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HN LD一體式電磁流量計(jì)

概述： HN LD系列電磁流量計(jì) 測(cè)量原理是法拉第電磁感應(yīng)定律，傳感器主要組成部分是：測(cè)量管、電極、勵(lì)磁線圈、鐵芯與磁軛殼體。電磁流量計(jì) 主要用于測(cè)量封閉管道中的導(dǎo)電液體和漿液中的體積流量。包括酸、堿、鹽等強(qiáng)腐蝕性的液體。電磁流量計(jì) 廣泛應(yīng)用于石油、化工、冶金、紡織、食品、制藥、造紙等行業(yè)以及環(huán)保、市政管理，水利建設(shè)等領(lǐng)域。產(chǎn)品特點(diǎn)：1、測(cè)量不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的影響；2、測(cè)量管內(nèi)無阻礙流動(dòng)部件，無壓損，直管段要求較低；3、系列公稱通徑DN15～DN3000。傳感器襯里和電極材料有多種選擇；4、轉(zhuǎn)換器采用新穎勵(lì)磁方式，功耗低、零點(diǎn)穩(wěn)定、精確度高。流量范圍度可達(dá)1500：1；5、轉(zhuǎn)換器可與傳感器組成一體型或分離型；6、轉(zhuǎn)換器采用16位高性能微處理器，2x16LCD顯示，參數(shù)設(shè)定方便，編程；7、流量計(jì)為雙向測(cè)量系統(tǒng)，內(nèi)裝三個(gè)積算器：正向總量、反向總量及差值總量；可顯示．莊、反流量，并具有多種輸出：電流、脈沖、數(shù)字通訊、HART；8、轉(zhuǎn)換器采用表面安裝技術(shù)（SMT），具有自檢和自診斷功能；主要技術(shù)數(shù)據(jù)：整機(jī)和傳感器技術(shù)數(shù)據(jù)

執(zhí)行標(biāo)準(zhǔn)

JB／T 9248—1999

公稱通徑

15、20、25、32、40、50、65、80、100、125、150、200、250、300、350、400、450、500、600、700、800、900、1000、1200、1400、1600、1800、2000、2200、2400、2600、2800、3000

流速

15m／s

精確度

DNl5～DN600

示值的：±0.3％（流速≥1m／s）；±3mm／s（流速<1m／s）

DN700—DN3000

示值的±0.5％（流速≥0.8m／S）；±4mm／s（流速<0.8m／S）

流體電導(dǎo)率

≥5uS／cm

公稱壓力

4.0MPa

1.6MPa

1.0MPa

0.6MPa

6.3、10MPa

DNl5～DN150

DNl5～DN600

DN200～DN1000

DN700～DN3000

特殊訂貨

環(huán)境溫度

傳感器

—25℃—十60℃

轉(zhuǎn)換器及一體型

—10℃—十60℃

襯里材料

聚四氟乙烯、聚氯丁橡膠、聚氨酯、聚全氟乙丙烯（F46）、加網(wǎng)PFA

流體溫度

—體型

70℃

分離型

聚氯丁橡膠襯里

80℃；120℃（訂貨時(shí)注明）

聚氨酯襯里

80℃

聚四氟乙烯襯里

100℃；150℃（訂貨時(shí)注明）

聚全氟乙丙烯（F46）

加網(wǎng)PFA

信號(hào)電極和接地電極材料

不銹鋼0Crl8Nil2M02Ti、哈氏合金C、哈氏合金B、鈦、鉭、鉑／銥合金、不銹鋼涂覆碳化鎢

電極刮刀機(jī)構(gòu)

DN300—DN3000

連接法蘭材料

碳鋼

接地法蘭材料

不銹鋼1Crl8Ni9Ti

進(jìn)口保護(hù)法蘭材料

DN65—DNl50

不銹鋼1Crl8Ni9Ti

DN200～DNl600

碳鋼十不銹鋼1Crl8Ni9Ti

外殼防護(hù)

DNl5～DN3000分離型橡膠或聚氨酯襯里傳感器

IP65或IP68

其他傳感器、——體型流量計(jì)和分離型轉(zhuǎn)換器

IP65

間距（分離型）

轉(zhuǎn)換器距離傳感器一般不超過100m

電源

交流

85—265V，45—400Hz

直流

11—40V

操作鍵和顯示

按鍵式

4個(gè)薄膜按鍵可設(shè)定選擇全部參數(shù)，也可利用PC機(jī)（RS232）對(duì)轉(zhuǎn)換器設(shè)定編程；

3行LCD寬視角、寬溫、帶背光顯示；

第1行顯示流量值；

第2行顯示流量單位；

第3行顯示流量百分比、正向總量、反向總量、差值總量、報(bào)警、流速。

磁鍵式

2個(gè)磁鍵用于顯示參數(shù)的選擇和復(fù)位，利用PC機(jī)（RS232）對(duì)轉(zhuǎn)換器設(shè)定編程；

2行LCD寬視角、寬溫、帶背光顯示：

第1行:磁鍵選擇:顯示流量百分比、正向總量、反向總量、差值總量、報(bào)警、流速。

第2行：顯示流量。

內(nèi)部積算器

正向總量、反向總量及差值總量。

輸出信號(hào)

單向模擬輸出

全隔離，負(fù)載≤600D．（20mA時(shí)）；

上限：0—21mA可選，每檔lmA；

下限：0—21mA可選，每檔1mA；

正、反向流量輸出方式編程。

雙向模擬輸出

下限限制為。或4mA，其他同單向模擬輸出。

雙向脈沖輸出

兩路輸出分別對(duì)應(yīng)正向和反向流量,頻率0～800Hz,上限1—800Hz可選,每檔IHz；

方波或選定脈寬，選定脈寬上限2．5S，每檔1ms；

無源隔離晶體管開關(guān)輸出，可吸收250mA的電流，耐壓35V。

雙路報(bào)警輸出

可報(bào)警（編程）高／低流量、空管、故障狀態(tài)、正，，反向流量、模擬量超量程、脈沖量超量程、脈沖小信號(hào)切除，輸出極性可選；

帶隔離保護(hù)的晶體管開關(guān)輸出,可吸收250mA的電流,耐壓35V.（與脈沖輸出不隔離）

數(shù)字通訊

RS232，RS485，HART

襯里材料

主要性能

介質(zhì)溫度

適用范圍

—體型

分離型

聚四氟乙烯（F4）

是化學(xué)性能最穩(wěn)定的一種塑料，能耐沸騰的鹽酸、硫酸、硝酸和王水，也能耐濃堿和各種有機(jī)溶劑。不耐三氟化氯、高溫三氟化氯、高流速液氟、液氧、自氧的腐蝕。

70℃

100℃ 150℃ （需特殊訂貨）

1、濃酸、堿等強(qiáng)腐蝕性介質(zhì)。 2、衛(wèi)生類介質(zhì)。

聚全氟乙丙烯（F46）

同F4，耐磨性、抗負(fù)壓能力高于F4。

同上

聚氟合乙烯（Fs）

適用溫度上限較聚四氟乙烯低，但成本也較低。

80℃

聚氯丁橡膠

1、有極好的彈性，高度的扯斷力，耐磨性能好。2、耐一般低濃度酸、堿、鹽介質(zhì)的腐蝕，不耐氧化介質(zhì)的腐蝕。

80℃ 120℃ （需特殊訂貨）

水、污水、弱磨損性的泥漿礦漿。

聚氨酯橡膠

1、耐磨性能極強(qiáng)。

2、耐腐蝕性能較差。

80℃

中性強(qiáng)磨損的礦漿、煤漿、泥漿

蘭種類	適用范圍
接地法蘭（或接地環(huán)）	適用于非導(dǎo)體管道，如塑料管道，但有接地電極的傳感器不需要。
進(jìn)口保護(hù)法蘭	當(dāng)介質(zhì)有強(qiáng)磨損性時(shí)選用。

