Karl-Fischer Coulomb method is widely used for precise measurement of trace moisture content in samples. This method has the advantages of high accuracy and low cost. Based on the principle of Karl-Fischer coulometric titration, the instrument can accurately determine trace moisture in liquid, solid and gas, and is used in power, petroleum, chemical, pharmaceutical, food and other industries. Complying with national standard GB7600

1. Instrument Accuracy

 

Precision of Electrolytic Water Volume

 

10ug~1000ug +3ug

 

> 1000ug 0.3%

 

2. General electrical parameters

 

The measuring range is 0-100mg.

 

Resolution: 0.1ug

 

Electrolytic current: 0-400 mA

 

Maximum electrolysis speed: 2.4 mg/min

 

Power supply voltage: AC220V + 20%

 

Maximum power consumption: 30W

 

Use ambient temperature: 5-35 C

 

Use ambient humidity: <85%

 

Shape size: 270 x 210 x 125 mm

 

Weight: 5kg

The improved PWM electrolytic circuit is used to further reduce the power consumption of the instrument.

 

The high-precision measuring electrode signal generation and detection circuit makes the judgment of electrolysis end point fast and accurate, and has strong anti-interference ability.

 

The measurement results are corrected by two methods: blank current compensation of electrolyte and drift compensation of electrolyte equilibrium point.

 

Built-in three calculation formulas, report form automatic calculation and generation;

 

The key adjusts the stirring speed, which is divided into 10 gears of 0-9.

 

It has the function of automatic detection of open circuit fault and short circuit fault of measuring electrode.

 

Time-marked historical records, up to 256;

 

The calendar clock with temperature compensation can run accurately and automatically for more than 10 years when the power is off.

 

With screen protection function, long time no operation of the instrument, automatically turn off the LCD screen, prolong the life of LCD, press any key to exit the screen protection state;

 

There are RS232 ports for easy communication with computers or external micro printers.