数字鸿土上的硬度计

Name:Soil Hardness Meter Model:TYD-2 Introduction: 1.The Soil Hardness Meter can be connected to computer.The computer will synchronous display curve and detailed records .Set Automatic On/Off . 2.Battery capacity:The capacity on the meter is devided into threee parts.When the power is low ,the meter will automatic off . Specification: 1.Display:LCD display (Have backlight display function,can be used in the night) 2.Range:0 500N/cm2(The three units of Kg, Newton and Pounds can be automatic switch over) 3.Measuring depth: 0-450mm 4.Stored data: 896 datas 5.Power:Have charge power supply 220V/AC 6.Battery continuous operation time:6-8 hours 7.Resolution: 1N per word 8.Stability: Temperature Drift: 0.2uV/degrees Celsius(0-60 degrees Celsius) Null Drift:less than 0.1% /8 hours/FS 9.Calibration range: Full-scale calibration 10.Ambient temperature:0 +60 degrees Celsius Ambient humidity:80 % 11.Permission overload:150 % 12.Power:NO.5 nickel and cyanogen battery 220V AC, charging 8 12 hours