電極的選擇

電極材料	耐蝕及耐磨性能
不銹鋼0Crl8Nil2M02Ti	用于工業(yè)用水、生活用水、污水等具有弱腐蝕性的介質(zhì)，適用于石油、化工、鋼鐵等工業(yè)部門及，市政、環(huán)保等領(lǐng)域。
哈氏合金B	對(duì)沸點(diǎn)以下的一切濃度的鹽酸有良好的耐蝕性，也耐硫酸、磷酸、氫氟酸、有機(jī)酸等非氯化性酸、堿，非氧化性鹽液的腐蝕。
哈氏合金C	能耐非氧化性酸，如硝酸、混酸、或鉻酸與硫酸的混合介質(zhì)的腐蝕，也耐氧化性鹽類如：Fe，”、、Cu”下或含其他氧化劑的腐蝕，如高于常溫的次氯酸鹽溶液、海水的腐蝕
鈦	能耐海水、各種氯化物和次氯酸鹽、氧化性酸（包括發(fā)煙硫酸）、有機(jī)酸、堿的腐蝕。不耐較純的還原性酸（如硫酸、鹽酸）的腐蝕，但如酸中含有氧化劑（如硝酸、Fc＋＋、Cu＋＋）時(shí)，則腐蝕大為降低。
鉭	具有優(yōu)良的耐蝕性和玻璃很相似。除了氫氟酸、發(fā)煙硫酸、堿外，幾乎能耐——切化學(xué)介質(zhì)（包括沸點(diǎn)的鹽酸、硝酸和l 50℃以下的硫酸）的腐蝕。在堿中刁；耐蝕。
鉑／鈦合金	幾乎能耐——切化學(xué)介質(zhì)，但不適用于王水和銨鹽。
不銹鋼涂覆碳化鎢	用于無腐蝕性，強(qiáng)磨損性的介質(zhì)。
注：由于介質(zhì)種類繁多，其腐蝕性又受溫度、濃度、流速等復(fù)雜因素影響而變化，故本表僅供參考。用戶應(yīng)根據(jù)實(shí)際情況自己做出選擇，必要時(shí)應(yīng)做擬選材料的耐腐試驗(yàn)，如掛片試驗(yàn)。

HN LD系列電磁流量計(jì)儀表選型◆量程范圍確認(rèn)一般工業(yè)用電磁流量計(jì) 被測(cè)介質(zhì)流速以2～4m/s為宜，在特殊情況下，流速應(yīng)不小于0.2m/s，應(yīng)不大于8m/s。若介質(zhì)中含有固體顆粒，常用流速應(yīng)小于3m/s，防止襯里和電極的過分磨擦；對(duì)于粘滯流體，流速可選擇大于2m/s，較大的流速有助于自動(dòng)消除電極上附著的粘滯物的作用，有利于提高測(cè)量精度。在量程Q已確定的條件下，即可根據(jù)上述流速V的范圍決定流量計(jì)口徑D的大小，其值由下式計(jì)算：Q=πD2V/4Q:流量（㎡/h） D:管道內(nèi)徑 V：流速（m/h）電磁流量計(jì) 的量程Q應(yīng)大于預(yù)計(jì)的最大流量值，而正常的流量值以稍大于流量計(jì)滿量程刻度的50為宜�！鬑N LD系列電磁流量計(jì)參考流量范圍

口徑mm

流量范圍m3/h

口徑mm

流量范圍m3/h

φ15

0.06~6.36

φ450

57.23～5722.65

φ20

0.11～11.3

φ500

70.65～7065.00

φ25

0.18～17.66

φ600

101.74～10173.6

φ40

0.45～45.22

φ700

138.47～13847.4

φ50

0.71～70.65

φ800

180.86～18086.4

φ65

1.19～119.4

φ900

228.91～22890.6

φ80

1.81～180.86

φ1000

406.94～40694.4

φ100

2.83～282.60

φ1200

553.90～55389.6

φ150

6.36～635.85

φ1600

723.46～72345.6

φ200

11.3～1130.4

φ1800

915.62～91562.4

φ250

17.66～176.25.

φ2000

1130.4～113040.00

φ300

25.43～2543.40

φ2200

1367.78～136778.4

φ350

34.62～3461.85

φ2400

1627.78～162777.6

φ400

45.22～4521.6

φ2600

1910.38～191037.6

型號(hào)	口徑
HN LD	15~2600
		代號(hào)	安裝形式
		Y	一體式
		F	分體式
			代號(hào)	轉(zhuǎn)換器型號(hào)
			ZA	圓形
			ZB	方形
				代號(hào)	輸出信號(hào)
				I.4	4~20mA
				f	頻率 1KHz
				Rs	串行通訊（485）
				C	控制輸出
					代號(hào)	防爆要求
					N	無防爆
					EX	防爆（僅適用于分體式）
						代號(hào)	介質(zhì)溫度
						T1	≤65℃
						T2	≤120℃
						T3	≤180℃（僅適用于分體式）
							代號(hào)	內(nèi)襯材質(zhì)
							NE	氯丁橡膠（≤65℃）
							PTFE	聚四氟乙烯（≤189℃）
							PVC	聚氯乙烯（≤70℃）
								代號(hào)	電極材質(zhì)
								316L	不銹鋼
								HC	哈氏合金C
								HB	哈氏合金B(yǎng)
								Ti	鈦
								Ta	鉭

該公司產(chǎn)品分類：變送器效驗(yàn)儀表記錄儀數(shù)顯儀表液位儀表溫度計(jì) 熱電偶/阻壓力儀表流量儀表

防腐電磁流量計(jì)/污水電磁流量計(jì)/污水流量計(jì)

防腐電磁流量計(jì)/污水電磁流量計(jì)/污水流量計(jì)電磁流量計(jì) /自來水流量計(jì)/水計(jì)量表-江蘇三豐儀表科技有限公司質(zhì)量至上，誠信為本，服務(wù)上乘。為廣大客戶提供產(chǎn)品咨詢，選型指導(dǎo)，報(bào)價(jià)等服務(wù)，歡迎廣大客戶訂購！聯(lián)系電話：0517-86990003傳真：0517-86992223手機(jī)/V信：18915199993 qq：413955085

一、電磁流量計(jì)概述電磁流量計(jì)測(cè)量原理是法拉第電磁感應(yīng)定律，傳感器主要組成部分是：測(cè)量管、電極、勵(lì)磁線圈、鐵芯與磁軛殼體。它主要用于測(cè)量封閉管道中的導(dǎo)電液體和漿液中的體積流量。包括酸、堿、鹽等強(qiáng)腐蝕性的液體。該產(chǎn)品廣泛應(yīng)用于石油、化工、冶金、紡織、食品、制藥、造紙等行業(yè)以及環(huán)保、市政管理，水利建設(shè)等領(lǐng)域。SF-LDE電磁流量計(jì)是一種根據(jù)法拉第電磁感應(yīng)定律來測(cè)量管內(nèi)導(dǎo)電介質(zhì)體積流量的感應(yīng)式儀表，采用單片機(jī)嵌入式技術(shù)，實(shí)現(xiàn)數(shù)字勵(lì)磁，同時(shí)在電磁流量計(jì)上采用CAN現(xiàn)場(chǎng)總線，屬國內(nèi)首創(chuàng)，技術(shù)達(dá)到國內(nèi)領(lǐng)先水平。二、電磁流量計(jì)性能特點(diǎn) １、測(cè)量不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的影響；２、測(cè)量管內(nèi)無阻礙流動(dòng)部件，無壓損，直管段要求較低；３、系列公稱通徑DN15～DN3000。傳感器襯里和電極材料有多種選擇；４、轉(zhuǎn)換器采用新穎勵(lì)磁方式，功耗低、零點(diǎn)穩(wěn)定、精確度高。流量范圍度可達(dá)1500：1；５、轉(zhuǎn)換器可與傳感器組成一體型或分離型；６、轉(zhuǎn)換器采用16位高性能微處理器，2x16LCD顯示，參數(shù)設(shè)定方便，編程；７、流量計(jì)為雙向測(cè)量系統(tǒng)，內(nèi)裝三個(gè)積算器：正向總量、反向總量及差值總量；可顯示．莊、反流量，并具有多種輸出：電流、脈沖、數(shù)字通訊、HART；８、電磁流量計(jì)轉(zhuǎn)換器采用表面安裝技術(shù)（SMT），具有自檢和自診斷功能；技術(shù)參數(shù)整機(jī)和傳感器技術(shù)數(shù)據(jù)執(zhí)行標(biāo)準(zhǔn)JB／T 9248—1999公稱通徑15、20、25、32、40、50、65、80、100、125、150、200、250、300、350、400、450、500、600、700、800、900、1000、1200、1400、1600、1800、2000、2200、2400、2600、2800、3000流速15m／s精確度DNl5～DN600示值的：±0.3％（流速≥1m／s）；±3mm／s（流速<1m／s）DN700—DN3000示值的±0.5％（流速≥0.8m／S）；±4mm／s（流速<0.8m／S）流體電導(dǎo)率≥5uS／cm?公稱壓力4.0MPa1.6MPa1.0MPa0.6MPa6.3、10MPaDNl5～DN150DNl5～DN600DN200～DN1000DN700～DN3000特殊訂貨環(huán)境溫度傳感器—25℃—十60℃轉(zhuǎn)換器及一體型—10℃—十60℃襯里材料聚四氟乙烯、聚氯丁橡膠、聚氨酯、聚全氟乙丙烯（F46）、加網(wǎng)PFA流體溫度—體型70℃分離型聚氯丁橡膠襯里80℃；120℃（訂貨時(shí)注明）聚氨酯襯里80℃聚四氟乙烯襯里100℃；150℃（訂貨時(shí)注明）聚全氟乙丙烯（F46）加網(wǎng)PFA信號(hào)電極和接地電極材料不銹鋼0Crl8Nil2M02Ti、哈氏合金C、哈氏合金B(yǎng)、鈦、鉭、鉑／銥合金、不銹鋼涂覆碳化鎢電極刮刀機(jī)構(gòu)DN300—DN3000連接法蘭材料碳鋼接地法蘭材料不銹鋼1Crl8Ni9Ti進(jìn)口保護(hù)法蘭材料DN65—DNl50不銹鋼1Crl8Ni9TiDN200～DNl600碳鋼十不銹鋼1Crl8Ni9Ti外殼防護(hù)DNl5～DN3000分離型橡膠或聚氨酯襯里傳感器IP65或IP68其他傳感器、——體型流量計(jì)和分離型轉(zhuǎn)換器IP65間距（分離型）轉(zhuǎn)換器距離傳感器一般不超過100m

