Water Quality Analysis
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| Brand | VELP |
|---|---|
| Origin | Italy |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | BOD Sensor |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Dissolved Oxygen (DO)-Based Respirometric Method |
| Sensor Type | Mercury-Free Electronic Pressure Sensor |
| BOD Range Options | 90, 250, 600, and 1000 ppm |
| Data Logging | Automatic storage of up to 5 BOD values at 24-hour intervals |
| Display | Digital LCD readout |
| Durability | Industrial-grade sensor housing for long-term stability in lab environments |
| Compliance | Designed to support ISO 5815-1:2017 and APHA Standard Methods 5210B respirometric BOD protocols |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | BOD10 |
| Instrument Type | Laboratory |
| Measurement Principle | Pressure-based Respirometric Method (Mercury-Free Electronic Transducer) |
| Measurement Ranges | 90, 250, 600, 999 mg/L BOD₅ |
| Data Logging Interval | 24 h (5-point profile over standard 5-day incubation) |
| Operating Duration | Configurable from 1 to 28 days |
| Power Supply | Dual Lithium-Ion Batteries (2-year service life) |
| Safety Rating | IEC 61010-1 Class III |
| Ingress Protection | IP54 per EN 60529 |
| Operating Temperature | −20 °C to +65 °C |
| Weight | 80 g |
| Enclosure Material | Stainless Steel (316) with Chemical-Resistant Coating |
| Sample Capacity | Simultaneous monitoring of up to 10 samples (BOD Sensor System 10 configuration) |
| Alarm Function | Automatic out-of-range alert |
| Compliance | ASTM D5210, ISO 5815-1:2019, APHA 5210B, EU Directive 2000/60/EC (Water Framework Directive) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model Series | BOD6/20, BMS6/10 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Dissolved Oxygen (DO) Consumption Method |
| Sensor Technology | Mercury-Free Electronic Pressure Sensor |
| BOD Range Options | 90, 250, 600, 1000 ppm |
| Data Logging | Automatic storage of up to five BOD values at 24-hour intervals |
| Compliance | Designed for ISO 5815-1:2017 and ASTM D5210-92 (Standard Test Method for Determining Anaerobic Biodegradation of Organic Compounds in the Presence of Municipal Sewage) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | BODAuto 5000 |
| Principle | Pressure-difference (manometric) method |
| Measurement Range | 90–999 mg/L (extendable to 4000 mg/L via dilution) |
| Detection Limit | 90 mg/L |
| Accuracy | ±1 mg/L |
| Single-sample Analysis Time | 1 min |
| Repeatability | ±1% RSD |
| Sample Volume | 500 mL |
| Sensor Display | 3-digit LED, direct mg/L readout |
| Data Logging | Automatic BOD value storage every 24 h (up to 5 values) |
| Sensor Housing Material | High-performance polymer |
| Sensor Power | 2 × CR2430 lithium batteries (6 V total) |
| Ingress Protection | IP54 (IEC/EN 60529) |
| Safety Compliance | IEC/EN 61010-1 |
| Standards Conformance | ISO 5815-1:2019, Standard Method 5210D |
| Dimensions (Sensor) | 55 × 71 × 73 mm |
| Weight (Sensor) | 0.08 kg |
| Dimensions (Analyzer Unit) | 75 × 230 × 75 mm |
| Weight (Analyzer Unit) | 0.4 kg |
| Optional Configurations | 6-position and 10-position magnetic stirring systems (FOC 200E incubator compatible) |
| Accessories | Calibration kit (A00000135), Control test tablets (A00000136, 8 pcs/box) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ECO 8 / ECO 25 |
| Instrument Type | Laboratory Benchtop Digestion Unit |
| Measurement Principle | Closed-Tube Thermal Oxidation (Dichromate Reflux Method) |
| Wavelength for Photometric COD Readout | 610 ± 20 nm (requires compatible spectrophotometer) |
| COD Range | 10–5000 mg/L O₂ |
| Accuracy | ±0.5 mg/L (at low range), ±3% (full scale) |
| Repeatability | ±0.5% RSD |
| LOD | 0.1 mg/L |
| Digestion Time Programmable | 0–199 min or continuous mode |
| Batch Capacity | 8 or 25 samples simultaneously |
| Operating Temperatures | 70, 100, 120, 150, 160 °C (user-selectable, PID-controlled) |
| Safety Features | Transparent polycarbonate lid with overheat cut-off, auto-shutdown after cycle completion, thermal insulation housing |
| Optional Accessory | Alphanumeric tube extractor for ECO 25 |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ECO |
| Instrument Type | Laboratory Digestion Block |
| Digestion Principle | Standard 2-hour Closed-Vessel Oxidation (DIN 38409-H41, ISO 6060, APHA 5220C) |
| Temperature Range | Ambient to 200 °C |
| Thermal Stability | ±0.5 °C (ECO 6/16), ±0.3 °C (ECO 8/25) at 150 °C |
| Heating Time Programmable | 0–199 min |
| Sample Volume Capacity | Up to 200 mL per vial (ECO 6) |
| Batch Capacity | 6 / 8 / 16 / 25 positions |
| Construction | Powder-coated steel housing with chemical-resistant epoxy finish |
| Safety Features | Dual independent overtemperature protection, auto-shutdown on cycle completion, audible end-of-cycle alarm |
| Compliance | Designed for use with EPA Method 410.4, ISO 6060, and DIN 38409-H41 workflows |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ECO Series |
| Digestion Method | Rapid Digestion |
| Heating Module | Single Aluminum Block |
| Batch Capacity | 25 samples |
| Temperature Range | Ambient to 160 °C (ECO 8/16/25) |
| Temperature Accuracy | ±1 °C |
| Temperature Uniformity | ±0.5 °C |
| Temperature Stability | ±0.5 °C |
| Digestion Vessel Capacity | 5 mL (standard COD vials) |
| Timer Range | 1–199 min or continuous mode |
| Timer Resolution | 1 min |
| Display | LED showing set temperature and remaining time |
| Safety Features | Audible end-of-cycle alarm, automatic shutdown, optional safety shield |
| Power Supply | 230 V / 50–60 Hz (standard) |
| Power Consumption | 140–700 W depending on model |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ECO6, ECO8, ECO16, ECO25 |
| Power Supply | 220–240 V / 50–60 Hz or 110–130 V / 50–60 Hz |
| Temperature Control Accuracy | ±0.5 °C |
| Max Heating Temperature | ECO6 up to 200 °C |
| Sample Capacity | ECO6: 6 × 20 mL tubes |
| ECO8 | 8 × Ø16 mm + 1 × Ø22 mm tubes |
| ECO16 | 14 × Ø16 mm + 2 × Ø22 mm tubes |
| ECO25 | 25 × Ø16 mm tubes |
| Power Consumption | ECO6: 700 W |
| ECO8 | 140 W |
| ECO16 | 550 W |
| ECO25 | 400 W |
| Weight | ECO6: 5.6 kg (12.3 lb) |
| ECO8 | 2.0 kg (4.4 lb) |
| ECO16 | 3.8 kg (8.4 lb) |
| ECO25 | 3.6 kg (7.9 lb) |
| Dimensions (W × H × D) | ECO6: 198 × 132 × 319 mm (7.8 × 5.2 × 12.5 in) |
| ECO8 | 135 × 95 × 230 mm (5.3 × 3.7 × 9.0 in) |
| ECO16 | 168 × 110 × 269 mm (6.6 × 4.3 × 10.6 in) |
| ECO25 | 155 × 95 × 275 mm (6.1 × 3.7 × 10.8 in) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | FOC225E / FOC225I |
| Internal Volume | 196 L |
| Temperature Range | 3–50 °C |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Control System | Microprocessor-based PID control |
| Power Consumption | 350 W |
| Net Weight | 40 kg |
| PC Connectivity | Yes, with dedicated software for real-time logging, temperature curve plotting, and programmable cycle scheduling |
| Door Configuration | FOC225E — solid insulated door |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | FTC90 / FTC90E / FTC90I |
| Internal Volume | 64 L |
| Temperature Range (FTC90E & FTC90I) | 3–50 °C |
| Temperature Range (FTC90) | 20 °C fixed |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution (FTC90E/FTC90I) | 0.1 °C |
| Control System | Microprocessor-based PID control |
| Power Consumption | 150 W (FTC90), 250 W (FTC90E/FTC90I) |
| Net Weight | 24.5 kg (FTC90), 29 kg (FTC90E/FTC90I) |
| Door Type | Solid door (FTC90/FTC90E), Double-glazed observation door (FTC90I) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | FTC90 Series |
| Internal Volume | 64 L / 196 L |
| Temperature Range | 3–50 °C |
| Temperature Control Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Control System | Microprocessor-based PID control with forced-air circulation |
| Data Logging | PC connectivity via RS232/USB, compatible with VELP专用 software for time-temperature profiling and programmable cycles |
| Power Consumption | 350 W |
| Compliance | Designed for ISO 5815-1:2017, ISO 5815-2:2017, and APHA Standard Methods 5210B (BOD₅) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | JLT6, FC6S |
| Construction | Epoxy-coated steel housing |
| Stirrer speed range (JLT6) | 10–300 rpm, 1 rpm resolution |
| Stirrer speed steps (FC6S) | 10, 15, 30, 45, 60, 90, 120, 150, 200 rpm |
| Microprocessor-controlled timer (JLT6) | 0–999 min or 0–99 h |
| Power consumption | 11 W (JLT6), 23 W (FC6S) |
| Net weight | 17 kg (JLT6), 18 kg (FC6S) |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | RESPIROMETRIC |
| Instrument Type | Laboratory BOD Analyzer |
| Principle | Manometric (Pressure-Difference) Method |
| Measurement Range | 90–999 mg/L O₂ demand |
| Detection Limit | 90 mg/L |
| Accuracy | ±1 mg/L |
| Single-Sample Measurement Time | 1 min |
| Repeatability | ±1% |
| Pressure Sensing Range | 500–2000 mbar |
| Sample Throughput | Up to 48 vessels simultaneously |
| Data Transmission | Wireless (via DataBox™) |
| Software Integration | RESPIROSOFT™ |
| Optional Cloud Platform | Ermes™ |
| Compliance | Designed for ASTM D5210, ISO 10707, ISO 11734, ISO 14852, and OECD 301 series testing protocols |
| Origin | Beijing |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic |
| Model | VG-mini |
| Price | Upon Request |
| Material | Stainless Steel |
| Weight | 8 kg |
| Sampling Area | 20 cm × 10 cm |
| Sediment Penetration Depth | 10 cm |
| Carrying Case | Anodized Aluminum Transport Box |
| Brand | Wagtech |
|---|---|
| Origin | United Kingdom |
| Model | Potalab |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Detection Capabilities | Microbiological Testing, Physicochemical Parameter Analysis |
| Key Components | Portable Incubator (dual-zone, 20–50 °C), Digital Arsenic Analyzer (2–100 µg/L, arsenical spot method), 7100 Multi-parameter Photometer (≥100 pre-programmed calibration curves, IP67 rated), Portable Turbidimeter (ISO 7027 compliant, 0.01–1000 NTU), pH/Conductivity/TDS Meter (IP67, auto-temp compensation) |
| Origin | Japan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | WAK |
| Pricing | Upon Request |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-M1102 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Ion-Selective Electrode) |
| Range | 0–100 mg/L NH₃–N |
| Accuracy | ±10% FS |
| Detection Limit | 0 mg/L (defined by electrode sensitivity and signal-to-noise ratio) |
| Measurement Time | ≤60 s per parameter |
| Simultaneous Channels | 6 independent electrode ports |
| Display | 8-inch HD color capacitive touchscreen |
| Data Storage | 1,000,000 measurement records with timestamp, location (optional GPS), and electrode ID |
| Power Supply | Rechargeable Li-ion battery (≥12 h continuous operation) |
| IP Rating | IP68 for electrodes |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Connectivity | USB 2.0, optional Bluetooth 5.0 module |
| Software Compliance | Audit-trail enabled logging, user-access levels, data export in CSV/Excel format |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | Dr-M1202P |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Ion-Selective Electrode, ISE) |
| Measurement Range | 0–100 mg/L NH₃–N |
| Accuracy | ±10% of reading |
| Detection Limit | 0 mg/L (defined by electrode sensitivity and signal-to-noise ratio) |
| Measurement Time | ≤60 seconds per sample |
| Sample Throughput | Three independent electrode measurement positions |
| Display | 5-inch HD color TFT touchscreen |
| Language Support | English & Chinese |
| Data Storage | Up to 1,000,000 measurement records |
| Power Supply | Rechargeable Li-ion battery + USB Type-C AC/DC adapter (dual-mode operation) |
| Electrode Protection Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Cable Length | 3–5 m (customizable) |
| Built-in Thermal Printer | Yes |
| Data Interface | USB Type-C (for charging, data export, and firmware update) |
| Reading Modes | Real-time, Timed, and Interval |
| Auto Temperature Compensation | Yes |
| Sleep Mode | Configurable idle timeout |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-M5100 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Principle | Infrared Spectrophotometry (Triple-Wavelength Absorption at 2930 cm⁻¹, 2960 cm⁻¹, and 3030 cm⁻¹) |
| Measurement Range | 0.0–800 mg/L (water matrix) |
| Detection Limit | 3σ ≤ 0.03 mg/L (based on 11 blank measurements) |
| Accuracy | ±2% relative error |
| Wavenumber Range | 2400–3400 cm⁻¹ (equivalent to 2941–4167 nm) |
