ff & Sif wi Bub ap HAE : Bid: faa HU TGS 826 - for the Detection of Amine Compounds Features: Applications: * High sensitivity to amine compounds * Ammonia leak detection in refrigerators * Quick response to low concentrations of * Ventilation control for the agricultural and ammonia poultry industries * Uses simple electrical circuit * Ceramic base resistant to severe environment The sensing element of TS5-824 6 ametal oxide semiconductor which hoslow conductivity in clean air, In the presence of a detectable gas, the sersors conductivity increcses depending on the gas concentration inthe ai. A simple electrical circu can conver the change lin conduc tity to. an output signal which conresponcds to the Gas concentration. The 165-824 hos high sensitivity fo amine compounds, especially ammonia gas. The sensor can defect concentrations as low cs 20ppmin ihe alr and is ideally suited to critical safety-related applications such os the detection of ammonia lecks in refigeration systenrs and ammonia detection in the ogrcultural field. The figure below represents typical sensitivity char The figure below represents typical temperature and octeisiics, all dota hoving been gathered otsiandard = humidity dependencychoroctetsiics. Again, ihe Y-axbs test conditions (see reverne side of fhsheet), The Y-cxk indicated as sensor resistance ratio (Rs/Roi, defined as is indicated os sensor resistance ratio (Rs/Ro) which ib follows: defined as follows: Rs = 5ersor ressiance at 50ppm of ammonia Rs = Sensor resistance of daplayed gases at at voarous femperotures/ humidities Yorous concentrations Ro = Sersor resistance at S0ppm of ammonia Ro = Sensor resbiance af S0oom of amnnonia at20C and 45% RH. Sensitivity Ch at. r Humidity D tency: 10 10 Trimethy! amine Semor Kesistance Ratio (Rs/Ro} Sensor Resistance Ratio (Rs/Ro} _ 0.1 0.1 0.4 1 10 100 -40) -30 Concentration (ppm) -20 -10 0 10 2006063004 Arrbient Ternperature (C) IMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENS0R5 ARE USED WILL WARY WITH BACH CUSTOMERS SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULTING OUR TECHHICAL STAFF BREFORE DEPLOY ING FIGARO SENSORSIN YOUR APPLICATION AND, IN RAR TICULAR, WHEN CUSTOMER 3 TARGET GASES ARE NOTLISTED HERE A. FIGARO CANNOT ASSUMEANY RESPONSIBLITY FOR ANY USE OF ITS SENSORS IN APRODUCT ORLAPPLICAT OM FOR WHICH SENSOR HA38 NOT BEEN SPECIFICALLY TESTED BY FIGARO, Bell Th oe Pe PPR IEA AB 1006-1018 O7TS5-BS92791 18/832 7869989278860 ww, apo) lasz, com im Il th 7c oZ 78 BF GOR Z@ ol a: 518033 fH: 07655-83279284 Aza: Sensor@apol losz. comSensin Fin Connection and Basic Measuring Circuit The nunnibers shown round the serser symbol in ihe circuit diagram atthe ight corespo nd with the pin numbers shown inthe sensersstructuredrawing (above). Since ihe sersor hes a polarity, DC voltage B always required for clout voltage (a white cot indicates pin 2). Whenthe sensors connected asshown inthe basic circuit, output across the Lood Resistor (Vi) increases asthesensors resstance (Rs) decreases, depending on gos concentration. Gg Elament: Metal oxide 6 sintered to form a thick film on the surface of an alumina ceramic Alumina ceramic Flame Arestor: tube which contains an internal heater. 2}sensor Bose: 100 nnesh SUS 314 Gouble gauze Standard Circuit Conditi \ Item Symbol Rated Values Remarks ve AL = Heater Voltage WH 5.040, 2 AC or BC ee ; ; Dt only Circuit Voltage Vo Mam. 24 pstsmiW GND 0 Load Resistance Ri Variable PSeiomW Pin #2 is indicated by a white dot onthe : eye sensor's base. Electrical Characteristics: Item Symbel Condition Specification Sensor Resistance Re Ammonia at S0ppm/Air 20K ~ 100kK0 Change Ratio of j isi Sensor Resistance Ris/Rio Rs (Ammonia at S0ppmiairi O4 O70 Heater Resistance RH Ream temperature 30.0 + 3.00 Heater Power Consumption PH WHE5.0V Ss32mWv Cross Sensitivity Rs (NH3 at 50pm) Sersor Resktance (Rs) 6 calculoted by TGS 8246 complies with the above dectical characternbiics when thesersors tested in standard conditions os speck fied below: Test Gas Conditions: 052C, &555R.H. Circuit Conditions: We =5,.000,1 (DC), Ve =S.0H0.17 (DC), Ri = 33,0kK0+1% Prehecting period before testing: More than ? cays the following formula: Rs=( Wo-1) x RL z Ve x Ks Ps " : (RS + R) Power dissipation across sensor electrodes (Ps) is calculated by the following fo mnula: Specigl Note: Amore narrowly defined rmnge of Rs orks! Ro wil be indicated oneach productioniot. Preselecied ranges of Rs or Rs/Ro are not available. fe & Sw we) Bk BB im Wi th YZ 7 FBO 2 ol MR: 518033 thi: TA PRIA A 1006-1018 Mig: OFS5-8929791 18.832 78699832 7o860 falait: ww. apel lose. com f EH: 0755-83279283 Higa: Sensor@apoal losz. com