防腐電磁流量計(jì)/污水電磁流量計(jì)/污水流量計(jì) 電磁流量計(jì)轉(zhuǎn)換器技術(shù)數(shù)據(jù)電源交流85—265V，45—400Hz直流11—40V操作鍵和顯示按鍵式4個(gè)薄膜按鍵可設(shè)定選擇全部參數(shù)，也可利用PC機(jī)（RS232）對(duì)轉(zhuǎn)換器設(shè)定編程；3行LCD寬視角、寬溫、帶背光顯示；第1行顯示流量值；第2行顯示流量單位；第3行顯示流量百分比、正向總量、反向總量、差值總量、報(bào)警、流速。

磁鍵式2個(gè)磁鍵用于顯示參數(shù)的選擇和復(fù)位，利用PC機(jī)（RS232）對(duì)轉(zhuǎn)換器設(shè)定編程；2行LCD寬視角、寬溫、帶背光顯示：第1行:磁鍵選擇:顯示流量百分比、正向總量、反向總量、差值總量、報(bào)警、流速。第2行：顯示流量。

內(nèi)部積算器正向總量、反向總量及差值總量。輸出信號(hào)單向模擬輸出全隔離，負(fù)載≤600D．（20mA時(shí)）；上限：0—21mA可選，每檔lmA；下限：0—21mA可選，每檔1mA；正、反向流量輸出方式編程。

雙向模擬輸出下限限制為�；�4mA，其他同單向模擬輸出。雙向脈沖輸出兩路輸出分別對(duì)應(yīng)正向和反向流量,頻率0～800Hz,上限1—800Hz可選,每檔IHz；方波或選定脈寬，選定脈寬上限2．5S，每檔1ms；無源隔離晶體管開關(guān)輸出，可吸收250mA的電流，耐壓35V。

雙路報(bào)警輸出可報(bào)警（編程）高／低流量、空管、故障狀態(tài)、正，，反向流量、模擬量超量程、脈沖量超量程、脈沖小信號(hào)切除，輸出極性可選；帶隔離保護(hù)的晶體管開關(guān)輸出,可吸收250mA的電流,耐壓35V.（與脈沖輸出不隔離）

數(shù)字通訊　RS232，RS485，HART

防腐電磁流量計(jì)/污水電磁流量計(jì)/污水流量計(jì)電磁流量計(jì)襯里的選擇襯里材料主要性能?介質(zhì)溫度適用范圍—體型分離型　聚四氟乙烯（F4）是化學(xué)性能最穩(wěn)定的一種塑料，能耐沸騰的鹽酸、硫酸、硝酸和王水，也能耐濃堿和各種有機(jī)溶劑。不耐三氟化氯、高溫三氟化氯、高流速液氟、液氧、自氧的腐蝕。70℃100℃ 150℃ （需特殊訂貨）1、濃酸、堿等強(qiáng)腐蝕性介質(zhì)。 2、衛(wèi)生類介質(zhì)。聚全氟乙丙烯（F46）同F(xiàn)4，耐磨性、抗負(fù)壓能力高于F4。同上　聚氟合乙烯（Fs）適用溫度上限較聚四氟乙烯低，但成本也較低。80℃　聚氯丁橡膠1、有極好的彈性，高度的扯斷力，耐磨性能好。2、耐一般低濃度酸、堿、鹽介質(zhì)的腐蝕，不耐氧化介質(zhì)的腐蝕。80℃ 120℃ （需特殊訂貨）水、污水、弱磨損性的泥漿礦漿。聚氨酯橡膠1、耐磨性能極強(qiáng)。2、耐腐蝕性能較差。80℃中性強(qiáng)磨損的礦漿、煤漿、泥漿

防腐電磁流量計(jì)/污水電磁流量計(jì)/污水流量計(jì) 進(jìn)口保護(hù)法蘭和接地法蘭（或接地環(huán)）的選擇法蘭種類適用范圍接地法蘭（或接地環(huán)）適用于非導(dǎo)體管道，如塑料管道，但有接地電極的傳感器不需要。進(jìn)口保護(hù)法蘭當(dāng)介質(zhì)有強(qiáng)磨損性時(shí)選用。

