SENSORS AND SYSTEMS TECHNOLOGY PRODUCTS REVIEW
Contents
1. Examples of commercial application designs are also available such as EVM SB 08 and DGA ES Field Model Description and functions Dimensions Unit mm Scale approx 1 2 co EVM SB 08 Module for general purpose using the m detection SB 50 IC 04 SB 50 with microprocessor IC 04 lt gt Compact design CNI Q Sensor O LED fers 5VDC input JEN U 2 level alarm signal output for a 25 30 OTH remote alarm initial delay fail safe x ik O VR and other functions X NY Flammable DGA ES An example of domestic gas alarm for gas SP 12A SP 15 natural gas or LP Gas using the SP 12A 122 detection IC 05 SP 15 and IC 05 a gt A Power sup ly 100 V 220 V AC or x OO O other conditions n LED1 MS ZNRI With functions such as initial delay IC a alarm delay temperature LED2 205 OON Transformer Z compensation etc a O e Natural gas methane and propane LED3 ni OO versions CN VR Sur SN CN1 AO Relay Terminal block V Y Pre calibrated modules PCM series Combinations of sensors and small PCBs including fixed and variable resistors R These modules are calibrated at suitable conditions for indoor air quality or other applications and avoid calibration process in the assembly of applied products Field M2. Fig 25 Metal base TO 39 type 4 pin PRODUCTS REVIEW SP series 10 i SIN E air level methane propane Rs Rs at iso butane 1000 ppm iso butane hydrogen pete e ethanol 0 1 00 1000 Gas concentration ppm Fig 27 SP 11 for Hydrocarbons 10000 10 f ji k m SL H Seg air level methane iso butane Rs Rs at iso butane 1500 ppm co hydrogen ethanol ESSERE 0 1 00 1000 Gas concentration ppm Fig 29 SP 15A for Propane butane LP Gas 100 10 air level methane iso butane hydrogen ethanol CO Rg Rs at ethanol 100 ppm 0 1 0 01 1 10 100 1000 Gas concentration ppm Fig 31 SP 31 for Solvents 10000 10000 10 NES VES T maa x A mL ey EN 3 Q a o le S m D e Ud N N Ea v E r air level H 2 O methane lt _ iso butane
3. 0 0 100 Gas concentration ppm Fig 37 SP AQ2 for Indoor Air Quality general 10 1 6 s o e NS o S 8 IW x f 75 0 1 air level cd Fri o methane e x iso butane R22 p ethanol o R 134a 0 01 10 100 1000 10000 Gas concentration ppm Fig 34 SP 42 for Freon R 134a 10 t of A S Py 1 P 5 Do e o O humidity 0 1 10 100 Absolute Humidity g m Fig 36 SP MW1 for Cooking Controls general 10 1 9 L s ES a Dd 0 1 j TN air level hydrogen D ethanol A 0 01 0 1 1 10 100 Gas concentration ppm Fig 38 SP AQ3 for Indoor Air Quality smoke 11 PRODUCTS REVIEW 12 Related products Microprocessors IC series FIS develops specially designed microprocessors microcomputers for various appli
4. Fig 7 SB series with sintered metal housing PRODUCTS REVIEW SB series 10 a e o Dr o 1 Q o g S x E x ERN 2 0 c air level A En O methane X iso butane Ine hydrogen 1 ethanol 0 01 10 00 1000 0000 Gas concentration ppm Fig 8 SB 11A for Hydrocarbons 100 10 air level Rs Rs hydrogen 100 ppm o methane hydrogen ethanol CO 0 01 1 10 100 1000 10000 Gas concentration ppm Fig 10 SB 19 for Hydrogen i PSH Rg Rs in air air level W 94 O methane A hydrogen L ethanol 9 CO 10 100 Gas concentration ppm Fig 12 SB AQ1 for Air Quality Controls general Rs Rs ethanol 300 ppm 100 10 0 1 0 01 1000 Rs Rg CO 100 ppm Rs Rs in air 100 10 0 1 0 1 air level methane iso butane hydrogen ethanol CO 10 100 1000 10000 Gas concentration ppm Fig 9 SB 31 for Solvents o9 CO A hydrogen r ethanol 10 100 1000 10000 Gas concentration ppm
5. air level A methane 0 5 o CO Bi f hydrogen ethanol 92 100 1000 10000 Gas concentration ppm Fig 16 SB 95 Sensitivity at HIGH signal for methane 1000 100 E 10 c 1 LOW HIGH 0 1 100 200 300 400 500 Sensor temperature C Fig 14 SB 95 Temperature dependency characteristics amp 4 High 0 9 V Oo Fs Low 02V 7 to 5sec 10sec in air in CO or methane in air T j ra in preme 5 A oa 5 o S e 7 Uv Detection point highe low o Time Fig 15 SB 95 Operating conditions and output signal Rs Rs CO 100 ppm TO CO A hydrogen 1 10 100 1000 10000 Gas concentration ppm Fig 17 SB 95 Sensitivity at LOW signal for CO PRODUCTS REVIEW SP series General The SP series was developed using an advanced thick film printing technology By applying this technology on a small and thin ceramic substrate a 50 reduction in current and power is achieved Combinations of new design variations of sensing materials and excellent controllability have lead to improvements in sensor performance and a wide variation in the product range Structure The sensing material is formed on the alumina substrate on which the gold electrodes are printed A thick film heater of ruthenium oxide or platinum is printed on the reverse of the substrate Fig 18 The element is installed in the plast
6. Fig 11 SB 50 for CO D air level hydrogen ethanol 10 100 Gas concentration ppm Fig 13 SB AQ4 for Air Quality Controls smoke PRODUCTS REVIEW New developments SB series SB 95 CO methane sensor Using both high and low sensor temperature in the periodic temperature change method same operation method as the SB 50 it is possible to detect both CO and methane selectively with single element Fig 14 shows a typical temperature dependency characteristic of the SB 95 When the sensor is operated with high low periodic operation Fig 15 sensor signal changes according to the temperature dependency characteristics By detecting the sensor signal at sufficient timings at a high temperature for methane and at a low temperature for CO selective detection of both methane and CO has been achieved Figs 16 and 17 show the sensitivity characteristics of the SB 95 at high temperature and at low temperature signals respectively Using this concept development of CO or methane or both CO and methane detectors can be developed using the same sensor and circuit 20 g n Rs Rs at methane 1000 ppm
7. Polarity of the circuit voltage Vc is not important PRODUCTS REVIEW SP series Dimensions Fig 22 shows the dimensions of the SP series standard housing Configurations variation of housing design Fig 23 shows the variation of the SP 5 pin configuration Other variations of sensor pin layout and housing designs are available Fig 24 a SP3 type base 3 pin with compact plastic housing b SP4 type base 4 pin with compact plastic housing Fig 25 Metal base TO 39 type 4 pin Fig 26 Metal base with a sintered metal external housing Sensitivity characteristics typical data Figs 27 to 38 on the following pages show the typical sensitivity characteristics data of SP series gas sensors In these diagrams the change in sensor resistance is normalized by the Rs at specific conditions 15 0 Sintered metal m cover i Sensor 2 Holder S PC board Potting mu compound N Lead wire 11 2 Fig 26 Sintered metal housing with metal base Stainless steel mesh Sensing element Lead wire 17 0 OC Stainless steel mesh Sensing element Lead wire 3 I lt Plastic housing Plastic base n Nickel pin 9 5 ES M A S as L bed my i ZA a j 4 45 gt N Scale mm Fig 22 Dimensions standard housing Plastic type P1 Mesh type MC MP
8. re co A hydrogen ethanol 0 1 00 000 10000 100 Gas concentration ppm Fig 28 SP 12A for Methane Natural gas air level methane hydrogen ethanol co 10 100 1000 10000 Gas concentration ppm Fig 30 SP 19 for Hydrogen E a 10 o o EL T D g 5 ES r 1 E d P oc o 0 1 Lr s 0 01 1 10 E 0 1 c LA 0 01 A ES o 0 001 air level methane iso butane hydrogen ethanol co 10 100 1000 10000 Gas concentration ppm Fig 32 SP 32 for Alcohol PRODUCTS REVIEW SP series Rs Rs at R 22 100 ppm 10 0 1 0 01 Rs Rs at ammonia 100 ppm 1 0 1 0 01 Rg Rs in air 10 0 1 0 01 air level methane iso butane R 22 ethanol R 134a 0 100 1000 10000 Gas concentration ppm Fig 33 SP 41 for Freon R 22 air level HHN ammonia H2S hydrogen ethanol co L PETET 10 100 1000 Gas concentration ppm Fig 35 SP 53 for Ammonia air level H2S hydrogen ammonia rere ethanol co
9. June 1998 Version 4 2
10. R Variable gt 750 w Vu 900 mV SB 11 SB 31 SB AQ1 1000 mV SB AQ4 900 mV 3 sec 200 mV 7 sec SB 50 Remarks Polarity of Vc and V4 is important Apply the Vc and Vy as shown in the circuit diagram Heater coil Gas sensitive i semiconductor K Lead wire gt 0 3 mm Fig 1 Sensing element 100 mesh SUS 316 gauze double Sensing element Metal housing Nickel plated brass Plastic base Electrode pins Fig 2 Structure standard housing side view qp d x 23 identification mark Fig 3a Pin layout Fig 3b Equivalent circuit Vc Circuit Voltage Vy Heater Voltage R Load Resistance Ry Heater Resistance Vg Voltage across load resistance to R VRL g z Vc 3 2 O Ry Vu Q H Fig 4 Standard circuit PRODUCTS REVIEW SB series Dimensions Fig 5 shows the dimensions of the SB series standard housing Configurations Fig 6 shows the configurations of the SB series standard housing and SB 50 with active charcoal filter Other housing Special sensor housing with an external sintered metal cover is available example Flg 7 Sensitivity characteristics typical data The sensitivity characteristics of semiconductor gas sensors are shown by the relationship between the sensors resistance Rs and concentration of gas
11. FIS PRODUCTS REVIEW SENSORS AND SYSTEMS TECHNOLOGY PRODUCTS REVIEW Products range code numbers Introduction Based on its pre eminent expertise in developing Metal Oxide Semiconductor Gas Sensors FIS today offers a range of products covering a wide field of applications including Flammable gas detection Toxic gas detection Indoor air quality controls Combustion monitoring controls Cooking controls Ventilation controls The new range of semiconductor gas sensors developed by FIS has achieved an unprecedented reduction in heater power consumption while preserving the typical features of semiconductor gas sensors such as High reliability Long life Fase of operation Low cost Products range code numbers The range of FIS products and the numbering system of he different models are illustrated here The basic features and primary applications of FIS products are described on the following pages FIS also develops and supplies various products including micro computers sensor evaluation units and others such as electrochemical or optical sensors FIS always finds the most effective approach to improve gas detection technologies by studying the combination of both sensor technologies and application software FIS will continue to develop new sensors to meet the demands of the marketplace 5 P QO P1 C Bulk ty
12. W R 134a SB 42 Py 120 mW SP 42 Py 400 mW Toxic gases 50 59 Carbon monoxide SB 50 Py 120 mW max SB 500 Py 120 mW max Hydrogen sulphide SP 51 under study Ammonia SB 53 under study SP 53 Py 315 mW Oxidizing gases 60 69 Ozone SP 61 under study Nitrogen oxides SB 62 under study Chlorine SP 65 under study Cooking controls MW General purpose SP MWO P 400 mW Humidity SP MW1 Py 400 mW Alcohol SP MW2 under development Combustion gas SP MW3 under development Indoor Air Quality AQ General purpose SB AQ1A Py 120 mW SP AQ1 SP AQ2 Py 315 mW controls air purifiers SP3 AQ2 SP3 AQ2Y Py 315 mW ventilation control systems Cigarette smoke SB AQA Py 140 mW SP AQ3 P4 315 mW CO SB6 AQ6 under development SP6 AQ6 Air Damper control AD Gasoline exhaust SB AD1 under development SP AD1 SP AD3 under development in automobiles gas Diesel exhaust gas SB AD2 under development SP AD2 SP AD3 under development Notes Using a Dynamic Driving method in the heater operation pulse voltage the average heater current can be reduced to 25 mA example with 5 V Variation of heater voltage is available Standard 5 V option 1 12 V and option 2 24 V Pre classified version is available for the SP 11 PRODUCTS REVIEW SB series General The SB series achieves a dramatic reduction of power consumption in semiconductor gas sensor applications Compared with conv
13. cations such as indoor air quality controls CO detection domestic gas alarms etc Application of IC series enables efficient and economical solutions in the development of applied products b 28 15 ie See rr EE cr rc rrr yo 49 n 3 S m H co us a S 3 g SSS SS SS SS SSS 3 1 14 y 4 26 1 max 4 gt 25 6 0 2 I m m m m al E n E a m 1 0 0 1 0 46 0 1 m e gt 1 243TYP 1 778 unit mm Fig 39 Standard compact plastic DIL package 28 15 LOT ff ff fl ITI 11 8 0 3 a S s oO H E o bii E E Y 15x04 L UU TUHUUUUUIUU 1 14 E B 18 9 max n y ry SO 43201 1274005 S Le gt je A S unit mm Fig 40 Flat package for SMD Field Model Description Features and functions CO detection IC 04 1 OTP A series of microprocessors for driving the mini SB Heater power supply Dynamic Driving method signal IC 04 2 1 50 sensor for reliability low power quick response detection periodic sensor temperature change OTP and low cost CO detectors These microprocessors operation include useful functions for CO alarm devices Alarm functions including various options IC 04 2 2 Variations of functions and units are available with Temperature and humidity compensation EMC1004 different ver
14. entional gas sensors only 15 of the power is required to detect methane propane or other gases Using this design increased sensitivity and improved cross sensitivity in flammable gas detection CO or solvents detection with quick response are achieved Structure The sensing element is a mini bead type semiconductor mainly composed of tin dioxide nO A heater coil and an electrode wire are embedded in the element Fig 1 The element is installed in the metal housing which uses double stainless steel mesh 100 mesh in the path of gas flow The mesh is an anti explosion feature Fig 2 The sensor has 3 pins for output signal and heater power supply The small sensor reduces the required space and the size of products The SB 50 uses an active charcoal filter as shown in Fig 6 Operating conditions Fig 3a and Fig 3b indicate the pin layout and equivalent circuit and Fig 4 shows the standard circuit of the SB series The applied heater voltage regulates the sensing element temperature to obtain the specific performance of sensors The change in the sensor resistance is generally obtained as the change of the output voltage across the fixed or variable load resistor R in series with the sensor resistance Rs Note In this circuit Pin No 1 with indication mark Fig 3a should be used as a common terminal for both heater voltage Vp and circuit voltage Vc Standard operating conditions Vc Less than 5 V DC
15. es The sensor resistance decreases with an increase of the gas concentration based on a logarithmic function see page 14 for details of sensing mechanism The standard test conditions of each model are calibrated to meet a typical target gas and concentration For example methane 1000 ppm for flammable gas detection hydrogen 100 ppm for hydrogen detection or ethanol 300 ppm for solvents detection If different conditions are required for other specific gas detection please consult FIS Figs 8 to 13 on the next page show the typical sensitivity characteristics data of SB series gas sensors In these diagrams the sensor resistance change is normalized by the Rs at specific conditions Stainless steel mesh 4 5 Li Heater coil Le Sensing element Lead wire I Sensor cover E Bi Plastic moulding 8 4 2 0 Electrode pin 0 8 Scale mm Fig 5 Dimensions standard housing Standard SB 50 with active charcoal filter 100 mesh SUS 316 gauze Active charcoal Metal housing Nickel plated brass Plastic housing Electrode pins Fig 6 Configurations standard housing and SB 50 15 0 Sintered metal cover Sensor am Holder PC board P3 Potting na compound N J ini Lead wire 11 2 ex 23 0
