SATO SK-40CTH (No.1738-00) là máy theo dõi CO2 để cảnh báo nhu cầu thông gió ngoài nhiệt độ và độ ẩm.
Đo mức CO2 là phương pháp hiệu quả để phát hiện tình trạng thông gió kém ở nơi công cộng. Tuân thủ RoHS.
Với chức năng hiệu chuẩn tự động. Giá trị tối thiểu trong thời gian này được hiệu chuẩn tự động đến 400 ppm sau mỗi 7,5 ngày. Nếu không có người ở nơi sử dụng như vào ban đêm hoặc ngày lễ, nồng độ CO2 sẽ giống với không khí bên ngoài.
SATO KEIRYOKI Japan
CO2 Monitor Mini
Model : SK-40CTH (CO2 level 400 to 5000 ppm )
SK-40CTH is a CO2 monitor to alert the necessity of ventilation in addition to temperature and humidity.
Measurement of CO2 level is an effective method to discover bad ventilation in public spaces.
RoHS compliant.
Features
Test report + calibration certificate included
Small-sized CO2 monitor
Equipped with non-dispersive infrared CO2 sensor (NDIR)
Three levels of alarm settings are possible. A buzzer sound and a face icon will notify you when it is time to ventilate. Setting range: 600 to 3000 ppm (in 100 ppm steps)
Buzzer sound: ON/OFF possible
Along with CO2 concentration, temperature, humidity and dew point are also measured.
Battery life: up to 1 year
There are four installation methods: tabletop (stand), wall-mounted (hook hole), fixed to prevent theft (screws), and attached to a metal surface (magnet).
Displays the average value for the past 24 hours and 8 hours, and the highest value for the past 24 hours. (To clear, turn the power off.)
Equipped with key lock function
When Eco Mode is ON, the measurement interval is about 60 seconds: Battery life is about 1 year When Eco Mode is OFF, the measurement interval is about 10 seconds: Battery life is about 6 months (using alkaline batteries, when the buzzer sounds once a day)
With automatic calibration function. The minimum value during the period is automatically calibrated to 400 ppm every 7.5 days. If there are no people in the place of use such as at night or on holidays, the CO2 concentration will be the same as the outside air. Please turn it on in such an environment. *With manual calibration function
Specification
Measurement range:
CO2 concentration: 400 to 5000 ppm
Temperature: 0.0 to 50.0°C
Humidity: 10.0 to 95.0% rh
Dew point: -28.1 to 49.0°C (calculated value)
Measurement accuracy CO2 concentration: ±(5%rdg+50)ppm (400 to 3000ppm) ±7%rdg (other than those listed on the left) Temperature: ±0.6℃ (20.0 to 40.0℃) ±1.0℃ (other than those listed on the left) Humidity: ±5.0% rh (40-70% rh/at20-30℃) ±7.0% rh (other than those listed on the left)
Measurement interval: Approximately 10 seconds (Eco mode OFF) Approximately 60 seconds (Eco mode ON)
Functions CO2 concentration notification function – Setting range 600 to 3000 ppm – Buzzer sound (ON/OFF switch) – 3 types of face mark display CO2 concentration average value, maximum value display function – Cumulative average value display for the past 8 hours – Cumulative average value display for the past 24 hours – Maximum value display for the past 24 hours Key lock function (4-digit password setting) Eco mode function CO2 sensor manual calibration function CO2 sensor automatic calibration function Low battery mark display
Power supply: 3 AAA batteries
Battery life: Approximately 6 months (Eco mode OFF) Approximately 1 year (Eco mode ON) Conditions: Using alkaline batteries, with the buzzer operating once a day for 1 minute
Material: ABS, acrylic
Storage environment conditions: -10 to 50°C (no condensation)
