Leici
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| Brand | LeiCi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Region Category | Domestic (China) |
| Model | BOD-573 |
| Price Range | USD 1,400 – 7,200 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Differential Pressure Method |
| Measurement Range | 0–4000 mg/L |
| Accuracy | Compliant with HJ 505–2009 and ISO 5815-1:2019 for BOD₅ determination (validated using glucose-glutamic acid standard solution, BOD₅ = 180–230 mg/L) |
| Sample Capacity | Up to 6 samples per run |
| Incubation Duration | Programmable from 1 to 30 days |
| Data Retention | 10 years of BOD₅ result records |
| Cultivation Vessel Volume | 580 mL |
| Temperature Control | 20 ± 1 °C |
| Power Supply | AC 110–220 V, 50/60 Hz |
| Rated Power | 10 W |
| Dimensions (W × D × H) | 272 × 185 × 75 mm |
| Net Weight | 2.4 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | BOD-573 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Pressure Differential Method |
| Measurement Range | 0–4000 mg/L |
| Accuracy | Complies with HJ 505–2009 for BOD₅ precision validation (glucose–glutamic acid standard solution: BOD₅ = 180–230 mg/L) |
| Sample Capacity | ≤6 samples per run |
| Incubation Duration | 1–30 days programmable |
| Data Storage | 10 years of BOD₅ result records |
| Cultivation Vessel Volume | 580 mL |
| Temperature Control | 20 ±1 °C |
| Power Supply | AC 110–220 V, 50/60 Hz |
| Rated Power | 10 W |
| Dimensions | 272 × 185 × 75 mm |
| Net Weight | 2.4 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | COD-571 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Dichromate Digestion Method (2-hour standard digestion per ISO 6060 / HJ 828–2017) |
| Wavelengths | 420 nm and 620 nm |
| Measurement Ranges | 0–150 mg/L (low-range), 0–1500 mg/L (high-range) |
| Accuracy | ±8% of reading |
| Repeatability | ≤3% RSD |
| Measurement Time | ~20 min post-digestion |
| Throughput | Batch analysis of multiple water samples |
| Absorbance Range | 0.000–2.000 Abs |
| Absorbance Accuracy | ±0.01 Abs or ±5% |
| Absorbance Repeatability | ≤0.005 Abs or 2% |
| Wavelength Accuracy | ±4 nm |
| Transmittance Error | ±2% |
| Transmittance Repeatability | ≤0.5% |
| Cuvette Compatibility | 10 mm square cuvettes and 16 mm round test tubes |
| Data Storage | 2000 measurement records with timestamp, sample ID, dilution factor, and calibration metadata |
| Connectivity | RS-232, USB-B, optional U disk export |
| Power Supply | AC 100–240 V input / DC 24 V output adapter |
| Dimensions | 302 × 205 × 122 mm |
| Weight | 1.33 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | COD-571 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Dichromate Digestion Method (2-hour reflux) |
| Wavelengths | 420 nm and 620 nm |
| Measurement Ranges | 0–150 mg/L (low-range), 0–1500 mg/L (high-range) |
| Accuracy | ±8% of reading |
| Repeatability | ≤3% RSD |
| Measurement Time | 20 min per sample (post-digestion) |
| Photometric Range | 0.000–2.000 Abs |
| Absorbance Accuracy | ±0.01 Abs or ±5% |
| Wavelength Accuracy | ±4 nm |
| Transmittance Error | ±2% |
| Photometric Repeatability | ≤0.005 Abs or 2% |
| Sample Throughput | Batch processing for multiple water samples |
| Cuvette Format | 10 mm square cuvettes and 16 mm round test tubes |
| Data Storage | 2000 measurement records |
| Connectivity | RS-232, USB, U-disk export |
| Power Supply | AC 100–240 V input / DC 24 V output |
| Dimensions (W×D×H) | 302 × 205 × 122 mm |
| Weight | 1.33 kg |
| Ingress Protection | IP65 |
| Compliance | GLP-compliant data traceability, audit-ready logging |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | COD-571 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Rapid Digestion Method (Closed-Tube, Dichromate Oxidation) |
| Measurement Range | 0–1500 mg/L COD |
| Accuracy | ±8% of reading ±1 mg/L (for 0–150 mg/L) |
| Repeatability | ≤3% RSD |
| Digestion Time | 0–120 min (programmable) |
| Batch Capacity | 21 samples per run |
| Digestion Temperature Range | 50–150 °C (control accuracy: ±5 °C below 150 °C) |
| Timing Accuracy | ±5 min at 120 min setting |
| Stability | ±2 mg/L drift over 15 min |
| Operating Environment | 5–40 °C, RH ≤85%, AC 220 V ±10%, 50 Hz ±1 Hz |
| Safety Features | Overtemperature alarm, auto-shutdown post-digestion |
| Data Output | Integrated thermal printer (PP40 type), direct COD concentration readout |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | COD-571-1 |
| Digestion Method | Reflux Digestion |
| Heating Module | Aluminum Alloy Block with PID Temperature Control |
| Batch Capacity | 21 Samples |
| Temperature Range | 100–165 °C |
| Time Setting Range | 0–120 min |
| Safety Features | Over-Temperature Alarm, Auto Power-Off upon Completion |
| Design | Compact Benchtop Unit with Sealed Reflux Assembly |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | COD-572 |
| Price Range | USD 700 – 1,400 (FOB Shanghai) |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Coulometric Titration (ASTM D1252–04, ISO 8467:1993 compliant) |
| COD Range | (0.0–100.0) mg/L (standard), extendable to (100.0–1000) mg/L via dilution or high-range mode |
| Accuracy | ±2 mg/L (absolute error at ≤100 mg/L) |
| Repeatability | RSD ≤ 2% |
| Power Supply | AC 220 V ±10%, 50 Hz ±1% |
| Dimensions (W×D×H) | 300 × 235 × 100 mm |
| Weight | 3.0 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | COD-572 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Coulometric Titration (ASTM D1252–04, ISO 8467) |
| COD Range | 0.0–100.0 mg/L (standard), extendable to 100.0–1000 mg/L |
| Accuracy | ±2 mg/L (absolute error, certified reference standards) |
| Repeatability | ≤2% RSD (n=6, mid-range calibration standard) |
| Electrolysis Current Options | 10 mA, 20 mA, 40 mA |
| Data Storage Capacity | 200 measurements each for permanganate (Mn) and dichromate (Cr) methods |
| Calibration Memory | 10 user-defined standard volume configurations per method |
| Power Supply | AC 220 V ±10%, 50 Hz ±1% |
| Dimensions (W×D×H) | 300 × 235 × 100 mm |
| Weight | 3.0 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | COD-580 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Oxidation (Hydroxyl Electrode Method) |
| Measurement Range | 10.0–1000 mg/L |
| Resolution | 0.1 mg/L |
| Accuracy | ±5% of Full Scale (FS) |
| Repeatability | ≤3% FS |
| Zero Drift | ±5 mg/L per 24 h |
| Span Drift | ±10% per 24 h |
| Power Supply | AC 220 V ±10%, 50 Hz ±1% |
| Dimensions (W×D×H) | 600 × 455 × 720 mm |
