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Sjg-791 Type Online Residual Chlorine Monitor1
Electronic InstrumentMulti-Channel General Purpose MeterWater Quality Analyzer
Bengbu Sun-moon Instrument Institute Co., Ltd.
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Product Description Product Features:Temperature, pH, conductivity, dissolved oxygen and turbidity can be tested simultaneously. 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. Product Parameter: Model SJG-791Measuring rangeResidual chlorine(0.00~20.00)mg/L pH(0.00~14.00)pH Temperature(0.0~60.0)°CResolutionResidual Chlorine0.01mg/L pH0.01pH temperature0.1oCInstrument basic errorResidual chlorine±10% (≥0.5mg/L); or ±0.05mg/L (<0.5mg/L) pH±0.05pH Temperature±0.5oCInstrument Linearity ErrorResidual Chlorine±3.0%FSBasic error of electronic unitResidual Chlorine±4% (≥0.5mg/L) or ±0.02mg/L (<0.5mg/L) pH±0.01pH Temperature±0.3°CElectronic Unit StabilityResidual Chlorine ±1%FS/24h90% Response Time 2minInstrument protection grade IP65Power supply AC (220±22)V, (50±1)Hz; or DC 24VSensor cable length (m) 3Dimensions (mm), Weight (kg) 166×166×110, 2Opening size (mm) 138×138Inlet flow rate 0.4L/minMatching (Optional) Accessories Flow cell (Inlet and outlet port size: 3/8" quick-connect)
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