DDG-2090 Industrial Online Water Wewage Conductivity Meter with 4-20mA and RS485 modbus RTU

DDG-2090 Industrial Online Water Wewage Conductivity Meter with 4-20mA and RS485 modbus RTU

DDG-2090 Industrial online Conductivity Meter is developed on the basis of guaranteeing the performance and the functions. The clear display, simple operation and high measuring performance provide it with high cost performance. It can be widely used for continuous monitoring of conductivity of water and solution in thermal power plants, chemical fertilizer, metallurgy, environmental protection, pharmacy, biochemical engineering, foodstuff, running water and many other industries.  


Features
DDG-2090 series of microcomputer-based industrial control instruments are precision meters for measurement
of conductivity or resistivity of solution. With complete functions, stable performance, simple operation and
other advantages, they are optimal instruments for industrial measurement and control.
The advantages of this instrument include: LCD display with back light and display of errors; automatic
temperature compensation; isolated 4~20mA current output; dual relay control; adjustable delay; alarming with
upper and lower thresholds; power-down memory and over ten years of data storage without backup battery.
According to the range of resistivity of the water sample measured, the electrode with a constant k = 0.01, 0.1,
1.0 or 10 can be used by means of flow-through, immerged, flanged or pipe-based installation.


Technical Indexes

1.Measuring range:
0.1~200 uS/cm     (Electrode: K=0.1)
1.0~2000 us/cm    (Electrode: K=1.0)
10~20000 uS/cm   (Electrode: K=10.0)
0~19.99MΩ      (Electrode: K=0.01)
2. Resolution: 0.01 uS /cm, 0.01 MΩ
3. Precision: 0.02 uS /cm, 0.01 MΩ
4. Stability: ≤0.04 uS/cm 24h; ≤0.02 MΩ／24h
5. Standard solution: Any standard solution
6. Control range: 0~19.99mS/cm, 0~19.99KΩ
7. Temperature compensation: 0~60.0℃
8. Output signal: 4~20mA isolated protection output, Can double the current output.
9. Output control mode: ON/OFF relay output contacts (two sets)
10. Relay load: Max. 230V, 5A(AC); Min. l l5V, 10A(AC)
11. Current output load: Max. 500Ω
12. Working voltage: AC 220V ±l0％, 50Hz
13. Overall dimension: 96x96x110mm; dimension of the hole: 92x92mm
14. Working condition: ambient temperature: 5～45℃

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