產(chǎn)品說(shuō)明
氮?dú)鈾z測(cè)分析儀 氮?dú)鈾z測(cè)儀 氮含量分析檢測(cè)儀
型號(hào):G80547
氮?dú)鈾z測(cè)儀廣泛用于化肥、石油化工、空分以及生物發(fā)酵等工業(yè)生產(chǎn)過(guò)程中氮?dú)夂康臋z測(cè) .空分制氮、化工流程氮?dú)饧兌茸詣?dòng)分析,磁性材料等高溫?zé)Y(jié)爐的保護(hù)性氣體中氮含量分析;電子行業(yè)、玻璃、建材行業(yè)等工業(yè)生產(chǎn)過(guò)程中氮?dú)饧兌鹊脑诰€檢測(cè)。
一、概述
本儀器是采用測(cè)氧原理, 通過(guò)氧氣傳感器把氣體中的氧濃度轉(zhuǎn)換成電信號(hào),經(jīng)減法器的計(jì)算從而倒算出氮?dú)夂浚⒅苯语@示被測(cè)氣體中的氮?dú)獍俜直群俊x表采用**的*規(guī)模集成電路及5位半L E D高亮度數(shù)字顯示器,具備數(shù)碼撥盤(pán)設(shè)定下限控制功能,方便快捷。當(dāng)被監(jiān)控系統(tǒng)的氮含量低于設(shè)定值時(shí),控制觸點(diǎn)啟動(dòng),并有聲/光同時(shí)報(bào)警。儀表還有4-20MA同步信號(hào)輸出,并有自動(dòng)穩(wěn)零功能,儀器能直接顯示十萬(wàn)分之一讀數(shù)(99.999%),具有響應(yīng)快、精度高、穩(wěn)定、**、操作簡(jiǎn)便等特點(diǎn)。本儀器可利用空氣的氮?dú)獾暮?9.0%定標(biāo),操作方便,并設(shè)有量程自動(dòng)轉(zhuǎn)換電路,當(dāng)?shù)獨(dú)鉂舛却笥?0.3%時(shí),這時(shí)儀器量程自動(dòng)轉(zhuǎn)換,讀數(shù)為90.300%。
當(dāng)?shù)獨(dú)鉂舛鹊陀?號(hào)下限設(shè)定值時(shí)(假如是99.96%),報(bào)警指示燈亮,同時(shí)有報(bào)警聲響,1號(hào)報(bào)警輸出開(kāi)關(guān)啟動(dòng)(可當(dāng)預(yù)警提示,或啟動(dòng)相應(yīng)的設(shè)備).. 當(dāng)?shù)獨(dú)鉂舛壤^續(xù)下降低于2號(hào)下限設(shè)定值時(shí)(假如是99.93%), 2號(hào)報(bào)警輸出開(kāi)關(guān)啟動(dòng).(可根椐需要啟動(dòng)相應(yīng)的控制設(shè)備)..這樣更有利于產(chǎn)品質(zhì)量的生產(chǎn)管理.如果只用1路設(shè)定值,那就把2號(hào)下限控制數(shù)碼撥至90.00即可.2種儀表都帶有4~20mA信號(hào)輸出可與記錄儀連接。
本儀器適用于變壓吸附制氮機(jī),空分設(shè)備,以及氮氧混合氣中的氮?dú)鉂舛确治觥⒈O(jiān)測(cè)和控制。
二、產(chǎn)品特點(diǎn)
報(bào)警點(diǎn)及觸點(diǎn)輸出任意設(shè)置,N2 顯示供用戶(hù)選擇,進(jìn)口新型長(zhǎng)壽命的離子流檢測(cè)器,靈敏度高、響應(yīng)速度快,上下限報(bào)警點(diǎn)能在全量程范,高精度的溫度自動(dòng)補(bǔ)償系統(tǒng),*環(huán)境溫度的影響。
檢測(cè)原理:傳感器
監(jiān)測(cè)氣體: 氮?dú)?
三、技術(shù)指標(biāo):
1.測(cè)量范圍 :70~99.999%
2.精 度: 98~99.999±0.02%N2 ;
3.較小檢測(cè)量: 0.001%
4.響應(yīng)時(shí)間: ≦10秒
5.環(huán)境溫度: 0~40℃;
6.環(huán)境濕度: ≤85%RH。;
7.電 源: 220V±10%;
8.穩(wěn) 定 性:48小時(shí)內(nèi)漂移小于±0.2%
9控制點(diǎn)容量:A C220 V 1 A
10.外形尺寸:160×160×80mm(長(zhǎng)×寬×高)(開(kāi)孔尺寸150×75)
11.重 量: 1.2Kg
12.記錄輸出:4~20mA
13.功 耗: ≤5 W
四、原理:
儀器由氧電極、放大器、比較器、減法器,報(bào)警器等部分組成。氧電極:為較譜法隔膜式,采用鉑金為陰極,銀氯化銀為陽(yáng)極,以聚四氟乙稀為滲透隔離膜,氣樣中氧可透過(guò)薄膜到達(dá)陰極,在650mV的較化電壓下發(fā)生如下反應(yīng)。
陰極:O2+H2O+4e→40H—
陽(yáng)極:Ag++C1-→AgC1↓+e
反映可*達(dá)到平衡,同時(shí)產(chǎn)生一個(gè)極限擴(kuò)散電流,此電流的大小正比于氣樣中的氧分壓。此電流通過(guò)放大器放大,通過(guò)減法器由顯示屏直接顯示出被測(cè)氣中的氮?dú)夂浚瑫r(shí)輸出4-20電流.供外接記錄儀或微機(jī)作數(shù)據(jù)記錄,可使測(cè)量資料存檔。另外信號(hào)經(jīng)撥盤(pán)數(shù)碼開(kāi)關(guān)控制.,當(dāng)被測(cè)氣體中的氮?dú)夂?*過(guò)設(shè)定值時(shí),儀器發(fā)出聲,光報(bào)警.同時(shí)啟動(dòng)相應(yīng)的控制繼電器動(dòng)作,以帶動(dòng)各類(lèi)控制設(shè)備.
