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| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-208 |
| Instrument Type | Online DO Monitor |
| Measurement Range | (0.0–20.0) mg/L DO, (0.0–200.0)% saturation |
| Temperature Range | (−10.0–120.0) °C |
| Resolution | 0.01 mg/L (DO), 0.1% (saturation), 0.1 °C (temp) |
| Repeatability | ≤0.20 mg/L |
| Basic Error (Instrument) | ±0.50 mg/L (DO), ±10.0% (saturation), ±1.0 °C (temp) |
| Basic Error (Electronics Unit) | ±0.20 mg/L (DO), ±5.0% (saturation), ±0.3 °C ±1 digit |
| Stability | (±0.20 mg/L)/24 h (instrument), (±0.10 mg/L)/24 h (electronics) |
| T90 Response Time | ≤2 min at 20 °C |
| Output | Isolated 4–20 mA DC (configurable upper/lower limits), RS-232 or RS-485 (user-selectable) |
| Relay Outputs | 4 programmable control relays |
| Data Storage | 400 measurement records |
| Calibration | Zero-oxygen and full-scale calibration supported |
| Enclosure Rating | IP65 |
| Power Supply | AC (220 ± 22) V, (50 ± 0.5) Hz |
| Dimensions | 144 × 144 × 160 mm |
| Weight | 2.5 kg |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Model | JPBJ-608 |
| Instrument Type | Portable |
| Measurement Principle | Polarographic Electrochemical Probe |
| DO Range | (0.00–50.00) mg/L |
| Accuracy | ±0.30 mg/L for values ≤20.00 mg/L |
| Resolution | 0.01 mg/L (DO), 0.1 °C/°F (temperature), 0.1% (saturation) |
| Response Time | ≤45 s (90% response at 20.0 °C) |
| Temperature Compensation | Automatic, with manual salinity compensation |
| Atmospheric Pressure Compensation | kPa, mmHg, atm selectable |
| IP Rating | IP65 |
| Data Storage | 500 sets |
| Power | Rechargeable Li-ion battery, USB-C charging support (DC5V input) |
| Dimensions | 80 × 225 × 35 mm |
| Weight | 0.4 kg |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | JPBJ-609L |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Probe — Clark-type Polarographic |
| Measurement Range | (0.00–50.00) mg/L |
| Accuracy | ±0.10 mg/L (0.00–50.00 mg/L) |
| Resolution | 0.01 mg/L |
| Response Time | ≤45 s (90% response at 20 °C) |
| Temperature Compensation | Automatic/Manual (−10.0 to 135.0 °C) |
| Atmospheric Pressure Compensation | kPa, mbar, Torr, atm (manual/automatic) |
| Salinity Compensation | Manual (0–50 g/L) |
| DO Saturation Range | (0.0–600.0) % |
| IP Rating | IP65 |
| Power | Rechargeable Li-ion battery (USB-C input, DC5V adapter compatible) |
| Dimensions | 90 × 255 × 40 mm |
| Weight | 0.5 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | JPSJ-605F |
| Instrument Type | Portable |
| Measurement Principle | Polarographic Electrochemical Probe |
| Dissolved Oxygen Range | (0.00–50.00) mg/L |
| Accuracy | ±0.30 mg/L (≤20.00 mg/L) |
| Repeatability | 0.15 mg/L |
| Detection Limit | 0.01 mg/L |
| Temperature Compensation | Automatic (–10.0 to 135.0 °C) |
| Atmospheric Pressure Compensation | kPa, mmHg, atm |
| Response Time | ≤45 s (90% response at 20.0 °C) |
| Salt Compensation | Manual |
| IP Rating | IP54 |
| Data Storage | 500 sets |
| Interface | RS-232, USB |
| Compliance | GLP-compliant data logging |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | JPSJ-606L |
| Instrument Type | Benchtop Laboratory Meter |
| Measurement Principle | Electrochemical Polarographic Probe |
| DO Range | (0.00–90.00) mg/L |
| Accuracy | ±0.10 mg/L (electronic unit), ±0.30 mg/L (full system) |
| Repeatability | ≤0.15 mg/L |
| Detection Limit | ±0.10 mg/L at zero |
| DO Saturation Range | (0.0–600.0) % |
| Saturation Accuracy | ±2.0 % |
| Temperature Range | (−5.0–130.0) °C |
| Temp. Accuracy | ±0.1 °C |
| Temp. Resolution | 0.1 °C |
| DO Resolution | 0.01 mg/L |
| Saturation Resolution | 0.1 % |
| Atmospheric Pressure Compensation | (60.0–110.0) kPa |
| Salinity Compensation | (0.0–50.0) g/L |
| Power Supply | 24 VDC, 3 A (AC Input: 100–240 VAC, 1.35 A) |
| Dimensions | 280 × 280 × 130 mm |
| Weight | 2.5 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | JPBJ-610L |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching |
| Dissolved Oxygen Range | 0.00–20.00 mg/L |
| Accuracy | ±0.30 mg/L (full-scale error) |
| Resolution | 0.01 mg/L |
| Repeatability | 0.15 mg/L |
| Response Time | ≤60 s (90% response at 20 °C) |
| DO Saturation Range | 0.0–200.0 % |
