Analygas Systems Model 73

Analygas® Systems Model 73 is a single point, sample drawing gas monitor specifically designed to detect Carbon Dioxide and can be used for monitoring work areas, remote unattended spaces or as a process control device.

The Model 73 is suitable for use in wash down areas in the food and beverage industry.

The Model 73 protects people from the effects of exposure to harmful levels of the target gas. It can also be used to help control the levels of Carbon Dioxide where it is critical to the process.

Analygas® Systems
A Division of InspecTech Analygas Group Inc.
450 Midwest Road, Toronto, Ontario, Canada, M1P 3A9
Tel: 416-759-2241 Fax: 416-757-8096
Email: sales@analygas.com Web: www.analygas.com


  • Specific Infrared Sensor
  • Stainless Steel Enclosure
  • Digital Display
  • Easy ‘Automatic Calibration’
  • Visual and Audible Alarms


  • Infrared Detector
  • Single Sensing Point
  • Digital Display
  • 120V or 240V Input, 40V A
  • 4-20mA or 0-1V Output
  • 3 Output Relays
  • Operating Temperature

                 -10ºC to 40ºC

                  14ºF to 104ºF


  • Carbon Dioxide   0-0.5%

  • Carbon Dioxide   0-1%

  • Carbon Dioxide   0-5%

  • Others (Consult Factory)

Analygas® Systems Model 73 is a wall mounted gas monitor for use in non-hazardous indoor locations and housed in a rugged stainless steel enclosure that  meets industry standard NEMA 4X. It offers a high degree of protection against dirt, corrosion and liquid ingress and is most suitable for use in washdown locations.

It utilizes non-dispersive infrared technology to specifically detect Carbon Dioxide. The central component is an Analygas Systems designed infrared sensor assembly that can be configured to detect up to 100% of the target gas.

The front panel has an acrylic viewing window, behind which is a Vacuum Fluorescent digital display plus power and alarm status LED's. A keypad assembly allows selection and adjustment of many on-board features.

'Calibration has never been easier'

During routine calibration, the instrument detects the presence of calibration gas and enters its AUTO-CAL procedure, prompting easy to follow instructions on the display.