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| Brand | CLEAN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CS4751D |
| Instrument Type | Online |
| Measurement Principle | Electrochemical (Clark-type Polarographic Probe) |
| Range | 0.0–400.0% saturation, 0.00–40.00 mg/L |
| Accuracy | ±0.2% FS |
| Repeatability | 0.1% / 0.01 mg/L |
| Detection Limit | ±2 ppb (zero point) |
| Temperature Range (Operating) | 0–60 °C |
| Temperature Measurement Range | −10.0–110.0 °C |
| Temp. Resolution | 0.1 °C |
| Salinity Compensation | 0.0–50.0 ppt |
| Pressure Compensation | 600–2000 mbar |
| Response Time (t₉₅) | <60 s at 25 °C |
| Stabilization Time | 15–20 min |
| Zero Drift | <0.5% FS |
| Housing Material | PPS/PP |
| Electrode Cap Thread | NPT 3/4″ |
| Cable Length | 5 m |
| Connector | Open-terminal block |
| Communication Interface | RS-485 |
| Protocol | Modbus RTU |
| Power Supply | DC 12 V |
| Output Signals | DO concentration (mg/L and % sat), temperature |
| IP Rating | IP68 |
| Minimum Flow Rate | >0.03 m/s |
| Residual Current | <2% in air |
| Brand | CLEAN |
|---|---|
| Origin | USA |
| Model | DO30 |
| Instrument Type | Portable |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| Measurement Range | 0.00–40.00 mg/L (ppm) and 0.0–200.0% saturation |
| Accuracy | ±2% of full scale |
| Resolution | 0.01 mg/L, 0.1% saturation |
| Temperature Range | 0–100.0 °C (32–212 °F) |
| Temperature Compensation | Automatic (0–60 °C) |
| Salinity Compensation | 0.0–40.0 ppt |
| Atmospheric Pressure Compensation | 600–1100 mbar |
| Calibration | 1- or 2-point (zero-oxygen solution or air-saturated water) |
| Display | Multi-line LCD (21 × 34 mm), backlight enabled |
| IP Rating | IP67 |
| Power | 1 × 1.5 V AAA battery |
| Dimensions (H×W×D) | 185 × 40 × 48 mm |
| Weight | 95 g |
| Auto-off | 5 minutes of inactivity |
| Electrode Replaceability | User-serviceable galvanic probe with replaceable membrane cap (CS49303H1L) |
| Brand | CLEAN |
|---|---|
| Origin | USA |
| Model | DO200 |
| Instrument Type | Portable |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| DO Range | 0.00–40.00 mg/L |
| Saturation Range | 0.0–400.0% |
| DO Resolution | 0.01 mg/L |
| Saturation Resolution | 0.1% |
| DO Accuracy | ±0.2% F.S. |
| Temperature Range | 0.0–50.0 °C |
| Temperature Accuracy | ±0.2 °C |
| Temperature Resolution | 0.1 °C |
| Atmospheric Pressure Setting | 600–1400 mbar (1 mbar step) |
| Salinity Setting | 0.0–40.0 g/L (0.1 g/L step) |
| Data Storage | 50 sets |
| IP Rating | IP67 |
| Dimensions | 94 × 190 × 35 mm (W × L × H) |
| Power | 2 × AAA batteries (>500 hrs operation) |
| Operating Environment | −5 to 60 °C, <90% RH |
| Brand | CLEAN |
|---|---|
| Origin | USA |
| Model | DO500 |
| Instrument Type | Laboratory Benchtop |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| Measurement Range (DO) | 0.00–40.00 mg/L |
| Accuracy | ±0.2% F.S. |
| Repeatability | 0.1% |
| Detection Limit | 0 mg/L |
| Saturation Range | 0.0–400.0% |
| Temperature Compensation Range | 0.0–50.0 °C |
| Temp. Accuracy | ±0.2 °C |
| Atmospheric Pressure Setting | 600–1400 mbar (1 mbar resolution) |
| Salinity Compensation | 0.0–40.0 g/L (0.1 g/L resolution) |
| Data Storage | 50 sets |
| Dimensions | 140 × 210 × 35 mm (W × L × H) |
| Weight | 650 g |
| Operating Environment | –5 to 60 °C, <90% RH |
| Brand | CLEAN (USA) |
|---|---|
| Origin | USA |
| Model | DO5000 |
| Instrument Type | Online DO Controller |
| Measurement Principle | Polarographic Electrochemical Probe |
| Measurement Range | 0.0–400.0 % saturation, 0.00–40.00 mg/L |
| Accuracy | ±0.1 % FS, ±0.01 mg/L |
| Repeatability | ±0.2 % FS |
| Detection Limit | 0.0–40.0 ppt |
| Display | 128×64 dot-matrix LCD (English/Chinese switchable) |
| IP Rating | IP65 |
| Output | Dual isolated 4–20 mA (configurable), RS-485 with opto-isolation |
| Communication Protocol | MODBUS RTU |
| Relay Outputs | 2 × SPST control relays (2.5 A / 230 VAC), 1 × user-configurable function relay (e.g., cleaning or alarm) |
| Temperature Compensation | Automatic/manual (with TH22k sensor input) |
| Pressure & Salinity Compensation | Manual |
| Power Supply | 85–260 VAC or 24 VDC (user-selectable) |
| Operating Temp. | 0–60 °C |
| Humidity | <90 % RH (non-condensing) |
| Mounting | Panel-mount |
| Dimensions (H×W×D) | 108×108×128 mm |
| Cutout | 92.5×92.5 mm (positive tolerance) |
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