CN105137001A - CD3 multi-parameter gas measuring device - Google Patents
CD3 multi-parameter gas measuring device Download PDFInfo
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- CN105137001A CN105137001A CN201510647584.6A CN201510647584A CN105137001A CN 105137001 A CN105137001 A CN 105137001A CN 201510647584 A CN201510647584 A CN 201510647584A CN 105137001 A CN105137001 A CN 105137001A
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Abstract
The invention provides a CD3 multi-parameter gas measuring device which comprises a machine shell. The upper portion of the front side of the machine shell is provided with a gas chamber window, a sound making hole, a light emitting hole and an alarm lampshade. The middle of the front side of the machine shell is provided with a liquid crystal display screen. The lower portion of the front side of the machine shell is provided with a control button. A gas inlet is formed in the left side face of the machine shell, an emergency lamp is arranged on the upper side face of the machine shell, and the machine shell is internally provided with measuring device function parts including a gas chamber, a circuit main board, a measuring module, an alarm module, a battery and a wireless receiving and transmitting module. The performance of the device is stable, a threshold is accurate, responses are quick, precision is high, the appearance is unique, the size is small, the weight is low and the device is convenient to carry. The humanized design and the soft adjusting technology are adopted, operation is easy, use is convenient, and the machine shell of the measuring device is of an ABS high-strength full-plastic structure. A key type electronic film switch high in sealing performance is used in cooperation, a four-bit high-brightness red nixie tube is used for displaying, a sound, light and vibration combined alarm mode is adopted, alarming is clear and obvious, the alarm effect is more obvious and better, and the wireless receiving and transmitting module is arranged to upload patrolling data.
Description
Technical field
The present invention relates to a kind of apparatus for determination of gas, particularly a kind of CD3 multiparameter gas determinator.
Background technology
Multiparameter gas determinator be a kind of can the essential safe type instrument of poisonous and harmful, flammable explosive gas concentration in continuous detecting operating environment, and multiple poisonous, flammable explosive gas concentration can be detected.Be applicable to explosion-proof, toxic gas leak speedily carry out rescue work, the place such as underground pipeline or mine, effectively can ensure that the life security of staff is not encroached on, production equipment is not suffered a loss.Be applicable to the concentration of testing environment CO in Air.The multiparameter gas determinator now used.There is sensitivity and poor stability, the shortcoming that the working time is short more, be not suitable for mining work under mine, simultaneously less than normal to the sensing range of hazardous gas, precision is also inadequate, and warning system is perfect not, also just reduces security performance to a certain extent.
Summary of the invention
For the problems referred to above, the present invention proposes CD3 multiparameter gas determinator.
For solving above technical matters, technical scheme provided by the invention is:
CD3 multiparameter gas determinator, it is characterized in that, comprise casing, described casing is rectangular parallelepiped, and the top in the front of its rectangular parallelepiped being is provided with air chamber window, phonate hole, light hole and warning lampshade, middle part is provided with LCDs, bottom is provided with control knob, and the left surface of casing is provided with air intake opening, and the upper side of casing is provided with emergency light, the trailing flank of casing is provided with fixing jaws, and described fixing jaws is provided with dismountable geometrical clamp;
The length of described casing, width, upper thickness and lower thickness are respectively L1, D1, H1 and H2, described L1=123mm, described D1=63mm, described H1=28.5mm, described H2=24.5mm;
Described air chamber window quantity is 3, air chamber window is rounded, 3 air chamber windows are triangle distribution, described phonate hole is positioned at the left upper in the front of the rectangular parallelepiped that casing is, described light hole is positioned at below warning lampshade, described warning lampshade is positioned at the upper right corner place in the front of the rectangular parallelepiped that casing is, described LCDs is square, it is pasted with steel and protects glass-film, described control knob is keyswitch type electronic thin film switch, and described air intake opening is rounded, and described emergency light is LED paster light source, quantity is multiple, and is equidistantly uniformly distributed;
