AII product great advantage, if you want to learn more about related products, you can contact our technical engineers. Phone: 021--69125702, phone: 1 5 8 0 1 9 4 7 9 9 4 QQ: 2 3 5 5 8 1 8 2 3 0 Fang. GPR-31 / 31W US AII / ADV oxygen analyzer 311 rechargeable battery built into the power supply is provided by two Nicd battery, the battery is fully charged can be used for 45 days. Rechargeable batteries can be used repeatedly for several years. Instrument built-in charging circuit can accept rechargeable power supply 100 or 220VAC, 50 / 60Hz for. Technical parameters: Detection range: 0 ~ 10,0 ~ 100,0 ~ 1000,0 ~ 10000PPm O2 and use of air testing. Sensitivity: 0.5% of full scale (fa). Accuracy: The temperature is constant: ± 2% (fa), (except in the range of 0 ~ 10PPm ± 1PPm) at the operating temperature exceeds: ± 5% (fa) (except in the range of 0 ~ 10PPm ± 1PPm) Operating temperature range: +32. F ~ + 122. F (0 ℃ ~ + 50 ℃) Response time: 77. F i.e. 25 ℃ in 0 ~ 10 PPm block, up to 90% response value, the response time is less than 45 seconds at 0 ~ 100PPm block, up to 90% response value, the response time is less than 30 seconds at 0 ~ 1000 PPm block, When 90% response, the response time of less than 10 seconds at 0 ~ 10000 PPm block, reaching 90% response, the response time of less than 10 seconds to detect cell Warranty: 6 months (B-2 type cell) battery power (311): Two and use rechargeable nickel-cadmium batteries, calibration values ??of 3.6V (maximum 4.0V), the discharge current of 700μA (when used), 25mA (maximum date of the fault line or similar) Power (311 charging circuit): 115VAC, 50 / 60H2 (100 / 220VAC optional) Weight: 6 pounds (2.71 kg) Range: 0 ~ 10/100 / 1000ppm, 0-1% O2 Accuracy: ± 2% of FS (at 20 ℃ time) Resolution: 0.01ppm (10ppm block) Response time: 10 seconds to reach 90% of the sensor principle: a fuel cell type. GPR-31 / 31W US AII / ADV oxygen analyzer sensor life: 24 months Certification: ISO9001, CE quality certification Display: 3 1/2 digit LCD display output: 0 ~ 100mV Analog Output Power: Rechargeable battery, a charge to use 60 Day-proof: intrinsically safe, explosion-proof rating: Class 1, Division 1, Groups A, B, C, D measuring medium: H2, He, hydrocarbons, inert gases, gas mixtures and acid gas flow rate: 1 ~ 5 SCFH, Recommended: 2 SCFH (cubic feet / hour) Calibration: 80% FS standard recommended air pressure: 5 ~ 30psig temperature: +5 ~ + 45 ℃ sampling system: GPR-11: Swagelock Quick stainless steel fittings Package: Volume: 9 " x 4 "x 3" Weight: 8 pounds (about 3.7 kg) GPR-31 / 31W US AII / ADV oxygen analyzer is above AII product details, please contact us For more information about technical specialists, Tel: 0 21--69125702, phone: 1 5 8 0 1 9 4 7 9 9 4 QQ: 2 3 5 5 8 1 8 2 3 0 Fang.