobe components available in 110VAC or 24VAC.
Phone dialler on system alarm.
AirTest offers very competitive pricing on Danfoss VFDs that
incorporate a energy meter, allowing tracking of ongoing energy savings of the system. Please ask us for a quote.
Temp Range: -30 to 140°F (-40 to 60°C)
Power options: 115 VAC, 220 VAC
Enclosure size 20"(H) X 16"(W) X 6" (D)
Two 4-20mA outputs for VFD control. Option for more outputs available
Three 5A relays: 1) High Level Alarm, 2) Controller/Sensor Fault, 3) Factory Configurable
Keypad indicates controller status and allows for adjustment of major operating parameters.
The TR5200 is a high accuracy catalytic bead gas sensor/transmitter that can be used to detect LEL (Lower Explosive Limit) concentrations of a wide range of combustible gasses. Transmitters can be provided calibrated to the specific combustible gas of interest.
The TR-2000 delivers all the advantages of electrochemical sensing in a durable, long life (5 year) package that is priced to compete against less accurate MOS/Solid State sensors. The LonWorks® version of this popular product uses the FTT-10 Free Topology Transceiver and provides a percent of range output (0-200 ppm).