Analyzer functional part is provided with in described casing, comprise air chamber, circuit main board, measure module, alarm module, battery and radio receiving transmitting module, described circuit main board is fixedly installed in casing, comprise supply line, amplifilter, A/D converter, single-chip microcomputer and microcontroller, described air chamber is positioned at immediately below air chamber window, be square, described mensuration module comprises methane transducer, oxygen sensor and carbon monoxide transducer, described methane transducer, the induction end of oxygen sensor and carbon monoxide transducer is fixedly installed in air chamber, its output terminal is connected with circuit main board, and through circuit main board successively with amplifilter, A/D converter, microcontroller is connected with single-chip microcomputer, described single-chip microcomputer is connected with LCDs, described alarm module is connected with the microcontroller on circuit main board, comprise sound alarm subsystem, the light crossing-signal be made up of LED light emitting diode and vibrations alarm, described sound alarm subsystem is hummer, be positioned at immediately below phonate hole, described light crossing-signal is fixedly installed in warning lampshade, described vibrations alarm is shock sensor, vibrations alarm is positioned at the middle part of casing, and be close to the trailing flank of casing, described radio receiving transmitting module is arranged in casing, be connected with circuit main board, described battery is fixedly installed on below circuit main board, and be connected with circuit main board, and powered to the analyzer functional part in casing by the supply line of circuit main board,
Described battery is intrinsic safe battery, described intrinsic safe battery comprises the lithium ion battery of 1 joint mine anti-explosion, the thermistor being connected to lithium ion cell positive and fender, the lithium ion battery model of described mine anti-explosion is PL183650, described fender bag attached with lithium ion battery and thermistor outer, fender thickness is D2, described D2>1mm;
Described fixing jaws is upper end open, the hollow bayonet socket that lower end is closed, be square, its upper surface is L2 apart from the distance of the upper side of casing, described L2=43mm, described geometrical clamp comprises clamp and clamping plate, described clamp and fixing jaws corresponding matching, and insert in fixing jaws, described clamping plate are connected with clamp by torsionspring, the front end of clamping plate is bare terminal end, described bare terminal end is tabular, the two sides of its tabular being is respectively clamping face and gripping surface, described clamping face is close to the trailing flank of casing, which is provided with tooth, the cross section undulate of described gripping surface, which is provided with anti-slip veins.
Above-mentioned CD3 multiparameter gas determinator, wherein, described radio receiving transmitting module is using amplitude modulation AM as wireless communication mode, its frequency of operation is 315MHZ/433MHZ, frequency stability is ± 75KHZ, emissive power≤500mW, quiescent current≤0.1UA, transmitter current is 3 ~ 50mA, and operating voltage is DC3.7V.
Above-mentioned CD3 multiparameter gas determinator, wherein, is provided with data-carrier store in described casing, and described data-carrier store is frame memory, and its memory capacity is 60 frame ~ 120 frames.
Above-mentioned CD3 multiparameter gas determinator, wherein, is sheathed with leather sheath outside described casing.
Above-mentioned CD3 multiparameter gas determinator, wherein, described air intake opening is equipped with valve.
Above-mentioned CD3 multiparameter gas determinator, wherein, described shell and geometrical clamp adopt ABS high strength ail-plastic materials to make.
This CD3 multiparameter gas determinator is at methane: (0.00 ~ 4.00) CH
4set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.05%CH
4, at carbon monoxide: (0 ~ 1000) × 10
-6alarm set point is set arbitrarily within the scope of CO, the difference of alarm indication value and setting value is no more than ± and 1 × 10
-6cO, at oxygen (0.0 ~ 25.0) %O
2set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.1%O
2, first set the alarm set point of each inductor in analyzer in use, the air that air intake opening is collected in environment by the sample mode of natural diffuseness enters in the air chamber in analyzer, each sensor detects the methane in air, the content of carbon monoxide and oxygen, and send voltage signal, above-mentioned voltage signal is after amplified frit amplifies, digital signal is converted thereof into by A/D converter, send microcontroller, and carry out digital processing by single-chip microcomputer, digital signal driving liquid crystal displays after digital processing demonstrates the concentration of tested gas, work as methane, when oxygen or carbonomonoxide concentration reach alarming value, controller control single chip computer exports control signal immediately, control alarm through circuit main board to give the alarm, sound alarm subsystem, light crossing-signal and vibrations alarm synchronously send buzzing, flash of light and vibrations, this CD3 multiparameter gas determinator also passes through single-chip microcomputer, setting clock, and be shown in liquid crystal display, the staff be convenient under mine understands time variations, be configured with radio receiving transmitting module simultaneously, when night watching, radio receiving transmitting module does not work, until night watching terminates, during charging, radio receiving transmitting module is opened, and automatically and Patrol Terminal carry out wireless connections, upload the night watching data of preservation, until after data end of transmission, radio receiving transmitting module is closed, analyzer enters charging off-mode, further, be equipped with emergency light, emergency light power supply and battery relatively independent, be applicable to emergency condition.
