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                                                                                                                        首頁 > 技術文章 > 水分測試儀安裝場所的要求須知
                                                                                                                        水分測試儀安裝場所的要求須知
                                                                                                                        發布日期:2022-09-20      瀏覽次數:338
                                                                                                                          水分測試儀可以測量土壤剖面的容積含水率。該方法被證實是一款快速、可靠和方便的土壤測量方法。兩個電極插入到土壤中,發射出電磁波。反射波速度與土壤水含量正相關??梢詼y量不同土層水含量。LCD界面提供兩種模式:容積水含量模式和相對水含量模式(灌溉管理)。干/濕容積水含量設置可以測試儀編程,可達5種不同地點或土壤類型。
                                                                                                                         
                                                                                                                          水分測試儀的注意事項:
                                                                                                                         
                                                                                                                          1.在正常的測定過程中,每100ml電解液可與不小于1g的水進行反應,若測定時間過長,電解液的敏感性下降,應更換電解液。
                                                                                                                         
                                                                                                                          2.陰極室中的電解液,如果在測定過程中發現釋放出強烈的氣泡或電解液被污染成淡紅褐色,此時空白電流會增大,測量的再現性要降低,還會使到達終點的時間加長,這時應盡快更換電解液。
                                                                                                                         
                                                                                                                          3.電解時間超過半小時,儀器尚不能穩定,此時停止攪拌,觀察陶瓷濾板下部陽極上是否有明顯的棕色碘產生,如果沒有或產碘很少,則應更換電解液。
                                                                                                                         
                                                                                                                          4.必須小心,不要吸入或用手接觸電解液,如與皮膚接觸,應用水沖洗干凈。由于電解液的氣味大,并含有一定的有毒成分,所以實驗室內要通風良好。
                                                                                                                         
                                                                                                                          分測試儀的安裝場所:
                                                                                                                         
                                                                                                                          1.儀器不得安裝在有腐蝕性氣體的室內,其腐蝕性氣體可使儀器的電路部分腐蝕,縮短儀器的壽命。
                                                                                                                         
                                                                                                                          2.儀器不得安裝在低于5℃或高于40℃的地方(環境溫度15-25度合適)。
                                                                                                                         
                                                                                                                          3.儀器不得安裝在陽光直接照射的地方。
                                                                                                                         
                                                                                                                          4.儀器不得安裝在操作頻繁的電氣設備附近。
                                                                                                                         
                                                                                                                          5.儀器不得安裝在濕度大的地方或自來水排出管的附近。
                                                                                                                         
                                                                                                                          6.儀器不得安裝在超出規定電源波動的地方。
                                                                                                                         
                                                                                                                          7.為了使儀器更可靠地工作,建議使用電子交流穩壓器。

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