JPB-70A Dissolved Oxygen Digital Pen Type DO Meter Analyzer

Introduction:

JPB-70A pen type intelligent dissolved oxygen analyzer (hereinafter referred to as the instrument), mainly for the convenience of users to carry out on-site operation of the design.

The instrument can be divided into two parts: sensor and electronic unit. The sensor film type polarography oxygen electrode. The electronic unit is composed of a high integrated circuit. Instrument using dot matrix liquid crystal display, can display dissolved oxygen value and temperature.

Main Features:

LCD

Automatic temperature compensation, fast response time

Portable, easy to carry

Factory dissolved oxygen electrode (polarography membrane type)

Main Specifications:

Intelligent Dissolved Oxygen Analyzer

range of measurement: Dissolved oxygen: (0 ~ 20) mg/L

Temperature: (0~40) C

Basic error: Dissolved oxygen: + 0.3mg/L

Temperature: 1 degree C

Residual current: no more than 0.15mg/L

response time: no more than 30s (20 C 90% response)

The range of automatic temperature compensation: (0~40) C

power: 1.5V button battery (4)

shape size (mm): 40*185 (without electrode) 8, weight: 88g

Digital Dissolved Oxygen Meter

1. 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. 2. The instrument can be divided into two parts, the sensor and the electronic unit. 3. The polarographic film coated oxygen electrode was used in the sensor. 4. The electronic unit is composed of high integrated circuits. 5. The instrument can display the value of dissolved oxygen and temperature by using a lattice liquid crystal display.

DO-Tester

1. LCD 2. Automatic temperature compensation and quick response time 3. Portable, easy to carry 4. Dissolved oxygen electrode (polarographic film covering) of the factory

Water Quality Tester

1. 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. 2. 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. 3. 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)

Wash the electrode in clean distilled water, press and hold the “CAL” key for 5 seconds, at this time CAL and 0 will be displayed alternately, press the CAL key to perform zero calibration, put the electrode in oxygen-free water, stir the electrode, and wait for the value display to stabilize , After pressing the CAL key to confirm the calibration, End calibration is displayed. At this time, the display “FULL” flashes and enters saturation dissolved oxygen calibration

Saturated dissolved oxygen correction

Rinse the electrode in clean tap water, short press the “CAL” key for 5 seconds, then CAL and FULL will be displayed alternately, press the CAL key to perform saturation dissolved oxygen calibration, put the electrode in saturated dissolved oxygen water, stir the electrode, and wait for the value to display After it is stable, press the CAL key to confirm the calibration, the End calibration is displayed

Package Included:-

1 x Dissolved Oxygen DO Meter JPB-70A with accessories