Nk9830 Auto Kjedahl Nitrogen Analyzer

NK9870 FullAutomatic Kjedahl Nitrogen Analyzer

Operating system

²Operating system has 7.5 inches large color touch display screen, SIEMENS CPU control platform, and can be connected to wireless mouse.

²It has Chinese display interface with perfect man-machine interaction function, and the operational process is easy to operate and understand

²Two operating modes, automatic analysis and manual analysis, can meet requirements of different experiments.

²USB data communication interface, standard configuration, is convenient for users to inquire raw data.

²Wireless mouse, standard configuration

Executive system

²It adopts self-priming diaphragm pump imported with original packaging from British to feed liquid and thoroughly weeds out pneumatic diaphragm pump used by many domestic factories. Feeding liquid byself-primingpumpcan put liquid-feeding barrel under the operating floor which has advantages of effectively saving lab room, choosing large capacity liquid-feeding barrel, etc.

Control system

²Main control system adopts advanced PLC control platform: the system control is reliable and accurate.

²Intelligent cooling water automatic switching system: when there is steam, the cooling water turns on automatically; when there is no steam, the cooling water turns off automatically. It can save cooling water to maximum extent and avoid unwanted loss which is caused because operator forgets to turn off water source.

²Pre-heat function: when it is in starting-up or ready mode, the temperature of steam cylinder always keeps 80ºC. When measure and analysis are needed, it can produce steam quickly which can shorten waiting time.

²Automatic dilution function to avoid strong acid and alkali overreaction: before adding alkali, right amount of distilled water shall be added to dilute strong acid sample in order to avoid strong reaction when strong acid meets strong alkali.

²Program of automatically washing titration cup: it can avoid non-neutral residual liquid influencing low-content or blank sample to improve system accuracy and reliability.

²Unique automatic discharge and centralized collection function of digestion tube waste: after the completion of titration, the digestion tube waste liquid will be discharged automatically and collected intensively. Automaticity is improved greatly, which reduces workers' labor intensity, solves the centralized collection and treatment of analysis liquid waste and complies with the management standards of good lab.

²Automatic discharge and centralized collection of titration liquid waste: self-priming pump automatic titration liquid waste discharge device make the waste liquid in titration cup discharge more convenient and thorough and also make the pipeline connection more easy and practical because it has the same collection entrance with waste liquid of digestion tube.

²All pipelines of the instrument adopt imported materials and have sealed structure which could extent the service life of the instrument.

²Automatic calibration system of titration liquid concentration (mol)

²Dual mode of automatic calibration method which instrument eliminates errors and traditional direct input method

²Automatic calibration method which instrument eliminates errors: this method eliminates system errors which are caused by the difference between the exterior calibration of instrument and the instrument titration (calibration) and makes the system precision higher.

Safety protection system

²Digestion tube vacant protection: the system will not heat up if the digestion tube isn't put in;

²Safety door vacant protection: if the safety door isn't pull down, the system will not heat up;

²Automatic water-replenishing function of steam cylinder: when the steam generator has no water or its water level not high enough, the system will replenish water automatically to avoid burning without water;

²Steam overpressure protection: when the pressure of steam generator system is too high because of the blocking and breakdown of steam pipeline or abnormal steam pipeline, the system will automatically stop running and give an alarm;

²Leakage protection: when system has leakage of electricity or the operator gets an electric shock by accident, the system will switch off the electricity and cut off power supply to make sure the operator is safe.

Technical indexes

NK9870

NK9870A

Working process

Adding quantitative sample dilution, alkali liquor and absorption liquid; automatically finishing distillation, titration, print and liquid-discharging.

Measurement range

0.1-240mgN

Measurement time

4-8 minutes

Measurement sample amount

Solid:<6g/sample;liquid:<16ml./sample

Titration precision

2.0uL/step

0.5uL/step

Titrating solution concentration

Direct titration samples with four titration concentrations of 0.1 mol, 0.2 mol, 0.5 mol and 1 mol

Titration system

High-precision plunger type titration system

High-precision peristaltic titration system

Executive standard

Comply with stipulations of AOAC, EPA, DIN, ISO and GB

Repeatability precision

±0.5%

Recovery ratio

≥99.5%

Data storage

Effective storage space 2G

Print function

110mm line printer which can realize user selective print function

Power

1,800W

Power supply

220V/50Hz

Requirement of cooling water

Under 25ºC

Cooling water consumption

1.5L/min(Distillation process)

FAQ

1.How canIchoose the suitable one?
Dear customer, please tell us your detailed requirements by mail or online, we will recommend the suitable one as your request.
2.Does your price is competitive?
Dear customer,we make sure to offer you the best quality with competitive price.
3.How canIpay?
Dear customer,we accept many payment term, such as T/T, Western Union…
4.WhenIreceive it after pay?
Dear customer,normal models can be delivered with 5-7days, pleasecontactus to check transport time to your address.
5.How to deliver?
Dear customer,we can send by Express, by Sea and by Air.
6.Is will be broken during transport?
Dear customer,please do not worry, we do standard export package.
7.What shouldIdo ifIdo not know how to use?
Dear customer,please do not worry, manual user will be sent together, you can also contact us with more technological support.
8.What shouldIdo if some parts broken?
Dear customer,please do not worry, we have 12months warranty except wear parts. You can also buy parts from us after 12months.Company Show
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♥♥We Supply 1 Year Warranty , And Lifelong Free Technical Guiding And Training♥♥