| Weight | 50 kg |
| Interface Options | RS-232 standard |
| Display | 7-inch color touchscreen with Chinese UI |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | COD-582 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Potassium Dichromate Digestion and Colorimetric Detection |
| Measurement Range | 10.0–5000 mg/L |
| Accuracy | ±10% or ±5 mg/L (for values ≤50 mg/L) |
| Repeatability | 5% or 5 mg/L (for values ≤100 mg/L) |
| Resolution | 0.1 mg/L (≤100 mg/L), 1 mg/L (>100 mg/L) |
| Zero Drift | ±5 mg/L/24 h |
| Span Drift | ±10%/24 h |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 550 × 400 × 1680 mm |
| Weight | 50 kg |
| MTBF | ≥360 hours |
| Output | Isolated 4–20 mA DC (configurable upper/lower limits) |
| Communication | RS-232 or RS-485 (selectable) |
| Maintenance Interval | Up to 30 days without servicing |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | COD-583 |
| Pricing | USD 12,300 (FOB Shanghai) |
| Measurement Principle | Potassium Permanganate Oxidation with ORP Endpoint Detection |
| Instrument Type | Online Continuous Analyzer |
| Repeatability | ≤ ±5% RSD |
| Accuracy | ±10% of reading (as per GB/T 11892–1989) |
| Power Failure Recovery | Yes |
| Remote Connectivity | Ethernet & Modbus TCP |
| Calibration Verification | Automated Zero & Span Check |
| Fluidic Architecture | Sequential Injection with Multi-Position Rotary Valve |
| Tubing Material | FEP (fluorinated ethylene propylene), ID ≥ 1.0 mm |
| Diagnostic Capability | Embedded Self-Diagnostic Routine |
| Maintenance Interval | ≥ 30 days under standard operation |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | COD-583 |
| Price | USD 16,500 (FOB Shanghai) |
| Measurement Principle | Potassium Permanganate Oxidation with ORP Endpoint Detection |
| Instrument Type | Online Analyzer |
| Repeatability | ≤ ±5% |
| Accuracy | ±10% of Full Scale (Actual Water Sample Comparison) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | DDB-301 |
| Measurement Parameter | Electrical Conductivity Only |
| Portability | Handheld |
| Intended Use Environment | Laboratory & Field Deployment |
| Minimum Resolution | 1 pS/m |
| Display | LCD with High-Contrast Backlight |
| Power Supply | Two 476A 6 V Alkaline Batteries |
| Operating Temperature | 0–40 °C |
| Relative Humidity | ≤85% RH |
| Dimensions | 85 × 220 × 50 mm |
| Weight | ~350 g |
| Explosion Protection | Ex ia IIA T5 Ga (Certified per GB 3836.1–2021 / IEC 60079-0:2017 and GB 3836.4–2021 / IEC 60079-11:2011) |
| Certified Explosion-Proof Certificate No. | GYB23.2384X |
| Included Accessories | DJSY-0.01 Fuel-Specific Conductivity Sensor, Silicone Protective Sleeve, Metallic Calibration Beaker |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDB-301 |
| Portability | Portable |
| Application Environment | Laboratory & Field |
| Measurement Parameter | Electrical Conductivity (Single-Parameter) |
| Resolution | 1 pS/m |
| Measurement Range | 0–1999 pS/m |
| Display | LCD |
| Power Supply | Two 476A 6V Alkaline Batteries |
| Operating Temperature | 0–40 °C |
| Relative Humidity | ≤85% RH |
| Dimensions | 85 × 220 × 50 mm |
| Weight | ~350 g |
| Explosion Protection | Ex ia IIA T5 Ga (Certificate No.: GYB23.2384X) |
| Standard Electrode | DJSY-0.01 Fuel Conductivity Cell |
| Accessories | Silicone Protective Sleeve, Metal Measuring Beaker |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic (China) |
| Model | DDB-303A |
| Price Range | USD 140–280 |
| Measured Parameter | Conductivity Only |
| Portability | Portable |
| Intended Use | Laboratory & Field |
| Conductivity Range | 0.00 μS/cm to 100 mS/cm |
| Accuracy | ±1.0% of Full Scale (FS) |
| Minimum Resolution | 0.01 μS/cm (auto-ranging) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DDB-303A |
| Price | USD 205 (FOB Shanghai) |
| Measurement Parameters | Conductivity only |
| Portability | Handheld |
| Intended Use | Field and Lab |
| Conductivity Range | 0.000 µS/cm to 100 mS/cm |
| Accuracy | ±1.0% FS |
| Minimum Resolution | 0.01 µS/cm (auto-ranging) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Origin | Domestic (China) |
| Model | DDB-305A |
| Price Range | USD 280–420 |
| Measured Parameters | Conductivity, TDS, Temperature |
| Portability | Handheld |
| Intended Use | Laboratory & Field |
| Conductivity Range | 0.00 µS/cm to 200 mS/cm |
| TDS Range | 0.00 mg/L to 100 g/L |
| Temperature Range | −5.0 to 110.0 °C (23.0 to 230.0 °F) |
| Accuracy | ±1.0% of Full Scale (FS) |
| Minimum Resolution | 0.01 µS/cm (auto-ranging), 0.01 mg/L (TDS), 0.1 °C/°F (temperature) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDB-305A |
| Portability | Portable |
| Intended Use | Laboratory |
| Conductivity Range | 0.00 μS/cm to 200 mS/cm |
| TDS Range | 0.00 mg/L to 100 g/L |
| Temperature Range | (−5.0 to 110.0) °C / (23.0 to 230.0) °F |
| Accuracy | ±1.0% FS |
| Minimum Resolution | 0.01 μS/cm (auto-ranging) |
| TDS Resolution | 0.01 mg/L (auto-ranging) |
| Temp. Resolution | 0.1 °C / 0.1 °F |
| Temp. Accuracy | ±0.2 °C |
| IP Rating | IP65 |
| Data Storage | 200 sets |
| Power | Rechargeable Li-ion battery, DC5V adapter input (AC100–240V) |
| Dimensions | 80 × 225 × 35 mm |
| Weight | 0.4 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic (China) |
| Model | DDBJ-350 |
| Price Range | USD 280–420 |
| Measured Parameters | Conductivity (single-parameter) |
| Portability | Portable |
| Intended Use | Laboratory & Field |
| Conductivity Range | 0.000 µS/cm to 500 mS/cm |
| TDS Range | 0.00 mg/L to 300 g/L |
| Resistivity Range | 5.00 Ω·cm to 20.00 MΩ·cm |
| Salinity Range | 0.00–8.00 % |
| Temperature Range | −5.0 to 110.0 °C (23.0–230.0 °F) |
| Accuracy | ±1.0 % FS (conductivity, TDS, resistivity), ±0.2 % FS (salinity), ±0.2 °C (temperature) |
| Minimum Resolution | 0.001 µS/cm (conductivity, auto-ranging) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDBJ-350 |
| Portability | Portable |
| Application | Laboratory Use |
| Conductivity Range | 0.000 µS/cm to 500 mS/cm |
| TDS Range | 0.000 mg/L to 300 g/L |
| Resistivity Range | 5.00 Ω·cm to 20.00 MΩ·cm |
| Salinity Range | (0.00–8.00)% |
| Temperature Range | (−5.0–110.0) °C / (23.0–230.0) °F |
| Accuracy | ±1.0% FS (conductivity, resistivity, TDS), ±0.2% FS (salinity), ±0.2 °C (temperature) |
| Minimum Resolution | 0.001 µS/cm (conductivity), 0.01 Ω·cm (resistivity), 0.01 mg/L (TDS), 0.01% (salinity), 0.1 °C/°F (temperature) |
| IP Rating | IP65 |
| Electrode Compatibility | Auto-recognized 4 GB standard solutions |
