Si Meccos iTr CO2 EV Monitor Gas Transmitter Universal Gas Alarm System (2001)

The Si Meccos iTr CO2 EV Monitor Gas Transmitter is a standalone device designed for continuous monitoring and control of air quality in various enclosed environments. It specifically measures carbon dioxide and other gases with selective detection capability using infrared spectrometry.

• Measurement principle: Infrared spectrometry
• Detectable gases: Carbon dioxide (CO2), methane (CH4), and flammable gases
• Wavelength: 4.3 µm
• Light source: Halogen lamp
• Detector: Pyroelectric LiTa element
• Optical path length options: 1 mm, 10 mm, 20 mm, 50 mm
• Measurement ranges: 0–1, 0–2, 0–5, 0–100 Vol% CO2
• Accuracy: ±5% of displayed value
• Response time: <30 sec (90% of final value), max. 1 min (100% of final value)
• Operating temperature: +3 to +40 °C
• Indicators:
• 4 LEDs for alarm (red), warning, operation (green), fault (yellow)
• Internal buzzer for alarm and fault signals
• Outputs:
• Analog 4–20 mA (max. 500 Ω load)
• 3 integrated relay contacts (alarm, warning, fault), max. load 48 V/DC, 20 W
• Control inputs: 1 reset/test button
• Power supply: 18–26 V DC, ripple <±100 mV
• Power consumption: Max. 25 W
• Protection rating: IP56
• Dimensions: 165 x 82 x 90 mm (LxWxT)
• Weight: Max. 0.5 kg

Applications include monitoring of air quality and gas leaks in laboratories, boiler rooms, storage spaces, basements, conference halls, theaters, and restaurants. The device is intended to ensure safety against toxic or explosive gases and optimize indoor air quality.

Includes: Si Meccos iTr CO2 EV Monitor Gas Transmitter Universal Gas Alarm System, manufactured in 2001, in excellent functional condition.