JPB-70A DO Pen Type Dissolved Oxygen Meter

Digital Dissolved Oxygen Meter:

• The JPB-70A type pen type intelligent dissolved oxygen analyzer (hereinafter referred to as the instrument) is designed to facilitate the user to carry the operation on the spot. 

• The instrument can be divided into two parts, the sensor and the electronic unit. 

• The polarographic filmcoated oxygen electrode was used in the sensor. 

• The electronic unit is composed of high integrated circuits. 

• The instrument can display the value of dissolved oxygen and temperature by using a lattice liquid crystal display.

DO-Tester:

• LCD 

• Automatic temperature compensation and quick response time 

• Portable, easy to carry 

• Dissolved oxygen electrode(polarographic film covering) of the factory.

Water Quality Tester:

• When the electrode is not in use, the electrode should be stored in distilled water after boiling and cooling. Do not immerse the electrode in the sodium sulfite solution for a long time, because the above solution penetrates into the electrode cavity and will deteriorate the electrode performance.

• When the electrode is not used for a long time, you can take out the electrode membrane cover, rinse the electrode with distilled water, and store it in a dry place.  

• The instrument should be stored in a room where the relative humidity is no more than 85%, the temperature is no more than 40°C, and there is no corrosive gas. When the instrument is not used for a long time, the internal dry battery of the instrument should be taken out.

Zero Calibration (Zero Calibration with Oxygen-Free Water):

Saturated Dissolved Oxygen Correction: