Applications

• • Underground Parking Garages,
• • Water Treatment Plants,
• • Municipal Service Garages,
• • Aircraft Hangers,
• • Chiller Monitoring,
• • Warehouses,
• • Automobile Dealerships & Battery Charging / Storage

• The Q4C is a multi-channel controller display and alarm unit that utilizes digital communications to interface with a maximum of four (4) remote digital transmitter/sensors. This series provides reliable measurement of a wide variety of toxic gases such as CO, NO2, NH3, H2S, SO2, Refrigerants, and Combustibles. The RS-485 communication is connected via a 4-wire, multi-drop daisy chain con¬figuration to reduce the overall installation cost of the system. Alarm set-points are set through the front keypad or through supplied software that is downloaded to the controller from a PC or laptop computer. Common relay confi-gurations include voting, averaging, delay on actuation and de-actuation, normally or not-normally energized and latching. The audible alarm has three buzzer settings; continuous, intermittent and double-tap intermittent. The Q4C has a dedicated 24 VDC transistor output terminal for horn and strobe. Available options include; a four (4) SPDT relay board, an analog output board that features 4-20 mA or 2-10 VDC outputs assignable as averaging or peak mode, and an RS-485 output board to communicate with an M-CONTROLLER. The Q4C comes standard with a 2 x 8-character backlit display, key pad, software CD and interface cable. Refer to all applicable Federal, State, Provincial and Local Health and Safety laws and regulations before using these products
  
  The M-Controllers are covered by ACI's Two (2) Year Limited Warranty, which is located in the front of ACI's Sensors & Transmitters catalog or can be found on ACI's web site, which is: www.workaci.com.