| Wavenumber Accuracy | ±1 cm⁻¹ |
| Absorbance Range | 0.0000–2.0000 AU (T = 100%–1%) |
| Extraction Solvents | Perchloroethylene or Carbon Tetrachloride (compliant with HJ 637–2018) |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9001 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry |
| Wavelength Range | 340–900 nm |
| COD Range | 2–20,000 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| LOD | 2 mg/L |
| Digestion & Measurement Time | 10 min |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Light Source | Imported Cold LED (Lifespan > 100,000 h) |
| Pre-stored Calibration Curves | 1,000 |
| Data Storage Capacity | 1,000,000 records |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable 16-mm tube position (360°), dual cuvette positions (10 mm & 30 mm pathlength), and four independent digital electrode ports |
| Detection Modes | Absorbance, Transmittance, Concentration |
| Calibration Options | Single-point and multi-point standard calibration |
| Data Export | USB flash drive |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9003 |
| Measurement Principle | Spectrophotometry (UV-Vis) |
| Detection Range | 0–100 mg/L (for both TP and TN) |
| Accuracy | ≤ ±5% |
| Detection Limit | Not specified (instrument-level LOD determined by method, not instrument spec) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs / 20 min |
| Light Source | Imported cold-light LED (rated lifetime > 100,000 h) |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable tube holder (360°), dual cuvette positions (10 mm & 30 mm pathlength), four independent digital electrode ports |
| Calibration | Single- or multi-point calibration with up to 1000 pre-stored method curves |
| Data Storage | 1,000,000 measurement records |
| Interface | USB port for data export (U-disk compatible), built-in thermal printer |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9901 |
| Instrument Type | Portable |
| Measurement Principle | Rapid Digestion Spectrophotometry (Lab-Grade) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | <0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤0.2% T |
| COD Range | 2–20,000 mg/L |
| COD Accuracy | ≤±5% |
| LOD (COD) | 2 mg/L |
| Optical Stability | ≤±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Photometric System | Fiber-Optic Detection |
| Display | 5-inch HD Touchscreen |
| Calibration Modes | Single-point & Multi-point |
| Pre-stored Curves | 600 |
| Data Storage | 1,000,000 records |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Housing Material | Corrosion-Resistant ABS |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W112 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Spectrophotometric (4-AAP Method per HJ 503-2009 / ISO 6439) |
| Primary Target Analyte | Volatile Phenols |
| Measured Parameters | Turbidity (0–20 NTU / 0–200 NTU / 0–1000 NTU), Color, Free Chlorine, Chlorine Dioxide, Total Hardness, Permanganate Index (COD<sub>Mn</sub>), Ammonia Nitrogen, Ozone, Urea, Iron, Manganese |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Photometric Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Repeatability | ≤±2% |
| Accuracy | ≤±5% |
| Light Source | Imported Long-Life Cold LED (≥100,000 h) |
| Sample Cell | 16 mm and 25 mm round cuvettes |
| Display | 5-inch HD color TFT capacitive touchscreen |
| Language Support | English & Chinese |
| Power Supply | Rechargeable Li-ion battery + AC adapter (dual-mode operation) |
| Data Storage | Up to 1,000,000 measurement records |
| Connectivity | USB Type-C (charging + data transfer) |
| Printing | Built-in thermal printer |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Interference Compensation | Integrated chromaticity & optical attenuation correction algorithm |
| Housing Material | Corrosion-resistant ABS with IP67-rated enclosure |
| Compliance | Designed in accordance with HJ 503-2009 (China), ISO 6439:1984, and ASTM D1209/D5810 for phenolic compounds |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W5000 |
| Instrument Type | Portable |
| Measurement Principle | Ultraviolet Fluorescence Spectrometry |
