Qiwei DDB-11A conductivity meter portable microcomputer, manual temperature compensation

DDB-11A

Conductivity meter (portable microcomputer)

Introduction

Qiwei DDB-11A conductivity meter is a portable computer-based conductivity meter, which is mainly used to measure the conductivity of various liquids. The DDB-11A conductivity meter is not equipped with a temperature electrode. DDB-11A conductivity meter is controlled by microcomputer, with high precision, good stability, high reliability, simple operation and convenient maintenance. When equipped with an electrode with a specification constant of 0.1, it can measure the conductivity of pure water or high-purity water.

Applicable industry

DDB-11A conductivity meter is widely used in light industry, chemical industry, food, medicine, health, energy, environmental protection, education and scientific research departments and other industries.

Operating Conditions

1. Ambient temperature: 5~35℃; Relative Humidity: <85%

2. Power supply: 220V±10% 50Hz±1Hz

3. No significant vibration, no other strong magnetic field interference except the geomagnetic field, so as not to affect the measurement results.

Calibration method

1) Press the "Calibration" button, "CAL" flashes, prompting to enter the calibration mode;

2) Insert the 1408μs/cm standard calibration head into the electrode holder at the back of the instrument, and wait for the measured value to be stable;

3) Press the "Calibration" button again, and the LCD display will flash "1408μs/cm"

4) After a few seconds, the "End" symbol will be displayed and it will return to the measurement mode, and the calibration can be repeated until the measurement value is stable and accurate.

Note: The DDB-11A conductivity meter has been calibrated before leaving the factory and can be used directly under normal circumstances.

Pictures

Measurement methods

1. Select the appropriate electrode according to the solution to be measured, insert the electrode plug into the socket, align the groove of the plug with the convex groove of the socket, press the top of the plug, and hear a "click".

(Plug out the plug: pinch the plug and pull it out).

2. Open the battery cover behind the DDB-11A conductivity meter , install 4 1.5V batteries (note the positive and negative levels), press the "start" button, turn on the power, and warm up for 5 minutes.

3. Wash and dry the conductivity electrode, put it into the solution, stir it and place it still, and wait for the measured value to be stable, which is the conductivity value of the solution.

Packing list：Host x1, electrode x1, calibrated seat x1, battery x1, user manual x1, product warranty card x1, Encasement box x1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.