容(rong)(rong)(rong)(rong)重(zhong)(zhong)是(shi)反映糧(liang)(liang)(liang)(liang)食(shi)(shi)特(te)性的(de)(de)(de)(de)綜合指(zhi)標之(zhi)一，也是(shi)國內外糧(liang)(liang)(liang)(liang)食(shi)(shi)定(ding)(ding)(ding)(ding)等及評(ping)價糧(liang)(liang)(liang)(liang)食(shi)(shi)工藝品(pin)質的(de)(de)(de)(de)主要指(zhi)標[4] 。根(gen)據容(rong)(rong)(rong)(rong)重(zhong)(zhong)可以(yi)推算出一定(ding)(ding)(ding)(ding)體(ti)積糧(liang)(liang)(liang)(liang)堆的(de)(de)(de)(de)質量(liang)(liang)以(yi)及一定(ding)(ding)(ding)(ding)質量(liang)(liang)糧(liang)(liang)(liang)(liang)食(shi)(shi)所需的(de)(de)(de)(de)倉容(rong)(rong)(rong)(rong)，這對糧(liang)(liang)(liang)(liang)食(shi)(shi)的(de)(de)(de)(de)儲運工作有一定(ding)(ding)(ding)(ding)的(de)(de)(de)(de)實踐意義(yi)。此外，容(rong)(rong)(rong)(rong)重(zhong)(zhong)還是(shi)計算小(xiao)(xiao)(xiao)(xiao)(xiao)麥(mai)理論出粉率的(de)(de)(de)(de)重(zhong)(zhong)要依據之(zhi)一。容(rong)(rong)(rong)(rong)重(zhong)(zhong)是(shi)指(zhi)單位容(rong)(rong)(rong)(rong)積內糧(liang)(liang)(liang)(liang)食(shi)(shi)、油(you)料籽(zi)粒的(de)(de)(de)(de)質量(liang)(liang)。我國小(xiao)(xiao)(xiao)(xiao)(xiao)麥(mai)、玉米(mi)等許(xu)多糧(liang)(liang)(liang)(liang)食(shi)(shi)的(de)(de)(de)(de)定(ding)(ding)(ding)(ding)等都是(shi)以(yi)容(rong)(rong)(rong)(rong)重(zhong)(zhong)為基(ji)礎指(zhi)標。糧(liang)(liang)(liang)(liang)食(shi)(shi)容(rong)(rong)(rong)(rong)重(zhong)(zhong)的(de)(de)(de)(de)大(da)小(xiao)(xiao)(xiao)(xiao)(xiao)是(shi)由(you)籽(zi)粒的(de)(de)(de)(de)大(da)小(xiao)(xiao)(xiao)(xiao)(xiao)、形(xing)狀(zhuang)、整齊度(du)、腹溝深淺、飽滿程度(du)、胚乳質地等多方面決定(ding)(ding)(ding)(ding)的(de)(de)(de)(de)。一般來說，籽(zi)粒成熟飽滿、結(jie)構緊密、顆(ke)粒小(xiao)(xiao)(xiao)(xiao)(xiao)、含水(shui)(shui)(shui)量(liang)(liang)低的(de)(de)(de)(de)樣(yang)品(pin)，容(rong)(rong)(rong)(rong)重(zhong)(zhong)較大(da)；反之(zhi)，容(rong)(rong)(rong)(rong)重(zhong)(zhong)較小(xiao)(xiao)(xiao)(xiao)(xiao)。特(te)別是(shi)籽(zi)粒中水(shui)(shui)(shui)分(fen)(fen)含量(liang)(liang)影響(xiang)容(rong)(rong)(rong)(rong)重(zhong)(zhong)的(de)(de)(de)(de)大(da)小(xiao)(xiao)(xiao)(xiao)(xiao)，一般呈負線性關(guan)系，這主要是(shi)由(you)于(yu)水(shui)(shui)(shui)的(de)(de)(de)(de)比重(zhong)(zhong)小(xiao)(xiao)(xiao)(xiao)(xiao)于(yu)糧(liang)(liang)(liang)(liang)食(shi)(shi)的(de)(de)(de)(de)比重(zhong)(zhong)，同時，水(shui)(shui)(shui)分(fen)(fen)也影響(xiang)籽(zi)粒的(de)(de)(de)(de)體(ti)積，水(shui)(shui)(shui)分(fen)(fen)大(da)的(de)(de)(de)(de)糧(liang)(liang)(liang)(liang)食(shi)(shi)籽(zi)粒體(ti)積也較大(da)，單位容(rong)(rong)(rong)(rong)積內的(de)(de)(de)(de)質量(liang)(liang)就(jiu)小(xiao)(xiao)(xiao)(xiao)(xiao)
