The RKI Model RI-600 measures carbon dioxide concentration in ambient air. The RI-600 displays the measured CO2 concentration on a large, easy-to-read digital LCD. If a high level of CO2 is detected, the user is notified by an audible alarm tone and the multicolored LCD digital display. The monitor outputs an analog 4~20mA signal, and gas alarm relay contacts open or close when the carbon dioxide concentration rises above the preset alarm set point.

The Model RI-600 uses Non-Dispersive Infrared Ray Absorption (NDIR) technology to detect CO2. An infrared beam emitted from the light source passes through the gas cell and reaches the IR sensor. When CO2 enters the gas cell, the amount of infrared energy received by the IR sensor decreases as the infrared energy is absorbed by CO2. This reduced energy is detected by the sensor and displayed as a gas concentration. An optical band pass filter in front of the IR sensor passes only the CO2 absorption wavelength. Power options are 115 VAC or 24 VDC.

The RI-600 has two preset alarms, and comes ready to operate with a simple wall mount bracket and 10 foot power cord.

Features

• Operates with or without a separate controller
• Long-life NDIR CO2 sensor
• Large, easy-to-read digital display
• Two power options: 115 VAC, 24 VDC
• Compact wall mount design
• Tri-color visual alarm display
• Multiple configurable CO2 detection ranges:
  • 0 to 2,000 ppm
  • 0 to 5,000 ppm
  • 0 to 10,000 ppm
  • 0 to 2% vol.
  • 0 to 5% vol.
• Audible high CO2 alarm
• 4~20mA analog output and alarm relay contacts