Chemical Oxygen Demand Analyzer
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| Brand | Shenchanghong |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Rapid Digestion–Spectrophotometric Method (610 nm) |
| COD Range | 5–2000 mg/L |
| Ammonia-N Range | 0.02–25 mg/L |
| Accuracy | ≤ ±5% (COD), ≤ ±3% FS (NH₃-N) |
| Repeatability | ≤ ±3% |
| Detection Limit | 0.01 mg/L (COD), 0.02 mg/L (NH₃-N) |
| Digestion Time | 15 min (COD), Adjustable 1–9999 min |
| Total Analysis Time | ~20 min per batch |
| Batch Capacity | Up to 20 samples (with DIS-16B digester) |
| Optical Drift | < 0.002 A in 20 min |
| Chloride Interference Tolerance | ≤ 2000 mg/L (COD mode) |
| Power Consumption | <10 W (analyzer), <500 W (digester) |
| Dimensions (Analyzer) | 340 × 250 × 130 mm |
| Weight (Analyzer) | 4.0 kg |
| Digester Display | 3.5″ color TFT touchscreen (320 × 240), bilingual Chinese/English UI |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | PCOD-810 |
| Instrument Type | Portable |
| Measurement Principle | High-Temperature Sealed Catalytic Digestion + Photometric Colorimetry at Fixed Wavelength |
| Measurement Wavelength | 610 nm (high-range), 420 nm (low-range) |
| Measurement Range | 5–2000 mg/L COD (dilutable beyond range) |
| Accuracy | ≤ ±5% of reading |
| Repeatability | ≤ ±0.3% |
| Detection Limit | 0.1 mg/L |
| Digestion Temperature | 165 °C ± 1.0 °C |
| Digestion Time | 15 min |
| Sample Throughput | 4 samples per batch (16-sample digestion block optional) |
| Chloride Interference Tolerance | ≤ 2000 mg/L Cl⁻ |
| Optical System | Cold LED Light Source with Narrow-Band Interference Filters |
| Data Storage | 500 measurement records with non-volatile memory |
| Calibration Curves | Up to 50 user-programmable or factory-loaded curves |
| Power Supply | Rechargeable Li-ion battery (host) |
| Enclosure Rating | IP65 |
| Dimensions (Host) | 80 × 230 × 55 mm |
| Weight (Host) | 0.5 kg |
| Dimensions (Digestor) | 130 × 120 × 95 mm |
| Weight (Digestor) | 1.0 kg |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | PWN-820A |
| Instrument Type | Portable |
| Measurement Principle | UV-Vis Absorption Spectrophotometry (Dual-Wavelength) |
| Wavelengths | 610 nm (COD), 420 nm (Ammonia-N) |
| COD Range | 0–2000 mg/L (dilutable to 5 mg/L) |
| Ammonia-N Range | 0.02–25 mg/L |
| Accuracy | ≤ ±5% for COD |
| Repeatability | ≤ ±3% |
| Detection Limit | 0.1 mg/L (COD), 0.02 mg/L (Ammonia-N) |
| Measurement Time | ≤ 20 min per batch |
| Batch Capacity | 10 samples |
| Optical Stability | Drift < 0.002 A within 20 min |
| Chloride Interference Tolerance | ≤ 2000 mg/L (for COD) |
| Dimensions (Analyzer) | 80 × 230 × 55 mm |
| Dimensions (Digester) | 105 × 160 × 90 mm |
| Weight | 500 g (analyzer only) |
| Protection Rating | IP65 |
| Power | Rechargeable Li-ion battery (6-month standby) |
| Data Storage | 199 measurement records with timestamp (YYYY-MM-DD hh:mm:ss), absorbance & transmittance values |
| Interface | USB port for data export and PC connectivity |
| Housing Material | Molded ABS polymer |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | PWN-820B |
| Instrument Type | Portable |
| Measurement Principle | UV-Vis Absorption Spectrophotometry (610 nm) |
| COD Range | 0–2000 mg/L |
| Total Phosphorus Range | 0.00–10.00 mg/L |
| Accuracy | ≤ ±5% (COD & TP) |
| Repeatability | ≤ ±3% |
| Detection Limit | 0.1 mg/L (COD), 0.01 mg/L (TP) |
| Measurement Time | 15 min per batch |
| Batch Capacity | 10 samples |
| Optical Drift | < 0.002 A in 20 min |
| Chloride Interference Tolerance | ≤ 2000 mg/L (for COD) |