| Measurement Range | 0.005–1500 mg/L (as petroleum hydrocarbons) |
| Detection Limit | 0.005 mg/L |
| Accuracy | ±5% of reading |
| Detector | UV-optimized photomultiplier tube (PMT) with excitation at 254 nm and emission detection at 365 nm |
| Measurement Time | ≤120 seconds per sample |
| Display | 5-inch high-resolution color TFT touchscreen |
| Power Supply | Rechargeable lithium-ion battery (standby >30 days |
| Data Storage | 1,000,000 measurement records with timestamp, sample ID, and calibration history |
| Connectivity | USB 2.0 for data export and firmware update |
| Operating Environment | 5–40 °C, relative humidity <85% RH (non-condensing) |
| Sample Vessel | Dedicated quartz-cuvette-compatible disposable glass tubes (10 mm pathlength) |
| Extraction Solvent | n-Hexane (ASTM D7066-compliant) |
| Auto-Sleep | Activated after 5 minutes of inactivity |
| Built-in Thermal Printer | Yes |
| Color Compensation Algorithm | Real-time spectral correction for chromophoric interference |
| Onboard Calibration Module | User-accessible zero/span and multi-point calibration routines |
| Compliance | Designed to support ASTM D7678, ISO 9377-2, and EPA Method 1664B workflows (extraction-dependent) |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W660 |
| Measurement Principle | In-situ Fluorescence Detection |
| Chlorophyll-a Range | 0.01–500 µg/L |
| Phycocyanin (Cyanobacteria) Range | 0–40 × 10⁶ cells/L |
| Detection Limit | 0.01 µg/L (Chl-a), 1 × 10⁴ cells/L (Cyanobacteria) |
| Resolution | 0.01 µg/L (Chl-a), 10⁴ cells/L (Cyanobacteria) |
| Accuracy | ±5% FS |
| Display | 5-inch HD color capacitive touchscreen |
| Power | Rechargeable Li-ion battery (≥30-day standby), AC adapter support |
| Data Storage | 1,000,000 records |
| Interface | USB 2.0 |
| Printer | Integrated thermal printer |
| Sample Cell | 10 mm square quartz cuvette |
| Housing Material | Corrosion-resistant ABS |
| Operating Temp | 5–40 °C |
| Relative Humidity | <85% RH (non-condensing) |
| Compliance | Designed for field-deployable compliance with ISO 10260 (water quality — determination of chlorophyll-a by fluorescence), ASTM D7212-19 (standard test method for chlorophyll-a in water by fluorometric measurement) |
| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W900 |
| Instrument Type | Portable |
| Biological Indicator | Bioluminescent Bacteria (Aliivibrio fischeri, Photobacterium phosphoreum, Vibrio qinghaiensis) |
| Operating Ambient Temperature | 10–40 °C |
| Reagent Storage Temperature | 2–8 °C (adjustable, ±1 °C accuracy) |
| Detection Temperature Control | 15–25 °C (adjustable, ±1 °C accuracy) |
| Incubation Capacity | 10 sample positions with independent temperature control |
| Detection Time | ≤15 minutes post-sample preparation |
| Compliance | GB/T 15441–1995, ISO 11348-3 |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-WCI |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | DPD Colorimetric Spectrophotometry (ASTM D1253, ISO 7393-2, EPA 330.5) |
| Measuring Parameter | Free Chlorine (Residual Chlorine) |
| Range | 0.02–2.00 mg/L as Cl₂ |
| Accuracy | ≤ ±5% of reading |
| Repeatability | ≤ ±2% RSD |
| Detection Limit | 0.02 mg/L |
| Absorbance Resolution | 0.001 Abs |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Stability | ≤ ±0.005 Abs / 20 min |
| Display | 8-inch HD capacitive touchscreen |
| Language Support | English & Chinese |
| Sample Holders | Rotatable 16-mm cuvette position + fixed 25-mm cuvette position |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Data Storage | Up to 1,000,000 measurement records |
| Connectivity | USB port for data export |
| Output Modes | Concentration (mg/L) or Absorbance (Abs) |
| Printer | Built-in thermal printer |
| Housing Material | Flame-retardant ABS with chemical resistance |
| Dimensions (W×D×H) | 392 × 315 × 170 mm |
| Light Source | Long-life imported cold LED (rated >100,000 hours) |
| Origin | UK |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Waterwatch2300 |
| Pricing | Upon Request |
| Origin | UK |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Waterwatch2420 |
| Pricing | Available Upon Request |