HK-3140WSA Karl-Fisher Water Content Tester is desighed and manufactured based on GB/T 7600-2014 Determination of water content in transformer oils and turbine oils in service by coulometric method, and according to Karl fischer coulomb method to test the oil. Its principle is that: Iodine can be reduced by sulfur dioxide in water. In the process of electrolysis, the produced iodine reacts with the water in the test oil to produce hydroiodate until all the water is reacted. The ending point of the reaction will be indicated by a detection unit composed of a pair of platinum electrodes. During the whole process, sulfur dioxide is consumed, which is equal to the number of moles of water. According to Faraday's law of electrolysis, the amount of electricity used in electrolysis is directly proportional to the amount of iodine, that is, to electrolyze 1mol of iodine consumes 1mol of water and requires twice the amount of 96, 493C electricity. So the water mass in the sample can be calculated according to the electrolytic electricity in the whole process, The instrument adopts colorful LED touch screen display, Chinese and English menu optional, friendly display interface, which has the easy operation, rapid response and accurate measurement characteristics. It can accurately determine the water content in the liquid, solid and gas, and widely used in power, petroleum, chemical, pharmaceutical and other industries.

◆  Adopts colorful LCD Touch-screen, display in Chinese/English, and with guiding menu, easy to operate.

◆ High precision measuring electrode generator and detection unit, which will judge the electrolytic ending point fast and accuracy, has strong anti-interference ability.

◆ Constant current electrolysis method and the max output of electrolysis current is 400mA.

◆ Adopts auto deducted blank current and balance drift compensation to improve the accuracy of measurement results obviously.

◆ Multi-level stirring speed adjustment can meet the measurement of different liquid levels and viscosities.

◆ The optional disposable syringe and needle do not need to rinse, which can avoid cross-contamination of different samples.

◆ With auto-check functions, such as open circuit and short circuit of measuring electrode, open circuit and abnormal of electrolytic electrode, etc.

◆ With the ports of USB, RJ45, RS232 to transmite data, upgrate software and access to LIMIS system.   

Specifications:

1. Range: 1μg～200mg(H2O)  

2. Resolution: 0.1μg

3. Accuracy: When the water content is 3μg～1mg: ±2μg

When the water content is more than 1mg: 0.3%

(The injection error is not included.)

4. Electrolytic Current: (0～400)mA

5. Max. Electrolytic Speed:  2.2mg/min (37μg/s)

6. Max. Power Consumption: 50W

7. Power Supply: AC(88～264)V, 50/60Hz

8. Printing: An external printer (optional) can be connected via the RS-232 serial port.

9. Communication: With the ports of USB, RJ45, RS232 to transmite data, upgrate software and access to LIMIS system.

10. Storage: 500 measuring records can be saved, and all records can be checked and printed by testing date. 

11. Overall Dimension: 400 mm×260 mm×240mm (L*W*H)

12. Weight: About 2kg

Application Environment

1.Ambient temperature: (5～35)℃;

2.Relative environment humidity: ≤85%RH

3.Power supply: AC(88～264)V, 50/60Hz (Default)

4.No vibration that affects performance exists around.

5.No corrosive gas exists in the surrounding air.

6.Except the geomagnetic field, no other magnetic field and electric field exist which can affect the performance.

Configure:  

1. Karl-fisher water content tester    1 set

2. Electrolytic cell kit    1 set

3. Stirring bar    1 pc

4. Syringe (0.5µL)    1 pc   

5. Syringe (50µL)     1 pc

6. Syringe (1mL)      1 pc

7. 9# Disposable needles (matched with the 1mL syringe)     10pcs

8. High efficiency desiccant      1 bag

9. Vacuum Grease      1pc

10. Silicon rubber pad     10pcs

11. Power cord    1 pc

12. Fuse     2 pcs

13. Instruction manual     1 copy

14. Quality certificate      1 slice

15. Warranty card      1 slice

Optional Parts

1. Printer (01.19.09.01.05)

Note: The printer will be connected with the RS-232 serial port.

2. Print paper (01.19.09.01.04)