CN204945079U - A kind of electric conductance meter calibration system - Google Patents
A kind of electric conductance meter calibration system Download PDFInfo
- Publication number
- CN204945079U CN204945079U CN201520726278.7U CN201520726278U CN204945079U CN 204945079 U CN204945079 U CN 204945079U CN 201520726278 U CN201520726278 U CN 201520726278U CN 204945079 U CN204945079 U CN 204945079U
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- Prior art keywords
- electric conductance
- calibration system
- waver
- conductance meter
- meter calibration
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Abstract
A kind of electric conductance meter calibration system, it is characterized in that: described electric conductance meter calibration system comprises a series of precision resistance, waver, single-chip computer control system, LCD display, KCl standard solution, high-accuracy calibration cell, advantage of the present utility model: electric conductance meter calibration system described in the utility model has that detection efficiency is high, measuring accuracy high, can meet the calibration operation requirement of conductivity meter.
Description
Technical field
The utility model relates to gauge check technical field, has particularly related to a kind of electric conductance meter calibration system.。
Background technology
Conductivity meter is a kind of conventional electrochemical measurement instrument, has been widely used in the industries such as thermoelectricity, chemical industry chemical fertilizer, metallurgy, environmental protection, pharmacy, biochemistry, food and tap water at present, has been mainly used in the continuous monitoring of conductivity value in solution.
JJG376-2007 " conductivity meter " vertification regulation is implemented on May 21st, 2008.The situation that new order develops according to current conductivity meter, adds the calibrating of the temperature coefficient error of indication and calibration two parts of cell constant of conductometric vessel.But this code still lacks operability for the calibrating of online conductivity meter.Therefore need to design a kind of electric conductance meter calibration system according to the requirement of vertification regulation, realize the accurate calibrating to conductivity meter.
Summary of the invention
The purpose of this utility model is that the applying unit for conductivity meter provides the measurement data of fair and accurate by carrying out measurement verification to conductivity meter, and spy provides a kind of conductivity meter calibrating installation.
The utility model provides a kind of electric conductance meter calibration system, it is characterized in that: described electric conductance meter calibration system comprises a series of precision resistance 1, waver 2, single-chip computer control system 3, LCD display 4, KCl standard solution 5, high-accuracy calibration cell 6; Wherein: a series of precision resistance 1 is connected with waver 2, one end of waver 2 is connected with tested conductivity meter, the other end of waver 2 is connected with single-chip computer control system 3, LCD display 4 is connected with single-chip computer control system 3, KCl standard solution 5 is connected with tested conductivity meter, and high-accuracy calibration cell 6 is connected with KCl standard solution 5.
As preferred technical scheme, also comprise power circuit, described power circuit adopts full-shield structure to disturb little transformer mu balanced circuit.
Advantage of the present utility model:
Electric conductance meter calibration system described in the utility model has that detection efficiency is high, measuring accuracy high, can meet the calibration operation requirement of conductivity meter.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is a kind of electric conductance meter calibration system theory structure schematic diagram.
Embodiment
A series of precision resistance 1 carries out single resistance access way to avoid introducing series inductance, the precision resistance of typical magnitude multiple in different range is organically combined by it, form a network, to need to choose different range according to difference, reach convenient, practical purpose.On waver 2, a remaining contact, road is as display anchor point, introduce single-chip computer control system 3, the selection mode of single-chip computer control system 3 control band switch 2, select the resistance value of a series of precision resistance 1 further, and adopt numerical monitor mode to carry out nominal value display, being shown by LCD display 4 guides operator to enter corresponding operation interface, the electronic display unit displayed value of LCD display 4 displayed value and tested conductivity meter compares, thus achieve the calibrating of electronic unit, and power circuit adopts full-shield structure to disturb little transformer mu balanced circuit.
KCl standard solution 5 is put in high-accuracy calibration cell 6, regulates high-accuracy calibration cell 6 to make temperature constant at (20.00 soil 0.05) DEG C, constant temperature more than 2 hours.Open this verification system, and tested conductance cell is reliably connected with it, regulate cell constant of conductometric vessel calibrating instrument.Tested conductance cell is put into KCl standard solution, after the temperature constant of tested conductance cell and KCI standard solution, reads the displayed value of cell constant of conductometric vessel verification system, thus achieve the calibrating of cell constant of conductometric vessel.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (2)
1. an electric conductance meter calibration system, it is characterized in that: described electric conductance meter calibration system comprises a series of precision resistance (1), waver (2), single-chip computer control system (3), LCD display (4), KCl standard solution (5), high-accuracy calibration cell (6); Wherein: a series of precision resistance (1) is connected with waver (2), one end of waver (2) is connected with tested conductivity meter, the other end of waver (2) is connected with single-chip computer control system (3), LCD display (4) is connected with single-chip computer control system (3), KCl standard solution (5) is connected with tested conductivity meter, and high-accuracy calibration cell (6) is connected with KCl standard solution (5).
2. electric conductance meter calibration system according to claim 1, is characterized in that: also comprise power circuit, and described power circuit adopts full-shield structure to disturb little transformer mu balanced circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726278.7U CN204945079U (en) | 2015-09-16 | 2015-09-16 | A kind of electric conductance meter calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726278.7U CN204945079U (en) | 2015-09-16 | 2015-09-16 | A kind of electric conductance meter calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945079U true CN204945079U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520726278.7U Expired - Fee Related CN204945079U (en) | 2015-09-16 | 2015-09-16 | A kind of electric conductance meter calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204945079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405461A (en) * | 2016-08-26 | 2017-02-15 | 江苏华伦化工有限公司 | Conductivity instrument verification method |
-
2015
- 2015-09-16 CN CN201520726278.7U patent/CN204945079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405461A (en) * | 2016-08-26 | 2017-02-15 | 江苏华伦化工有限公司 | Conductivity instrument verification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20160916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |