YANTAI STARK INSTRUMENT CO., LTD.

Fully intelligent: It adopts high-precision AD conversion and single chip microcomputer processing technologies

and can be used for conductivity and temperature measurement, automatic temperature compensation, automatic

range switching, self-checking, etc.

Multi-parameter display: The conductivity and temperature values can be displayed on the same screen at the

same time. It adopts LED display module with high brightness. the displayed values can be seen from   

a long distance away.

Strong interference immunity: Its current output adopts optoelectronic isolating technology. This meter has strong interference immunity and the capacity of long-distance transmission as well as excellent electromagnetic

compatibility.

25℃ Conversion: The conductivity value measured at the current temperature is converted to that at 25℃;

thus, this conductivity meter always displays the conductivity value at 25℃. Therefore, this meter is especially

suitable for testing the various water solutions in power plants.

1. Standard: JB/T6855-93 《Industrial Conductivity Meter》

2. Conductivity measuring range: 0.01～20µS/cm    (Electrode: K=0.01)

                                                     0.1～200µS/ cm   (Electrode: K=0.1)

                                                     1.0～2000µS/ cm  (Electrode: K=1.0)

                                                     10～20000µS/ cm (Electrode: K=10.0)

3. Accuracy: conductivity: ±1.0%F.S.; temperature: ±0.5℃

4. Intrinsic error of electronic units: conductivity: ±0.5%F.S., temperature: ±0 3℃(0～60℃)

5. Range for automatic temperature compensation: 0～80℃, with 25℃ as the reference temperature

6. Water sample tested: 0～80℃, 0.6Mpa

7. Intrinsic error of the instrument: conductivity: ±1.0%F.S., temperature: ±0.5℃(0～60℃)

8. Automatic temperature compensation error of the electronic unit: ±0.5%F.S.

9. Repeatability error of the electronic units: ±0.2%F.S.±1 unit

10. Stability of the electronic unit: ±0.2%±l unit F.S./24h

11. Alarm error of the electronic unit: ≤±3.0%F.S.

12. Error of electronic unit caused by ambient temperature: ≤±0.5%F.S.

13. Error of the electronic unit caused by the supply voltage: ≤±0.3%F.S.

14. Isolated current output: 4~20mA (load<750kΩ)

15. Output current error of the electronic units: ≤±1.0%F.S.

16. Alarm relay: AC220V, 3A

17. Communication interface: RS485 (optional)

18. Power supply: AC 220V±22V, 50Hz±1Hz, DC24V(optional)

19. Protection grade: IP65

20. Overall dimension: 146 (length) x 146 (width) x 108 (depth) mm; dimension of the hole: 138*138mm

21. Weight: 0.6kg

22. Working conditions: ambient temperature: 0~60℃; relative humidity <85%

23. The connection tubes for inlet and outlet water: Hard pipe or soft pipe.