| Compensation Modes | Non-compensated, linear (with reference at 20 °C or 25 °C), and pure-water compensation |
| Data Storage | 500 datasets per parameter |
| Interface | USB, RS-232 |
| Power | Rechargeable Li-ion battery |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDBJ-350 |
| Portability | Portable |
| Intended Use | Laboratory & Field |
| Conductivity Range | (0.00–1.999×10⁵) µS/cm (5 auto-ranging spans) |
| TDS Range | (0.00–19,990) mg/L (5 auto-ranging spans) |
| Salinity Range | (0.00–8.00)% |
| Resistivity Range | 0–100 MΩ·cm |
| Temperature Range | (0.0–40.0) °C |
| Conductivity Accuracy | ±1.0% FS ±1 digit |
| Salinity Accuracy | ±0.2% ±1 digit |
| Temperature Accuracy | ±0.3 °C ±1 digit |
| Temperature Compensation | 0.0–40.0 °C (reference 25 °C for conductivity, 18 °C for salinity) |
| Electrode Constants Available | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Data Storage Capacity | 250 sets |
| Interface | RS-232 |
| IP Rating | IP65 |
| Power Management | Low-power design with low-battery indicator and auto-off |
| Key | Brand: Leici |
|---|---|
| Model | DDBJ-350F |
| Type | Portable Conductivity Meter |
| Measurement Parameters | Conductivity, Resistivity, TDS, Salinity, Temperature |
| Conductivity Range | 0.000 µS/cm to 1000 mS/cm |
| TDS Range | 0.000 mg/L to 300 g/L |
| Resistivity Range | 5.00 Ω·cm to 20.00 MΩ·cm |
| Salinity Range | 0.00–8.00 % |
| Temperature Range | −5.0–110.0 °C (23.0–230.0 °F) |
| Accuracy | ±1.0 % FS (Conductivity/Resistivity/TDS), ±0.2 % FS (Salinity), ±0.2 °C (Temperature) |
| Resolution | 0.001 µS/cm (Conductivity), 0.01 Ω·cm (Resistivity), 0.001 mg/L (TDS), 0.01 % (Salinity), 0.1 °C/°F (Temperature) |
| Auto-Ranging Resolution Switching | Yes |
| Temperature Compensation | Automatic/manual, linear/pure-water/non-compensated modes |
| Calibration | 1–3 point, auto-recognition of 4 GB standard solutions |
| IP Rating | IP65 |
| Data Storage | 1000 datasets per parameter |
| Interface | USB, RS-232 |
| Power | Rechargeable Li-ion battery, AC adapter (100–240 V AC input / 5 V DC output) |
| Dimensions | 90 × 258 × 42 mm |
| Weight | 0.5 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Origin | Domestic (China) |
| Model | DDBJ-350F |
| Price Range | USD 420–690 |
| Measured Parameters | Conductivity, Resistivity, TDS, Salinity, Temperature |
| Portability | Handheld & Field-Deployable |
| Intended Use | Laboratory, Field Sampling, Quality Control |
| Conductivity Range | 0.000 µS/cm to 1000 mS/cm |
| TDS Range | 0.000 mg/L to 300 g/L |
| Resistivity Range | 5.00 Ω·cm to 20.00 MΩ·cm |
| Salinity Range | 0.00–8.00% |
| Temperature Range | −5.0 to 110.0 °C (23.0–230.0 °F) |
| Accuracy | ±1.0% FS (Conductivity/Resistivity/TDS), ±0.2% FS (Salinity), ±0.2 °C (Temperature) |
| Minimum Resolution | 0.001 µS/cm (Conductivity), 0.01 Ω·cm (Resistivity), 0.001 mg/L (TDS), 0.01% (Salinity), 0.1 °C/°F (Temperature) |
| IP Rating | IP65 |
| Electrode Compatibility | Auto-recognizing K=0.1, K=1.0, and K=0.01 conductivity cells |
| Calibration | 1–3 point, auto-identification of GB standard solutions (1413 µS/cm, 12.88 mS/cm, etc.) |
| Compensation Modes | Non-compensated, Linear (α=2.0%/°C), Pure Water (non-linear), Manual/ATC |
