CN103674900A - Automatic alarm turbidity detection instrument - Google Patents
Automatic alarm turbidity detection instrument Download PDFInfo
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- CN103674900A CN103674900A CN201310634259.7A CN201310634259A CN103674900A CN 103674900 A CN103674900 A CN 103674900A CN 201310634259 A CN201310634259 A CN 201310634259A CN 103674900 A CN103674900 A CN 103674900A
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Abstract
The invention provides an automatic alarm turbidity detection instrument which comprises a controller, a sensor and an alarm device, wherein the controller comprises an input module, a main control module connected with the input module, a display and key module connected with the main control module, a storage module connected with the display and key module, an output module connected with the storage module, a control module connected with the output module and a power supply module for supplying continuous stable current and voltage to all the modules; the sensor is connected with the input module through a cable; the alarm device is connected with the output module.
Description
Technical field
The present invention relates to a kind of automatic alarm turbidity measuring instrument.
Background technology
At present, along with the rising of people's living standard, China's municipal effluent disposal of pollutants produces the harm that can not estimate to rivers,lakes and seas, and improvement is polluted very urgent.The objectionable impurities of polluted-water comprises organism, inorganics, has naturally in artificial, and form has gas, liquid, suspension, emulsification, dissolving, colloid, and kind is many and complicated.Domesticly carry out at present water quality detection and must carry out in different laboratories multinomial numerous and diverse test, differentiate and detect respectively, expense is high, the time is long, existing pick-up unit, need to manually check water quality detection result, if unusual circumstance in time when water pollution surpasses safe and sanitary standard, takes effective control measure, will cause contamination accident to occur.Therefore the import of advanced technology Check processing level of increasing water quality is very necessary.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of automatic alarm turbidity measuring instrument, overcome various problems in turbidity detection technique, as accuracy of measurement is not high, stability is unreliable, unit is few, the response time is long, measurement range is little, the way of output is single, can not and alarm water quality abnormal conditions; It is little that this product has product maintenance amount, the output of Chinese numeral, and function-stable, precision is high, the feature of automatic alarm.
To this, the invention provides a kind of automatic alarm turbidity measuring instrument, comprising:
The invention provides a kind of automatic alarm turbidity measuring instrument, comprise: controller, comprising: load module, the main control module being connected with described load module, the demonstration that is connected with described main control module and key-press module, the storage module being connected with key-press module with described demonstration, the output module being connected with described memory module, the control module being connected with described output module, provide the power module of continual and steady current/voltage for described modules; Sensor, is connected with described load module by cable; And alarm, is connected with described output module.
Furthermore, described sensor adopts 90 ° of angle scattered light modes to detect the turbidity content in water, 4 to the 20mA analog current signal modes of employing transmit voltage signal, SDI-12, RS232/MODBUS or RS485/MODBUS interface protocol, so that the data that detect are transferred in described load module by cable.
Furthermore, described sensor measurement scope is 0 to 10000NTU.
Furthermore, described main control module comprises data processing unit and computing unit.
Furthermore, described demonstration and key-press module show current value, and menu editing function is provided simultaneously, and display screen can provide numeral, Chinese character, English output.
Furthermore, described demonstration and key-press module adopt 8 thin film switches.
Furthermore, described output module uses 4 to 20mA industrial standard electric currents, 0 to 20mA industrial standard electric current, MODBUS digital communication agreement, PROFIBUS digital communication agreement, or HART digital communication agreement is by current data with parameter is transferred to outside PC or programmable logic controller (PLC) carries out focusing on of data.
Furthermore, described controller adopts other peripherals of Control.
Furthermore, described alarm surpasses predetermined upper range for detection of the turbidity numerical value one of described output module output and sends alerting signal.
Adopt technique scheme, after switching on power, described power module provides continual and steady current/voltage for quality detector; When described sensor is placed in corresponding occasion, described load module therefrom reads relevant data through described sensor; Then described load module passes to the data that comprise in signal source analysis and the further senior calculating of carrying out data in described main control module again; Finally by described demonstration and key-press module, current value is represented to user with display screen, menu editing function is provided simultaneously, user can use button to revise voluntarily some parameters and configuration according to oneself requirement.Display screen can provide numeral and Chinese character output to facilitate user to read; Final data is stored by described storage module record.Meanwhile, described output module uses HART, and the agreements such as PROFIBUS or electric current output are by current data and parameter is transferred to outside PC or programmable logic controller (PLC) carries out focusing on of data.Described alarm is connected with described output module, and when water quality detection results abnormity, described alarm sends alerting signal.
