DDG-3080B online Conductivity Temperature Analyzer Meter
Features:
Intelligent: This Industrial Conductivity meter adopts high precision AD conversion and single chip microcomputer processing technologies and can be used for the measurement of the conductivity values and temperature, automatic temperature compensation and self-checking.
High Reliability: All the components are arranged on one circuit board. No complicated functional switch, adjusting knob or potentiometer arranged on this instrument.
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.
Water proof and dust-proof design:Its protection grade is IP65. It is applicable for outdoor use.
25ºC Conversion: The conductivity value measured at the current temperature is converted to that at 25ºC;thus, this conductivity meter always displays the conductivity value at 25ºC. Therefore, this meter is especially suitable for testing the various water solutions in power plants.
Automatic range switching: The measuring ranges can automatically switch within the measuring range of the electrode.
Communication interface: RS485, It can be easily connected to a computer to perform monitoring and communication
Phase sensitive detection: Eliminating the influence of conductors on the measurement of conductivity
Technical Indexes
1. Standard: JB/T 6855-93 <<Industrial conductivity meter >>
2. Measuring range: 0.01~200μS/cm (k=0.01)
0.1~2000μS/cm (k=0.1)
1.0~20 mS/cm (k=1.0)
10~200 mS/cm (k=10.0)
3. Intrinsic error of the electronic unit: conductivity: ±0.5%FS, temperature: ±0.2ºC
4. Range of automatic temperature compensation: 0~200.0ºC, with 25ºC as the reference
temperature
5. Water sample tested: 0~200.0ºC, 1.6MPa
6. Intrinsic error of the instrument: conductivity: ±1.0%FS, temperature: ±0.5ºC
7. Automatic temperature compensation error of the electronic unit: ±0.5%FS
8. Repeatability error of the electronic unit: ±0.2%FS±1 Unit
9. Stability of the electronic unit: ±0.2%FS±1 unit/24h
10. Isolated current output: 0~10mA ( load<1.5kΩ)
4~20mA (load<750Ω)
11. Output current error: ≤±l%FS
12. Error of electronic unit caused by ambient temperature: ≤±0.5%FS
13. Error of the electronic unit caused by the supply voltage: ≤±0.3%FS
14. Alarm relay: AC 220V, 3A
15. Communication interface: RS485
16. Power supply: AC 220V±22V, 50Hz±1Hz
17. Protection grade: IP65
18. Clock accuracy: ±1 minute/month
19. Data storage capacity: l month (1 point/5 minutes)
20. Saving time of data under a continuous power-failure condition: 10 years
21. Overall dimension: 220 (length) x 190 (width) x 130 (depth) mm
22. Weight: 1.0kg
23. Working conditions: ambient temperature: 0~60ºC; relative humidity <85%
24. The conductivity electrodes with the following five constants are usable: K= 0.01, 0.1, 1.0 and 10.0
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