Si Meccos iTr CO2 EV CO2 Gas Transmitter and Universal Gas Alarm System 13746

Si Meccos iTr CO2 EV Gas Transmitter

The Si Meccos iTr CO2 EV is a stand-alone CO2 gas transmitter and alarm system for continuous indoor air monitoring. It is designed for laboratories, boiler rooms, storage rooms, cellar rooms, conference halls, theatres, restaurants, and other areas where carbon dioxide accumulation or poor air quality may present a risk.

• Measurement and sensing
• Selective measurement of CO2, CH4, and flammable gases
• Measurable gas: carbon dioxide (CO2)
• Infrared spectrometric measurement principle
• Wavelength: 4.3 µm
• Halogen lamp light source
• Pyroelectric LiTa detector element
• Optical path lengths: 50 mm, 20 mm, 10 mm, and 1 mm
• Typical measuring ranges: 0...1, 0...2, 0...5, and 0...100 Vol% CO2
• Accuracy: ±5% of the displayed value
• Setting time: less than 30 seconds at 90% response; maximum 1 minute at 100% response
• Maximum number of measuring points: 1

• Alarm and outputs
• Four LEDs for alarm, warning, operation, and fault indication
• Red LED: self-holding main alarm and self-extinguishing pre-alarm
• Yellow LED: fault
• Green LED: operation
• Internal buzzer for alarm and fault
• Three integrated relay contacts for alarm, warning, and fault
• Relay contacts configured as opener/closer
• Maximum relay contact load: 48 V/DC, 20 W
• 4–20 mA analog output with maximum 500 ohm load
• One reset control button for alarm reset and test triggering

• Electrical and mechanical specifications
• Supply voltage: 18...26 V/DC
• Residual ripple: less than ±100 mV
• Maximum power consumption: 25 W
• Protection class: IP56
• Ambient temperature: +3...40°C
• Dimensions (L × W × D): 165 × 82 × 90 mm
• Weight: maximum 0.5 kg
• Year of construction: 2001

The Si Meccos iTr CO2 EV monitor is suitable for continuous CO2 detection, indoor air quality control, and gas leak alarm applications requiring local visual, audible, relay, and analog signal outputs.