Residual Chlorine and Chlorine Dioxide Analyzer
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| [Brand | LeiCi |
|---|---|
| Origin | Shanghai, China |
| Model | DGB-402F |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measurable Parameters | Residual Chlorine, Total Chlorine |
| Range | 0–5 mg/L |
| Accuracy | ±0.05 mg/L (≤1 mg/L) |
| Repeatability | ≤2.0% |
| Resolution | Concentration: 0.001 mg/L |
| Absorbance | 0.001 ABS |
| LOD | ≤0.02 mg/L |
| Wavelength | 515 nm LED |
| Calibration | 1–3 point user-defined or factory-default curves |
| Data Storage | 200 entries per parameter |
| Protection Rating | IP65 |
| Operating Temperature | 5–35 °C |
| Relative Humidity | ≤85% RH |
| Power | Rechargeable Li-ion battery |
| Dimensions | 85 × 230 × 50 mm |
| Weight | ~0.5 kg] |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-Made) |
| Model | DGB-403F |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry (515 nm & 420 nm LED Sources) |
| Measured Parameters | Residual Chlorine (LR/HR), Total Chlorine (LR/HR), Chlorine Dioxide (LR/HR), Monochloramine (LR/HR), Chlorite, Chlorate, Hydrogen Peroxide |
| Residual Chlorine HR Range | 0.20–12.0 mg/L |
| Accuracy (Residual Cl₂ HR) | ±0.1 mg/L or ±5% |
| Repeatability (Residual Cl₂ HR) | ≤1% |
| Resolution (Residual Cl₂ HR) | 0.1 mg/L |
| LOD (Residual Cl₂ HR) | ≤0.2 mg/L |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DGB-403F |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measurable Parameters | Residual Chlorine (LR/HR), Total Chlorine (LR/HR), Chlorine Dioxide (LR/HR), Monochloramine (LR/HR), Chlorite, Chlorate, Hydrogen Peroxide |
| Residual Chlorine HR Range | 0.20–12.0 mg/L |
| Accuracy (Residual Cl₂ HR) | ±0.1 mg/L or ±5% |
| Repeatability (Residual Cl₂ HR) | ≤1% |
| Resolution (Residual Cl₂ HR) | 0.1 mg/L |
| LOD (Residual Cl₂ HR) | ≤0.2 mg/L |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SJG-791 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor |
| Measured Parameter | Free Residual Chlorine |
| Range | 0.00–20.00 mg/L |
| Accuracy | ±10% (≥0.5 mg/L) or ±0.05 mg/L (<0.5 mg/L) |
| Resolution | 0.01 mg/L (Cl₂), 0.01 pH, 0.1 °C |
| pH Range | 0.00–14.00 pH |
| Temperature Range | 0.0–60.0 °C |
| pH Accuracy | ±0.05 pH |
| Temp Accuracy | ±0.5 °C |
| Electronic Unit Stability | ±1% FS/24 h |
| 90% Response Time | 2 min |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 166 × 166 × 110 mm |
| Weight | 2 kg |
| Output | Dual isolated 4–20 mA DC outputs (configurable for Cl₂ or pH) |
| Data Storage | 2000 measurement records |
| Auto Compensation | pH and temperature compensation for residual chlorine |
| Alarm Function | Configurable high/low limits with hysteresis |
| Power Failure Protection | Yes |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | SJG-791B |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor Method |
| Measured Parameters | Residual Chlorine / Total Chlorine / Chlorine Dioxide / Ozone (selectable single parameter) |
| Measurement Range | 0.005–2.000 mg/L (standard range) |
| Accuracy | ±1% FS (for residual chlorine with DCS4H-M0c electrode) |
| Resolution | 0.001 mg/L |
| Output Signal | Isolated 4–20 mA DC (max. load 600 Ω) |
| Digital Interface | RS-485 |
| Temperature Compensation | Automatic (5–40 °C sample range) |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Installation | Wall-mounted console with flow-through sensor housing |
| Sensor Cable Length | 5 m (standard) |
