CN2205555Y - Portable digital display water hardness and acidity meter - Google Patents
Portable digital display water hardness and acidity meter Download PDFInfo
- Publication number
- CN2205555Y CN2205555Y CN 94228463 CN94228463U CN2205555Y CN 2205555 Y CN2205555 Y CN 2205555Y CN 94228463 CN94228463 CN 94228463 CN 94228463 U CN94228463 U CN 94228463U CN 2205555 Y CN2205555 Y CN 2205555Y
- Authority
- CN
- China
- Prior art keywords
- electrode
- sensor
- electrode tip
- water hardness
- main frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000009360 aquaculture Methods 0.000 abstract description 2
- 238000004043 dyeing Methods 0.000 abstract description 2
- 239000013505 freshwater Substances 0.000 abstract description 2
- 238000007639 printing Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000009941 weaving Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 4
- 244000144974 aquaculture Species 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model belongs to a to the monitor of hardness and acidity of quality of water is applicable to the water quality monitoring of trades such as oil, chemical industry, pharmacy, rubber, weaving, printing and dyeing, environmental protection monitoring, freshwater aquaculture, boiler. The device consists of a sensor, a host and an internal circuit thereof, wherein the host is provided with a digital display and a potentiometer adjusting button, the sensor is provided with an electrode outer loop bar and an electrode inner loop bar, a replaceable calcium ion semipermeable membrane probe is installed, the probe is provided with a protective seat, the protective seat is provided with a protective cap, and the hardness or acidity of water can be respectively detected by adjusting a control circuit of the protective seat.
Description
The utility model belongs to a kind of measuring instrument of hardness and the acidity to water quality, is applicable to the water quality detection of industries such as oil, chemical industry, pharmacy, rubber, weaving, printing and dyeing, environment monitoring, freshwater aquiculture, boiler.
The method major part of China's water hardness detection at present is the relatively backward titrimetry of employing technology, acidometric titration by certain equivalent is to detected solution, phenolphthalein indicator in its solution is faded, utilize formula inverse water hardness then, its shortcoming need be set up complete control laboratory, need the cultivate professional testing staff, detection speed is slow, precision is low, influence is produced.Some is to adopt more advanced ionometer, but because the volume of instrument own is big, weight is big, can not carry, and can only be applicable to that the laboratory detects, and the price comparison costliness.Connected Design of Sensor structure is not too reasonable, is made by glass, and damage easily, life cycle weak point can not be changed again.
At above problem, the utility model provides a kind of precision height of being made up of the miniature instrument that has device for digit-displaying, sensor and some electron devices, can carry, have and to be convenient for changing electrode, solid reliable sensors, both can monitor the hardness of water quality, can monitor the water quality detection meter of water quality acidity again.
The utility model is achieved through the following technical solutions:
The utility model is made up of sensor, main frame and its internal circuit, have a digital indicator and potentiometer adjustable knob on its main frame, bottom at main frame can be connected with sensor probe, and the power supply of its circuit part is by K switch and compare amplifying circuit and integrated IC
11 pin link to each other, the Pca/PH signal probe is by filter capacitor C
3, C
7With filter resistance R
2With integrated IC
1Input end 30,31 pin be connected IC
1Output terminal and display IC
2Connect.
Its sensor is a kind of compound bar calcium ion electrode of moulding, the inside of its electrode jacket bar is with loop bar in the electrode, end at the electrode loop bar is connected with electrode tip test protection seat, on the center pit of electrode tip test protection seat, be coated with PVC calcium ion semi-permeable diaphragm, also have an electrode tip tin hat on its electrode tip protection seat; Its sensor and main frame connected mode are for can lock inserting mode.The inwall of the electrode tip tin hat on its sensor has one and seals, electrode tip with the protection loop bar by being threaded.
Advantage of the present utility model has the following aspects:
Volume little, in light weight, be convenient to field operation and execute-in-place;
2. its sensor adopts compound bar calcium ion electrode, shock resistance, stable performance, and the replaceable probe moulded;
3. both can be used for detecting water hardness, can detect the pH value of water again;
4. reaction velocity is fast, can read ion concentration in 1 minute;
5. accuracy height can be accurate to behind the radix point two.
6. the cost of a whole set of instrument is significantly less than existing equipment, and low in energy consumption, power saving, adopts liquid crystal display, and a joint 9V battery can be with about 1 year.
Specifically described by embodiment below in conjunction with accompanying drawing:
Accompanying drawing 1 is a synoptic diagram of the present utility model.
Accompanying drawing 2 is the structural drawing of sensor of the present utility model.
Accompanying drawing 3 is a circuit diagram of the present utility model.
Have digital indicator 9, potentiometer tuning knob 12 and switch 11 in the front of main frame.But a lock socket that is connected with sensor 13 is arranged in the bottom of main frame.On sensor; shield cable 1 is connected with sheath rod 2 behind the electrode, is with loop bar 4 in the electrode in the inside of electrode jacket bar 3, and electrode tip test protection seat 8 is connected with the electrode loop bar; be coated with PVC calcium ion semi-permeable diaphragm 6 on the center pit, have on the electrode tip tin hat 5 and seal 7.When test water hardness or pH value, open tin hat 5, sensor one end is immersed in the water, the other end is connected with host socket 13, opens switch 11, reconciles potentiometer and just can go into directly to read water hardness and pH value on the device for digit-displaying 9.
