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[전극방식] 암모니아 분석기
조회 : 2,766  
 
 
전극방식(ISE method)
Model NH-9110-Ca Online calcium Analyzer
 
 
로홍사의 NH3 분석기는 ISE전극(Ion Selective electrode) 측정 방식을 사용합니다.
8~12mm 샘플 튜브를 사용하여 막힘이 거이 없도록 설계되었고 이온 강도 조절 시약으로
보다 정확한
측정이 가능합니다. 자동 교정, 자동 세정, 역세정, 알람 표시기능등이 포함되어 있어 유지관리에 편리합니다.
 

■ 제품의  특징
-ISE method.
-Ion strength 시약으로 보다 정확한 측정.
-자가 진단 system. 분석기에 이상이 있을시 알람 발생 및 자동으로 HOLD 작동.
-터치스크린과 아이콘 형식의 인터페이스.
-Self - Calibration, Self - Cleaning.
-No filter system needed
 SS < 3%, particle diameter < 3mm.
-Auto re-flush 기능.
-자동교정 기능 내장.
-데이터 로거 내장.
 
■ Specification
-Display : 5.7" Color touch panel.   
-Measure Range : 0.1 ~ 17,000ppm(or 0.01 ~ 1,700ppm)   
-Accuracy : < 5% of full scale   
-Response time : < 2 mins for low range. < 5min for high range.   
-Out put : 4~20mA, RS-232, RS-485(optional)   
-Sample Tem. : 0℃ ~ 45℃   
-Calibrate : Manual / Auto    
-Calibrate frequency : programmable   
-Size(L*W*D) : 1600*500*350mm(Alumina)   
-Power : 110/220V @ 50Hz-60Hz
 
 
 
 
LH-9390-NH3 on line analyzer
 
 
■ Methodology
-While ammonia dissolve in water, molecular
(NH3(aq)) and ion (NH₄+) are present in water at
same time. When adjust sample PH above 11,
all of ion type ammonia (ammonium, NH₄+) turn
to molecular ammonia (NH3(aq)). The molecular
ammonia in water, can detect by ammonia gas
sensing electrode.

-Adjust sample pH > 11 for electrode sensing.
-Dissolved ammonia penetrate the membrane of
electrode, and dissolve again in inner solution of
electrode, result in PH change of inner solution.
NH₃ + H₂O  NH₄+ + OH- (inner solution)

-Ammonia concentration in water is determined
by PH change of inner solution of electrode.
 
■ Characterize
-Wide bore design for sample vessel and sample inlet tube, prevent of tube blocked.
-Inlet and drain are nearly not possible to be blocked by suspense solids because of air actuate valves.
-Graphic interface, easy of operate.
-Touch panel with pop-up all function keypad.
-Build in data logger for data display and history data browse.
-Alarm message display and record.
-Analyzer auto diagnose function, least maintain man power.
 
 
■ Setup
-Sample: pressure > 0.5 Bar
              flow : 10 ~ 300 L/hour
-DI water : > 0.5 Bar
-Power : 85 ~ 250 VAC±10%, 50 ~ 60Hz
 
■ Application
-Drinking water and surface water monitor.
-Process fluid monitor and control.
-Waste water monitor.
 
■ Specification of 9390-NH3 on line analyzer