Original dari AZ Instruments, Taiwan

Alat ukur kualitas udara dengan parameter:

1. CO2 atau Karbondioksida

2. Temperatur Udara

3. RH atau Kelembaban Udara

4. Dew Point

5. Wet Bulb Temperature

Review Manual: https://www.az-instrument.com.tw/v_comm/inc/product_file_download.asp?customer_id=1905&lang=2&id=616373&file_name=p_190215_00464.pdf

Features

AZ 7722 CO2 & Temp. & RH meter features:

* Super large LCD display CO2 value and temperature simultaneously

* Designed with NDIR (Non-Dispersive Infrared) wave guide technology

* ABC (Automatic Background Calibration) preset on for long time drift compensation

* Display 8 hrs TWA value (time-weighted average) or 15 minutes STEL value (short-term exposure limit)

* Easy to manually calibrate CO2 at fresh air

* Digital wall mountable / desktop type

* Warning Carbon Dioxide level

* Alarm output drive relay to control system

Model 7722

CO2 Range 0~9999 ppm (2001~9999 ppm out of scale range)

CO2 Resolution 1 ppm

CO2 Accuracy ±50 ppm ±5% of reading (0~2000 ppm), other range are not specified

CO2 Response Time ＜30 Seconds (90% step change)

CO2 Warm-up Time 30 Seconds

Air Temperature Range -10~60℃, 14~140℉

Air Temperature Resolution 0.1℃, 0.1℉

Air Temperature Accuracy ±0.6℃, ±0.9℉

Air Temperature Response Time ＜2 mins (90% step change)

Humidity Range 0.1~99.9% RH

Humidity Resolution 0.1% RH

Humidity Accuracy ±3%RH (at 25℃, 10~90%RH); others ±5%RH

Humidity Response Time ＜10 mins (90% step change)

Dew Point Temperature -20.0~59.9℃

Wet Bulb Temperature -5.0~59.9℃

LCD Size 65(L) * 50(W) mm

Meter Size 130(L) * 85(W) * 60(H) mm

Operating Temperature 0~50℃

Operating RH% 0~95% RH (avoid condensation)

Storage Temperature -20~50℃

Storage RH% 0~90% RH (avoid condensation)

Power Supply 12V DC Adaptor

Battery life ＜50 mA (average), ＜310 mA (peak)

Weight ~200g

Standard Package Meter, Manual, 12V USA Type Adaptor, Paper Box

Application

Application of AZ 7722 CO2 & Temp. & RH meter:

The 7722 AZ Wall Mount CO2 Humidity detector could measure the indoor air quality (IAQ) index, including the CO2 concentration, CO2 level, air temperature, dew point, wet bulb temperature and humidity. The Carbon Dioxide value can be output to PC for on-line analysis via USB interface. And it can be calibrated easily in the fresh air.

Poor indoor air quaintly is considered unhealthy because it causes tiredness, loss of ability to concentrate, and even illness (ex: sick building syndrome). IAQ monitoring and survey, especially on CO2 level and air ventilation become widely applied in public areas such as office, classroom, factory, hospital, work space, residential, commercial building and hotels. It is also suggested in regulations of industrial hygiene in some countries.

The 7722 AZ CO2 RH Thermometer device has the relay function, which could transfer the signal to control the other equipments. The 7722 AZ CO2 Temperature RH Meter has the stable NDIR CO2 sensor, and it is the ideal instrument for IAQ diagnosis. Its big LCD could be the best CO2 Monitor for long term monitoring. User could use the relay function to control or transfer the data to the following related instruments. And the built-in alarm output is especially helpful in ventilation control and HVAC system performance verification.