Brand：Erun
Name：Water quality online monitor
Model：ERUN-SZ3-1
Parameters: customized
ERUN-SZ3-1 water quality monitor produced by Erun Environmental Protection, supports parameter customization, 7-inch color touch screen, the application is based on Linux open source system. Support USB, TF card, program upgrade, data reading is convenient, data storage can be expanded. Automatic range switching,Automatically switch the test results over the range to the high range dilution and then measure.
| Parameter | Manganese (Mn) | Total Chromium (Cr) | Aluminum (Al) | Silver (Ag) | Cobalt (Co) | Tungsten(Tw) | Molybdenum (Mo) | Lead (Pb) |
| Model | ERUN-SZ3-G5 | ERUN-SZ3-G4 | ERUN-SZ3-G3 | ERUN-SZ3-G2 | ERUN-SZ3-F9 | ERUN-SZ3-F8 | EERUN-SZ3-F7 | ERUN-SZ3-F3 |
| Detection method | formaldehyde oxime | diphenylcarbonyldihydrazide | chromium azure S | 3,5-Br2-PADAP | 5-Cl-PADAB | thiocyanates | xylenol orange | |
Measuring range (can be customized) | (0～2/5/10) mg/L | (0～1/2/5) mg/L | (0～0.5/2/5) mg/L | (0～5/10/20) mg/L | (0～1/2/5) mg/L | |||
| Tolerance | ±5% | ±10% | ||||||
| Lower limit of quantification | ≤0.05mg/L | ≤0.02mg/L | ≤0.05mg/L | ≤0.1 mg/L | ≤0.05 mg/L | |||
| Repeatability | ≤3% | |||||||
| Zero drift | ≤3% | |||||||
| Range drift | ≤3% | |||||||
| Minimum maintenance cycle | ≥168 h/time | |||||||
| Digital communication | RS232, RS485, RJ45 | |||||||
| Analog communication | (4~20) mA input; (4~20) mA output | |||||||
| Ambient temperature | (5~40)°C | |||||||
| Instrument size | 300mm×420mm×240mm(W×H×D)(main unit) | |||||||
| Instrument weight | ＜15 Kg | |||||||
1. Small reagent consumption: the total reagent consumption of single measurement is less than 2mL, low maintenance cost.
2. Separation of waste liquid and waste water: the amount of waste liquid is less than 10mL and the amount of waste water is less than 15mL in a single measurement.
3. Plunger pump dosing: no contact with reagents, samples, waste liquid and waste water, reliable and durable.
4. Dual optical path detection: real-time calculation of absorbance, eliminating the external environment on the optical system interference.
5. Shortage of liquid detection alarm: automatically identify water samples with insufficient reagent supply to avoid measurement without reagents.
6. Turbidity automatic compensation: based on the turbidity of the water body automatic compensation, reduce the interference of the measurement.
7. Key parameter uploading: Based on the protocol requirements, key parameters are automatically uploaded to assist judgment.
8. Support IPv4 network: compatible with IPv6 network, meet the TCP/IP protocol communication requirements.
