Gas Detection Controller

Serving as the brain of a gas detection network, the VA-201C provides continuous monitoring of up to 32 transmitters (VA-201T).  This powerful tool can activate up to 4 relays per detection level per transmitter.  The VA-201C controller minimizes installation costs by using an addressable RS-485 link.

• 2 alarm levels with programmable time delays
• Optional LCD display
• High/low DPDT alarm relays
• Audio/visual alarms
• Failure indicator
• Quick self-test and
  warm up
• Simple installation and operation

• Power Requirements: 17-27 VAC, 24-38 VDC, 300mA
• Alarm Levels: high and low
• Time Delays: 1 to 99 min.
• User Interface: LEDs, LCD display and keypad available
• Relay Contact Capacity: DPDT 1/8 HP, 5A 24dc or 240Vac
• Visual Indicators:        Yellow LED: Failure Indication
  Green  LED: Normal
  Operation  
  Red LED: Alarm Condition
• Audible Alarm: 65dBA at 3 feet (1 metre)
• Humidity Range: 5-90%
• Operating Temperature:     
  32⁰ F to 100⁰ F
  (0^0C to 40⁰ C) 

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Description                                                                Part Number    
Controller                                                                    VA-201C-xxx                 xxx: Number of zones   
Option:   LCD Display and Keypad        (AC)    3 Alarm Levels      (3L)