After-sales Service: | Following Updating |
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Warranty: | Under Discussion |
Weight: | 2kg |
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1.Adopting large dot-matrix LCD, it can display residual chlorine, pH and temperature values at the same time; |
2. Support automatic pH compensation and automatic temperature compensation for residual chlorine; |
3. Support automatic saving of measurement results, up to 2000 groups of data can be saved; |
4.Support to set alarm upper and lower limits and return difference for residual chlorine or pH measurement values; |
5.Supports power failure protection function; |
6.With two (4~20) mA DC isolated signal outputs, corresponding to the data output of residual chlorine or pH measurement value, the output lower limit and output upper limit can be set arbitrarily; |
7.With RS-232 or RS-485 digital interface (2 choose 1), Modbus communication protocol. |
Model | SJG-791 | |
Measuring range | Residual chlorine | (0.00~20.00)mg/L |
pH | (0.00~14.00)pH | |
Temperature | (0.0~60.0)°C | |
Resolution | Residual Chlorine | 0.01mg/L |
pH | 0.01pH | |
temperature | 0.1ºC | |
Instrument basic error | Residual chlorine | ±10% (≥0.5mg/L); or ±0.05mg/L (<0.5mg/L) |
pH | ±0.05pH | |
Temperature | ±0.5ºC | |
Instrument Linearity Error | Residual Chlorine | ±3.0%FS |
Basic error of electronic unit | Residual Chlorine | ±4% (≥0.5mg/L) or ±0.02mg/L (<0.5mg/L) |
pH | ±0.01pH | |
Temperature | ±0.3°C | |
Electronic Unit Stability | Residual Chlorine | ±1%FS/24h |
90% Response Time | 2min | |
Instrument protection grade | IP65 | |
Power supply | AC (220±22)V, (50±1)Hz; or DC 24V | |
Sensor cable length (m) | 3 | |
Dimensions (mm), Weight (kg) | 166×166×110, 2 | |
Opening size (mm) | 138×138 | |
Inlet flow rate | 0.4L/min | |
Matching (Optional) Accessories | Flow cell (Inlet and outlet port size: 3/8" quick-connect) |