ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Measuring range:
Oxygen (O2 ): 0 to 25%
Carbon monoxide (CO): 0 to 2000 ppm
Carbon dioxide (CO2 ): 0 to 15%
CO' ( α=1) : 0 to 9999 ppm (calculated value) (CO' system CO conversion value when the old standard α=1,)
CO'=CO×(20.9/20.9-O2 )
According to the new standard GB16410-2007, the calculation method of CO1 is as follows: CO1 =C1a × (C2max /C2a -C20 )
where:
C1 - Carbon monoxide concentration in dry flue gas, theoretical air coefficient α = 1, volume percentage;
C1a - measured value of carbon monoxide concentration in dry flue gas, volume percentage;
C20 - measured value of carbon dioxide concentration in indoor air (dry state), volume percentage;
C2a - measured value of carbon dioxide concentration in dry flue gas, volume percentage;
C2m ax ——Theoretical carbon dioxide concentration in dry flue gas (calculated value), volume percentage;
Measurement accuracy:
Oxygen (O2): ± 0.2% O2
Carbon monoxide (CO): ± 5% of the reading value ± 5ppm
Carbon dioxide (CO2 ): ± 0.3%
CO' ( α = 1) : ± 5% of the reading value ±5ppm (calculated value)
Working voltage: DC 6V-4AH
Charging voltage: AC 165～265V
Working environment temperature: 0～40°C
Overall dimensions: 300×160×190mm
Sampling probe: φ6×400mm
Weight (host): 2.8Kg