防腐電磁流量計(jì)/污水電磁流量計(jì)/污水流量計(jì)電磁流量計(jì)電極的選擇電極材料耐蝕及耐磨性能不銹鋼0Crl8Nil2M02Ti用于工業(yè)用水、生活用水、污水等具有弱腐蝕性的介質(zhì)，適用于石油、化工、鋼鐵等工業(yè)部門及，市政、環(huán)保等領(lǐng)域。哈氏合金B(yǎng)對(duì)沸點(diǎn)以下的一切濃度的鹽酸有良好的耐蝕性，也耐硫酸、磷酸、氫氟酸、有機(jī)酸等非氯化性酸、堿，非氧化性鹽液的腐蝕。哈氏合金C能耐非氧化性酸，如硝酸、混酸、或鉻酸與硫酸的混合介質(zhì)的腐蝕，也耐氧化性鹽類如：Fe，”、、Cu”下或含其他氧化劑的腐蝕，如高于常溫的次氯酸鹽溶液、海水的腐蝕鈦能耐海水、各種氯化物和次氯酸鹽、氧化性酸（包括發(fā)煙硫酸）、有機(jī)酸、堿的腐蝕。不耐較純的還原性酸（如硫酸、鹽酸）的腐蝕，但如酸中含有氧化劑（如硝酸、Fc＋＋、Cu＋＋）時(shí)，則腐蝕大為降低。鉭具有優(yōu)良的耐蝕性和玻璃很相似。除了氫氟酸、發(fā)煙硫酸、堿外，幾乎能耐——切化學(xué)介質(zhì)（包括沸點(diǎn)的鹽酸、硝酸和l 50℃以下的硫酸）的腐蝕。在堿中刁；耐蝕。鉑／鈦合金幾乎能耐——切化學(xué)介質(zhì)，但不適用于王水和銨鹽。不銹鋼涂覆碳化鎢用于無腐蝕性，強(qiáng)磨損性的介質(zhì)。注：由于介質(zhì)種類繁多，其腐蝕性又受溫度、濃度、流速等復(fù)雜因素影響而變化，故本表僅供參考。用戶應(yīng)根據(jù)實(shí)際情況自己做出選擇，必要時(shí)應(yīng)做擬選材料的耐腐試驗(yàn)，如掛片試驗(yàn) 電磁流量計(jì)儀表選型◆量程范圍確認(rèn)一般工業(yè)用電磁流量計(jì)被測(cè)介質(zhì)流速以2～4m/s為宜，在特殊情況下，流速應(yīng)不小于0.2m/s，應(yīng)不大于8m/s。若介質(zhì)中含有固體顆粒，常用流速應(yīng)小于3m/s，防止襯里和電極的過分磨擦；對(duì)于粘滯流體，流速可選擇大于2m/s，較大的流速有助于自動(dòng)消除電極上附著的粘滯物的作用，有利于提高測(cè)量精度。在量程Q已確定的條件下，即可根據(jù)上述流速V的范圍決定流量計(jì)口徑D的大小，其值由下式計(jì)算：Q=πD2V/4Q:流量（㎡/h） D:管道內(nèi)徑 V：流速（m/h）電磁流量計(jì)的量程Q應(yīng)大于預(yù)計(jì)的最大流量值，而正常的流量值以稍大于流量計(jì)滿量程刻度的50為宜�！鬝FLD系列電磁流量計(jì)參考流量范圍口徑mm流量范圍m3/h口徑mm流量范圍m3/hφ150.06~6.36φ45057.23～5722.65φ200.11～11.3φ50070.65～7065.00φ250.18～17.66φ600101.74～10173.6φ400.45～45.22φ700138.47～13847.4φ500.71～70.65φ800180.86～18086.4φ651.19～119.4φ900228.91～22890.6φ801.81～180.86φ1000406.94～40694.4φ1002.83～282.60φ1200553.90～55389.6φ1506.36～635.85φ1600723.46～72345.6φ20011.3～1130.4φ1800915.62～91562.4φ25017.66～176.25.φ20001130.4～113040.00φ30025.43～2543.40φ22001367.78～136778.4φ35034.62～3461.85φ24001627.78～162777.6φ40045.22～4521.6φ26001910.38～191037.6

四、電磁流量計(jì)訂貨及售后服務(wù)1、訂貨時(shí)請(qǐng)?zhí)峁┮韵聰?shù)據(jù)：被測(cè)介質(zhì)名稱。最大、常用、最小流量。工作壓力、工作溫度介質(zhì)密度、粘度（水，蒸汽，常用氣體可以不提供）管道材質(zhì)、內(nèi)徑、外徑2、本公司產(chǎn)品一律實(shí)行三包制度，質(zhì)保期內(nèi)無條件更換維修產(chǎn)品及零部件，質(zhì)保期外只收取更換產(chǎn)品零部件成本費(fèi)用五、注意事項(xiàng) 的現(xiàn)場(chǎng)應(yīng)用經(jīng)驗(yàn)告訴我們，流量計(jì)在使用當(dāng)中出現(xiàn)的問題，80％以上是由于選型不當(dāng)造成的，所以請(qǐng)?zhí)峁┰敿?xì)的技術(shù)數(shù)據(jù)，我們將向您提供最適合的產(chǎn)品

該公司產(chǎn)品分類：熱式氣體質(zhì)量流量計(jì) 質(zhì)量流量計(jì) 浮子(轉(zhuǎn)子）流量計(jì) PH計(jì) 在線密度計(jì) 分析儀表電容式液位計(jì) 腰輪流量計(jì) 雙色石英管液位計(jì) 壓力式液位計(jì) 浮球液位計(jì) 壓差流量計(jì) 超聲波液位計(jì) 雷達(dá)液位計(jì) 磁翻板液位計(jì) 變送器傳感器料位開關(guān) 差壓變送器壓力開關(guān)

管道式電磁流量計(jì)，污水流量計(jì)，自來水電磁流量計(jì)

一、產(chǎn)品特點(diǎn)、用途和適用范圍

1.1特點(diǎn)

●電磁流量計(jì)，具有以下特點(diǎn)：

●不受流體密度、粘度、溫度、壓力和電率變化的影響，線性測(cè)量原理能實(shí)現(xiàn)高精確度測(cè)量；

●測(cè)量管內(nèi)無阻流件，壓損小，直管段要求低；

●公稱通徑DN6-DN2000覆蓋范圍寬，襯里和電極有多種選擇，能滿足測(cè)量多種導(dǎo)電流體的要求；

●轉(zhuǎn)換器采用可編程頻率低頻矩形波勵(lì)磁，提高了流量測(cè)量的穩(wěn)定性，功率損耗��；

●轉(zhuǎn)換器采用16位嵌入式微處理器，全數(shù)字處理，運(yùn)算速度快，抗干擾能力強(qiáng)，測(cè)量，精確度高，流量測(cè)量范圍度可達(dá)1500：1；

●高清晰度背光LCD顯示，全漢字菜單操作，使用方便，操作簡單，易學(xué)易懂；

●具有RS485或RS232O數(shù)字通訊信號(hào)輸出；

●具有電導(dǎo)率測(cè)量功能，可以判別傳感器是否空管，具有自檢與自診斷功能；

●采用SMD器件和表面安裝（SMT）技術(shù)，電路性高；

●可用于相應(yīng)的防爆場(chǎng)合。

1．2主要用途

系列電磁流量計(jì)，可用來測(cè)量封閉管道中導(dǎo)電流體的體積流量。廣泛應(yīng)用于石油化工、鋼鐵冶金、給水排水、水利灌溉、水處理、環(huán)保污水測(cè)控、造紙、醫(yī)藥、食品等工農(nóng)業(yè)生產(chǎn)工藝過程中的流量測(cè)量和控制。

1．3使用環(huán)境條件

環(huán)境溫度：傳感器-25℃～+60℃ 轉(zhuǎn)換器-10℃～+60℃

相對(duì)溫度： 5%-95%

1．4工作條件

流體溫度：一體型 70℃

分離型：聚四氟乙烯襯里 150℃

氯丁橡膠襯里 80℃

聚氨酯橡膠襯里 70℃

流體電導(dǎo)率： ≥5uS/cm

二、工作原理

2．1數(shù)學(xué)物理模型

電磁流量計(jì)的工作原理基于法拉第電磁感應(yīng)法律。當(dāng)一個(gè)導(dǎo)體在磁場(chǎng)場(chǎng)內(nèi)運(yùn)動(dòng)時(shí)，在與磁場(chǎng)方向、運(yùn)動(dòng)方向相互垂直方向的導(dǎo)體兩端，會(huì)產(chǎn)生感應(yīng)電動(dòng)勢(shì)。電動(dòng)勢(shì)的大小與導(dǎo)體運(yùn)動(dòng)速度和磁場(chǎng)的磁感應(yīng)強(qiáng)度大小成正比。

如圖一，當(dāng)導(dǎo)電流體以平均流速V（m/s）通過裝有一對(duì)測(cè)量電極的一根內(nèi)徑為D（m）的絕緣導(dǎo)管內(nèi)流動(dòng)時(shí)，該管道處于一個(gè)均勻的磁感應(yīng)強(qiáng)度為B（T）的磁場(chǎng)中，那么在一對(duì)電極上就會(huì)產(chǎn)生感應(yīng)電動(dòng)勢(shì)E（V），它的方向垂直于磁場(chǎng)和流體的方向。

法拉第電磁感應(yīng)定律為：E=B·D·V （1）

流量的體積流量為：（2）

由公式（1）和（2）可得到： m³/h）（3）

因此電動(dòng)勢(shì)可表示為：（4）

當(dāng)B是一個(gè)常數(shù)時(shí)，對(duì)某一個(gè)固定的口徑D也是一個(gè)已知數(shù)，公式（3）中 =K（一個(gè)常數(shù)），那么公式（3）可改寫為： Q_V=K·E （m³/h）（5）

從公式（5）可以看出，流量Q_V與電動(dòng)勢(shì)E成正比。

2.2轉(zhuǎn)換器電路結(jié)構(gòu)