| Data Storage | 1000 datasets with timestamp, temperature, and electrode ID |
| Connectivity | USB-B port (PC/LIMS), RS-232 (printer), GLP-compliant audit trail |
| Power | Rechargeable Li-ion battery (≥100 h typical operation), USB-C charging support |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDBJ-350F |
| Portability | Portable |
| Application | Laboratory |
| Conductivity Range | 0.000 µS/cm to 1000 mS/cm |
| TDS Range | 0.000 mg/L to 300 g/L |
| Resistivity Range | 5.00 Ω·cm to 20.00 MΩ·cm |
| Salinity Range | (0.00–8.00)% |
| Temperature Range | (−5.0–110.0) °C / (23.0–230.0) °F |
| Accuracy | ±1.0% FS (conductivity, resistivity, TDS), ±0.2% FS (salinity), ±0.2 °C (temperature) |
| Minimum Resolution | 0.001 µS/cm (conductivity), 0.01 Ω·cm (resistivity), 0.001 mg/L (TDS), 0.01% (salinity), 0.1 °C/°F (temperature) |
| IP Rating | IP65 |
| Electrode Compatibility | Auto-recognized 4 GB standard solutions |
| Compensation Modes | Non-compensated, linear (with selectable reference temp: 20 °C or 25 °C), and pure water compensation |
| Data Storage | 1000 datasets per parameter |
| Interface | USB Type-B, RS-232 |
| Power | Rechargeable Li-ion battery (DC5V input via AC adapter, 100–240 VAC) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | DDBJ-351L |
| Detection Parameters | Multi-parameter (Conductivity, TDS, Resistivity, Salinity, Temperature) |
| Portability | Handheld / Field-Deployable |
| Intended Use | Laboratory, Field Sampling, and Quality Control Environments |
| Conductivity Range | 0.000 μS/cm to 3000 mS/cm |
| TDS Range | 0.000 mg/L to 1000 g/L |
| Resistivity Range | 5.00 Ω·cm to 100.0 MΩ·cm |
| Salinity Range | 0.00–8.00% (w/w) |
| Temperature Range | −10.0 to 135.0 °C / 14.0 to 275.0 °F |
| Accuracy | ±0.5% of Full Scale |
| Minimum Resolution | 0.001 μS/cm (auto-ranging) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | DDBJ-351L |
| Detection Parameters | Conductivity, Resistivity, TDS, Salinity, Ash Content, Temperature |
| Portability | Portable |
| Intended Use | Laboratory & Field |
| Conductivity Range | 0.000 μS/cm to 3000 mS/cm |
| TDS Range | 0.000 mg/L to 1000 g/L |
| Resistivity Range | 5.00 Ω·cm to 100.0 MΩ·cm |
| Salinity Range | 0.00–8.00% |
| Temperature Range | −10.0–135.0 °C / 14.0–275.0 °F |
| Accuracy | ±0.5% FS (Conductivity/Resistivity/TDS), ±0.1% FS (Salinity), ±0.1 °C (Temperature) |
| Minimum Resolution | 0.001 μS/cm (Conductivity), 0.01 Ω·cm (Resistivity), 0.001 mg/L (TDS), 0.01% (Salinity), 0.1 °C/°F (Temperature) |
| IP Rating | IP65 |
| Electrode Compensation | Automatic temperature compensation (ATC) with selectable reference temperatures (5.0, 10.0, 15.0, 18.0, 20.0, 25.0 °C) |
| Calibration | 1–5-point conductivity calibration |
| Data Storage | 1000 datasets per parameter group |
| Connectivity | USB, Bluetooth 5.0, U-disk support, barcode scanner interface |
| Power | Rechargeable Li-ion battery (DC5V input compatible with universal AC adapters) |
| Dimensions & Weight | 90 × 255 × 40 mm, 0.5 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDBJ-351L |
| Portability | Portable |
| Application | Laboratory |
| Conductivity Range | 0.000 µS/cm to 3000 mS/cm |
| TDS Range | 0.000 mg/L to 1000 g/L |
| Resistivity Range | 5.00 Ω·cm to 100.0 MΩ·cm |