16. ic or mesh type housing which uses a double stainless steel mesh 100 mesh in the path of gas flow Fig 19 standard type The sensor has four pins for output signal and heater power supply and one free pin for identification Operating conditions Fig 20a indicates the pin layout and Fig 20b shows the equivalent circuit The standard circuit for the SP series is shown in Fig 21 The applied heater voltage regulates the sensing element temperature to obtain the specific performance of sensors As in the SB series the change in sensor resistance is obtained from the change in the output voltage across the fixed or variable load resistor R Standard operating conditions Vc 24 V max DC AC Vy 5 0V 496 DC AC R Variable Ps lt 15 mW Ps Vc Vat Rs Alumina Sensing substrate material Heater NI A E 7 m ey WP X E E Lead wires N piii Hn N 2mm Electrodes 0 3mm Fig 18 Sensing element F 100 mesh P4 SUS 316 gauze S double Plastic housing Sensing element Plastic base Electrode and heater pins Fig 19 Structure standard type P1 Top view 2 Rn Bottom view Fig 20a Pin layout Fig 20b Equivalent circuit O A 3 o 4 G2 5 Vc 173 tO RL B i Fig 21 Standard circuit Remarks
17. nt Sensing material S T Sensing element Sensor unit SnO particles sub micron to several ten micron y G Microscopic image of SnO particles secondary particles In the presence of CO 07 CO gt CO e O CO gt CO e O CO 2 CO 2e co gt gt S SnO x SnO aystals SnO e AN SUB several hundred co angstrom A NC Os 02 e 07 in 07 20 e Oz e gt Oy oo 120 4e20 O 1 202 1 202 a 2 07 O gt 1 202 1 20 25 gt 07 in air Low conductivity high resistance O07 gt 1 20 2e X 4 ee e e ge Potential barrier changes 120 426 207 072 120 2e lt lt gt ex E e e e e In the presence of CO High conductivity low resistance kw Sensor resistance se air level In the presence of reducing gases in air is kept at high level 3 sensor resistance decreases with e g 100 kw E increase of gas concentration g 10 o E 5 a E Reducing gas nS 1 5 4 ov VY 10 100 1000 ppm Gas concentration log scale 15 FIS INC 2 5 26 HACHIZUKA IKEDA OSAKA 563 JAPAN TEL 81 727 61 5886 FAX 81 727 61 5876 CONTACT In the interest of continued product improvement we reserve the right to change design features without prior notice revised
18. odel Description and functions Dimensions Unit mm Scale approx 1 2 PCM SP ST 01 Air quality Pre adjusted sensor module for air quality controls SP AQ series controls ST AQ series Sensor PCB cable e 5 VDC input Output signal is specified by the sensitivity to hydrogen Flammable PCM SP 02 Pre adjusted sensor module for methane gas SP 12A SP 15 or LP Gas detection with temperature 40 detection compensation 23 Sensor PCB terminal e 5 VDC input LI miig Q e Output signal is specified by the sensitivity to methane LP Gas Pre classified sensor PC version Pre classified sensors are supplied with code numbers showing sensor resistance level at specified conditions Using this version specific levels of output signal Vg are obtained in the applied products See SP 11 SP 12 User s Manual for details PRODUCTS REVIEW Metal oxide SnO semiconductor gas sensor The conductivity of Tin dioxide SnO metal oxide semiconductor materials changes according to gas concentration changes This is caused by adsorption desorption of oxygen and reaction between surface oxygen and gases These reactions cause a dynamic change of electric potential on SnO crystal and results in the decrease of sensor resistance under the presence of reducing gases such as CO methane hydrogen The figures below indicate the sensing mechanism of the SnO gas sensor Sensing eleme