水(shui)(shui)(shui)(shui)分(fen)(fen)是(shi)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)一個重要成分(fen)(fen)，它不(bu)(bu)僅(jin)影(ying)響 糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)籽(zi)粒的(de)變(bian)(bian)化(hua)，還影(ying)響糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)加(jia)工(gong)、儲藏及(ji)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)品的(de)制作。水(shui)(shui)(shui)(shui)分(fen)(fen)過高(gao)的(de)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)易發熱(re)霉變(bian)(bian)，適量(liang)的(de)水(shui)(shui)(shui)(shui)分(fen)(fen)可保證糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)加(jia)工(gong)及(ji)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)品制作的(de)順利(li)進行。糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)中(zhong)存(cun)(cun)在兩種(zhong)水(shui)(shui)(shui)(shui)分(fen)(fen)形式：游離水(shui)(shui)(shui)(shui)和結(jie)合水(shui)(shui)(shui)(shui)。當(dang)谷類糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)分(fen)(fen)達到14%～15%時(shi)。開始出現游離水(shui)(shui)(shui)(shui),當(dang)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)分(fen)(fen)在13.5%以(yi)下(xia)時(shi),一般看做是(shi)結(jie)合水(shui)(shui)(shui)(shui)。游離水(shui)(shui)(shui)(shui)在糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)籽(zi)粒內很不(bu)(bu)穩定，它的(de)存(cun)(cun)在對(dui)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)安(an)全儲藏十分(fen)(fen)不(bu)(bu)利(li),只有糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)含水(shui)(shui)(shui)(shui)量(liang)下(xia)降(jiang)(jiang)到結(jie)合水(shui)(shui)(shui)(shui) 范圍內時(shi)，糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)籽(zi)粒才(cai)能處(chu)于休眠狀態，生命活動才(cai)能減到zui低限度，才(cai)有利(li)于糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)儲存(cun)(cun)。為了增(zeng)加(jia)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)儲藏的(de)穩定性，收(shou)(shou)儲企業對(dui)收(shou)(shou)購的(de)高(gao)水(shui)(shui)(shui)(shui)分(fen)(fen)糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)必須采取措施，降(jiang)(jiang)低糧(liang)(liang)(liang)(liang)(liang)(liang)食(shi)(shi)(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)分(fen)(fen)含量(liang)。隨著水(shui)(shui)(shui)(shui)分(fen)(fen)的(de)降(jiang)(jiang)低，容重也會發生變(bian)(bian)化(hua)。由于容重是(shi)小麥的(de)定等指標，直(zhi)接與小麥價格有關(guan)，因此，研究(jiu)水(shui)(shui)(shui)(shui)分(fen)(fen)變(bian)(bian)化(hua)與容重的(de)關(guan)系，具有重要的(de)意義。
1、稱重范圍：0-60g
★★可(ke)調試測試空(kong)間為3cm、5cm、10cm
2、水分測定范圍(wei)：0.01%-100%
★★JK稱重系統傳感(gan)器
★★SFY系(xi)列商標號：8931081
3、稱重zui小(xiao)讀數：0.01g
4、樣品質量：60g
5、加熱溫度范圍：起(qi)始-180℃
★★加(jia)熱方式(shi)：應變式(shi)混合(he)氣體加(jia)熱器(qi)
★★微調自動(dong)補償溫度(du)zui高15℃
6、水分含量可讀性(xing)：0.01%
7、顯示參數：7種
★★ 水分值(zhi)，樣品初值(zhi)，樣品終(zhong)值(zhi)，測定時(shi)間，溫(wen)度(du)初值(zhi)，zui終(zhong)值(zhi)，恒重值(zhi)
★★紅色數碼管獨立顯示模式
8、通訊接口：RS 232
9、外(wai)型尺寸：380×205×325(mm)
10、電源：220V±10%
11、頻率：50Hz±1Hz
12、工作環境(jing)溫度：-5℃－50℃
13、相對(dui)濕度(du)：≤80
