Industrial On-line Acid Concentration Meter SJG-3083

The DYSJG-3083 Industrial Acid-Alkali Concentration Meter is a new-generation Chinese (English) microcomputer-based instrument developed by our company. It features Chinese (English) display, Chinese (English) menu-driven operation, full intelligence, multifunctionality, high measurement accuracy, and strong environmental adaptability. It is widely used in industries such as thermal power and chemical engineering, suitable for monitoring the concentration of raw solutions in high-purity water production processes using ion exchange methods, or for preparing acid washing solutions for boilers and pipelines, as well as continuous monitoring of acid, alkali, and salt concentrations in solutions.

Instrument Features:
– New Panel Design: Cast aluminum housing with a metallic finish, creating a high-end E-era water analysis instrument.
– Full Chinese (English) Display: User-friendly interface with multi-parameter simultaneous display, including conductivity, output current, temperature, time, and status on a single screen. High-resolution dot-matrix LCD module ensures all data, statuses, and operation prompts are displayed in Chinese (English), with no manufacturer-specific symbols or codes.
– Full Intelligence: Utilizes high-precision AD conversion and microcontroller processing technology to perform functions such as concentration measurement (e.g., HCl, NaOH), temperature measurement, automatic temperature compensation, automatic range switching, and self-diagnosis.
– High Reliability: Components are integrated onto a single circuit board, eliminating complex function switches, adjustment knobs, and potentiometers.
– Strong Anti-Interference Capability: Current output employs optocoupler isolation technology for strong anti-interference and long-distance transmission. Excellent electromagnetic compatibility.
– Waterproof and Dustproof Design: IP54 protection rating, cast aluminum housing suitable for outdoor use.
– Automatic Range Switching: Automatically switches ranges within the measurement range covered by the electrode.
– RS485 Communication Interface: Easily connects to computers for monitoring and communication.
– Phase-Sensitive Detection: Eliminates the influence of wires on hydrochloric acid concentration measurement.
– Automatic Measurement Frequency Switching: Prevents electrode polarization and improves measurement accuracy.

Technical Specifications:
1. Measurement Range:
– Concentration: (0.00–10.00)% HCl, (0.00–10.00)% NaOH, (0.00–20.00)% H2SO4, (0.00–10.00)% NaCl, (0.00–15.00)% HNO3 (optional);
– Temperature: 0–99.9°C;

2. Electronic Unit Basic Error:
– Concentration: ±1.0%;
– Temperature: ±0.3°C;

3. Automatic Temperature Compensation Range: 0–99.9°C;

4. Sample Solution Temperature: 0–99.9°C, 0.6 MPa;

5. Instrument Basic Error:
– Concentration: ±2.0% (error can be less than 0.05% after calibration at common points);
– Temperature: ±0.5°C (0.0°C ≤ T ≤ 80.0°C);

6. Electronic Unit Repeatability Error: ±1.0%;

7. Electronic Unit Stability: ±1.0%/24h;

8. Current Isolation Output: 4–20 mA (load <750 Ω);

9. Output Current Error: ≤±1% FS;

10. Temperature Coefficient Compensation Range: (0–10.0)%/°C (adjustable);

11. Alarm Relay: AC220V, 3A;

12. RS485 Communication Interface (optional);

13. Power Supply: AC220V±22V, 50Hz±1Hz;

14. Waterproof and Dustproof Design: IP54 protection rating;

15. Clock Accuracy: ±1 minute/month;

16. Data Storage Capacity: 1 month (1 point/5 minutes);

17. Data Retention Without Power: 10 years;

18. Dimensions:
– Instrument: 146 (L) × 146 (W) × 150 (D) mm;
– Panel cutout size: 138 × 138 mm;

19. Weight: 1.0 kg;

20. Operating Conditions: Ambient temperature 0–60°C, relative humidity <85%.