電磁流量轉(zhuǎn)換器一方面向電磁流量傳感器勵(lì)磁線圈提供穩(wěn)定的勵(lì)磁電流,以達(dá)到B是一個(gè)常數(shù),同時(shí)把傳感器感應(yīng)的電動(dòng)勢(shì)放大\\轉(zhuǎn)換成標(biāo)準(zhǔn)的電流信號(hào)或頻率信號(hào),便于流量的顯示,控制與調(diào)節(jié).圖二所示為轉(zhuǎn)換器電路結(jié)構(gòu)。

DN15-DN2800飲用水礦泉水電磁流量計(jì)，高精度衛(wèi)生型電磁流量計(jì)

　南通國儀自動(dòng)化儀表有限公司是一家集研發(fā)、生產(chǎn)、銷售為一體的高新技術(shù)企業(yè)，主要產(chǎn)品有電磁流量計(jì)、渦街流量計(jì)、超聲波流量計(jì)、渦輪流量計(jì)、金屬轉(zhuǎn)子流量計(jì)及各種節(jié)流裝置等。　　南通國儀自動(dòng)化儀表有限公司位于南通港閘經(jīng)濟(jì)開發(fā)區(qū)，技術(shù)力量雄厚，與南通大學(xué)高校合作，建有流體力學(xué)國家重點(diǎn)實(shí)驗(yàn)室；在上海和江蘇無錫設(shè)有產(chǎn)品研制中心。南通國儀擁有專業(yè)設(shè)計(jì)、定制的具有領(lǐng)先水平的流量計(jì)生產(chǎn)線、具備的生產(chǎn)能力，并且擁有國內(nèi)的的檢測(cè)裝置及標(biāo)定系統(tǒng)，確保所生產(chǎn)的產(chǎn)品具有高性能、高性�！　」旧a(chǎn)的電磁流量計(jì)有：一體型電磁流量計(jì)（夾持型，法蘭型），分體型電磁流量計(jì)（夾持型，法蘭型），潛水型電磁流量計(jì)，防爆電磁流量計(jì)（隔爆），衛(wèi)生型電磁流量計(jì)（食品級(jí)），高精度電磁流量計(jì)（精度0.2級(jí)，0.2%），微小流量電磁流量計(jì)，消防水流量計(jì)，泥漿流量計(jì)，礦漿流量計(jì)，全不銹鋼電磁流量計(jì)，紙漿專用流量計(jì)，電磁熱能表（電磁熱量計(jì)）等，填補(bǔ)了國內(nèi)多項(xiàng)空白。用于石化，化工，造紙，印染，水處理，環(huán)保，電力，樓宇工程等。

LED電磁流量計(jì)

智能電磁流量計(jì)性能特點(diǎn):

◆測(cè)量精度不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的影響，傳感器感應(yīng)電壓信號(hào)與平均流速呈線性關(guān)系，因此測(cè)量精度高。

◆測(cè)量管道內(nèi)無阻流件，因此沒有附加的壓力損失；測(cè)量管道內(nèi)無可動(dòng)部件，因此傳感器壽命極長。

◆由于感應(yīng)電壓信號(hào)是在整個(gè)充滿磁場(chǎng)的空間中形成的，是管道載面上的平均值，因此傳感器所需的直管段較短，長度為5倍的管道直徑。

◆傳感器部分只有內(nèi)襯和電極與被測(cè)液體接觸，只要合理選擇電極和內(nèi)襯材料，即可耐腐蝕和耐磨損。

◆LDE轉(zhuǎn)換器采用國際進(jìn)的單片機(jī)（MCU）和表面貼裝技術(shù)（SMT），性能，精度高，功耗低，零點(diǎn)穩(wěn)定，參數(shù)設(shè)定方便。點(diǎn)擊中文顯示LCD，顯示累積流量，瞬時(shí)流量、流速、流量百分比等。

◆雙向測(cè)量系統(tǒng)，可測(cè)正向流量、反向流量。采用特殊的生產(chǎn)工藝和材料，確保產(chǎn)品的性能在長時(shí)候內(nèi)保持穩(wěn)定。

智能電磁流量計(jì)測(cè)量原理：

SY-LDE型智能電磁流量計(jì)的測(cè)量原理是基于法拉第電磁感應(yīng)定律：導(dǎo)電液體在磁場(chǎng)中作切割磁力線運(yùn)動(dòng)時(shí)，導(dǎo)體中產(chǎn)生感應(yīng)電勢(shì)，其感應(yīng)電勢(shì)E為：

E=KBVD

式中：K－－－－儀表常數(shù)

B－－－－磁感應(yīng)強(qiáng)度

V－－－－測(cè)量管道截面內(nèi)的平均流速

D－－－－測(cè)量管道截面的內(nèi)徑

測(cè)量流量時(shí)，導(dǎo)電性液體以速度V流過垂直于流動(dòng)方向的磁場(chǎng)，導(dǎo)電性液體的流動(dòng)感應(yīng)出一個(gè)與平均流速成正比的電壓，其感應(yīng)電壓信號(hào)通過二個(gè)或二個(gè)以上與液體直接接觸的電極撿出，并通過電纜送至轉(zhuǎn)換器通過智能化處理，然后LCD顯示或轉(zhuǎn)換成標(biāo)準(zhǔn)信號(hào)4～20ma和0－1khz輸出。

如何正確選型：

儀表的選型是儀表應(yīng)用中非常重要的工作，有關(guān)資料表明，儀表在實(shí)際應(yīng)用中有2/3的故障是儀表的錯(cuò)誤選型或錯(cuò)誤的安裝而造成的，請(qǐng)?zhí)貏e注意。

◆收集數(shù)據(jù)：

1.被測(cè)流體成份

2.最大流量、最小流量

3.工作壓力

4.溫度、溫度

◆被測(cè)流體必須具備一定的導(dǎo)電性，導(dǎo)電率>5μS/CM

最大流量和最小流量必須符合下表中的數(shù)：

口徑mm	流量范圍m³/h	口徑mm	流量范圍m³/h
φ15	0.0636~6.36	φ450	57.23～5722.65
φ20	0.11～11.30	φ500	70.65～7065.00
φ25	0.18～17.66	φ600	101.74～10173.6
φ40	0.45～45.22	φ700	138.47～13847.4
φ50	0.71～70.65	φ800	180.86～18086.4
φ65	1.19～119.4	φ900	228.91～22890.6
φ80	1.81～180.86	φ1000	406.94～40694.4
φ100	2.83～282.60	φ1200	553.90～55389.6
φ150	6.36～635.85	φ1600	723.46～72345.6
φ200	11.3～1130.4	φ1800	915.62～91562.4
φ250	17.66～176.25.	φ2000	1130.4～113040.00
φ300	25.43～2543.40	φ2200	1367.78～136778.4
φ350	34.62～3461.85	φ2400	1627.78～162777.6
φ400	45.22～4521.6	φ2600	1910.38～191037.6

◆實(shí)際工作壓力必須小于流量計(jì)的額定工作壓力。

◆工作溫度和溫度必須符合流量計(jì)規(guī)定的溫度要求。

◆確定是否有負(fù)壓情況存在。

您可以根據(jù)上表中的流量選擇相應(yīng)的電磁流量計(jì)，若所選擇的電磁流量計(jì)的內(nèi)徑與現(xiàn)在工藝管道的內(nèi)徑不符，應(yīng)進(jìn)行縮管或擴(kuò)管。

◆若管道進(jìn)行縮管，應(yīng)考慮由于縮管引起的壓力損失是否會(huì)影響工藝流程。

◆從產(chǎn)品價(jià)格考慮，可以選擇較小口徑的電磁流量計(jì)，相對(duì)減少投資。

◆測(cè)潔凈水時(shí)，經(jīng)濟(jì)流速時(shí)1.5－3m/s，測(cè)易結(jié)晶的溶液時(shí)，應(yīng)適當(dāng)?shù)靥岣吡魉伲?－4m/s為宜，起到自清掃，防止粘附沉積等作用；測(cè)礦漿等磨◆耗性流體時(shí)，應(yīng)適當(dāng)降低流速，1.0－2m/s為宜，以降低對(duì)內(nèi)襯和電極地磨損。實(shí)際應(yīng)用很少超過7m/s，超過10m/s則更為罕見。

