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| After-sales Service: | Following Updating |
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| Warranty: | Under Discussion |
| Weight: | 3kg |
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| 1 With automatic recognition of intelligent sensor ability. |
| 2 Touch screen display, Chinese operation interface, easy to operate. |
| 3 With RS-485 digital and 4~20mA analog output interface, also has USB data export interface. |
| 4 With upper and lower limit alarm function. |
| 5 There are 4 switching control interfaces. |
| 6 With power failure protection function. |
| 7 Automatic saving of measurement results, massive historical data saving. Tabular data query, fast and easy. |
| 8 Optional flow cell. |
| Model | SJG-740 | |
| Channel | multichannel | |
| PH | Measurement Range | (0.00~14.00)pH |
| Resolution | 0.01pH | |
| Instrument basic error | ±0.05pH±1 character | |
| Instrument Stability | ±0.1pH/24h | |
| Repeatability | Not more than 0.02pH | |
| Conductivity | Measurement range | 0.000 μS/cm to 199.9 mS/cm |
| Resolution | 0.001 μS/cm | |
| Instrument basic error | ±2.0% (FS) | |
| Instrument Stability | ±1.0%(FS)/24h | |
| Instrument Repeatability | Not more than 1.0%(FS) | |
| Turbidity | Measuring Range | 0.00~1000.0NTU |
| Resolution | 0.01NTU | |
| Instrument basic error | ±10% | |
| Repeatability | 2% of the total | |
| Zero Drift | ±1.5%(FS)/30min; ±3%(FS)/24h | |
| Range Drift | ±5%(FS)/24h | |
| Dissolved Oxygen | Measurement range | Dissolved oxygen concentration: (0.00~20.00)mg/L; Dissolved oxygen saturation: (0.0~200.0)% |
| Resolution | 0.01mg/L;0.1% | |
| Zero value error | Not more than 0.10mg/L | |
| Response time | Not more than 60s (test temperature is 20ºC, 90% response) | |
| Instrument basic error | Dissolved oxygen concentration: 0.30mg/L Dissolved oxygen saturation:10.0% (The difference between the temperature of the calibration water sample and the measured water temperature should not exceed 15.0ºC) |
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| Instrument stability | (±0.20 mg/L)/24h | |
| Repeatability | 0.15 mg/L | |
| Temperature | Measuring range | (0.0~60.0)°C |
| Resolution | 0.1ºC | |
| Instrument basic error | ±0.5ºC±1 character | |
| Power supply | AC: (220±22)V; (50±1)Hz | |
| Dimensions (mm) | 285×205×97 | |
| Weight | 3kg | |
| Matching Sensor | FG-930 online pH digital sensor DJG-940 Online Conductivity Digital Sensor DOG-970 Online Dissolved Oxygen Digital Sensor TGF-1000W Turbidity Sensor |
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