| Dimensions (Analyzer) | 80 × 230 × 55 mm |
| Dimensions (Digestor) | 105 × 160 × 90 mm |
| Enclosure Rating | IP65 |
| Power | DC 12 V (AC/DC adapter included) |
| Data Storage | 199 measurement records with timestamp (YYYY-MM-DD hh:mm:ss), plus 30 user-defined calibration curves |
| Interface | USB port for data export and PC connectivity |
| Housing Material | Molded ABS |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic (China) |
| Model | PWN-820C |
| Instrument Type | Portable |
| Measurement Principle | UV Absorption Spectrophotometry |
| Wavelength | 410 nm |
| COD Range | 0–2000 mg/L |
| TN Range | 0.05–100 mg/L |
| Accuracy | ≤ ±5% (COD & TN) |
| Repeatability | ≤ ±3% |
| Detection Limit | 0.1 mg/L (COD) |
| Measurement Time | 15 min per batch |
| Batch Capacity | 10 samples |
| Optical Drift | < 0.002 A in 20 min |
| Chloride Interference Tolerance | ≤ 2000 mg/L (for COD) |
| Dimensions (Analyzer) | 80 × 230 × 55 mm |
| Dimensions (Digester) | 105 × 160 × 90 mm |
| Protection Rating | IP65 |
| Data Storage | 199 measurements with timestamp (YYYY-MM-DD hh:mm:ss), plus 30 user-defined calibration curves |
| Interface | USB port for data export and PC connectivity |
| Power | DC 12 V (AC/DC adapter included) |
| Housing Material | Molded ABS |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | PWN-830A |
| Instrument Type | Portable |
| Measurement Principle | UV-Vis Absorption Spectrophotometry (Dual-Wavelength, Fixed-Filter Optical Path) |
| Primary Wavelengths | 610 nm (COD), 420 nm (Ammonia Nitrogen), 700 nm (Total Phosphorus) |
| COD Range | 5–2000 mg/L (dilutable to 10,000 mg/L) |
| Ammonia Nitrogen Range | 0.02–25 mg/L |
| Total Phosphorus Range | 0.00–10 mg/L |
| Accuracy | ≤ ±5% FS (COD & TP), ≤ ±3% FS (NH₃-N) |
| Repeatability | ≤ ±3% RSD |
| LOD | 0.1 mg/L (COD), 0.01 mg/L (NH₃-N), 0.005 mg/L (TP) |
| Measurement Time | 15 min (COD), 30 min (TP), <10 min (NH₃-N post-digestion) |
| Batch Capacity | 4 samples per digestion cycle |
| Digestion Temperature Control | 30–200 °C, PID-regulated, ±0.5 °C stability |
| Digestion Timer | 1–999 min adjustable |
| Optical Drift | <0.002 A over 20 min |
| Data Storage | 199 measurement records with timestamp (YYYY-MM-DD hh:mm:ss), 30 user-defined calibration curves |
| Power Supply | DC 12 V (included AC/DC adapter), battery-ready design |
| Enclosure Rating | IP65 |
| Dimensions (Analyzer) | 80 × 230 × 55 mm |
| Dimensions (Digestion Unit) | 105 × 160 × 90 mm |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | PWN-840A |
| Instrument Type | Portable |
| Measurement Principle | UV-Vis Absorption Spectrophotometry (Dual-Wavelength) |
| Wavelengths | 340 nm, 420 nm, 610 nm, 700 nm |
| COD Range | 5–2000 mg/L |
| NH₃-N Range | 0.02–25 mg/L |
| Total Phosphorus Range | 0.00–10 mg/L |
| Total Nitrogen Range | 0.05–100 mg/L |
| Accuracy | ≤±5% F.S. (COD, TP, TN) |
| Repeatability | ≤±3% |
| Detection Limit | 0.1 mg/L (COD) |
| Measurement Time | 15 min (COD), 30 min (TP/TN) |
| Batch Capacity | 4 samples (standard), optional 16-sample digestion block |
| Digestion Temp | 120–165 °C |
| Temperature Control Precision | ±0.5 °C |
| Optical Stability | ≤0.002 A/20 min |
| Power Supply | Internal Li-ion battery (host), 12 V DC (car adapter), or 220 V AC |
| IP Rating | IP65 |
| Dimensions (Host) | 80 × 230 × 55 mm |
| Weight (Host) | 0.5 kg |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | QCOD-3E |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Rapid Digestion Method (Closed-Tube Catalytic Digestion) |
| Wavelength | 610 nm |
| Measurement Range | 5–2000 mg/L (dilution enabled for higher concentrations) |
| Accuracy | ≤ ±5 % |
| Repeatability | ≤ 3 % |
| Detection Limit | 0.1 mg/L |
| Digestion Time | 10 min |
| Total Assay Time | 15 min |
| Batch Capacity | 20 samples per run |
| Chloride Interference Tolerance | ≤ 2000 mg/L Cl⁻ |
| Digestion Temperature | 165 °C (adjustable from ambient to 180 °C) |
| Temperature Control Accuracy | ±0.5 °C |
| Temperature & Time Programmability | PID-controlled, 1–999 min adjustable |
| Optical Stability | Absorbance drift < 0.002 A within 20 min |
| Dimensions (Analyzer) | 240 × 205 × 170 mm |
| Dimensions (Digestion Unit) | 240 × 107 × 170 mm |
| Weight (Analyzer) | 3 kg |
| Weight (Digestion Unit) | 4 kg |
| Power Consumption | < 500 W |
| Operating Environment | 5–40 °C, RH ≤ 85 %, AC 220 V ± 10 %, 50 Hz ± 0.5 Hz, low-vibration, low-EMI, no direct sunlight |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Potassium Dichromate Digestion Method (Sealed Reflux) |
| Wavelength | 610 nm |
| Measurement Range | 5–2000 mg/L (dilution applicable for higher concentrations) |
| Accuracy | ≤ ±8 % |
| Repeatability | ≤ 3 % |
| Detection Limit | 0.1 mg/L |
| Digestion Time | 15 min |
| Total Analysis Time | 20 min |
| Batch Capacity | 12 samples per run |
| Temperature Control Range | Ambient to 200 °C (default digestion setpoint: 165 °C) |
| Temperature Accuracy | ±0.5 °C |
| Timer Range | 1–999 min |
| Optical Drift | < 0.002 A within 20 min |
| Dimensions (Analyzer) | 240 × 205 × 170 mm |
| Dimensions (Digestion Unit) | 240 × 107 × 170 mm |
| Weight (Analyzer) | 3 kg |
| Weight (Digestion Unit) | 4 kg |
| Power Consumption | < 500 W |
| Operating Environment | 5–40 °C, RH ≤ 85 %, AC 220 V ±10 %, 50 Hz ±0.5 Hz |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | QCOD-3M |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Rapid Sealed Catalytic Digestion followed by Spectrophotometric Detection |
| Wavelength(s) | Dual-wavelength optical system (optimized for low-range and high-range COD determination per HJ/T 399–2007) |
| Measurement Range | 5–2000 mg/L COD (dilutable for samples exceeding upper limit) |
| Accuracy | ≤ ±5 % of reading |
| Repeatability | ≤ 3 % RSD |
| Limit of Detection (LOD) | 0.1 mg/L COD |
| Digestion Time | 15 min |
| Batch Capacity | 16 samples per run |
| Temperature Control Range | Ambient to 200 °C |
| Temperature Accuracy | ±0.5 °C |
| Timer Range | 1–9999 min (adjustable) |
| Optical Stability | Absorbance drift < 0.002 A over 20 min |
| Dimensions (Analyzer) | 400 × 310 × 158 mm |
| Dimensions (Digestion Unit DIS-16B, without shield) | 355 × 260 × 135 mm |
| Weight (Analyzer) | 5 kg |
| Weight (Digestion Unit) | 5.5 kg |
| Power Consumption | < 500 W |
| Operating Environment | 5–40 °C ambient temperature |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TCNP-301D |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion–Spectrophotometric Method (Colorimetric) |
| Wavelength Range | 420 nm, 610 nm, 700 nm (pre-configured for COD, NH₃-N, and TP) |
| Measurement Ranges | COD: 5–2000 mg/L (extendable to 20,000 mg/L) |
| Ammonia-N | 0.02–25 mg/L |
| Total Phosphorus | 0.00–20 mg/L |
| Accuracy | COD: ≤ ±5% FS |
| Ammonia-N | ≤ ±3% FS |
| Total Phosphorus | ≤ ±5% FS |
| Repeatability | ≤ 3% RSD |
| Detection Limit | 0.2 mg/L (COD) |
| Analysis Time | COD: 15 min |
| Total Phosphorus | 30 min |
| Batch Capacity | 16 samples (optional 20/25/36-position digestion blocks) |
| Digestion Temperature | 120–165 °C (adjustable) |
| Temperature Control Accuracy | ≤ ±1.0 °C |
| Optical Stability | ≤ 0.002 A / 20 min |
| Data Storage | 100,000 records (including parameter name, concentration, unit, timestamp, operator ID) |
| Display | 7-inch color TFT touchscreen with bilingual (Chinese/English) UI |
| Connectivity | USB port for data export and PC software integration |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop Analyzer |
| Model | TCNPN-401D |
| Detection Principle | Rapid Digestion Spectrophotometry (Hach-style closed-tube digestion followed by absorbance measurement) |
| Wavelength Range | 420 nm (COD), 610 nm (Ammonia-N), 700 nm (Total Phosphorus), 220/275 nm (Total Nitrogen via UV-VIS dual-wavelength correction) |
| Measurement Ranges | COD: 5–2000 mg/L (extendable to 20,000 mg/L) |
| Ammonia-N | 0.02–25 mg/L |
| Total Phosphorus | 0.00–10 mg/L |
| Total Nitrogen | 0.05–100 mg/L |
| Accuracy | ≤ ±5% (COD, TP, TN), ≤ ±3% (NH₃-N) |
| Repeatability | ≤ 3% RSD |
| Detection Limit | 0.1 mg/L (COD), 0.01 mg/L (NH₃-N), 0.005 mg/L (TP), 0.02 mg/L (TN) |
| Digestion Time | 15 min (COD), 30 min (TP/TN), variable (NH₃-N) |
| Batch Capacity | 16 samples (expandable to 20/25/36 with optional DIS-20B/DIS-25B/DIS-36B digester) |
| Optical Stability | ≤ 0.002 A/20 min |
| Temperature Control Range | Ambient to 200 °C |
| Temperature Accuracy | ≤ ±1.0 °C |
| Chloride Interference Tolerance | ≤ 2000 mg/L (COD module with masking agent) |
| Data Storage | 100,000 records (including timestamp, operator ID, parameter, concentration, unit, calibration history) |
| Interface | USB 2.0, thermal printer port |
| Display | 7-inch color capacitive touchscreen, bilingual (English/Chinese) UI |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TMULP-3000 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion (for COD) + Spectrophotometry (UV-Vis) + Electrochemical Sensing (pH, EC, DO, Temp) |
| Optical Channels | 4 / 8 / 12 / 16 (customizable 1–16) |
| Available Wavelengths | 340, 420, 440, 470, 520, 540, 560, 610, 630, 660, 680, 700 nm |
| Wavelength Accuracy | ±1 nm (center wavelength) |
| Absorbance Range | −2.000 to +2.000 A |
| Absorbance Linearity | ±0.002 A (0–1 A) |
| Absorbance Precision | ±0.005 A at 1 A |
| Repeatability | ≤±2% (spectrophotometric), ≤±3% (electrochemical) |
| Detection Limit (COD) | 0.1 mg/L |
| Measurement Time (per batch) | 15 min |
| Batch Capacity | 16 samples |
| Photometric Stability | ≤0.002 A / 20 min |
| Light Intensity Adjustment | 16-level programmable |
| Temperature Range (Operation) | 5–40 °C |
| Relative Humidity (Operation) | ≤90% RH |
| Storage Environment | −40 to +60 °C, ≤90% RH |
| Display | Color TFT Touchscreen (bilingual: English/Chinese) |
| Power Supply | AC 220 V (165–240 V), 30 W |
| Dimensions | 400 × 300 × 140 mm |
| Weight | 2.6 kg |
| Host Power Consumption | <10 W |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Catalytic Digestion Followed by Spectrophotometric Detection (Dichromate Method per HJ 399–2017) |
| Measurement Range | 5–2000 mg/L COD (dilutable for higher concentrations) |
| Accuracy | ≤ ±5 % of Full Scale |
| Repeatability | ±3 % RSD |
| Detection Limit | 0.2 mg/L COD |
| Digestion Time | 15 min at 165 °C |
| Batch Capacity | 16 samples (optional configurations: 20/25/36 positions) |
| Chloride Interference Tolerance | ≤ 2000 mg/L Cl⁻ |
| Optical Stability | ≤ 0.002 A / 20 min |
| Temperature Control Range | Ambient to 200 °C (±0.5 °C accuracy) |
| Display | 7-inch Color TFT Touchscreen with Dual-Language UI (English & Chinese) |
| Data Storage | Up to 100,000 measurement records with timestamp, operator ID, calibration history, and curve metadata |
| Connectivity | USB 2.0 port for data export and PC software integration |
| Power Supply | AC 220 V ±10 %, 50 Hz |
| Dimensions (Analyzer) | 400 × 300 × 140 mm |
| (Digestion Unit) | 260 × 355 × 135 mm (excl. shield) |
| Net Weight (Analyzer) | 2.6 kg |
| (Digestion Unit) | 5.5 kg |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop Analyzer |
| Model | TQCOD-3N |
| Measurement Principle | Sealed Catalytic Digestion + Spectrophotometric Detection at 610 ± 20 nm |
| Measurement Range | 5–2000 mg/L (extendable to 20,000 mg/L) |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±3% |
| Detection Limit | 0.1 mg/L |
| Digestion Temperature | 165 °C |
| Digestion Time | 15 min |
| Temperature Control Range | Ambient to 200 °C |
| Chloride Interference Tolerance | ≤ 2000 mg/L |
| Optical Stability | ≤ 0.002 A / 20 min |
| Batch Capacity | 16 samples (optional 20/25/36-tube configurations) |
| Display | Color TFT Touchscreen with English & Chinese UI |
| Data Storage | Up to 100,000 records (including timestamp, operator ID, concentration, unit, method ID) |
| Connectivity | USB interface for PC data export |
| Power Protection | Dual-stage thermal cutoff (auto-shutdown at >200 °C) |
| Calibration | Multi-point non-linear temperature compensation |
| Reporting | On-device printing & software-assisted report generation |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SH-200 |
| Instrument Type | Laboratory-Grade |
| Measurement Principle | Rapid Digestion Method |
| Wavelength | 610 ± 1 nm |
| Measurement Range | 5–6000 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| Limit of Detection | 5 mg/L |
| Analysis Time | 20 minutes per batch |
| Sample Throughput | 16 samples per run |
| Display | 5-inch IPS capacitive touchscreen |
| Wavelength Accuracy | ±1 nm |
| Data Storage Capacity | >100,000 measurement records (expandable via TF card up to 5 million entries) |
| Power Supply | AC 220 V, 50 Hz |
| Dimensions | 270 × 190 × 130 mm |
| Net Weight | 1.5 kg |
| Light Source | Long-life cold LED (≥100,000 h lifetime) |
| Optical Design | Rear-mounted monochromator with narrow-band interference filter |
| Optional Output | Wireless thermal printer interface |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | OEM Producer |
| Product Category | Domestic Lab Instrument |
| Model | SH-2000A |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry |
| Wavelength Range | 190–1100 nm ±1 nm |
| COD Range | 5–1000 mg/L |
| Accuracy | ≤±5% |
| Repeatability | ≤±5% |
| LOD (COD) | 0.1 mg/L |
| Analysis Time | 20–40 min per batch |
| Batch Capacity | 24 samples |
| Temperature Control Range | Ambient to 200 °C |
| Dual-Zone Digestion Temperatures | 165 °C / 123 °C ±0.5 °C |
| Digestion Times | 10 / 30 min |
| Chloride Interference Tolerance | Cl⁻ < 1200 mg/L (standard), < 4000 mg/L (with correction) |
| Photometric Stability | ≤±0.005 A / 20 min |
| Data Storage | 5 million records |
| Preloaded Calibration Curves | 680 |
| Dimensions | 360 × 280 × 100 mm |
| Net Weight | 3 kg |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Interface | USB |
| Optional Connectivity | IoT-enabled remote monitoring (PC & mobile) |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SH-3000A |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry |
| Wavelength | 610 nm ± 1 nm (COD channel) |
| COD Range | 5–6000 mg/L (segmented) |
| Ammonia Nitrogen | 0.01–100 mg/L |