智能電磁流量計(jì)型譜：

型號(hào)	口徑
SY-LDE	15~2600
		代號(hào)	電極材料
		K1	316L
		K2	HB
		K3	HC
		K4	鈦
		K5	鉭
		K6	鉑合金
		K7	不銹鋼涂覆碳化鎢
			代號(hào)	內(nèi)襯材料
			C1	聚四氟乙烯（F4）
			C2	聚全氟乙丙烯（F46）
			C3	聚氟合乙烯（FS）
			C4	聚錄丁橡膠
			C5	聚氨脂橡膠
				代號(hào)	功能
				E1	0.3級(jí)
				E2	0.5級(jí)
				E3	1級(jí)
				F1	4－20Madc,負(fù)載≤750Ω
				F2	0-3khz,5v有源，可變脈寬，輸出頻率
				F3	RS485接口
				T1	常溫型
				T2	高溫型
				T3	超高溫型
				P1	1．0MPa
				P2	1．6MPa
				P3	4．0MPa
				P4	16MPa
				D1	220VAC±10％
				D2	24VDC±10％
				J1	一體型結(jié)構(gòu)
				J2	分體型結(jié)構(gòu)
				J3	防爆一體型結(jié)構(gòu)

您還可搜索以下關(guān)鍵詞搜索公司產(chǎn)品：電磁流量計(jì)，超聲波流量計(jì)，渦輪流量計(jì)，浮子流量計(jì)，轉(zhuǎn)子流量計(jì)

該公司產(chǎn)品分類：壓力表系列校驗(yàn)儀表系列顯示儀表系列流量計(jì)系列磁翻板液位計(jì) 物位計(jì)系列壓力泵系列溫度儀表系列變送器系列

E+H電磁流量計(jì)

E+H流量計(jì)

E+H電磁流量計(jì)E+H E+H質(zhì)量流量計(jì)E+H E+H渦街流量計(jì)E+H E+H超聲波流量計(jì)E+H

E+H流量儀表：1、E+H電磁流量計(jì)：提供了高量程比的高精度測(cè)量�？捎糜趪�(yán)格的衛(wèi)生場(chǎng)合，并提供適用于危險(xiǎn)場(chǎng)合的安全認(rèn)證。型號(hào)有:50W/53W,50P/53P,50H/53H,10W,10H,10P,23H,23P,55S/55H55S電磁流量計(jì) 55H電磁流量計(jì)

2、E+H渦街流量計(jì)：用來測(cè)量氣體、蒸氣和液體的流量。安裝成本低，壓損小，長時(shí)間穩(wěn)定性及寬動(dòng)態(tài)測(cè)量范圍。主要型號(hào)有:72F,73F,72W Prowirl 72W渦街流量計(jì) Prowirl 72F渦街流量計(jì) Prowirl 73F渦街流量計(jì) Prowirl 73W渦街流量計(jì)

3、E+H熱式質(zhì)量流量計(jì)：用來測(cè)量氣體的流量，操作簡便，無壓損及寬動(dòng)態(tài)測(cè)量范圍。主要型號(hào)有:80/83F,80/83E,80/83H,80/83M,80/83A,80/83I,40E,84F,84M 84F質(zhì)量流量計(jì) 84A質(zhì)量流量計(jì) 84M質(zhì)量流量計(jì) CNGmass質(zhì)量流量計(jì) 40E質(zhì)量流量計(jì)

4、E+H超聲波流量計(jì)：外部安裝，非接觸測(cè)量。安裝簡便，不干擾工藝過程，適用于腐蝕性介質(zhì)，高壓、衛(wèi)生場(chǎng)合。型號(hào)有: 90/93W,93/90A,90/93U/C93T超聲波流量計(jì) 92F超聲波流量計(jì)

E+H（恩德斯豪斯）t-switch 熱式氣體流量測(cè)量 E+H（恩德斯豪斯）t-trend 熱式氣體流量測(cè)量 E+H（恩德斯豪斯）能量計(jì)算儀 RMC 621 E+H（恩德斯豪斯）能量計(jì)算儀 RMS 621 E+H（恩德斯豪斯）Magphant 插入式電磁流量計(jì) E+H（恩德斯豪斯）Memo-graph 可視數(shù)據(jù)管理器 E+H（恩德斯豪斯）RIA 250 過程顯示儀 E+H（恩德斯豪斯）RIA 251 過程顯示儀 E+H（恩德斯豪斯）RIA 450 過程指示儀 E+H（恩德斯豪斯）t-mass S AT70熱式氣體流量測(cè)量

E+H能量計(jì)算儀RMC621/RMS621

E+H 50W2H-H50A1A10A7AW DN=200E+H 50W3H-H50A1A10A7AW DN=300E+H 50W1F-H50A1A10B7AWE+H 50P50-AA1A1AA0AAAAE+H 80I50-AD2WAAAAA4ADE+H 50P40-EA2A1AA0AAAAE+H 80F40-AD2SAAAAAAE+H 83F40-AD2SAAAANBE+H FDU80-RG2SE+H 50P80-EA1A1AA0BAAAE+H 80F50-AD2SAAAABAABAE+H 50W65-HA0A1A0AAAWE+H 50W80-HA0A1A1AAAWE+H 50W2F-HC0A1A1AAAWE+H 50W25-UAOA1AA0A4AAE+H FTL50-YJE2AA4G7AE+H FTC231-K11B4 L=500MME+H 53H04-KA0B1AC1AAHAJE+H 53H08-KA0B1AC1AAHAJE+H 50W40-UA0A1AA0AAAAE+H 50W50-UA0A1AA0AAAAE+H 50W25-UA0A1AA0AAAAE+H 72F80SE0-AA1AAA4AAAE+H 72F50SE0-AA1AAA4AAAE+H FTC260-AA4D1E+H 83F50-AFTSAAAAAAAE+H 53H80-A00B1AA0ABABE+H 53H40-A00B1AA1ABABE+H 53H15-A001AA0AAABE+H 50H40-UF0B1AA0AAADE+H CPM253-PR0150E+H CPF81-LH11C2E+H COM223-DX0005E+H CUM223-TU0005E+H CUS41-W2E+H CPK1-150A 15ME+H CPK1-150A 20ME+H 50P40-EA2A1AA0BAAAE+H 50P50-EA2A1AA0BAAAE+H 50P80-EA2A1AA0BAAAE+H 80M50-AS2AABAAAAA8E+H FTC51-AG1AA51C4 L1=1000MM L2=100MME+H PMP75-5AA1P21D4GAAAE+H 50W4H-HC0A1AA0AA4AAE+H FTL51-AGQ2DB4G7A E+H FTM30-B1DA1E+H FTL51-AGR2DB4G5AE+H 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SKLD系列智能型防腐電磁流量計(jì)

智能型防腐電磁流量計(jì)http://www.china-suke.com/product-ll52.html

SKLD系列智能型防腐電磁流量計(jì)采用世界技術(shù)。利用恒流低頻三值矩形波或雙頻矩形波勵(lì)磁，既有矩形波磁場(chǎng)的優(yōu)點(diǎn)，又克服了正弦波磁場(chǎng)的缺點(diǎn)；還可以消除電源電壓波動(dòng)、電源頻率變化及勵(lì)磁線圈阻抗變化所造成的誤差；并有極好的零點(diǎn)穩(wěn)定性和不受流體噪聲干擾影響。從而具有高穩(wěn)定性、高性的特點(diǎn)。智能型防腐電磁流量計(jì)測(cè)量原理是基于法拉第電磁感應(yīng)定律，智能型防腐電磁流量計(jì)由傳感器和轉(zhuǎn)換器組成，傳感器安裝在測(cè)量管道上，轉(zhuǎn)換器可以與傳感器組合連接在一起稱為一體型電磁流量計(jì)，轉(zhuǎn)換器被安裝在離傳感器30米內(nèi)或100米內(nèi)的場(chǎng)合，兩者間由屏蔽電纜連接稱為分離型電磁流量計(jì)。智能型防腐電磁流量計(jì)傳感器主要組成部分是：測(cè)量管、電極、勵(lì)磁線圈、鐵芯與磁軛殼體。智能型防腐電磁流量計(jì)主要用于測(cè)量封閉管道中的導(dǎo)電液體和漿液中的體積流量。如水、污水、泥漿、紙漿、各種酸、堿、鹽溶液、食品漿液等，智能型防腐電磁流量計(jì)廣泛應(yīng)用于石油、化工、冶金、紡織、食品、制藥、造紙等行業(yè)以及環(huán)保、市政管理，水利建設(shè)等領(lǐng)域。

