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Industrial Online Meter
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Hangzhou Lohand Biological Technology Co.,Ltd
Zhejiang, China
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Product Name Industry online residual chlorine/pH controller
Measure range & Accuracy 0-14 (pH) ±0.02pH
Weight 0.9KG
Size 96x96x115mm
Hole size 91x91mm
Hypochloric acid 0-20ppm ±0.01mg/L
Power supply 220V AC 10%,50/60 Hzz
Residual chlorine 0-10ppm ±0.01mg/L
Resolution 0.01pH, 0.01mg/L(residual chlorine),0.001mg/L(HOCL)
Input Resistance ≥1x10 ¹²Ω
Temp Compensation Manual / Auto temperature compensation
Communication RS485, standard Modbus
Signal output 4-20mA output, Maximum loop 750Ω, 0.01%FS

Industrial wastewater 
Pure water
Circulating water 
Food wastewater treatment
Desulfurization pickling
Wastewater treatment
Glass carving process
Electroplating wastewater
Printing
Dyeing
Electronic semiconductor
Chemical
Pharmaceutical

1. The large LCD display, English menu operation. 
2. Multi-parameter display at the same time: the value of residual chlorine, pH, temperature, output current, alarm points, etc. Intuitive and easy to read, and alarm for range overrun. 
3. Screen displays alarm status and is accompanied by a switch ON / OFF signal output 
4. Automatic Temperature Compensation: Automatic 0℃ to 60℃ 
5. Communication function (optional): RS-485 communication interface(MODBUS protocol is partially compatible), 4 to 20 mA current output corresponding to the DO value can be set freely. 
6. Notepad: can store 50 measurements, and the user can record measurement data. 
7. Hysteresis amount can be set freely to avoid frequent switching relay action 
8. Watchdog function: to ensure that the instrument will not crash
9. Core devices from famous foreign brands 
10. Restore the factory settings. Power-down protection> 10 years

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