This CD3 multiparameter gas determinator is not when using, and analyzer can be placed in leather sheath, with it Shu Yu, or by geometrical clamp, is held on loins.
In sum, CD3 multiparameter gas determinator of the present invention adopts high-performance sensors, micro computer digital technology and Novel electronic devices, stable performance, thresholding is accurate, be swift in response, precision is high, use-pattern adopts human oriented design, soft regulation technology, simple to operate, easy to use, analyzer shell adopts the overall plastic structure of ABS high strength, the keyswitch type electronic thin film switch of adapted high sealing performance, liquid crystal display is pasted with steel and protects glass-film, not only durability is high, cut novel structure, exotic shape, volume is little, lightweight, easy to carry, sound, light, the convolution alarm mode of vibrations, report to the police clear, obviously, warning effect is more obvious, better, be configured with radio receiving transmitting module simultaneously, conveniently upload night watching data.
Accompanying drawing explanation
Fig. 1 schematic diagram of the present invention.
Fig. 2 casing left surface schematic diagram.
Fig. 3 casing upper side schematic diagram.
Schematic diagram in Fig. 4 casing.
Fig. 5 circuit main board schematic rear view.
Fig. 6 principle of the invention figure.
Fig. 7 battery schematic diagram.
Embodiment
CD3 multiparameter gas determinator, it is characterized in that, comprise casing 1, described casing 1 is rectangular parallelepiped, and the top in the front of its rectangular parallelepiped being is provided with air chamber window 2, phonate hole 3, light hole 4 and warning lampshade 5, middle part is provided with LCDs 6, bottom is provided with control knob 7, and the left surface of casing 1 is provided with air intake opening 8, and the upper side of casing 1 is provided with emergency light 9, the trailing flank of casing 1 is provided with fixing jaws 10, and described fixing jaws 10 is provided with dismountable geometrical clamp 11;
The length of described casing 1, width, upper thickness and lower thickness are respectively L1, D1, H1 and H2, described L1=123mm, described D1=63mm, described H1=28.5mm, described H2=24.5mm;
Described air chamber window 2 quantity is 3, air chamber window 2 is rounded, 3 air chamber windows 2 are in triangle distribution, described phonate hole 3 is positioned at the left upper in the front of the rectangular parallelepiped that casing 1 is, described light hole 4 is positioned at below warning lampshade 5, described warning lampshade 5 is positioned at the upper right corner place in the front of the rectangular parallelepiped that casing 1 is, described LCDs 6 is square, it is pasted with steel and protects glass-film 12, described control knob 7 is keyswitch type electronic thin film switch, and described air intake opening 8 is rounded, and described emergency light 9 is LED paster light source, quantity is multiple, and is equidistantly uniformly distributed;
Analyzer functional part is provided with in described casing 1, comprise air chamber 13, circuit main board 14, measure module 15, alarm module 16, battery 17 and radio receiving transmitting module 18, described circuit main board 14 is fixedly installed in casing, comprise supply line 19, amplifilter 20, A/D converter 21, single-chip microcomputer 22 and microcontroller 23, described air chamber 13 is positioned at immediately below air chamber 13 window, be square, described mensuration module 15 comprises methane transducer 25, oxygen sensor 26 and carbon monoxide transducer 27, described methane transducer 25, the induction end of oxygen sensor 26 and carbon monoxide transducer 27 is fixedly installed in air chamber 13, its output terminal is connected with circuit main board 14, and through circuit main board 14 successively with amplifilter 20, A/D converter 21, microcontroller 23 is connected with single-chip microcomputer 22, described single-chip microcomputer 22 is connected with LCDs 6, described alarm module 16 is connected with the microcontroller 23 on circuit main board 14, comprise sound alarm subsystem 28, the light crossing-signal 29 be made up of LED light emitting diode and vibrations alarm 30, described sound alarm subsystem 28 is hummer, be positioned at immediately below phonate hole, described light crossing-signal 29 is fixedly installed in warning lampshade 5, described vibrations alarm 30 is shock sensor, vibrations alarm 30 is positioned at the middle part of casing 1, and be close to the trailing flank of casing 1, described radio receiving transmitting module 18 is arranged in casing 1, be connected with circuit main board 14, described battery 17 is fixedly installed on below circuit main board 14, and be connected with circuit main board 14, and powered to the analyzer functional part in casing 1 by the supply line 19 of circuit main board 14,