Compared with prior art, the invention has the advantages that the on-line continuous measurement that realizes turbidity, left unguarded, realizes real automatic water quality monitoring system.Sensor carries and cleans scraping blade function, and all fouling products that can timing automatic wiping sensor probe surface, make product maintenance amount very little.At water quality parameter, during lower than predetermined higher limit, system is sent alerting signal automatically, notifies staff to take in time corresponding control measure, effectively avoids the generation of water quality deterioration.The way of output of controller comprises: 4 to 20mA industrial standard electric currents, 0 to 20mA industrial standard electric current, MODBUS digital communication agreement, PROFIBUS digital communication agreement, or HART digital communication agreement.The sensor that the accessible measurement range of instrument is 0 to 10000NTU, minimum resolution is 0.001NTU.Described NTUShi nephelometric turbidity unit, show described sensor with incident light direction at an angle of 90 on measure scattered light intensity.Instrument is by 110 to 220VAC ac power supplies, and optional 24VDC powers, and service area is wide.Instrument can show numeral, Chinese character, English, by the thin film switch of 8 buttons, can easily to all parameters in instrument, arrange.Turbidity detector is widely used in: in the water in waterworks, municipal wastewater factory, chemical plant, field, stream lake, river, turbidity detects.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail:
As shown in Figure 1, controller 1, comprising: load module 11, be connected main control module 12, the demonstration that is connected with described main control module 12 and key-press module 13, the storage module 14 being connected with key-press module 13 with described demonstration, the output module 15 being connected with described memory module 14, the control module 16 being connected with described output module 15, provide the power module 17 of continual and steady current/voltage for described modules with described load module 11; Sensor 2, is connected with described load module 11 by cable;
And alarm 3, is connected with described output module 15.
After switching on power, described power module 17 provides continual and steady current/voltage for quality detector; When described sensor 2 is placed in corresponding occasion, described load module 11 reads through described sensor 2 data that detect; Then described load module 11 passes to the data that comprise in signal source analysis and the further senior calculating of carrying out data in described main control module 12 again; Finally by showing with key-press module 13, current value is represented to user with display screen, menu editing function is provided simultaneously, user can use button to revise voluntarily some parameters and configuration according to oneself requirement.Display screen can provide numeral and Chinese character output to facilitate user to read; Final data is stored by described storage module 14 records.Described output module 15 uses HART, and PROFIBUS or electric current output protocol are by current data and parameter is transferred to outside PC or programmable logic controller (PLC) carries out focusing on of data.Described alarm 3 is connected with described output module 15, and when water quality detection results abnormity, alarm 3 sends alerting signal.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. an automatic alarm turbidity measuring instrument, is characterized in that, comprising:
Controller (1), comprising: load module (11), be connected main control module (12), the demonstration that is connected with described main control module (12) and key-press module (13), the storage module (14) being connected with key-press module (13) with described demonstration, the output module (15) being connected with described memory module (14), the control module (16) being connected with described output module (15), provide the power module (17) of continual and steady current/voltage for described modules with described load module (11); Sensor (2), is connected with described load module (11) by cable; And,
Alarm (3), is connected with described output module (15).
2. automatic alarm turbidity measuring instrument as claimed in claim 1, it is characterized in that, described sensor (2) adopts 90 ° of angle scattered light modes to detect the turbidity content in water, 4 to the 20mA analog current signal modes of employing transmit voltage signal, SDI-12, RS232/MODBUS or RS485/MODBUS interface protocol, so that the data that detect are transferred in described load module (11) by cable.
3. automatic alarm turbidity measuring instrument as claimed in claim 1, is characterized in that, described sensor (2) measurement range is 0 to 10000NTU.
4. automatic alarm turbidity measuring instrument as claimed in claim 1, is characterized in that, described main control module (12) comprises data processing unit and computing unit.
5. automatic alarm turbidity measuring instrument as claimed in claim 1, is characterized in that, described demonstration and key-press module (13) show current value, and menu editing function is provided simultaneously, and display screen can provide numeral, Chinese character, English output.
6. automatic alarm turbidity measuring instrument as claimed in claim 1, is characterized in that, described demonstration and key-press module (13) adopt 8 thin film switches.
7. automatic alarm turbidity measuring instrument as claimed in claim 1, it is characterized in that, described output module (15) uses 4 to 20mA industrial standard electric currents, 0 to 20mA industrial standard electric current, MODBUS digital communication agreement, PROFIBUS digital communication agreement, or HART digital communication agreement is by current data with parameter is transferred to outside PC or programmable logic controller (PLC) carries out focusing on of data.
8. automatic alarm turbidity measuring instrument as claimed in claim 1, is characterized in that, described controller (1) adopts other peripherals of Control.
9. automatic alarm turbidity measuring instrument as claimed in claim 1, is characterized in that, described alarm (3) sends alerting signal for detection of the turbidity numerical value one of described output module (15) output over predetermined upper range.
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| CN201310634259.7A CN103674900A (en) | 2013-11-30 | 2013-11-30 | Automatic alarm turbidity detection instrument |
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| CN201310634259.7A CN103674900A (en) | 2013-11-30 | 2013-11-30 | Automatic alarm turbidity detection instrument |
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Cited By (2)
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| CN104190120A (en) * | 2014-08-28 | 2014-12-10 | 云南大红山管道有限公司 | Pulp leaking and mixing alarm system for concentration basin |
| CN104849238A (en) * | 2015-06-10 | 2015-08-19 | 浙江诸暨奇创电子科技有限公司 | Infrared turbidity detection device |
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Application publication date: 20140326 |