| Temperature Range | 0.0–50.0 °C |
| Temp. Accuracy | ±0.3 °C |
| Salt Compensation Range | 0.0–50.0 g/L |
| Atmospheric Pressure Compensation | 50.0–110.0 kPa |
| IP Rating | IP65 |
| Power | Rechargeable Li-ion battery (DC5V input compatible) |
| Dimensions | 90 × 255 × 40 mm |
| Weight | 0.5 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-209 |
| Instrument Type | Online |
| Measurement Range | (0.0–20.0) mg/L DO |
| Repeatability | ≤ 0.20 mg/L |
| Resolution | 0.01 mg/L (DO), 0.1% (saturation), 0.1°C (temperature) |
| Basic Accuracy | ±0.30 mg/L (DO), ±10.0% (saturation), ±0.2°C (temperature) |
| Stability | ±0.20 mg/L / 24 h |
| Output | Isolated 4–20 mA DC (max. load 600 Ω), RS-485 digital interface |
| Alarm & Control | Dual limit relays (220 V AC, 2.5 A), one programmable cleaning relay |
| Data Storage | 2000 records with timestamp |
| Enclosure Rating | IP65 |
| Dimensions | 166 × 166 × 110 mm |
| Weight | 2.5 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | JPBJ-611Y |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching |
| Measurement Range | (0.00–20.00) mg/L DO |
| Accuracy | ±0.30 mg/L |
| Resolution | 0.01 mg/L (DO), 0.1% (Saturation), 0.1 °C (Temperature) |
| Temperature Range | 0.0–50.0 °C |
| Atmospheric Pressure Compensation | Automatic (50.0–110.0 kPa) |
| Salinity Compensation | Manual (0.0–50.0 g/L) |
| Data Storage Capacity | 1000 records with GPS, timestamp, operator ID, section ID, and calibration metadata |
| Power Supply | Rechargeable Li-ion battery |
| Dimensions | 235 × 90 × 56 mm |
| Weight | ~0.3 kg |
| Standard Electrode | DO-962 fluorescence-based DO sensor |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-9435B |
| Instrument Type | Online Analyzer |
| Measurement Range | (0–19.9) µg/L, (20–199) µg/L, (0.20–20.00) mg/L |
| Repeatability | ±3% FS |
| Resolution | 0.1 µg/L / 1 µg/L / 0.01 mg/L (DO) |
| Basic Error (Electronic Unit) | ±3% FS (DO), ±0.3 °C (Temperature) |
| Response Time (t₉₀) | 2 min at 25 °C |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 160 × 160 × 110 mm |
| Weight | 2 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | JPB-607A |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based (Optical) |
| Dissolved Oxygen Range | 0.00–20.00 mg/L |
| Resolution | 0.01 mg/L |
| Accuracy (DO) | ±0.30 mg/L |
| Saturation Range | 0.0–200.0 % |
| Saturation Accuracy | ±10.0 % |
| Temperature Range | −5.0 to 110.0 °C |
| Temperature Accuracy | ±0.4 °C (0.0–60.0 °C), ±1.0 °C (elsewhere) |
| Response Time (90%) | ≤45 s at 20.0 °C |
| Salt Compensation Error | ±2% |
| IP Rating | IP65 |
| Data Storage Capacity | 200 sets |
| Power Supply | Rechargeable Li-ion battery |
| Dimensions | 80 × 225 × 35 mm |
| Weight | 0.4 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | JPSJ-606T |
| Instrument Type | Benchtop Laboratory Meter |
| Measurement Principle | Polarographic Electrochemical Probe |
| DO Range (Electronic Unit) | 0.00–99.99 mg/L |
| Accuracy | ±0.10 mg/L (0.00–50.00 mg/L) |
| Instrument Accuracy | ±0.30 mg/L (≤20.00 mg/L) |
| Repeatability | ±2.0% |
| Response Time | ≤45 s (90% response at 20.0 °C) |
| Temperature Range | −10.0–135.0 °C |
| Temp. Accuracy | ±0.3 °C (0.0–60.0 °C) |
| Saturation Range | 0.0–600.0 % |
| Salt Compensation | Manual |
| Atmospheric Pressure Compensation | Auto/Manual (kPa, mbar, Torr, atm) |
| Data Storage Capacity | 1000 datasets |
| Compliance | GLP-compliant |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-203A |
| Instrument Type | Online |
| Measurement Range | (0.0–20.00) mg/L DO, (0.0–200.0)% saturation |
| Repeatability | ≤0.20 mg/L |
| Resolution | 0.01 mg/L (DO), 0.1% (saturation), 0.1°C (temperature) |
| Basic Error | ±0.5 mg/L (DO), ±10.0% (saturation), ±1.0°C (temperature) |
| Stability | (±0.30 mg/L)/24 h |
| Response Time (90%) | ≤45 s at 20°C |
| Temperature Range | −10.0–120.0°C |
| Salinity Compensation Range | (0.0–50.0) g/L |
| Salinity Compensation Error | ≤±3% |
| Output | (4–20) mA DC isolated, RS-232 digital interface |
| Power Supply | AC (220 ± 22) V, (50 ± 1) Hz |
| Enclosure Rating | IP65 |
| Dimensions & Weight | 160 × 160 × 110 mm, 1 kg |
| Data Storage | 200 groups with configurable logging interval |
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