After the K switch closure, sensor with the Pca/PH simulating signal through filter resistance R
2, filter capacitor C
3, C
7Enter into the input end 30,31 of integrated circuit, the reference voltage of adjusting becomes and can compare, and by output terminal digital signal is being sent into display IC
2Its integrated circuit (IC)
1Can be 7106,7116 or 7126 series.
Claims (3)
1, a kind of portable digital display water hardness acidometer, it is made up of sensor, main frame and its internal circuit, it is characterized in that: have a digital indicator (9) and potentiometer adjustable knob (12) on its main frame, bottom at main frame is connected with sensor probe by socket (13), and the power supply of its circuit part is by K switch and compare amplifying circuit and integrated IC
11 pin link to each other, the Pca/PH signal probe is by filter capacitor C
3, C
7With filter resistance R
2With integrated IC
1Input end 30,31 pin be connected IC
1Output terminal and display IC
2Connect.
2, water hardness acidometer according to claim 1; it is characterized in that: sensor is a kind of compound bar calcium ion electrode of moulding; the inside of its electrode jacket bar (3) is with loop bar (4) in the electrode; end at the electrode loop bar is connected with electrode tip test protection seat (8); be coated with PVC calcium ion semi-permeable diaphragm (6) on the center pit of electrode tip test protection seat (8), also have an electrode tip tin hat (5) on its electrode tip protection seat (8): its sensor and main frame connected mode are for can lock inserting mode.
3, water hardness acidometer according to claim 1 and 2 is characterized in that: the inwall of the electrode tip tin hat (5) on the sensor has one and seals (7), electrode tip with the protection loop bar by being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228463 CN2205555Y (en) | 1994-04-28 | 1994-04-28 | Portable digital display water hardness and acidity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228463 CN2205555Y (en) | 1994-04-28 | 1994-04-28 | Portable digital display water hardness and acidity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2205555Y true CN2205555Y (en) | 1995-08-16 |
Family
ID=33841002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94228463 Expired - Fee Related CN2205555Y (en) | 1994-04-28 | 1994-04-28 | Portable digital display water hardness and acidity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2205555Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465633C (en) * | 2006-09-15 | 2009-03-04 | 清华大学 | Hand-operated electrochemistry analyzer |
| CN103134534A (en) * | 2011-11-24 | 2013-06-05 | 上海辰昊信息科技有限公司 | Meter head of wireless sensor |
| CN105403592A (en) * | 2015-10-26 | 2016-03-16 | 马国才 | Electronic pH value testing apparatus |
| CN109650524A (en) * | 2019-02-28 | 2019-04-19 | 广西建工集团第建筑工程有限责任公司 | A kind of municipal wastewater emergency processing equipment |
-
1994
- 1994-04-28 CN CN 94228463 patent/CN2205555Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465633C (en) * | 2006-09-15 | 2009-03-04 | 清华大学 | Hand-operated electrochemistry analyzer |
| CN103134534A (en) * | 2011-11-24 | 2013-06-05 | 上海辰昊信息科技有限公司 | Meter head of wireless sensor |
| CN105403592A (en) * | 2015-10-26 | 2016-03-16 | 马国才 | Electronic pH value testing apparatus |
| CN109650524A (en) * | 2019-02-28 | 2019-04-19 | 广西建工集团第建筑工程有限责任公司 | A kind of municipal wastewater emergency processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101556240B (en) | Chlorophyll measuring apparatus based on RGB (red, green and blue) three-primary colors digital signals | |
| CN205808985U (en) | A kind of Novel integrated soil temperature-moisture sensor | |
| CN101556245B (en) | Chlorophyll measurement method based on RGB digital signal | |
| CN110031437A (en) | A kind of trace level high-accuracy portable dissolved oxygen measuring device based on fluorescence method | |
| CN208314229U (en) | A kind of Portable gas image sensor fault detection means | |
| CN2205555Y (en) | Portable digital display water hardness and acidity meter | |
| CN202693518U (en) | Dissolved oxygen monitoring system based on polarographic electrode | |
| CN205484038U (en) | Multiple heavy metal ion nanometer optical detection device based on dissolve out volt -ampere | |
| CN105737797B (en) | Vertical deformation detection method and device | |
| CN101556244B (en) | Measurement method for chlorophyll content in cucumber leaves based on RGB chlorophyll meter | |
| Liu et al. | Design of hierarchical monitoring system for crop growth environment based on arduino yún development platform | |
| CN208795326U (en) | A kind of general floating ball resistance type liquidometer | |
| CN205720196U (en) | Multi-parameter water quality detecting system | |
| CN203965644U (en) | Environmental monitoring integrated system | |
| CN203298801U (en) | Humiture detection system | |
| CN208953527U (en) | A kind of multi-functional moisture tester | |
| CN206832682U (en) | A kind of liquid refractivity in-situ measurement device | |
| CN206082567U (en) | Automatic needle tubing of liquid volume is got to volume | |
| Liu et al. | Design and Realization of Portable Water Quality PH Detector | |
| CN205750428U (en) | A kind of vertical compression leak detector | |
| CN218629454U (en) | Sustainable monitoring pH testing arrangement with sensitive function that discolours | |
| CN205426218U (en) | Intelligent humidity, temperature short -term test appearance | |
| CN217484242U (en) | Acid-base test pen with infrared temperature measurement function | |
| CN212228910U (en) | Water body monitoring device capable of soaking | |
| CN218788021U (en) | Oxygen concentration and temperature tester and test tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |