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  The on-line monitor of heat exchanger the WGRZ—3 Type   
   The on-line monitor of heat exchanger is a new product that based on on-line monitor of fouling of thermal resistance. It not only keeps accurate test, the credibile function of the original product, but also increased many new functions, which makes this new product since can satisfy the measure and control request of the spot monitor of heat exchanger, also can suit the supervision demand of heat exchanger on the spot, and communicate with computer on the net .It is a good essential assistant that carries out the industry circulation water to monitor in modern management (the patent number 200430058415.1) ` RETURN
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Main detections and functions:
one) Main performance index :
1. the ± 0.3% indication error of fouling of thermal resistance.
2. the range of measured temperature 0-100 ℃ ,0-200 ℃
3. resolution factor of measured temperature±0.1 ℃
4. precision of controlled temperature 1%(or flow)
5. the working temperature 0~40℃ relative humidity 20%~80%
6. the working electric voltage 220V 10℅ 50Hz
7. the power consume below 15 tiles
8. the volume : 320×133×220 square millimeters
9. the weight of instrument:8,000 kg

Two) main functions:
1. the LCD display various parameter of heat exchanger ,include inlet and outlet temperature, steam temperature, flow, the monitor time, the instantaneous value and maximal value of fouling thermal resistance
2. the LCD display various curves of fouling thermal resistance
3 control the steam or flow
4. measure for 90 days continuously, don’t worry about power-off.
5. realize real-time communication with computer , the datas and curves are printed by the computer.
6. display various alarm
7. transfer signals of the PH and conductivity



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