Product description
Instrument analysis nitrogen content of nitrogen analyzer nitrogen detector
Model: G80547
Nitrogen detector is widely used to detect content of nitrogen fertilizer, petrochemical industry, process of air separation and biological fermentation in industrial production. The automatic analysis of nitrogen air separation, chemical process the purity of nitrogen, the nitrogen content of the protective gas magnetic materials such as high temperature sintering furnace; online detecting purity nitrogen industrial production process of electronic industry, glass in the building materials industry, etc..
One, overview
This instrument is the use of measuring principle of oxygen, the oxygen sensor to the oxygen concentration in the gas is converted into an electrical **, through calculation and subtracter to deduce the nitrogen content, and directly display the measured nitrogen percentage content in gas. The instrument adopts the advanced large-scale integrated circuit and 5 - L E D high brightness digital display, digital dial setting the minimum control function, convenient and quick. When the nitrogen content of the monitored system is lower than the set value, the control actuation of contacts, and sound / light alarm simultaneously. Instrument and 4-20MA synchronous ** output, and auto zero function, the instrument can directly display the 1/100000 reading (99.999%), has the characteristics of fast response, high accuracy, stability, reliability, easy operation etc.. 79% content of this instrument can use air nitrogen calibration, convenient operation, and is provided with automatic range switching circuit, when the nitrogen concentration is greater than 90.3%, then the instrument automatic range conversion, a reading of 90.300%.
When the nitrogen concentration is lower than 1, the lower limit of the set value (if it is 99.96%), the alarm indicator light, and alarm sound, 1 alarm output switch (can be when the warning, or start the corresponding device). When the concentration of nitrogen continue to fall below 2, the lower limit of the set value (if it is 99.93%), No. 2 alarm output switch. (according to need to start the corresponding control equipment) management of production. This is more conducive to the quality of the products. If 1 road with the set value, then the 2 lower control digital dial to 90 to.2 instrument with 4 to 20mA ** output and the recorder.
The utility model is suitable for the pressure swing adsorption nitrogen making machine, air separation equipment, as well as the analysis, the concentration of nitrogen gas mixture of nitrogen and oxygen in the monitoring and control.
Two, product features against
Alarm and contact output arbitrarily set, N2 display for the user to choose, ion import new long-lived flow detector, high sensitivity, fast response, alarm point in the whole range of fan, automatic temperature compensation system with high accuracy, eliminate the influence of environmental temperature.
Detection principle: the sensor
Monitoring of gas: nitrogen
Three, technical indicators:
1 measuring range:70 ~ 99.999%
2 precision: 98 ~ 99.999 ± 0.02%N2;
3 the minimum detection amount: 0.001%
Response time: 4 ≤ 10 seconds
5 environmental temperature 0 ~ 40 ℃;
Humidity: 6 ≤ 85%RH. ;
7 power supply: 220V ± 10%;
8 stability: 48 hour drift less than 0.2%
The 9 control point capacity: A C220 V 1 A
10 dimensions: 160 x 160 x 80mm (length * width * height) (hole size 150 x 75)
11 weight: 1.2Kg
The 12 recording output: 4 ~ 20mA
Power consumption: 13 ≤ 5 W
Four, the principle of:
The instrument by the oxygen electrode, amplifier, comparator, subtracter, alarm and other parts. Oxygen electrode for polarography: diaphragm type, using platinum as the cathode, silver silver chloride as anode, with PTFE as osmotic membrane, gas like oxygen permeable film to the cathode, the following reaction in the polarization voltage of 650mV.
Cathode: O2+H2O+4e → 40H-
Anode: Ag++C1- → AgC1 ↓ +e
Reflection can rapidly reach equilibrium, while producing a limiting diffusion current, this current is proportional to the partial pressure of oxygen in the gas sample. This current is amplified by an amplifier, the subtractor by direct display shows the measured nitrogen gas, while the output 4-20 current. For external recorder or computer data recording, can make the measurement data archive. The other ** by the dial digital switch control., when the measured nitrogen content in the gas exceeds the set value, the instrument sound, light alarm. At the same time start the corresponding control relay, to various kinds of control equipment.
氮?dú)鈾z測(cè)儀 : 變壓吸附制氮機(jī),空分設(shè)備 ;
電源 : 220V±10% ;
重量 : 1.2Kg(kg) ;
尺寸 : 160×160×80mm(mm) ;
電壓 : 220V(v) ;
測(cè)量精度 : ±0.02% ;
測(cè)量對(duì)象 : 變壓吸附制氮機(jī),空分設(shè)備 ;
測(cè)量范圍 : 70~99.999% ;
類(lèi)型 : 便攜式 ;
型號(hào) : G80547 ;
** : 冠測(cè) ;
加工定制 : 是 ;