1. Measuring range: concentration: (0.00~10.00)% HCL; (0.00~10.00)% NaOH,

   (0.00~30.00)%H2SO4; (0.00~10.00)%NaCL(Customized for high concentration);

   (0.00~10.00)% HNO3; (Option) temperature: 0~99.9°C

2. Intrinsic error of electronic units: concentration: ±1.0%; temperature: ±0.3°C

3. Range of automatic temperature compensation: 0~99.9°C

4. Solution tested: 0~99.9°C, 0.6MPa

5. Intrinsic error of the instrument: concentration: ±2.0%(the error may be less than 0.05% after usual point calibration.)

Temperature: ±0.5°C (0.0°C≤T≤80.0°C)

6. Repeatability error of the electronic unit: ±1.0%

7. Stability of the electronic unit: ±1.0%/24h

8. Isolated current output: 4~20 mA(load <750Ω)

9. Output current error: ≤±1%FS

10. Compensation range of the temperature coefficient: (0-10.0)% /°C (adjustable)

11. Alarm relay: AC 220V, 3A

12. Communication interface: RS485

13. Power supply: AC220V±22V, 50Hz±1HZ, 24VDC(option)

14. Protection grade: IP54, Aluminium shell for outdoor use.

15. Clock accuracy: ±1 minute/month

16. Data storage capacity: l month (1 point/5 minutes)

17. Saving time of data under a continuous power-failure condition: 10 years

18. Overall dimension: 146 (length) x 146 (width) x 150 (depth) mm; dimension of the hole: 138 x 138mm

19. Working conditions: ambient temperature: 0-60°C; relative humidity <85%

20. Weight: 1.5kg