19. pe Category Type Detection type Sub code Housing semiconductor S Semiconductor B Bead type Indicated in the This sub code shows P1 Plastic type 1 L Lambda P Plate type Products list the variation of P2 Plastic type 2 semiconductor P3 Plate 3 pins specifications heater MC Mesh Ceramic E Electrochemical P4 Plate 4 pins voltage or other MP Mesh Plastic P Optical T Tube type conditions S Sintered Metal PRODUCTS REVIEW Products list Series SB series SP series Small heater power consumption Reduced heater power consumption Features A 120 mW using a small gas sensing element Small size Low heater current High sensitivity to flammable gases Variation of heater voltage Suitable for portable detectors Wide variation of sensitivity battery operated devices characteristics Category No Detection gas Model power consumption Model power consumption Dual gas 90 CO and methane SB 95 P4 120 mW max Flammable gases 10 19 General purpose SB 11A P 120 mW SP 11 Pi 400 mW Methane SB 12A under development SP 12A P4 380 mW Propane butane SB 15 P4 120 mW SP 15A P 380 mW Hydrogen SB 19 P 120 mW SP 19 P4 315 mW Organic solvents 30 39 General purpose SB 31 P4 120 mW SP 31 P 315 mW Alcohol SB 30 PH 120 mW SP 32 P 315 mW Freon 40 49 R 22 SB 41 P4 120 mW SP 41 Pi 400 m
20. sions Standard product is the IC 04 2 2 Memory function for calibration SMD with SMD type package Fail safe signal etc OTP One Time Processor Domestic gas IC 05 A microprocessor for domestic gas alarms for SP Initial delay alarm delay temperature compensation alarms EMC6010 series including various functions which provide high fail safe and other functions DIP reliability in flammable gas leak detection EMC6020 SMD PRODUCTS REVIEW Modules Evaluation modules EVM series The EVM series includes modules with basic operation detection circuits and or examples of application circuits using FIS sensors and microprocessors Field Model Description and functions Dimensions Unit mm Scale approx 1 2 General purpose EVM SB 01 SB series SB 11 for flammable gas detection Pre calibrated module e g at 10 LEL for flammable gas detection Includes a standard driving circuit for evaluating the SB series gas sensor Compact design Low power consumption e 5VDC input e Vg output 0 4 V 100 White Red No Black EVM SB 07 SB series Module includes the Dynamic Driving operation circuit for the SB series Easy operation Low power and low current e 5V DC input e Vp output O EVM SB 07 O SB sensor VR2 50 u O ta 1e WRI qu VR3 Air quali
21. ty controls air purifiers EVM SB 02 SB AQ series IC 02 Module includes driving circuit for the SB AQ1 or SB AQ4 and microprocessor IC 02 using Dynamic Driving operation with low power consumption Low power and low current e LEDs indication and control signals or a fan 3 levels e 12V DC input 9 V battery operation is also possible Pre calibrated e Auto manual switch and a timer unction 90 90 0 s P S 000000000 2 s o D S O co detection EVM SB 05 SB 50 IC 04 Module for evaluating the mini CO sensor SB 50 with microprocessor IC 04 Periodic sensor temperature change operation with 10 seconds cycle High 3 secs and Low 7 secs Low current consumption using a Dynamic Driving operation method Mains power operation with no transformer 220 V and 100 V versions Low power consumption of 60 mW Visual alarm buzzer and output signals alarm and sensor signal output 95 70 O SB 50 OLED OLED Buzzer 2 9 n Thermistor O N e o IC 04 o E VR NC ald Terminal ACAC Condenser ZNR C Ys CaP M A 13 PRODUCTS REVIEW 14 Modules Example of applied products
Download Pdf Manuals
Related Search