| Total Phosphorus | 0.001–16 mg/L |
| Total Nitrogen | 0.01–100 mg/L |
| Turbidity | 0–200 NTU |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| LOD (COD) | 0.1 mg/L |
| Measurement Time | 25–30 min (including digestion) |
| Batch Capacity | 24 or 30 samples |
| Digestion Temp | 165 °C / 123 °C ± 0.5 °C |
| Digestion Time | 10 / 30 min |
| Chloride Tolerance | ≤ 1200 mg/L (standard), up to 4000 mg/L (with chloride compensation) |
| Photometric Stability | ≤ 0.001 A / 10 min |
| Dimensions | 435 × 330 × 170 mm |
| Weight | 3 kg |
| Power Supply | AC 220 V, 50 Hz |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SH-8 |
| Instrument Type | Laboratory-Grade Portable Analyzer |
| Measurement Principle | Dual-Optical-Path Digital Electrode-Based Optical Absorption (Reagent-Free) |
| Measurement Range | 0.15–300 mg/L COD |
| Accuracy | ≤ ±8% |
| Repeatability | ≤ ±5% |
| Limit of Detection | 0.01 mg/L |
| Measurement Time | 1 minute per sample |
| Batch Capacity | 12 / 16 / 25 / 30 / 35 / 56 samples |
| Display | 3.1-inch amber-tinted LCD |
| Sensor Dimensions | Ø33.7 mm × 176.5 mm (excluding cable) |
| Housing Materials | POM, Nylon, and 316 Stainless Steel |
| Device Dimensions | 200 × 100 × 35 mm |
| Net Weight | 0.3 kg |
| Operating Temperature | 5–45 °C |
| Max Pressure Rating | 1 bar |
| Calibration | Single-point user calibration |
| Power Supply | DC 5 V ±5%, <50 mA |
| Battery | Integrated rechargeable lithium-ion battery |
| Data Storage | Built-in microSD card slot for local data logging and retrieval |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Measurement Principle | Potassium Dichromate Digestion + Spectrophotometry |
| Wavelength Range | 400–750 nm |
| COD Range | 5–12,000 mg/L (multi-range) |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| LOD (COD) | 0.1 mg/L |
| Digestion & Analysis Time | 10–30 min |
| Batch Capacity | 12 samples per run |
| Data Storage | 5 million records |
| Calibration Curves | 119 preloaded |
| Chloride Interference Tolerance | Cl⁻ < 1200 mg/L (standard), up to 4000 mg/L (with correction) |
| Digestion Temp | 165 °C or 123 °C ±0.5 °C |
| Power Supply | AC 220 V ±10%, 50 Hz (adapter) / DC 24 V (rechargeable battery) |
| Dimensions | 440 × 350 × 190 mm |
| Weight | 5 kg |
| Brand | ShengAohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop |
| Measurement Principle | Rapid Digestion Method (HJ/T 399–2007) |
| Wavelength | 420 nm / 610 nm ±1 nm |
| COD Range | 50–1000 mg/L |
| Accuracy | ±5% |
| Repeatability | ±5% |
| LOD | 50 mg/L |
| Analysis Time per Batch | 10–20 min |
| Sample Throughput | 20 samples/batch |
| Optical Stability | ≤±0.002 Abs/h |
| Photometric Repeatability | 0.2% T |
| Absorbance Reproducibility | ±0.003 Abs |
| Liquid Dispensing Accuracy | ≤1% |
| Heating Control | Adaptive PID at 165 °C ±1 °C |
| Cooling | High-airflow silent fan |
| Dimension (Cabinet) | 830 × 800 × 1780 mm |
| Dimension (Desktop) | 830 × 700 × 700 mm |
| Weight | ~60 kg |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Rated Power | ~780 W |
| Operating Environment | 0–50 °C, 10–90% RH |
| Positioning Precision (Robotic Arm) | 0.1 mm |
| Display | 8-inch IPS capacitive touchscreen |
| Light Source | Imported cold-light LED (100,000 h lifetime) |
| Optical Path | Post-dispersion design |
| Data Interface | IoT-enabled cloud upload (ShengAohua Cloud Data Service) |
| Compliance | HJ/T 399–2007, HJ 924–2017, GB/T 32208–2015, GB/T 12519–2010 |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SH-9007(V11) |
