Ambient CO Gas Analyzer (CAAQMS)

The Vair-9003 CO Analyzer precisely detects trace levels of carbon monoxide (CO) in the air using the Non-Dispersive Infrared (NDIR GFC) method. It employs an optical curved mirror with a long optical path for enhanced sensitivity and durability.

The analyzer is equipped with a specially engineered GFC wheel designed for long-term leak-free performance and a stable infrared (IR) light source to ensure consistent accuracy. All analyzers in the Vasthi series feature a TFT-LCD touchscreen interface for intuitive operation and clear visualization. Powered by a 32-bit ARM Cortex-M4 processor running on Linux Kernel 2.6, the system delivers exceptional stability and multitasking efficiency.

Additionally, the analyzer includes an automatic zero calibration (Auto Zero) feature for reliable measurements and multiple communication interfaces—Ethernet, RS232, RS485, USB, and analog output—for flexible connectivity and user convenience.

FEATURES

  • Ranges 0-50 / 100 ppm, user selectable.
  • 7inch TFT LCD & touch screen interface.
  • Ethernet, RS-232, RS-485 & USB ports.
  • USB interface utilizes for Stored Data Download.
  • Temperature & pressure compensation and Internal zero (optional)
  • In built Data Logger Utilizes NAND-Flash to Store up to 1year (1 min averaged data)

Technical Specifications

Measuring items Carbon monoxide(CO) in Ambient Air
Model Number Vair - 9003
Measuring method Non-dispersive infrared analysis(GFC NDIR)
Ranges 0-50 / 0-100ppm (selectable)
Lower Detectable Limit Less than 0.5 ppm
Repeatability with in ±0.5 % of span gas concentration
Zero drift Less than 0.1 ppm
Span drift with in ±1% full scale (1 day)
Response time (95%) Less than 60 seconds (T95)
Linearity with in ±1% full scale
Precision 1% of reading or 0.1 ppm
Operating temperature 5 - 40°C
Analog output 0-1 V / 0-5V or 4-20mA (optional)
Sample flow rate Stabilized flow control by 800cc/min ± 10% Critical Orifice
Particular filter 47mm Teflon Filter
Display 7'' inch Graphic LCD
Comport Ethernet, USB2.0, RS-232, RS-485
Internal Data Memory Measuring data (1 min/1 year), operation history, Messages, Alert
Power Requirement 110-240V, 50/60Hz