Described battery 17 is intrinsic safe battery, described intrinsic safe battery comprises the lithium ion battery 31 of 1 joint mine anti-explosion, the thermistor 32 being connected to lithium ion battery 31 positive pole and fender 33, lithium ion 31 battery size of described mine anti-explosion is PL183650, described fender 33 wrap attached with lithium ion battery 31 and thermistor 32 outer, fender 33 thickness is D2, described D2>1mm;
Described fixing jaws 10 is upper end open, the hollow bayonet socket that lower end is closed, be square, its upper surface is L2 apart from the distance of the upper side of casing 1, described L2=43mm, described geometrical clamp 11 comprises clamp 34 and clamping plate 35, described clamp 34 and fixing jaws 10 corresponding matching, and insert in fixing jaws 10, described clamping plate 35 are connected with clamp 34 by torsionspring 36, the front end of clamping plate 35 is bare terminal end 37, described bare terminal end 37 is in tabular, the two sides of its tabular being is respectively clamping face 38 and gripping surface 39, described clamping face 38 is close to the trailing flank of casing 1, which is provided with tooth, the cross section undulate of described gripping surface 39, which is provided with anti-slip veins.
Wherein, described radio receiving transmitting module 18 is using amplitude modulation AM as wireless communication mode, and its frequency of operation is 315MHZ/433MHZ, frequency stability is ± 75KHZ, emissive power≤500mW, quiescent current≤0.1UA, transmitter current is 3 ~ 50mA, and operating voltage is DC3.7V.
Wherein, be provided with data-carrier store 40 in described casing, described data-carrier store 40 is frame memory, and its memory capacity is 60 frame ~ 120 frames.
Wherein, be sheathed with leather sheath outside described casing 1, described air intake opening 8 is equipped with valve, and described shell 1 and geometrical clamp 11 adopt ABS high strength ail-plastic materials to make.
The technical parameter of the CD3 multiparameter gas determinator of the present embodiment is as follows:
1, environment for use condition:
A) temperature: 0 ~ 40 DEG C;
B) relative humidity :≤98% (25 DEG C);
C) atmospheric pressure: 80kPa ~ 116kPa;
D) wind speed: (0 ~ 8) m/s;
E) storage temperature is :-40 DEG C ~+60 DEG C;
F) field of employment: there is the underground coal mine of danger of explosive mixed gas.
2, measurement range:
A) methane measurement range: (0.00 ~ 4.00) %CH
4;
B) oxygen measurement scope: (0.0 ~ 25.0) %O
2;
C) carbon monoxide measurement range: (0 ~ 1000) × 10
-6cO.
3, type of protection [of an electrical apparatus for explosive atmospheres and technical parameter:
3.1 type of protection [of an electrical apparatus for explosive atmospheres: mine intrinsic safety is held concurrently flame-proof type explosion-proof mark: ExibdI;
3.2 technical parameters: operating voltage: 3.7V; Working current: 200mA.
4, battery: analyzer adopts a joint mine anti-explosion lithium ion battery, and its model is: PL183650, Uo:4.2VDC, Io:3.8A.
5, shell adopts ABS engineering plastics, wears animality leather sheath during use.
6, physical dimension: 123 × 63 × 24.5 (mm).
7, weight: 300g.
8, analyzer adopts natural diffuseness sample mode, and analyzer measured value should adopt its displayed value of numerical monitor mode more than three (containing three), should represent measured value with percent body volume concentrations, and adopt numerical monitor, its resolution should be: methane: 0.01%CH
4; Oxygen: 0.1%O
2; Carbon monoxide: 1 × 10
-6cO, and the plus or minus that can represent displayed value.
9, fundamental error
9.1 methane fundamental errors:
9.2 oxygen fundamental errors:
| Measurement range, %O 2 | Fundamental error, %O 2 |
| 0.0～5.0 | ±0.5% |
| ＞5.0～25.0 | ±3%FS |
9.3 carbon monoxide fundamental errors:
10. warning function:
10.1 analyzer methane moiety should be able at (0.00 ~ 4.00) CH
4set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.05%CH
4.Analyzer carbon monoxide partial is in (0 ~ 1000) × 10
-6in CO measurement range, alarm set point being set arbitrarily, the difference of alarm indication value and setting value is no more than ± and 1 × 10
-6cO.Analyzer oxygen fraction is at (0.0 ~ 25.0) %O
2arrange alarm set point arbitrarily in measurement range, the difference of alarm indication value and setting value is no more than ± 0.1%O
2.