| Sample Flow Rate | 0.3–0.5 L/min |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-791B |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor Method |
| Measurable Parameters | Residual Chlorine / Total Chlorine / Chlorine Dioxide / Ozone (user-selectable single parameter) |
| Measurement Range | 0.005–2.000 mg/L (standard range) |
| Accuracy | ±1% FS (for residual chlorine with DCS4H-M0c electrode) |
| Resolution | 0.001 mg/L |
| Temperature Compensation | Automatic (5–40 °C sample range) |
| Output | Isolated 4–20 mA (600 Ω max load), RS-485 Modbus RTU |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Installation | Wall-mounted analyzer + flow-through sensor |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM Manufacturer |
| Regional Classification | Domestic (China) |
| Model | SJG-792 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | 0.00–5.00 mg/L |
| Accuracy | ±5% (for values >1 mg/L) or ±0.05 mg/L (for values ≤1 mg/L) |
| Repeatability | ±0.025 mg/L (≤1 mg/L) |
| Resolution | 0.01 mg/L |
| Detection Limit | ≤0.05 mg/L |
| Display | Dot-matrix LCD |
| Data Storage | Up to 700 records with SD card export |
| Output | Isolated 4–20 mA DC (configurable span), RS-232/RS-485 (Modbus RTU) |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz ±1% |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-792 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor Method |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | (0.00–5.00) mg/L |
| Accuracy | ±5% (for values >1 mg/L) or ±0.05 mg/L (for values ≤1 mg/L) |
| Repeatability | ±0.025 mg/L (≤1 mg/L) |
| Resolution | 0.01 mg/L |
| Limit of Detection (LOD) | ≤0.05 mg/L |
| Display | Dot-matrix LCD |
| Data Storage | Up to 700 records with SD card export |
| Output | Isolated 4–20 mA DC (configurable span), RS-232 or RS-485 (Modbus RTU) |
| Ingress Protection | IP65 |
| Power Supply | AC (220 ± 22) V, (50 ± 0.5) Hz |
| Calibration Options | Factory pre-loaded calibration curves, manual zero + up to two-point span calibration, in-process calibration support |
| Alarm Functions | Programmable high/low concentration thresholds |
| Diagnostics | Built-in self-diagnostic system |
| Power Failure Protection | Non-volatile memory retention |
| Brand | Lianhua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measurable Parameters | Free Chlorine, Total Residual Chlorine, Chlorine Dioxide |
| Range | Free Chlorine: 0–15 mg/L |
| Total Residual Chlorine | 0–15 mg/L |
| Chlorine Dioxide | 0–5 mg/L |
| Accuracy | ±10% |
| Repeatability | ≤±5% |
| Display | 3.5-inch color TFT screen with dial-style UI |
| Calibration | Built-in optical calibration & 15 preloaded calibration curves |
| Compliance | HJ 586–2010, GB/T 5750.11–2006 |
| Brand | Merck |
|---|---|
| Origin | Germany |
| Model | Spectroquant® Move |
| Instrument Type | Portable |
| Measurement Principle | Absorption Photometry (LED-based, Fixed-Wavelength) |
| Measured Parameters | Residual Chlorine, Chlorine Dioxide, and Other Water Quality Parameters (via Preloaded Methods) |
| Range | 0.02–6 mg/L |
| Accuracy | ±1 nm (wavelength), ±3% FS (absorbance, 20–25°C) |
| Repeatability | ≤3% RSD |
| Resolution | 0.01 A (absorbance), 1 mAbs (instrumental) |
| LOD | 0.0035 mg/L |
| Wavelength | 530 nm |
| Light Source | High-Stability LED |
| Optical Path | Fixed 10-mm Cuvette Chamber |
| Display | LCD with Backlight |
| Keyboard | Chemical-Resistant Membrane |
| Power | 4 × AAA batteries (up to 17 h operation or ~5,000 measurements) |
| Weight | 260 g |
