à¤Ã×èͧÇÑ´áÅФǺ¤ØÁ¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì ẺµÔ´¼¹Ñ§ ¾ÃéÍÁ¨ÍÀÒ¾ Wall Mount CO2, Temperature, RH Monitor & Controller AMT72 à¤Ã×èͧÇÑ´áÅФǺ¤ØÁ¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì AMT72 Wall Mount CO2, Temperature, RH Monitor & Controller AMT72 Features: Dual Beam NDIR (Non-Dispersive-Infrared) technology used to measure CO2 concentration. Three different LED display show the current Indoor Air Quality situation. (HVAC/Green House Mode) Linear analog output (0~10V Voltage, 4~20mA Current) and Relay output based on CO2 Level. Reliable Sensor provides long-term calibration stability. The visual and audible alarm function can be adjustable by user. Mounting bracket with terminal block provides quick easy installation. Specifications - CO2: Measurement Range 0~3,000ppm display Display Resolution 1ppm at 0~1,000ppm; 10ppm at 1,001~3,000ppm Accuracy ±75ppm or ±5% of reading whichever is greater Repeatability ±20ppm @400ppm Temperature Dependence Typ. ±0.2% of reading per °C or ±2ppm per °C, whichever is greater, referenced to 25°C Pressure Dependence 0.13% of reading per mm Hg Response Time About 2min for 90% of step change Warm-Up Time About 60 seconds at 22°C Sound Alarm About 65db@10cm> Zone LED Display Green:<800ppm yellow:800="" 1200ppm="" red:="">=1200ppm (HVAC mode) Green:>1000ppm Yellow:600~1000ppm Red: <=600ppm (Green House mode) Power Supply 18~26VAC RMS 50/60Hz or 18~36VDC (half-wave rectified, polarity protected) Linear Voltage Output 0~10VDC (100 Ohms output impedance) Linear Current Output 4~20mA (Max Load is 500 Ohm, Max Load is 400 Ohm while power supply< 20VDC ) Relay Output 30VDC or 250VAC, max 2A ., SPST .Normally Open Operating Temperature 0°C ~50°C (32°F~122°F) Operating Humidity Range 0 ~ 95% RH non-condensing Storage Temperature -20°C to +60°C (-4°F to 140°F) Specifications - Temperature Temperature Range Display 0°C to 50°C Display Resolution 0.1°C Display Options °C Accuracy (Relay no action and be under the alarm level) ±1°C; when the fan blows to the device directly, the accuracy of temperature is +/-1.5°C Accuracy (Relay action and exceeds the alarm level) ±2.5°C; when the fan blows to the device directly, the accuracy of temperature is +/-1.5°C Response Time 20-30 minutes (case must equalize with environment) Specifications - RH Measurement Range 20%-90% RH Display Resolution 1%RH Accuracy ±5%RH@ 23°C Response Time About 5 min for 63% of step change AMT72 CO2 Controller CO2 Meter TLEAD à¤Ã×èͧÇÑ´ CO2 à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì