NS-120 溶氧電極的詳細信息
廣泛應用于水質(zhì)處理、水文監(jiān)測、廢水處理、游泳池、魚塘和化肥、化工、生物等領域的含氧量監(jiān)測·測 量 原 理
NS－120型氧電極是一種隔膜式極譜（clark）型傳感器。由傳導性電解質(zhì)連接的一個陰極和一個陽極組成。陰極與陽極間適當?shù)臉O化電壓可在陰極上將O2還原：
陰極反應：O2 ＋ 2H2O ＋ 4e → 4OH-
陽極反應：4Ag ＋ 4Cl- → 4AgCl 4e
這些化學反應產(chǎn)生與所測量溶液中O2的分壓成正比的電流。·特 點
★反應靈敏，穩(wěn)定性好
★無需要更換膜及電解液
★適用于各種惡劣水質(zhì)，膜不易損壞、抗污染·技 術 參 數(shù)
測量原理：電流測量/極譜法
檢測極限： ﹤40ppb含氧量
響應時間：25℃時含氧量下降90%﹤2min
殘余電流：無氧介質(zhì)中殘留的室溫信號﹤滿度的2%
溫度范圍：測量時0～60℃
壓力范圍：0～4bar
電極信號：25℃時20～80nA（按客戶要求定制）
溫度補償：熱敏電阻阻值按客戶要求定制
電極尺寸：直徑12mm,長度120mm（PG13.5螺紋接口），可按客戶要求定制
電極材質(zhì)：316L不銹鋼殼體，POM膜帽
透氣膜：鋼篩網(wǎng)增強的聚四氟乙烯及聚矽氧烷膜。NS-120 dissolved oxygen electrode
* Typical Applications
Is widely used in water treatment, hydrological monitoring, waste water treatment, swimming pools, fish ponds and fertilizer, chemical, biological and other fields to monitor the oxygen content of* Measurement principle
NS-120 type oxygen electrode is a diaphragm-type polarographic (clark) sensor. Connected by a conductive electrolyte, a cathode and an anode component. The cathode and anode polarization voltage between the appropriate O2 reduction at the cathode will be:
Cathode reaction: O2 2H2O 4e → 4OH -
Anodic reaction: 4Ag 4Cl-→ 4AgCl 4e
These chemical reactions produce the solution with the measurement of O2 partial pressure is proportional to current.* Features
★ responsive, good stability
★ No need to replace the membrane and electrolyte
★ applicable to all kinds of poor water quality, membrane difficult to damage, anti-pollution* Technical parameters
Measuring principle: current measurement / Polarography
Detection limit: <40ppb oxygen content
Response time: 25 ℃ when the oxygen content decreased 90% <2min
Residual current: oxygen-free medium at room temperature residual signal "full-scale 2% of
Temperature range: 0 ~ 60 ℃ measurement
Pressure Range: 0 ~ 4bar
Electrode signal: 25 ℃, when 20 ~ 80nA (according to customer request)
Temperature Compensation: thermistor resistance customized according to customer requirements
Electrode size: diameter 12mm, length 120mm (PG13.5 threaded interface), according to the customer's requirement
Electrode Material: 316L stainless steel shell, POM membrane cap
Breathable membrane: Steel mesh enhanced PTFE and polydimethylsiloxane membrane.
廣泛應用于水質(zhì)處理、水文監(jiān)測、廢水處理、游泳池、魚塘和化肥、化工、生物等領域的含氧量監(jiān)測·測 量 原 理
NS－120型氧電極是一種隔膜式極譜（clark）型傳感器。由傳導性電解質(zhì)連接的一個陰極和一個陽極組成。陰極與陽極間適當?shù)臉O化電壓可在陰極上將O2還原：
陰極反應：O2 ＋ 2H2O ＋ 4e → 4OH-
陽極反應：4Ag ＋ 4Cl- → 4AgCl 4e
這些化學反應產(chǎn)生與所測量溶液中O2的分壓成正比的電流。·特 點
★反應靈敏，穩(wěn)定性好
★無需要更換膜及電解液
★適用于各種惡劣水質(zhì)，膜不易損壞、抗污染·技 術 參 數(shù)
測量原理：電流測量/極譜法
檢測極限： ﹤40ppb含氧量
響應時間：25℃時含氧量下降90%﹤2min
殘余電流：無氧介質(zhì)中殘留的室溫信號﹤滿度的2%
溫度范圍：測量時0～60℃
壓力范圍：0～4bar
電極信號：25℃時20～80nA（按客戶要求定制）
溫度補償：熱敏電阻阻值按客戶要求定制
電極尺寸：直徑12mm,長度120mm（PG13.5螺紋接口），可按客戶要求定制
電極材質(zhì)：316L不銹鋼殼體，POM膜帽
透氣膜：鋼篩網(wǎng)增強的聚四氟乙烯及聚矽氧烷膜。NS-120 dissolved oxygen electrode
* Typical Applications
Is widely used in water treatment, hydrological monitoring, waste water treatment, swimming pools, fish ponds and fertilizer, chemical, biological and other fields to monitor the oxygen content of* Measurement principle
NS-120 type oxygen electrode is a diaphragm-type polarographic (clark) sensor. Connected by a conductive electrolyte, a cathode and an anode component. The cathode and anode polarization voltage between the appropriate O2 reduction at the cathode will be:
Cathode reaction: O2 2H2O 4e → 4OH -
Anodic reaction: 4Ag 4Cl-→ 4AgCl 4e
These chemical reactions produce the solution with the measurement of O2 partial pressure is proportional to current.* Features
★ responsive, good stability
★ No need to replace the membrane and electrolyte
★ applicable to all kinds of poor water quality, membrane difficult to damage, anti-pollution* Technical parameters
Measuring principle: current measurement / Polarography
Detection limit: <40ppb oxygen content
Response time: 25 ℃ when the oxygen content decreased 90% <2min
Residual current: oxygen-free medium at room temperature residual signal "full-scale 2% of
Temperature range: 0 ~ 60 ℃ measurement
Pressure Range: 0 ~ 4bar
Electrode signal: 25 ℃, when 20 ~ 80nA (according to customer request)
Temperature Compensation: thermistor resistance customized according to customer requirements
Electrode size: diameter 12mm, length 120mm (PG13.5 threaded interface), according to the customer's requirement
Electrode Material: 316L stainless steel shell, POM membrane cap
Breathable membrane: Steel mesh enhanced PTFE and polydimethylsiloxane membrane.
