DWG-5088 Industrial Sodium MeterOn the basis of absorbing the current international and domestic experience and strengths of sodium meters, our company has designed a new generation of sodium meters that can fully replace imported products, have a high degree of intelligence, and are suitable for the Chinese market; Adopting a new type of gaseous alkalizer, the alkalization effect is good and the maintenance amount is small; In some applications with high alkalization requirements, such as monitoring the failure of a cation bed, it is difficult to meet the requirements solely based on the volatilization of diisopropylamine or ammonia water. We use a drum pump to start inflating and increase the volatilization of diisopropylamine or ammonia water to ensure the alkalization effect; Full Chinese display, user-friendly interface, convenient for on-site operators to use.
This product can be widely used for continuous measurement of trace sodium in media such as cation bed effluent, desalinated water, make-up water, condensate water, distilled water, and steam in power systems, chemical systems, pharmaceutical industries, and other sectors.
Basic functions

1. Two point calibration or one point calibration can be used to ensure the accuracy of low concentration measurements.
2. Using our company's high-performance measurement and reference electrodes to ensure system consistency and good matching.
3. Fully intelligent, using a single-chip microprocessor to complete sodium concentration measurement, temperature measurement, and compensation, without functional switches, adjustment knobs, and potentiometers.
4. Adopting new devices with an input impedance greater than 10¹²Oh.

Good alkalization effect and low maintenance of the entire system：
When using a sodium meter for trace sodium monitoring,The pH of the sample water must be greater than 10And ensure continuous and stable alkalization effect. DWG-5088 uses undiluted diisopropylamine as the alkalizing agent (using diisopropylamine as the alkalizing agent can maintain a constant concentration of alkalizing agent and will not produce hazardous waste). The DWG-5088 sodium analyzer abandons the use of silicone permeation tubes as alkali test tubes. The use of permeation method for alkalization causes the permeation tubes to age easily, and the alkalization effect weakens with the aging of the permeation tubes, which has a negative impact on measurement and increases maintenance Weakness. Using a gas-liquid alkalizer to continuously and stably alkalize the sample water.If the alkalization effect cannot be satisfied by the volatilization of diisopropylamine itself, start the pump to inflate and increase the volatilization of diisopropylamine.During use, only diisopropylamine needs to be supplemented, saving the trouble of replacing the permeation tube, and the alkalization effect is better.

Symbols and Terminology

E₀：This user manual and the display screenE₀Represents the zero potential of the sodium electrode.
S：This user manual and the display screenSRepresents the slope of the sodium electrode. The theoretical value is1. 000.
instrument：Refers to the secondary table,The electronic display unit referred to in the national standard.

Chapter 2 Technical Indicators

1. Measurement range: 0～100ug/L, 0～23000mg/Lresolution：0.1 µg/L、0.01mg/L

0.00pNa to 8.00pNa resolution：0.01pNa
0～60℃ resolution： 0.1℃

1. Basic error: ± 2.5%, temperature ± 0.3 ℃;
2. Automatic temperature compensation range: 0-60 ℃, with 25 ℃ as the reference;
3. Temperature compensation error of electronic unit: ± 2.5%;
4. Repetitive error of electronic unit: ± 2.5% of reading;
5. Stability: ± 2.5%/24h of reading;
6. Input impedance: ≥ 10¹² Oh?
7. Input current: ≤ 2x10^-12A；

Tested water sample: 0-60 ℃, 0.3MPa；

1. Clock accuracy: ± 1 minute/month;
2. Isolation output: 0-10mA (load<1.5)kΩ ）4-20mA (load<750 Ω);
3. Output current error: ≤± 1% FS;
4. Data storage quantity: 1 month (1 hour/5 minutes);
5. Data retention time in case of power failure: 10 years;
6. Alarm normally open contact: AC 250V, 7A ；
7. Power supply: AC220V ± 10% 50 ± 1Hz；
8. External dimensions:440 (width) * 770 (height) * 234 (depth) mm, opening size: 390 (width) * 650 (height) mm
9. Weight: 20kg;

Working conditions: Environmental temperature: 0-60 ℃ Relative humidity:<85%