| Instrument Type | Portable |
| Measurement Principle | Potassium Dichromate Digestion Method (Portable) |
| Wavelength Range | 400–860 nm |
| COD Range | 10–100 mg/L and 30–5000 mg/L (dual-range) |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| LOD | 0.01 mg/L |
| Analysis Time | 15 min per batch |
| Batch Capacity | 5 samples |
| Brand | Shimadzu |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | COD-4200 |
| Instrument Type | Online Analyzer |
| Measurement Principle | High-Temperature Potassium Dichromate Digestion with Photometric Detection |
| Standard Range | 30–4000 mg/L COD |
| Accuracy | ±10% at ≥100 mg/L |
| Repeatability | ≤±5% |
| Zero Drift | ±5 mg/L |
| Span Drift | ≤±5% |
| Resolution | <1 mg/L |
| Minimum Measurement Cycle | 20 minutes |
| Calibration Modes | Manual and Automatic |
| Communication Interfaces | RS-232, 4–20 mA (bidirectional) |
| Power Supply | 220 VAC ±10%, 50 Hz ±5% |
| Power Consumption | ~100 VA |
| Dimensions | 500 mm × 420 mm × 1550 mm |
| Weight | ~90 kg |
| Brand | Shimadzu |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Status | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | COD-4200 |
| Price Range | USD 21,000 – 28,000 (est.) |
| Instrument Type | Online Analyzer |
| Measurement Principle | High-Temperature Acidic Potassium Dichromate Digestion with Photometric Detection |
| Accuracy | ±10% for concentrations ≥100 mg/L |
| Minimum Measurement Cycle | 20 minutes |
| Measuring Range | 30–4000 mg/L COD (extended range available upon consultation) |
| Repeatability | ≤±5% |
| Zero Drift | ±5 mg/L |
| Span Drift | ≤±5% |
| Resolution | <1 mg/L |
| Output Signals | RS-232, 4–20 mA (bidirectional communication & remote control supported) |
| Power Supply | 220 VAC ±10%, 50 Hz ±5% |
| Power Consumption | ~100 VA |
| Dimensions | 500 × 420 × 1550 mm (W × D × H) |
| Weight | ~90 kg |
| Brand | Shimadzu |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | UVM-4020 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Weighted Multi-Wavelength Ultraviolet Absorption Spectrophotometry (243 nm, 254 nm, 265 nm, 275 nm, 290 nm) |
| Calibration | Automatic zero/span calibration with standard solutions (optional) |
| Measurement Ranges | 0–400 SAC, 0–200 SAC, 0–80 SAC |
| Cycle Time | 1 min (minimum), adjustable from 10 to 720 min |
| Output Parameters | COD, BOD, TOC, SAC |
| Preloaded Conversion Formulas | 30 built-in empirical equations |
| Auto-Cleaning Interval | User-configurable timer-based internal tubing flush |
| Power Supply | 220 V ±10 V, 50/60 Hz, ~100 VA |
| Operating Environment | 5–40 °C, ≤90% RH (non-condensing, non-freezing) |
| Sample Flow Rate | 1–2 L/min |
| Max. Sample Pressure | ≤50 kPa |
| Installation | Indoor only |
| Brand | Shimadzu |
|---|---|
| Origin | Jiangsu, China |
| Distributor Status | Authorized Distributor |
| Model | UVM-4020 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Weighted Multi-Wavelength Ultraviolet Absorption Spectrophotometry (UV-Vis) |
| Wavelengths | 243 nm, 254 nm, 265 nm, 275 nm, and 290 nm (simultaneous acquisition with spectral weighting) |
| Measurement Ranges | 0–400 SAC, 0–200 SAC, 0–80 SAC |
| Cycle Time | Minimum 1 minute |
| Power Supply | 220 V ±10 V, 50/60 Hz, ~100 VA |
| Operating Environment | 5–40 °C, ≤90% RH (non-condensing, non-freezing) |
| Sample Flow Rate | 1–2 L/min |
| Sample Pressure | ≤50 kPa |
| Calibration | Automated zero/span calibration (optional reagent-free standard solutions) |
| Conversion Functions | Simultaneous real-time calculation of COD, BOD, TOC, and SAC using 30 built-in empirical correlation models |
