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Date：2009-2-5 View：125次
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Ⅰ. Usage Construction 1. Environmental Temperature，a) Inside of ,
－5℃～＋40℃ Relevant Humidity of , ≤90％
b)
Outside of , －25℃～＋55℃ Relevant Humidity of , ≤95％
2.Allowed Maximal Working Pressure of , ≤50kPa. Ⅱ. Metric Characteristics 1．Metric classification and major technical performance, 2. Metric error: apply to the
Statute of GB/T6968-1997
3. Pressure on the value of the loss, ≤200Pa 4. The data which is collected from the computer system should not beyond ±1m3 to the data which is from the basic meter. Ⅲ. Electrical Characteristics i. Taken Time, ≤2S ; ii. Working Pressure: Direct Current 3.0V～3.6V ; iii. Power Consumption, ＜15μW iv. Communication Mode: semi duplex wireless communication, carrier wave frequency, 315MHz,433MHz,470MHz,868MHz and 915MHz, the max output power ,50mW v. The max transmission distance ,700m (with no covering) vi. Communication rules apply to the Statute of the CJ / T 188 2004. vii. Work environment: temperature of 0～+40℃,relative humidity of, 85% viii. Batteries life-span of, 5 years. |
