DWS-508A Laboratory Sodium Ion Meter

Features:

    Fully intelligent: The Na concentration value, temperature measurement, compensation and calibration are performed using a single-chip microprocessor. There are no function switches and adjustment knobs.

Multi-parameter simultaneous display: Sim concentration value, mV/pNa, temperature and time are simultaneously displayed on one screen.

    The main display displays the Na concentration value in a 10×10mm format, which is eye-catching and has a long visible distance. The sub-display displays mV/pNa, temperature, status, day of the week, year, month, day, hour, minute and second in a 5×5 format to meet the user's requirements. Use habits and time benchmarks for providing meters.

    The DWS-508A is directly measured in a beaker, which is easy to operate, stable and reliable, especially in low concentration (PPB grade) measurement, and is also suitable for general water quality measurement.

    All Chinese display, friendly interface: using high-resolution LCD display module, all data, status and operation steps are Chinese characters display, there is no symbol or code defined by the manufacturer. Can be used without instructions.

    Simple menu structure: Compared with traditional instruments, DWS-508A has a lot of functions, but it is more convenient to use because it uses a different menu structure, similar to the operation method of the microcomputer!

    Text-based human-machine dialogue: The user does not have to memorize the operation steps and operation sequence, and can be used without the manual.

Data Storage and Query: Two-point standard calibration and manual input of zero and slope calibration methods to meet usage in a variety of situations.

    Notepad function: faithfully record the operation and use of the instrument, easy to manage.

Backlight function: It can be used in dimly lit or completely no light environment, and the contrast is automatically adjusted according to temperature changes.

Technical Parameters

1. Measurement range: 0~2300mg/L Resolution: 0.1?g/L, 0.01mg/L

             0.00pNa~8.00pNa Resolution: 0.01pNa

             0 to 99.9 ° C Resolution: 0.1 °C

2, the basic error: ± 2.5% of the reading, temperature: ± 0.3 ° C (0 ~ 60.0 ° C);

3, automatic temperature compensation range: 0 ~ 99.9 ° C, 25 ° C as the benchmark;

4, temperature compensation error: ± 3%;

5. Repeatability error: ±2.5% of reading;

6. Stability: ±2.5%/24h of reading;

7, input impedance: ≥ 1012Ω;

8, input current: ≤ 2x10-12A;

9, the tested water sample: 0 ~ 60 ° C;

10, clock accuracy: ± 1 minute / month;

11, the number of data storage: 3000 points;

12, data power-down continuous storage time: > 5 years;

13, power: 220V ± 10% 50 ± 1 Hz;