Features
English Display, English Menu operation: Easy operation, English prompts during the whole operational procedure ,convenient and quick.
Intelligent: It adopts high-precision AD conversion and single chip microcomputer processing technologies and can be used for the measurement of the PH values and temperature, automatic temperature compensation and self-checking etc function.
Multi-parameter display: On the same screen, residual chlorine, temperature, pH value, output current, status and time are displayed.
Isolated current output: Optoelectronic isolating technology is adopted. This meter has strong interference immunity and the capacity of long-distance transmission.
High and low alarm function: High and low alarm isolated output, hysteresis can be adjusted.
| Measuring range | Residual chlorine: 0-20.00mg/L, |
| Resolution: 0.01mg/L | |
| HOCL: 0-10.00mg/L | |
| Resolution: 0.01mg/L | |
| pH value: 0 – 14.00pH | |
| Resolution: 0.01pH; | |
| Temperature: 0- 99.9 ℃ | |
| Resolution: 0.1 ℃ | |
| Accuracy | Residual chlorine: ± 2% or ± 0.035mg / L, take the bigger; |
| HOCL: ± 2% or ± 0.035mg / L, take the bigger; | |
| pH value: ± 0.05Ph | |
| Temperature: ± 0.5 ℃ (0 ~ 60.0 ℃); | |
| Sample temperature | 0 ~ 60.0 ℃, 0.6MPa; |
| Sample flow rate | 200 ~250 mL/1min Automatic and Adjustable |
| Minimum detection limit | 0.01mg / L |
| Isolated current output | 4～20 mA(load <750Ω) |
| High and low alarm relays | AC220V, 7A; hysteresis 0- 5.00mg / L, arbitrary regulation |
| RS485 communication interface (optional) |
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| It can be convenient to computer monitoring and communication |
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| The data storage capacity: 1 month (1 point/5 minutes) |
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| Power Supply: AC220V ± 22V, 50Hz ± 1Hz; DC24V (optional). |
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| Protection grade: IP65 |
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| Overall dimension: 146 (length) x 146 (width) x 108 (depth) mm; dimension of the hole: 138 x 138mm |
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| Note: The wall installation may be ok, please specify when ordering. |
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| Weight: Secondary Instrument: 0.8kg, flow cell with residual chlorine, pH electrode weight: 2.5kg; |
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| Working Conditions: ambient temperature: 0 ~ 60 ℃; relative humidity <85%; |
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| Adopt the flow-through installation, inlet and outlet diameter at Φ10. | |
Residual chlorine is the low level amount of chlorine remaining in the water after a certain period or contact time after its initial application. It constitutes an important safeguard against the risk of subsequent microbial contamination after treatment—a unique and significant benefit for public health.
Chlorine is a relatively cheap and readily available chemical that, when dissolved in clear water in sufficient quantities, will destroy most disease causing organisms without being a danger to people. The chlorine, however, is used up as organisms are destroyed. If enough chlorine is added, there will be some left in the water after all the organisms have been destroyed, this is called free chlorine. (Figure 1) Free chlorine will remain in the water until it is either lost to the outside world or used up destroying new contamination.
Therefore, if we test water and find that there is still some free chlorine left, it proves that most dangerous organisms in the water have been removed and it is safe to drink. We call this measuring the chlorine residual.
Measuring the chlorine residual in a water supply is a simple but important method of checking that the water that is being delivered is safe to drink