產(chǎn)品特點(diǎn)： 1、測(cè)量不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的影響； 2、測(cè)量管內(nèi)無阻礙流動(dòng)部件，無壓損，直管段要求較低； 3、系列公稱通徑DN15～DN3000。傳感器襯里和電極材料有多種選擇； 4、轉(zhuǎn)換器采用新穎勵(lì)磁方式，功耗低、零點(diǎn)穩(wěn)定、精確度高。流量范圍度可達(dá)1500：1； 5、轉(zhuǎn)換器可與傳感器組成一體型或分離型； 6、轉(zhuǎn)換器采用16位高性能微處理器，2x16LCD顯示，參數(shù)設(shè)定方便，編程； 7、流量計(jì)為雙向測(cè)量系統(tǒng)，內(nèi)裝三個(gè)積算器：正向總量、反向總量及差值總量；可顯示．莊、反流量，并具有多種輸出：電流、脈沖、數(shù)字通訊、HART； 8、轉(zhuǎn)換器采用表面安裝技術(shù)SMT，具有自檢和自診斷功能；

該公司產(chǎn)品分類：儀表配件電線電纜變送器儀表校驗(yàn)儀表顯示儀表流量儀表壓力儀表溫度儀表儀器儀表

ZK-LDC插入式電磁流量計(jì)

ZK-LDC插入式電磁流量計(jì)的詳細(xì)資料：

一、ZK-LDC插入式電磁流量計(jì)特點(diǎn)

ZK-LDC插入式電磁流量計(jì)除具有一般電磁流量計(jì)的特點(diǎn)外,還具有其自身獨(dú)特的優(yōu)點(diǎn):

1、結(jié)構(gòu)簡單,無可動(dòng)部件,使用壽命長.

2、體積小,重量輕,安裝方便,維護(hù)量小.

3、有截止閥插入式電磁流量計(jì)實(shí)現(xiàn)了不斷流即可安裝,拆卸,方便用戶維護(hù)、檢修.

4、測(cè)量時(shí)不受被測(cè)管道材質(zhì)的影響.

5、不需要襯里,不需要接地環(huán). 二、ZK-LDC插入式電磁流量計(jì) 技術(shù)參數(shù)

1、管道公稱通徑及流量范圍見表1

2、被測(cè)液體導(dǎo)電率:＞ 5 μ s/cm

3、公稱壓力:0.6MPa 1.0MPa 1.6MPa

4、被測(cè)介質(zhì)溫度:0～60℃

5、傳感器定位桿軸線與管道軸線的夾角允差+5°,插入深度允差3mm

6、直管段長度要求:傳感器上游直管段長度≥ 20D;傳感器下游直管段長度≥ 7D

7、轉(zhuǎn)換器主要技術(shù)性能指標(biāo):

a、輸出信號(hào):直流電流:4～20mA（允許負(fù)截電阻為0～500 Ω,光電隔離）

b、供電電源: AC 或24V Dc

c、傳感器與軒換器之間連接電纜的最大長度為100m

d、工作環(huán)境:溫度為0～40℃;相對(duì)濕度小于85%;周圍空氣中不應(yīng)含有腐蝕性氣體

e、顯示瞬時(shí)流量和累計(jì)流量

8、精確度:當(dāng)管道公稱通徑DN ≤ 150 時(shí),為± 1.5%R

當(dāng)管道公稱通徑DN ≥ 200 時(shí),為± 1.5%R ± 2.5%R

9、外殼防護(hù)等級(jí)：IP67

三、選型參數(shù)及型號(hào)標(biāo)記

對(duì)于插入式電磁流量計(jì),設(shè)計(jì)單位應(yīng)根據(jù)本產(chǎn)品的主要技術(shù)指標(biāo),參照用戶的實(shí)際情況選型.

1、適用流量范圍的確定

如果用戶已做好管道,可根據(jù)表選擇相適用的流量及傳感器口徑.

如果用戶沒有做好管道,首先要根據(jù)流量范圍確定傳感器口徑,再考慮是安裝有截止閥型還有安裝無截止閥型的傳感器.　　

2、探頭及插入桿形式

探頭形式是根據(jù)介質(zhì)懸浮物情況確定的,一般懸浮物多不易經(jīng)常拆裝的選敞開式,否則選導(dǎo)管式.插入桿形式是對(duì)安裝的要求.一般螺桿式比較易于安裝.

3、壓力及使用情況

用戶可根據(jù)管道壓力的要求選擇傳感器的壓力指標(biāo).一般插入式電磁流量計(jì)用于管道壓力較小的場(chǎng)合,適用于大中型管道中的循環(huán)水、源水和凈水計(jì)量.另外,插入式電磁流量計(jì)與同口徑的一體、分體電磁流量計(jì)相比價(jià)格較低廉.

四、ZK-LDC 型傳感器選型表

ZK-LDC——插入式電磁流量傳感器

安裝方式——（有截止閥;1- 無截止閥）

探頭形式——（A 敞開式,B 導(dǎo)管式）

插入桿形式——（1 螺桿,2 光桿式）

口徑——（見表1）

五、ZK-LDC插入式電磁流量計(jì)選型表

ZK-LDC——插入式電磁流量計(jì)

使用環(huán)境——（B ：防爆；無：非防爆）

轉(zhuǎn)換器型號(hào)——（6 A ：一體化；5 A ：分體型）

結(jié)構(gòu)形式——（Y ：一體型：分體型）

安裝方式——（有截止閥；1 - 無截止閥）

探頭形式——（A 敞開式；B 導(dǎo)管式）

插入式桿形式——（1 螺桿式；2 光桿式）

02083620460 13434282715廣東污水流量計(jì) 廣州防腐流量計(jì) 電磁流量計(jì)

智能電磁流量計(jì)，是用于測(cè)量連續(xù)或間斷流經(jīng)封閉管道中導(dǎo)電液體和液固兩相流的體積流量。由于它的測(cè)量精度不受被測(cè)介質(zhì)的溫度、密度、粘度以及電導(dǎo)率（允許限以上）變化的影響，選擇合適的襯里和電極材料，就可以測(cè)量各種腐蝕性（如酸、堿，鹽）以及磨擦系數(shù)的礦漿等介質(zhì)流量。因此，被廣泛地用于石油、化工、水利、治金、煤礦、供水、環(huán)保、食品衛(wèi)生等領(lǐng)域。

主要技術(shù)參數(shù)：　

公稱通徑DN（mm）：10~600

流量范圍（m/h）：0.1~6000

度：0.5級(jí)；1級(jí)（按協(xié)議可提供量程百分誤差）

量程比：1：201：30；

重復(fù)性%：＜基本誤差限的1/3

介質(zhì)流速范圍（m/s）：0.3~10

額定工作壓力PN（Mpa）：1.0；1.6；2.5；4.0；6.4；10；16；25；

介質(zhì)電導(dǎo)率（pS/cm）：≥5

介質(zhì)工作溫度（℃）：一體型：＜70/分體型：聚四氟乙烯襯里＜180/高壓時(shí)＜70其它襯里：＜80　　

輸出方式：脈沖輸出；模擬輸出；4~20mAPS485接口

供電方式：24VDC;220V AC; 50Hz

該公司產(chǎn)品分類：億儀自動(dòng)化定量流量計(jì) 污水流量計(jì) 蒸汽流量計(jì) 氣體流量計(jì) 液體

電磁流量計(jì)