| Dimensions (H × W × D) | 155 × 75 × 35 mm |
| Carry Case Dimensions | 340 × 270 × 80 mm |
| Ingress Protection | IP68 |
| Data Storage | 16 measurement results |
| Data Transfer | Optional Infrared Interface (Spectroquant® IR Adapter) |
| Brand | Palintest |
|---|---|
| Origin | United Kingdom |
| Model | Kemio Disinfection |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Sensor Technology |
| Measurable Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Chlorite, Peracetic Acid (PAA), Low- and High-Range Options Available |
| IP Rating | IP67 |
| Dimensions | 156 × 180 × 95 mm |
| Weight | 1012 g |
| Operating Temperature | 0–50 °C |
| Battery | Rechargeable NiMH, 2300 mAh |
| Data Storage | 1000 results on-device, 10,000 via PC software |
| Interface | Micro-USB |
| Compliance | Designed for routine compliance with WHO, EPA, EU Drinking Water Directive, and ISO 7888 / ISO 8208 standards |
| Brand | Palintest |
|---|---|
| Origin | United Kingdom |
| Model | Lumiso Chlorine |
| Instrument Type | Portable Photometer |
| Measurement Principle | DPD Colorimetric Method (ASTM D1253, ISO 7393-2) |
| Measured Parameter | Free and Total Residual Chlorine |
| Wavelength | 530 nm |
| Optical Accuracy | ±1% T |
| Detection Range | Free/Total Cl₂: 0.01–5.00 mg/L (0.01 mg/L resolution) |
| High-Range Total Cl₂ | 1–250 mg/L (0.01 mg/L resolution) |
| Display | 226 × 138 pixel backlit LCD with icon-based UI |
| Data Storage | 50 test records (including parameter, date, time, operator ID) |
| Connectivity | USB port + QR-code-enabled memory retrieval |
| Enclosure Rating | IP67 |
| Power Supply | 3 × AA batteries |
| Dimensions | 163 × 70 × 45 mm |
| Weight | 275 g |
| Calibration Verification | Integrated absorbance check using certified reference filters |
| Compliance | Designed for GLP-compliant field and laboratory use |
| Brand | Palintest |
|---|---|
| Origin | United Kingdom |
| Model | Lumiso RW7 |
| Instrument Type | Portable Photometer |
| Measurement Principle | DPD-based Spectrophotometry |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Total Hardness, Ozone, Color, pH, Permanganate Index (COD<sub>Mn</sub>) |
| Wavelengths | 465 nm & 575 nm |
| Optical Bandwidth | 10 nm |
| Wavelength Accuracy | ±2 nm |
| Display | Backlit LCD |
| Data Storage | 10 recent results |
| Power Supply | 2 × AA batteries |
| Operating Temperature | 0–50 °C |
| Enclosure Rating | IP67 |
| Dimensions | 150 × 65 × 42 mm |
| Weight | 200 g |
| Brand | Rikari |
|---|---|
| Origin | Japan |
| Model | RC-3F |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameter | Free Chlorine (as Cl₂) |
| Range | 0–500 mg/L |
| Accuracy | ±2% of reading |
| Repeatability | ±2% RSD |
| Resolution | 1 mg/L |
| LOD | 1 mg/L |
| Power | 4 × AAA alkaline batteries (DC 6 V) |
| Operating Temperature | 5–35 °C |
| Dimensions | 75 × 180 × 38 mm (W × D × H) |
| Sample Volume | 5 mL |
| Reagent | HOCl-K-1 powder packet (single-use, pre-dosed) |
| Display | 3-digit LCD |
| Auto-off | 5 seconds after measurement |
| Hold function | Yes |
| Over-range alert | Flashing display above 550 mg/L |
| Brand | Rikari |
|---|---|
| Origin | Japan |
| Model | RC-V7 |
| Instrument Type | Portable |
| Measurement Principle | UV-LED Absorption Photometry (Deep UV, 254 nm) |
| Measured Parameter | Residual Chlorine (as Cl₂), Chlorine Dioxide (ClO₂) |
| Range Mode 1 | 0–1000 mg/L |
| Range Mode 2 | 0–500 mg/L |
| Accuracy | ±1% of reading |
| Repeatability | ±2% (under controlled conditions) |
| Resolution | 1 mg/L |
