mso-hansi-font-family:"Times New Roman"">一、適用范圍：

mso-hansi-font-family:"Times New Roman"">測(cè)定碎石、礫石及破碎礫石中軟弱顆粒含量。按顆粒大小分別加以0.15kN mso-hansi-font-family:"Times New Roman"">、0.25kN "Times New Roman"">、0.34kN "Times New Roman"">之荷載，破裂之顆粒即屬于軟弱顆粒，將其棄去，稱出未破裂顆粒的質(zhì)量。

mso-hansi-font-family:"Times New Roman"">二、集料軟弱顆粒試驗(yàn)機(jī)技術(shù)參數(shù)：

1、電源電壓：220V

2、最大載荷：1200N

3、分度值：1N

mso-hansi-font-family:"Times New Roman"">三、試驗(yàn)方法：

mso-hansi-font-family:"Times New Roman"">稱風(fēng)干試樣2 "Times New Roman"">㎏(m1)，如顆粒粒徑大于31.5 mso-hansi-font-family:"Times New Roman"">㎜，則稱4 "Times New Roman"">㎏，過(guò)篩分成4.75 "Times New Roman"">㎜～9.5㎜，9.5 mso-hansi-font-family:"Times New Roman"">㎜～16 "Times New Roman"">㎜、16㎜以上各1 mso-hansi-font-family:"Times New Roman"">份；將每份中每一個(gè)顆粒大面朝下穩(wěn)定平放在壓力機(jī)平臺(tái)中心，按顆粒大小分別加以0.15kN mso-hansi-font-family:"Times New Roman"">、0.25kN "Times New Roman"">、0.34kN "Times New Roman"">荷載，破裂之顆粒即屬于軟弱顆粒，將其棄去，稱出未破裂顆粒的質(zhì)量(m2) "Times New Roman"">。

mso-hansi-font-family:"Times New Roman"">四、集料軟弱顆粒試驗(yàn)機(jī)計(jì)算公式：

mso-hansi-font-family:"Times New Roman"">按式(T0320-1) "Times New Roman"">計(jì)算軟弱顆粒含量，精確至0.1% "Times New Roman"">。

P= ×100??????????????????????? (T0320-1)

mso-hansi-font-family:"Times New Roman"">式中：P "Times New Roman"">——粗集料的軟弱顆粒含量(%) "Times New Roman"">；??

m1——各粒級(jí)顆?？傎|(zhì)量(g) mso-hansi-font-family:"Times New Roman"">；

m2——試驗(yàn)后各粒級(jí)完好顆粒總質(zhì)量(g) mso-hansi-font-family:"Times New Roman"">。

mso-hansi-font-family:"Times New Roman"">五、儀表使用方法：

mso-hansi-font-family:"Times New Roman"">（1 "Times New Roman"">）電源安裝：把電源適配器輸入端插在AC220V "Times New Roman"">（或AC110V "Times New Roman"">）插座上，輸出端插頭插在儀表盒右側(cè)插座上，并打開(kāi)電源開(kāi)關(guān)，是否通電。

mso-hansi-font-family:"Times New Roman"">（2 "Times New Roman"">）開(kāi)機(jī)：打開(kāi)電源開(kāi)關(guān)，開(kāi)機(jī)時(shí)出現(xiàn)開(kāi)機(jī)畫面，并隨即轉(zhuǎn)為“0.00 "Times New Roman"">”，此時(shí)可進(jìn)行稱重。如開(kāi)機(jī)不為“0.00 "Times New Roman"">”可按“置零”鍵進(jìn)行清零，待顯示“0.00 "Times New Roman"">”和右下角“”不閃動(dòng)時(shí)進(jìn)行稱重。

mso-hansi-font-family:"Times New Roman"">（3 "Times New Roman"">）選擇：設(shè)有牛頓（KN "Times New Roman"">）和英鎊（1b "Times New Roman"">）兩種重量單位，按下“轉(zhuǎn)換”鍵，液晶屏右上角“??? ”指向選擇的重量單位。

mso-hansi-font-family:"Times New Roman"">（4 "Times New Roman"">）試驗(yàn)：液晶屏顯示“0.00 "Times New Roman"">”時(shí)可進(jìn)行試驗(yàn)。

mso-hansi-font-family:"Times New Roman"">（5 "Times New Roman"">）鎖定：按下“鎖定”鍵可將重量鎖定，此時(shí)重量不變化，以便記錄。反復(fù)按“鎖定”鍵將在鎖定和釋放間轉(zhuǎn)換。

mso-hansi-font-family:"Times New Roman"">（6 "Times New Roman"">）超重：稱重超過(guò)最大稱量時(shí)，將顯示“OF "Times New Roman"">”，并發(fā)出連續(xù)警報(bào)聲。出現(xiàn)超重請(qǐng)移去承重面板上的重物，以保護(hù)傳感器不致?lián)p壞。

mso-hansi-font-family:"Times New Roman"">（7 "Times New Roman"">）置零：試驗(yàn)前將裝集料的圓盤放上后，可按“置零”鍵清零后進(jìn)行壓力試驗(yàn)。移去試桶后，將顯示負(fù)的皮重，可按“置零”鍵恢復(fù)零位。

mso-hansi-font-family:"Times New Roman"">（8 "Times New Roman"">）出錯(cuò)指示：秤顯示“Er "Times New Roman"">”，表示出錯(cuò)，需重新稱重或?qū)Τ舆M(jìn)行修理。

mso-hansi-font-family:"Times New Roman"">（9 "Times New Roman"">）關(guān)機(jī)：關(guān)掉電源開(kāi)關(guān)。較長(zhǎng)時(shí)間不用時(shí)，請(qǐng)拔掉電源適配器。