腰果仁水分活度儀參數及產品型號

腰果仁水分活度儀參數

(1)傳感器:進口(kou)傳感器

(2)準(zhun)確(que)性:0.010AW

(3)分辨率(lv): 0.001AW

(4)重 復(fu) 性：≤0.005

(5)測量(liang)范圍：0.000～0.990AW

(6)測(ce)量精度(du)：溫度(du)± 0.1℃

              活度±0.015（@25℃）

(7) 測量時間:一(yi)般樣品10-15分鐘(最(zui)長時間為60分鐘)

(8) 測量通(tong)(tong)道:單通(tong)(tong)道(多通(tong)(tong)道可(ke)選)

(9)顯示屏：7寸大觸(chu)摸彩屏

(10)校準(zhun)方(fang)式: 自動校準(zhun)(校正(zheng)值補(bu)償(chang))

(11)操作(zuo)方式(shi)：觸(chu)摸

(12)顯(xian)示(shi)(shi)速度：實時顯(xian)示(shi)(shi)檢測曲線(xian)

(13)樣品(pin)皿容(rong)量(liang):20ml

(14)溫度顯示:0-50℃

(15)輸出方(fang)式：微型打印機(ji)

(16)數據(ju)接口:RS232

(17)工作(zuo)環(huan)境：溫度0～50℃    濕度0～95%RH

(18) 功(gong)  耗：20W

(19)供電電壓：交流220V

(20)外形尺(chi)寸：280mm×226mm×120mm

食(shi)(shi)品(pin)(pin)的變(bian)質與(yu)食(shi)(shi)品(pin)(pin)中(zhong)(zhong)的水(shui)(shui)分(fen)(fen)(fen)(fen)含量(liang)有(you)關(guan)，雖然變(bian)質程(cheng)度(du)(du)(du)(du)并不與(yu)水(shui)(shui)分(fen)(fen)(fen)(fen)含量(liang)成(cheng)比例，但水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)的大小(xiao)更能(neng)說明食(shi)(shi)品(pin)(pin)發生(sheng)變(bian)質的問題。水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)決定(ding)了各(ge)種(zhong)微(wei)生(sheng)物在食(shi)(shi)品(pin)(pin)中(zhong)(zhong)萌發的時(shi)間、生(sheng)長速率和死亡率。水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)越(yue)(yue)大，食(shi)(shi)品(pin)(pin)內自由(you)水(shui)(shui)含量(liang)越(yue)(yue)多(duo)，越(yue)(yue)易受微(wei)生(sheng)物感染；而食(shi)(shi)品(pin)(pin)中(zhong)(zhong)水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)越(yue)(yue)小(xiao)，食(shi)(shi)品(pin)(pin)越(yue)(yue)穩(wen)定(ding)，較少(shao)出現變(bian)質的問題。因(yin)此，水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)成(cheng)為一(yi)個指示(shi)產品(pin)(pin)穩(wen)定(ding)性(xing)和微(wei)生(sheng)物安全(quan)的重要(yao)(yao)參(can)數(shu)。另外，由(you)于各(ge)種(zhong)微(wei)生(sheng)物的生(sheng)命(ming)活(huo)動以(yi)及各(ge)種(zhong)化學(xue)、生(sheng)物化學(xue)變(bian)化都需(xu)要(yao)(yao)一(yi)定(ding)的水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)值(zhi)，所以(yi)水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)值(zhi)對食(shi)(shi)品(pin)(pin)保存具有(you)重要(yao)(yao)的意義。水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)、水(shui)(shui)活(huo)性(xing)、水(shui)(shui)活(huo)度(du)(du)(du)(du)均屬于同(tong)一(yi)概(gai)念。目前市場上受歡迎的水(shui)(shui)分(fen)(fen)(fen)(fen)活(huo)度(du)(du)(du)(du)儀冠亞牌GYW-1，操作簡單(dan)(dan)，廣泛應用于食(shi)(shi)品(pin)(pin)企業、院(yuan)校、科研單(dan)(dan)位等。

腰果仁水分活度儀參數及產品型號