The warning sound level intensities of 10.2 analyzer sound alarm subsystem, apart from its 1m at a distance, should be not less than 75dB(A); It is far away that the visibility of light at dark place of light crossing-signal should be not less than 20m.
11, the response time:
11.1 analyzer methane response times should be not more than 20s.
11.2 analyzer oxygen response times should be not more than 35s.
11.3 analyzer carbon monoxide response times should be not more than 45s.
CD3 multiparameter gas determinator in the present embodiment is at methane: (0.00 ~ 4.00) CH
4set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.05%CH
4,at carbon monoxide: (0 ~ 1000) × 10
-6alarm set point is set arbitrarily within the scope of CO, the difference of alarm indication value and setting value is no more than ± and 1 × 10
-6cO, at oxygen (0.0 ~ 25.0) %O
2set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.1%O
2, first set the alarm set point of each inductor in analyzer in use, the air that air intake opening is collected in environment by the sample mode of natural diffuseness enters in the air chamber in analyzer, each sensor detects the methane in air, the content of carbon monoxide and oxygen, and send voltage signal, above-mentioned voltage signal is after amplified frit amplifies, digital signal is converted thereof into by A/D converter, send microcontroller, and carry out digital processing by single-chip microcomputer, digital signal driving liquid crystal displays after digital processing demonstrates the concentration of tested gas, work as methane, when oxygen or carbonomonoxide concentration reach alarming value, controller control single chip computer exports control signal immediately, control alarm through circuit main board to give the alarm, sound alarm subsystem, light crossing-signal and vibrations alarm synchronously send buzzing, flash of light and vibrations, this CD3 multiparameter gas determinator also passes through single-chip microcomputer, setting clock, and be shown in liquid crystal display, the staff be convenient under mine understands time variations, be configured with radio receiving transmitting module simultaneously, when night watching, radio receiving transmitting module does not work, until night watching terminates, during charging, radio receiving transmitting module is opened, and automatically and Patrol Terminal carry out wireless connections, upload the night watching data of preservation, until after data end of transmission, radio receiving transmitting module is closed, analyzer enters charging off-mode, further, be equipped with emergency light, emergency light power supply and battery relatively independent, be applicable to emergency condition.
This CD3 multiparameter gas determinator is not when using, and analyzer can be placed in leather sheath, with it Shu Yu, or by geometrical clamp, is held on loins.
In sum, CD3 multiparameter gas determinator of the present invention adopts high-performance sensors, micro computer digital technology and Novel electronic devices, stable performance, thresholding is accurate, be swift in response, precision is high, use-pattern adopts human oriented design, soft regulation technology, simple to operate, easy to use, analyzer shell adopts the overall plastic structure of ABS high strength, the keyswitch type electronic thin film switch of adapted high sealing performance, liquid crystal display is pasted with steel and protects glass-film, not only durability is high, cut novel structure, exotic shape, volume is little, lightweight, easy to carry, sound, light, the convolution alarm mode of vibrations, report to the police clear, obviously, warning effect is more obvious, better, be configured with radio receiving transmitting module simultaneously, conveniently upload night watching data.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1.CD3 multiparameter gas determinator, it is characterized in that, comprise casing, described casing is rectangular parallelepiped, the top in the front of its rectangular parallelepiped being is provided with air chamber window, phonate hole, light hole and warning lampshade, and middle part is provided with LCDs, and bottom is provided with control knob, the left surface of casing is provided with air intake opening, and the upper side of casing is provided with emergency light.
2. CD3 multiparameter gas determinator as claimed in claim 1, is characterized in that, the length of described casing, width, upper thickness and lower thickness are respectively L1, D1, H1 and H2, described L1=123mm, described D1=63mm, described H1=28.5mm, described H2=24.5m.
