TDS-11ATDS值(zhi),電導(dao)率值(zhi),TDS測試(shi)筆,電導(dao)率測試(shi)筆的詳細資料：
TDS水(shui)(shui)(shui)(shui)(shui)(shui)(shui)質(zhi)測(ce)試筆是(shi)(shi)(shi)(shi)(shi)一種簡易便攜式(shi)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)質(zhi)測(ce)試工(gong)具，用(yong)來(lai)測(ce)試水(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)TDS值或水(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)率，以判斷(duan)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)純(chun)凈(jing)或污染程(cheng)度(du)(du)(du)。同時兼有測(ce)試水(shui)(shui)(shui)(shui)(shui)(shui)(shui)溫和(he)(he)環境溫度(du)(du)(du)的(de)(de)(de)(de)(de)(de)功能。產(chan)品可(ke)廣泛(fan)應用(yong)于(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)處理行業(ye)、飲用(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)業(ye)、家庭、個人居(ju)家旅游(you)、野外(wai)作(zuo)業(ye)等作(zuo)為(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)質(zhi)的(de)(de)(de)(de)(de)(de)檢驗判別(bie)工(gong)具。術語定義:1. TDS值： T.D.S. 為(wei) Total Dissolved Solids 的(de)(de)(de)(de)(de)(de)縮寫(xie)。中(zhong)文譯名為(wei)溶(rong)(rong)(rong)解(jie)性(xing)總固(gu)(gu)體，也就(jiu)(jiu)是(shi)(shi)(shi)(shi)(shi)溶(rong)(rong)(rong)解(jie)于(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)的(de)(de)(de)(de)(de)(de)固(gu)(gu)體的(de)(de)(de)(de)(de)(de)總量(liang)(liang)。如 礦物(wu)質(zhi)在水(shui)(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)的(de)(de)(de)(de)(de)(de)重量(liang)(liang)比(bi)數(shu)。水(shui)(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)的(de)(de)(de)(de)(de)(de)溶(rong)(rong)(rong)解(jie)固(gu)(gu)體主要是(shi)(shi)(shi)(shi)(shi)一些鈣和(he)(he)鎂，且(qie)不(bu)是(shi)(shi)(shi)(shi)(shi)可(ke)測(ce)得的(de)(de)(de)(de)(de)(de)污染物(wu)質(zhi)。測(ce)量(liang)(liang)單位(wei)(wei)為(wei) (parts per millions)或mg/L(milligram/Liter) ,它表(biao)明1升水(shui)(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)溶(rong)(rong)(rong)有多少毫克溶(rong)(rong)(rong)解(jie)性(xing)總固(gu)(gu)體。.電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)率： 水(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能力(li)的(de)(de)(de)(de)(de)(de)強弱程(cheng)度(du)(du)(du),就(jiu)(jiu)稱(cheng)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)(或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)度(du)(du)(du)),用(yong)G表(biao)示(shi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)反映了(le)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)含鹽(yan)量(liang)(liang)的(de)(de)(de)(de)(de)(de)多少,是(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)純(chun)凈(jing)程(cheng)度(du)(du)(du)的(de)(de)(de)(de)(de)(de)一個重要指標,水(shui)(shui)(shui)(shui)(shui)(shui)(shui)越(yue)(yue)純(chun)凈(jing),含鹽(yan)量(liang)(liang)越(yue)(yue)少,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)越(yue)(yue)大(da),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)越(yue)(yue)小,超純(chun)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)幾乎不(bu)能導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)是(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的(de)(de)(de)(de)(de)(de)倒數(shu),即G＝L/R 