SY-LDE液體流量計(jì)特別設(shè)計(jì)了帶背光寬溫的中文液晶顯示器，功能齊全實(shí)用、顯示直觀、操作使用方便，可以減少其他電磁流量計(jì)英文菜單所帶來的不便。另外我們?cè)O(shè)計(jì)4-6多電極結(jié)構(gòu)，進(jìn)一步了測(cè)量精度并且任何時(shí)候無需接地環(huán)，減輕了儀表體積和安裝維護(hù)的麻煩。液體流量計(jì)測(cè)量精度不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的影響，液體流量計(jì)傳感器感應(yīng)電壓信號(hào)與平均流速呈線性關(guān)系，因此測(cè)量精度高。液體流量計(jì)測(cè)量管道內(nèi)無阻流件，因此沒有附加的壓力損失；測(cè)量管道內(nèi)無可動(dòng)部件，因此傳感器壽命極長。液體流量計(jì)由于感應(yīng)電壓信號(hào)是在整個(gè)充滿磁場(chǎng)的空間中形成的，是管道載面上的平均值，因此傳感器所需的直管段較短，長度為5倍的管道直徑。傳感器部分只有內(nèi)襯和電極與被測(cè)液體接觸，只要合理選擇電極和內(nèi)襯材料，即可耐腐蝕和耐磨損。如何正確選型：

儀表的選型是儀表應(yīng)用中非常重要的工作，有關(guān)資料表明，儀表在實(shí)際應(yīng)用中有2/3的故障是儀表的錯(cuò)誤選型或錯(cuò)誤的安裝而造成的，請(qǐng)?zhí)貏e注意。◆收集數(shù)據(jù)1.被測(cè)流體成份2.最大流量、最小流量3.工作壓力4.溫度、溫度◆被測(cè)流體必須具備一定的導(dǎo)電性，導(dǎo)電率>5μS/CM最大流量和最小流量必須符合下表中的數(shù)

口徑mm	流量范圍m3/h	口徑mm	流量范圍m3/h
φ15	0.0636~6.36	φ450	57.23～5722.65
φ20	0.11～11.30	φ500	70.65～7065.00
φ25	0.18～17.66	φ600	101.74～10173.6
φ40	0.45～45.22	φ700	138.47～13847.4
φ50	0.71～70.65	φ800	180.86～18086.4
φ65	1.19～119.4	φ900	228.91～22890.6
φ80	1.81～180.86	φ1000	406.94～40694.4
φ100	2.83～282.60	φ1200	553.90～55389.6
φ150	6.36～635.85	φ1600	723.46～72345.6
φ200	11.3～1130.4	φ1800	915.62～91562.4
φ250	17.66～176.25.	φ2000	1130.4～113040.00
φ300	25.43～2543.40	φ2200	1367.78～136778.4
φ350	34.62～3461.85	φ2400	1627.78～162777.6
φ400	45.22～4521.6	φ2600	1910.38～191037.6

實(shí)際工作壓力必須小于流量計(jì)的額定工作壓力。工作溫度和溫度必須符合流量計(jì)規(guī)定的溫度要求。確定是否有負(fù)壓情況存在。您可以根據(jù)上表中的流量選擇相應(yīng)的電磁流量計(jì)，若所選擇的電磁流量計(jì)的內(nèi)徑與現(xiàn)在工藝管道的內(nèi)徑不符，應(yīng)進(jìn)行縮管或擴(kuò)管。若管道進(jìn)行縮管，應(yīng)考慮由于縮管引起的壓力損失是否會(huì)影響工藝流程。從產(chǎn)品價(jià)格考慮，可以選擇較小口徑的電磁流量計(jì)，相對(duì)減少投資。測(cè)潔凈水時(shí)，經(jīng)濟(jì)流速時(shí)1.5－3m/s，測(cè)易結(jié)晶的溶液時(shí)，應(yīng)適當(dāng)?shù)靥岣吡魉伲?－4m/s為宜，起到自清掃，防止粘附沉積等作用；測(cè)礦漿等磨◆耗性流體時(shí)，應(yīng)適當(dāng)降低流速，1.0－2m/s為宜，以降低對(duì)內(nèi)襯和電極地磨損。實(shí)際應(yīng)用很少超過7m/s，超過10m/s則更為罕見。

的正確接線

①勵(lì)磁電纜可選用YZ中型橡套電纜，其長度與信號(hào)電纜一樣

②信號(hào)電纜和其他動(dòng)力電源電纜必須嚴(yán)格分開，不能敷設(shè)在同一根管子內(nèi)，不能平行敷設(shè)，不能絞合在一起，應(yīng)分別單獨(dú)穿在鋼管內(nèi)。

③信號(hào)電纜和勵(lì)磁電纜盡可能短，不能將多余的電纜卷在一起，應(yīng)將多余電纜剪掉，并重新焊接頭，電纜進(jìn)入傳感器電氣接口時(shí)，在端口處做成U型，這樣可以防止雨水滲透到傳感器中。

④分體型電磁流量計(jì)勵(lì)磁電纜和轉(zhuǎn)換器之間的連接用專用接線完成，轉(zhuǎn)換器和外部的連接同一體型電磁流量計(jì)。

液體流量計(jì)的接線：

①勵(lì)磁電纜可選用YZ中型橡套電纜，其長度與信號(hào)電纜一樣

②信號(hào)電纜和其他動(dòng)力電源電纜必須嚴(yán)格分開，不能敷設(shè)在同一根管子內(nèi)，不能平行敷設(shè)，不能絞合在一起，應(yīng)分別單獨(dú)穿在鋼管內(nèi)。

③信號(hào)電纜和勵(lì)磁電纜盡可能短，不能將多余的電纜卷在一起，應(yīng)將多余電纜剪掉，并重新焊接頭，電纜進(jìn)入傳感器電氣接口時(shí)，在端口處做成U型，這樣可以防止雨水滲透到傳感器中。

④分體型電磁流量計(jì)勵(lì)磁電纜和轉(zhuǎn)換器之間的連接用專用接線完成，轉(zhuǎn)換器和外部的連接同一體型電磁流量計(jì)。

分體型電磁流量計(jì)的接線：

電磁

液體流量計(jì)如何在管道上安裝：

應(yīng)安裝在水平管道較低處和垂直向上處，避免安裝在管道的點(diǎn)和垂直向下處；

應(yīng)安裝在管道上上升處；

在開口排放管道安裝，應(yīng)安裝在管道的較低處；

若管道落差超過5m時(shí)，在傳感器的下游安裝排氣閥；

應(yīng)在傳感器的下游安裝控制閥和切斷閥，而不應(yīng)安裝在傳感器上游；

傳感器絕對(duì)不能安裝在泵的進(jìn)出口處，應(yīng)安裝在泵的出口處；

在測(cè)量井內(nèi)安裝流量計(jì)的方式

1、入口	2、溢流管	3、入口柵	4、清洗孔
5、流量計(jì)	6、短管	7、出口	8、排放閥

如何正確選擇安裝節(jié)點(diǎn)：

　　正確地選擇安裝點(diǎn)和正確安裝流量計(jì)都是非常重要的環(huán)節(jié)，若在安裝環(huán)節(jié)失誤，輕者影響測(cè)量精度，重者會(huì)影響流量計(jì)的使用壽命，甚至?xí)䲟p壞流量計(jì)。

選擇安裝位置時(shí)需特別注意：

·非測(cè)量電極的軸線必須近似于水平方向；

·測(cè)量管道內(nèi)必須充滿液體；

·流量計(jì)前方最少要有5＊ D（D為流量計(jì)內(nèi)徑）長度的直管段，后方最少要有3＊ D（D為流量計(jì)內(nèi)徑）長度的直管段；· 流體的流動(dòng)方向和流量計(jì)的箭頭方向一致；·管道內(nèi)要有真空會(huì)損壞流量計(jì)的內(nèi)襯，需特別注意；·在流量計(jì)附近應(yīng)無強(qiáng)電磁場(chǎng)；·在流量計(jì)附近應(yīng)有充裕的空間，以便安裝和維護(hù)；·若測(cè)量管道有振動(dòng)，在流量計(jì)的兩邊應(yīng)有固定的支座測(cè)量不同介質(zhì)的混合液體時(shí)混合點(diǎn)與流量計(jì)之間的距離最少要有30×D（D為流量計(jì)內(nèi)徑）長度為方便今后流量計(jì)的清洗和維護(hù)，應(yīng)安裝旁通管道；

該公司產(chǎn)品分類：校驗(yàn)儀表系列溫度儀表系列壓力儀表系列流量儀表系列