SP3S-AQ2-01 SPECIFICATIONS MODEL: TYPE: SPECIFICATION No. DATE OF ISSUE SPECIFICATIONS FOR: SP3S-AQ2-01 AIR QUALITY SENSOR S-0403-03 18 March, 2004 Dimensions 0.7 Status Name Date Original Junko Yanagitani 18 March, 2004 Confirmed by Date of issue 7.6 0.7 Sensing element Metal housing Plastic base Electrode pin Distribution Number of copies Date User Distributor FIS 2.54 2.54 Signatures 0.8 0.8 Scale: mm 0.8 Date: User: Date: FIS: FIS Inc. 3-36-3 Kitazono, Itami, Hyogo 664-0891, Japan Tel: +81-72-780-1800, Fax: +81-72-785-0073 http://www.fisinc.co.jp, E-mail: info@fisinc.co.jp 1 / 6
Table of contents 1. Application Page 3 2. Parts Name/Number Page 3 3. Sensing element,dimensions and materials Page 3 4. Absolute Maximum Ratings Page 4 5. Standard Circuit and operating conditions Page 4 6. Sensitivity Characteristics Page 5 7. Mechanical Characteristics Page 5 8. Handling of this Specification Page 6 9. Supplementary items Page 6 History of revisions Ref.No. Date Notes Proposed by Approved by Original 18 March, 2004 Standard specification Junko Yanagitani FIS Q.A.G 2 / 6
1. Application This specification is with regards to the SP3S-AQ2-01 which is specified for Air Quality Controls (e.g. for air purifiers, ventilation control systems, etc.)for. 2. Parts Name/Number Type: Model: Air Quality Sensor SP3S-AQ2-01 3. Sensing element,dimensions and materials Alumina substrate Sensing material Heater Sensing element Lead wires Metal housing Sensing element Electrodes Plastic base Electrode pin R H R S 1 2 Equivalent circuit 3 1 2 3 Dimensions materials NO. Parts Materials Conditions 1 Sensing material Metal oxide semiconductor Activated tin dioxide (SnO 2 ) 2 Substrate Alumina (Al 2 O 3 ) High purity alumina ceramic 3 Heater Ruthenium oxide (RuO 2 ) Thick film printed heater 4 Electrode Gold (Au) Thick film printed electrode 5 Lead wire Gold-palladium-molybdenum alloy 50 µm ø 6 Metal housing Brass 7 Plastic base PBT (UL 94HB) 3 / 6
4. Absolute Maximum Ratings4. Absolute Maximum Ratings Parameter Symbol Maximum Rating Remark Heater Power Consumption P H Average heater power consumption is 210mW (pin 1-3) Circuit Voltage V C Maximum 5.5 V DC Load Resistance R L Variable (P S < 10mW) Ps=(V S -1/2VH) 2 /R S OperatingTemperaturerange T OP 0 C to 40 C Condensation must be avoided StorageTemperature range Tst 0 C to 60 C Condensation must be avoided Note Avoid any contamination by organic solvents (e.g.ipa: isoprophyl alcohol) 5. Standard Circuit and operating conditions Parameters Conditions Remarks Standard temperature and humidity Test gas 20 C ± 2 C, 65% RH ± 5% 1) Clean air 2) Hydrogen( purity > 99% ) 10ppm (+) 1 Standard operating condition: DC R H V C /V H 3 RL 2 RS V RL V C = Circuit Voltage V H = Heater Voltage R H = Heater Resistance R L = Load Resistance (-) R S = Sensor Resistance V C : 5.0 V ± 0.1V V H : 5.0 ± 0.05V R L : 10 kω ± 1% Pre-heating time more than 48hours At 20 C ± 10 C, 65% RH ± 15% in clean environment 4 / 6
6. Sensitivity Characteristics No Parameter Conditions Specifications Remark 1 Sensor resistance in air R S (air) 5kΩ to 20kΩ 2 Sensitivity to H 2 R S (H 2 10ppm) R S (air) 0.30 ± 0.15 20 C, 65% RH 3 Heater current Is 42 ma at V H = DC 5.0V 4 Heater resistance R H 91 Ω± 5% at room temperature Note-1: The above characteristics are specified using the Standard Circuit and operating conditions shown in section 5. Note-2: Recommended load resistance (RL) value for actual application is 3.9kΩ (the RL value can be valuable depending on the type of application). Note-3: The specification of 1. sensor resistance in air is based on the atmospheric conditions at FIS. The resistance range in different conditions may vary from the above values. 7. Mechanical characteristics No Parameter Conditions Specifications 1 Strength on the base - housing connection Pulling the housing from plastic base vertically More than 29.4N (3 kgf) 2 Vibration Acceleration: 12.7m/s2 (1.3G) Frequency range: 5 to 500 Hz Condition of changing the sweep: Logarithmic Duration of sweep: 40min. Direction of vibration: 3 dimensions (X,Y,Z) Duration: 6hr of each direction Should satisfy the specifications shown in 6.Characteristics 3 Drop and impact Natural drop from the height of 1m Floor material: Concrete Number of drops: 3 (three) times Should satisfy the specifications shown in 6.Characteristics 4 Soldering specifications Standard: JISC0050 (1997) 4.7.2 Soldering iron: Trowel point B Soldering times: 2~3 seconds More than 68.6 N (7kgf) Good fluidity should be kept for easy soldering 5 Insulation resistance 6 Dielectric strength when DC 500 V is applied between the live parts and a metric port without electric current when 1000 V is applied between the live parts and a metal part without electric current for 1 minute 5MΩ or more Dielectric breakdown should not occur (leak current: less than 1 ma) 5 / 6
8. Handling of this specification Modifications or amendments of this specifications shall be made based on the agreement between the user and FIS. Modifications or amendments of this specifications shall be confirmed by all concerned parties. This specification should not be disclosed to any other parties without agreement. 9. Supplementary items 1. Storage condition In order to avoid any possible influence during the storage period, the following storage conditions are recommended. - keep in the sealed plastic package supplied from FIS. - keep in a clean environment for avoiding any solvents or aggressive gases (i.e. hydrogen sulfide: H 2 S, sulphur dioxide: SO 2, chlorine: Cl). If the sensors are exposed to such gases (i.e. > 100ppm), sensitivity characteristics may be affected. - contact with silicone compounds must be avoided. - avoid condensation. 2. Marking - The model name and production lot number are printed as below: 3 7 1 : 2003 - July - 1st production lot model Serial number: 1-9, A-Z Month: 1-9, X, Y, Z (from Jan to Dec) Year: 1st digit of year (e.g.3: 2003) QS-01 371 production lot number 3. Application guidelines - Sensors must be used under the operating conditions shown in 4. Absolute Maximum Ratings and 5. Standard Circuit and operating conditions on page 4. - Use the SP3S-AQ2 sensors in the specified temperature/humidity range shown in 4. Absolute Maximum Ratings. - Avoid vibration shock and dropping it. - Burn-in and calibration must be carried out in a clean environment. - For soldering sensors on PCBs, we recommend manual soldering. If flow soldering is used, fume and flux may contaminate the sensors. - Do not bend or cut sensor pins before or after assembly for avoiding shocks which may damage the sensing element. - Do not apply any solvents on the sensor units. - In case of using any gases such as butane from a cigarette lighter, spray or alcohol vapour for testing purposes, do not apply such gas/solvent directly on the sensor unit (keep a distance of more than 10 cm and apply gas/solvent gently). 6 / 6