3. CD3 multiparameter gas determinator as claimed in claim 1, it is characterized in that, described air chamber window quantity is 3, air chamber window is rounded, 3 air chamber windows are triangle distribution, described phonate hole is positioned at the left upper in the front of the rectangular parallelepiped that casing is, described light hole is positioned at below warning lampshade, described warning lampshade is positioned at the upper right corner place in the front of the rectangular parallelepiped that casing is, described LCDs is square, it is pasted with steel and protects glass-film, described control knob is keyswitch type electronic thin film switch, described air intake opening is rounded, described emergency light is LED paster light source, quantity is multiple, and be equidistantly uniformly distributed.
4. CD3 multiparameter gas determinator as claimed in claim 1, it is characterized in that, analyzer functional part is provided with in described casing, comprise air chamber, circuit main board, measure module, alarm module, battery and radio receiving transmitting module, described circuit main board is fixedly installed in casing, comprise supply line, amplifilter, A/D converter, single-chip microcomputer and microcontroller, described air chamber is positioned at immediately below air chamber window, be square, described mensuration module comprises methane transducer, oxygen sensor and carbon monoxide transducer, described methane transducer, the induction end of oxygen sensor and carbon monoxide transducer is fixedly installed in air chamber, its output terminal is connected with circuit main board, and through circuit main board successively with amplifilter, A/D converter, microcontroller is connected with single-chip microcomputer, described single-chip microcomputer is connected with LCDs, described alarm module is connected with the microcontroller on circuit main board, comprise sound alarm subsystem, the light crossing-signal be made up of LED light emitting diode and vibrations alarm, described sound alarm subsystem is hummer, be positioned at immediately below phonate hole, described light crossing-signal is fixedly installed in warning lampshade, described vibrations alarm is shock sensor, vibrations alarm is positioned at the middle part of casing, and be close to the trailing flank of casing, described radio receiving transmitting module is arranged in casing, be connected with circuit main board, described battery is fixedly installed on below circuit main board, and be connected with circuit main board, and powered to the analyzer functional part in casing by the supply line of circuit main board.
5. CD3 multiparameter gas determinator as claimed in claim 4; it is characterized in that; described battery is intrinsic safe battery; described intrinsic safe battery comprises the lithium ion battery of 1 joint mine anti-explosion, the thermistor being connected to lithium ion cell positive and fender; the lithium ion battery model of described mine anti-explosion is PL183650; described fender bag attached with lithium ion battery and thermistor outer, fender thickness is D2, described D2>1mm.
6. CD3 multiparameter gas determinator as claimed in claim 4, it is characterized in that, described radio receiving transmitting module is using amplitude modulation AM as wireless communication mode, its frequency of operation is 315MHZ/433MHZ, frequency stability is ± 75KHZ, emissive power≤500mW, quiescent current≤0.1UA, transmitter current is 3 ~ 50mA, and operating voltage is DC3.7V.
7. CD3 multiparameter gas determinator as claimed in claim 1, it is characterized in that, be provided with data-carrier store in described casing, described data-carrier store is frame memory, and its memory capacity is 60 frame ~ 120 frames.
8. CD3 multiparameter gas determinator as claimed in claim 1, it is characterized in that, be sheathed with leather sheath outside described casing, described air intake opening is equipped with valve, and described shell and geometrical clamp adopt ABS high strength ail-plastic materials to make.
9. CD3 multiparameter gas determinator as claimed in claim 1, it is characterized in that, the concrete technical parameter of described CD3 multiparameter gas determinator is as follows: methane: (0.00 ~ 4.00) CH
4set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.05%CH
4, carbon monoxide: (0 ~ 1000) × 10
-6alarm set point is set arbitrarily within the scope of CO, the difference of alarm indication value and setting value is no more than ± and 1 × 10
-6cO, oxygen (0.0 ~ 25.0) %O
2set alarm set point arbitrarily in scope, the difference of alarm indication value and setting value is no more than ± 0.1%O
2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647584.6A CN105137001A (en) | 2015-10-09 | 2015-10-09 | CD3 multi-parameter gas measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647584.6A CN105137001A (en) | 2015-10-09 | 2015-10-09 | CD3 multi-parameter gas measuring device |
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| CN105137001A true CN105137001A (en) | 2015-12-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095153A (en) * | 2019-05-20 | 2019-08-06 | 安徽延达智能科技有限公司 | One kind ten unifies Multifunction Sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110095153A (en) * | 2019-05-20 | 2019-08-06 | 安徽延达智能科技有限公司 | One kind ten unifies Multifunction Sensor |
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