式(shi)中(zhong)R-電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu),單位(wei)(wei)歐姆(Ω)G-電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao),單位(wei)(wei)西門子(S) 1S＝103mS＝106?S因R＝ρL/F,代入上(shang)式(shi),則得到(dao)：G＝IF/(ρL)對于(yu)一對固(gu)(gu)定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)來(lai)講,二極(ji)(ji)間的(de)(de)(de)(de)(de)(de)距離不(bu)變(bian),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)面(mian)積也不(bu)變(bian),因此(ci)L與F為(wei)一個常數(shu)。令(ling)：J＝L/F,J就(jiu)(jiu)稱(cheng)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)常數(shu),可(ke)得到(dao)G＝I2/(ρJ)＝KI/J 式(shi)中(zhong)：K=1/ρ就(jiu)(jiu)稱(cheng)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)率,單位(wei)(wei)為(wei)S/cm。1S/cm＝103mS/cm＝106?S/cm。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)率K的(de)(de)(de)(de)(de)(de)意義就(jiu)(jiu)是(shi)(shi)(shi)(shi)(shi)截面(mian)積為(wei)lcm2,長(chang)度(du)(du)(du)為(wei)lcm的(de)(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)體的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)常數(shu)J=1時,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)率就(jiu)(jiu)等于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)率是(shi)(shi)(shi)(shi)(shi)不(bu)同電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)質(zhi)溶(rong)(rong)(rong)液導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能力(li)的(de)(de)(de)(de)(de)(de)表(biao)現。基本功能:
⑴開關按(an)鈕(ON.OFF/HOLD)功能：
　　　　　 開(kai)(kai)機：    ; 在關機狀態下，按動本按紐，即可開(kai)(kai)機。
自動(dong)關(guan)機:  使用后60S無操作則(ze)自動(dong)關(guan)機。
手(shou)動關機:  持續按(an)下ON.OFF/HOLD按(an)紐3S關機
手動鎖定(ding):  在TDS值較大或者(zhe)水液溫度變化自動鎖定(ding)讀數難于實現時，按動本鍵可以手動鎖定(ding)讀數。鎖定(ding)時對應物(wu)理量單(dan)位符號閃動表示(shi)。
⑵功能選擇按(an)鈕(MODE): 開機(ji)默認(ren)顯示測試(shi)水(shui)質(zhi)總固體(ti)溶解量(liang)值ppm；按(an)一次本功能鍵,顯示測試(shi)水(shui)質(zhi)電導(dao)
μs/cm值(zhi), 再(zai)按一(yi)次顯(xian)(xian)示攝氏溫度℃,再(zai)按一(yi)次,顯(xian)(xian)示華(hua)氏溫度°F；再(zai)按重復循環顯(xian)(xian)示上述內容。
⑶CLEAR鍵功能：清(qing)零。清(qing)除鎖定讀數(shu)。重新進行測(ce)試。
⑷ 自動(dong)(dong)測試和鎖(suo)定(ding)讀數:   清零后插入水中即可自動(dong)(dong)讀數,根據水質(zhi)不同(tong)顯(xian)示出對(dui)應TDS值(zhi)或者(zhe)電導率μs/cm值(zhi).然后自動(dong)(dong)鎖(suo)定(ding)，讀數鎖(suo)定(ding)狀態，其(qi)對(dui)應單位(wei)符號閃動(dong)(dong)。
⑸]刻(ke)度(du)功能(neng):  按國(guo)家標準(zhun)刻(ke)度(du).并適當參(can)照使(shi)用慣例。直飲水(shui)警示(shi)參(can)照流(liu)行采用TDS=40作分界(jie)線(xian)。低于40顯示(shi)綠(lv)背光，為(wei)(wei)合格直飲水(shui)，大于40為(wei)(wei)非直飲純(chun)凈水(shui)。
⑹背光功能(neng)： 采用低功耗背光，便(bian)于夜間和光線(xian)暗的(de)地方進(jin)行測試使用。同時(shi)兼作(zuo)水質范圍顯(xian)示。
⑺手(shou)動(dong)調整(zheng):  具(ju)有(you)手(shou)動(dong)調整(zheng)功能,便(bian)于(yu)出(chu)廠(chang)和校正時調校.
⑻大屏顯示(shi):  采(cai)用高(gao)扭曲STN薄型全(quan)透(tou)液晶屏，顯示(shi)4位數字和對應物理量(liang)單位. TDS讀數范圍(wei):0---9999,標志符;溢出，顯示(shi)Err.
⑼供電(dian)電(dian)壓:  CR2032電(dian)池(chi)，DC3V；210mAh。
3. 測試(shi)范圍(wei):     TDS:  0 ～ 9999 ppm 
4. 解析度 :      ＜1000，1ppm ，≥1000，10ppm ；自動換檔。
5. 測試精(jing)度：   ±2％
6. 溫度測試范圍：0～99 ℃(華氏度為32～212 ℉),精(jing)度±0.1℃
7. 使用環境:     0～50°C ; zui大(da)相對濕(shi)度95%