| Salinity Range | (0.00–8.00)% |
| Temperature Range | (−10.0–135.0) °C / (14.0–275.0) °F |
| Accuracy | ±0.5% FS (conductivity, resistivity, TDS), ±0.1% FS (salinity), ±0.1 °C (temperature) |
| Minimum Resolution | 0.001 µS/cm (conductivity), 0.01 Ω·cm (resistivity), 0.001 mg/L (TDS), 0.01% (salinity), 0.1 °C/°F (temperature) |
| IP Rating | IP65 |
| Compliance | GLP-compliant data management, supports ASTM D1125, ISO 7888, USP <645>, and IEC 61000-4 EMC standards |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer | Leici (Shanghai Inesa Scientific Instrument Co., Ltd.) |
| Type | DDG-35 |
| Conductivity Range | 0.0 µS/cm to 200 mS/cm |
| Resistivity Range | 5.00 Ω·cm to 20 MΩ·cm |
| TDS Range | 0.0 mg/L to 100 g/L |
| Salinity Range | 0.00–8.00 % |
| Temperature Range | −10.0 to 120.0 °C |
| Basic Instrument Error | ±2.0 % FS (Conductivity) |
| Temperature Error | ±0.5 °C (0.0–60.0 °C), ±1.0 °C (other ranges) |
| Conductivity Resolution | 0.001 µS/cm (selectable: 0.001 / 0.01 / 0.1 / 1 µS/cm) |
| Temperature Resolution | 0.1 °C |
| Repeatability | 1.0 % FS (instrument), 0.3 % FS (electronic unit) |
| Auto-Temperature Compensation Range | −10 to 120 °C |
| Temp. Coefficient Adjustment | 0.0–10.0 %/°C |
| Output Signals | Isolated 4–20 mA DC (configurable span), Isolated RS-485 (Modbus RTU) |
| Enclosure Rating | IP65 |
| Dimensions | 166 × 166 × 110 mm |
| Weight | 2 kg |
| Standard Sensor Cable Length | 10 m |
| Mounting Cutout | 140 × 140 mm |
| Power Supply | AC 220 V ±10 %, 50 Hz ±1 % |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic Industrial Instrument |
| Model | DDG-5205A |
| Price Range | USD 850–1,420 (FOB Shanghai) |
| Conductivity Range | 0.000 µS/cm to 10.0 mS/cm (dependent on cell constant: K=0.01 cm⁻¹: 0–20 µS/cm |
| K=0.1 cm⁻¹ | 1–200 µS/cm |
| K=1.0 cm⁻¹ | 10–10,000 µS/cm) |
| Temperature Range | −10.0 to 120.0 °C |
| Temperature Compensation Range | 5.0 to 60.0 °C (reference temp: 25.0 °C) |
| Conductivity Resolution | 0.001 / 0.01 / 0.1 / 1 µS/cm (auto-ranging) |
| Temperature Resolution | 0.1 °C |
| Basic Error | ±2.0% FS (conductivity), ±0.5 °C (0.0–60.0 °C), ±1.0 °C (outside range) |
| Repeatability | 1.0% FS |
| Electronic Unit Accuracy | ±1.0% FS (conductivity), ±0.3 °C (temperature) |
| Drift Stability | ±0.5% FS/24 h |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz ±1% or DC 24 V ±15% |
| Dimensions | 166 × 166 × 110 mm |
| Weight | ~2.0 kg |
| Data Storage | 400 records with configurable logging interval |
| Output | Isolated 4–20 mA DC (user-defined upper/lower limits) |
| Digital Interface | RS-232 or RS-485 (selectable) |
| Auto-Cleaning Support | Yes |
| Alarm Functions | Programmable high/low limit alerts with relay output |
| Power Failure Protection | Non-volatile memory retention |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Benchtop |
| Measurement Principle | Two-electrode AC conductivity measurement |
| Measurement Range | 0–1×10⁵ µS/cm |
| Accuracy | ±1.5% FS (DDS-11A & DDS-11D), ±1.0% FS (DDS-11C) |
| Resolution | 0.1 µS/cm (analog scale) |
| Calibration Standard | NIST-traceable Chinese national calibration solutions |
| Compliance | GB/T 11018–2021 (Chinese National Standard for Conductivity Meters) |
| Power Supply | AC 220 V ±10%, 50 Hz |