| Cleaning | Scheduled internal tubing purge via user-defined intervals |
| Installation | Indoor wall- or rack-mounted configuration |
| Compliance | Designed for continuous operation under ISO 5667-3, ASTM D5540, and EPA Method 415.3-aligned monitoring workflows |
| Brand | Sipo Environment |
|---|---|
| Origin | Tianjin, China |
| Model | DR8800 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Detection Principle | Rapid Closed-Vessel Catalytic Digestion Coupled with Dual-Wavelength Photometry (440 nm & 600 nm) |
| Detection Range | 10–250 mg/L (Low Range), 100–2500 mg/L (High Range) |
| LOD | 3 mg/L |
| Accuracy | ±5% (Low Range), ±4% (High Range) |
| Repeatability | RSD ≤2% (5–100 mg/L) |
| Chloride Interference Tolerance | ≤2000 mg/L Cl⁻ |
| Wavelengths | 440 nm (low-range), 600 nm (high-range) |
| Optical Stability | ≤0.001 A/60 min |
| Data Storage | 9999 measurements, 99 calibration curves |
| Power Supply | 220 V AC, 50 Hz |
| Operating Temperature | 5–40 °C |
| Dimensions (DR8800) | Not specified |
| Weight (DR8800) | Not specified |
| Complies With | HJ/T 399–2007 |
| Brand | Sonnen |
|---|---|
| Origin | Shanghai, China |
| Model | T13 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Potentiometric/Colorimetric Titration with K₂Cr₂O₇ Digestion (Digestion Performed Externally) |
| Optical Detection | 16-bit RGB Trichromatic Color Sensor with Dual-Channel Synthesis Algorithm |
| Titration Resolution | 1/60,000-step Motorized Burette Drive |
| Minimum Dispensing Volume | 10 µL |
| Accuracy | ±0.2% (at 20 mL titrant delivery) |
| Fill/Empty Cycle Time | 30 s at 100% fill rate |
| Host Dimensions (L×W×H) | 200 × 200 × 260 mm |
| Titration Module Dimensions (L×W×H) | 70 × 200 × 160 mm |
| Net Weight (Standard Configuration) | ~4.3 kg |
| Interface | Bluetooth 5.0 (up to 12 modules), Wi-Fi 802.11n, RS-232/USB-C for printer output |
| Display | High-brightness capacitive touchscreen with bilingual (English/Chinese) GUI and 12 customizable graphical soft-keys |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Imported |
| Model | AQ4001 COD |
| Instrument Category | Portable |
| COD Range | 0–150 / 0–1500 / 0–15000 mg/L |
| Detection Limits | 1.5 / 15 / 150 mg/L |
| Detector | Photodiode |
| Wavelength Selection | 420, 520, 580, 610 nm (auto-selected) |
| Cuvette Sizes | 13 mm, 16 mm, 24 mm |
| Units | mg/L, ppm, Absorbance, % Transmittance |
| Ingress Protection | IP67 |
| Digestion Unit | AQUAfast COD165 |
| Power Supply | 100–220 V, 50–60 Hz |
| Heating Power | 400 W |
| Weight | 3.6 kg |
| Dimensions (L×W×H) | 155 × 95 × 275 mm |
| Temperature Control | PID microelectronic controller |
| Sensor | Pt100 Class A |
| Digestion Temperatures | 100, 120, 150, 160, 165 °C |
| Digestion Times | 30, 60, 120 min or continuous |
| Ramp Time | 10 min (20 → 165 °C) |
| Temp. Stability | ±0.5 °C |
| Temp. Accuracy | ±1 °C |
| Digestion Well Diameter | 16 mm |
| Number of Wells | 25 |
| Over-Temperature Protection | Yes |
| Brand | Thermo Fisher |
|---|---|
| Origin | Shanghai, China |
| Model | Orion™ 3106 COD |
| Instrument Type | Online Analyzer |
| Measurement Principle | Potassium Dichromate Digestion with Photometric Detection |
| Wavelength | 450 nm |
| Measurement Ranges | 20–200–800–2000 mg/L COD |
| Accuracy | ±5 mg/L (for values <50 mg/L) or ±10% (for values >50 mg/L) |
| Repeatability | ≤5% |
| Limit of Detection (LOD) | 4 mg/L |
| Cycle Time | 40 min per sample |
| Sample Throughput | 500 samples per batch |