Stand Alone Toxic and Explosive Gas Monitoring

The VA-201M and its microprocessor-based system features a high quality stand-alone controller, providing all the necessary hardware for the continuous monitoring of toxic and combustible/explosive gases.  This unit is primarily geared towards providing
alarm-activated relays for simple applications such as small parking garages. 

• 2 alarm levels with programmable time delays
• 10-step LED display of detection level and operating status
• High/low DPDT alarm relays
• Audio/visual alarms
• Available in solid state, electrochemical, catalytic combustion and diffusion fuel cell sensing technologies
• Calibration status warning
• Simple installation and operation
• Optional remote sensing and LCD display

• Power Requirements: 17-27 VAC, 24-38 VDC
• Alarm Levels: High and Low
• Time Delays: 1, 3, 5 or 10 min.
• Concentration Display: 10-step LED
• Relay Contact Capacity: DPDT 1/8 HP, 5A 24dc or 240Vac
• Visual Indicators:        Yellow LED: Failure Indication
  Green LED: Normal Operation
  Audible Alarm: 65dBA at 3 feet (1 metre)
• Humidity Range: 5-90%
• Operating Temperature: 
  32⁰ F to 100⁰F (0⁰C - 40⁰C) 

Q1-Type Sensor

Electrochemical (toxic)
Catalytic  Combustion (flammables)              
Diffusion Fuel Cell (oxygen)

Q2-Type Sensor

Second Generation Oxide Semiconductor                     Solid-State              

VA201T Toxic and Explosive Gas Transmitter

VA201D Industrial Toxic and Explosive Gas Transmitter

VA201C Controller

VASQN-8X Advanced Multi-Point Gas Monitor

90DM3A  CO₂   Gas Transmitte

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Description                                                                Part Number                                                      Complete Gas Monitor with Q1-Type Sensor                VA-201M-Q1-xxx                 xxx: Gas to be detected 
Complete Gas Monitor with Q2-Type Sensor                VA-201M-Q2-xxx                 xxx: Gas to be detected
Option:   Remote Sensor Configuration                       -RS