| LOD | 1 mg/L |
| Operating Temperature | 1–35 °C |
| Power Supply | 4 × AA alkaline batteries (DC 6 V) |
| Weight | ~310 g |
| Brand | Rikori |
|---|---|
| Origin | Japan |
| Model | H2O2-V7 |
| Instrument Type | Portable |
| Measurement Principle | UV Absorption Photometry (254 nm LED source) |
| Measurement Parameter | Hydrogen Peroxide (H₂O₂) |
| Range | 0–4000 mg/L (ppm) |
| Accuracy | ±2% of full scale |
| Repeatability | ±2% of full scale |
| Resolution | 1 mg/L |
| Detection Limit | 0.5 mg/L |
| Response Time | ≤10 s |
| Operating Temperature | 1–35 °C |
| Power Supply | DC 6 V |
| Dimensions | 88 × 174 × 65 mm |
| Weight | 310 g |
| Compliance | Designed for industrial process monitoring per ISO 7027 principles (UV absorbance-based quantification), compatible with GLP-aligned data recording workflows |
| Brand | RuiXin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-CL |
| Instrument Type | Portable |
| Measurement Parameter | Residual Chlorine |
| Detection Range | 0.05–10.00 mg/L |
| Accuracy | ≤5% |
| Repeatability | ≤2% |
| Resolution | 0.01 mg/L |
| Limit of Detection (LOD) | 0.02 mg/L |
| Display | 4.3-inch color TFT touchscreen |
| Absorbance Range | 0.000–4.000 |
| Transmittance Range | 0.00–100.00% |
| Transmittance Resolution | 0.01% |
| Absorbance Resolution | 0.001 |
| Photometric Accuracy | ±2.0% (transmittance) |
| Photometric Repeatability | ≤0.2% |
| Baseline Stability | ≤0.3% (over 3 min) |
| Communication Interface | USB |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Li-ion battery |
| Integrated Thermal Printer | Yes |
| Data Storage & Recall | Yes |
| Data Export Capability | Yes |
| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-XD402 |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measurable Parameters | Residual Chlorine, Total Chlorine, Chlorine Dioxide, Ozone, Dissolved Oxygen |
| Range | 0.05–5.00 mg/L (Cl₂, ClO₂, O₃, DO) |
| Accuracy | ±3% FS |
| Repeatability | ±0.05 mg/L |
| Resolution | 0.01 mg/L |
| LOD | 0.05 mg/L |
| Absorbance Range | 0.000–4.000 (Resolution: 0.001) |
| Transmittance Range | 0.00–100.00% (Resolution: 0.01%) |
| Photometric Accuracy | ±2.0% T |
| Photometric Repeatability | ≤0.2% T |
| Stability | ≤0.3% T (3 min) |
| Display | 4.5-inch color TFT touch LCD |
| Connectivity | USB interface |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Li-ion battery |
| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-HCL |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric (DPD Method) |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | 0–10 mg/L |
| Accuracy | ±5% |
| Repeatability | ≤2% |
| Resolution | 0.01 mg/L |
| Detection Limit | 0.02 mg/L |
| Absorbance Range | 0.000–4.000 |
| Absorbance Resolution | 0.001 |
| Transmittance Accuracy | ±2.0% |
| Transmittance Repeatability | ≤0.2% |
| Stability | ≤0.5% (3 min) |
| Display | 4.3″ TFT color touchscreen |
| Data Output | Embedded thermal printer, USB interface |
| Power Supply | AC 220 V / Rechargeable Li-ion battery |
| Compliance | Designed for field-deployable water quality testing per standard methods including APHA 4500-Cl G (DPD), ISO 7393-2, and EPA Method 334.0 |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Instrument |
| Model | CHCL-220 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | DPD Colorimetric Method (Standard EPA 330.5 / ISO 7393-2) |
| Measured Parameter | Free Residual Chlorine |
| Measurement Range | 0.02–10.00 mg/L (dual-range: 0.02–2.00 mg/L and 2.00–10.00 mg/L) |
| Accuracy | ≤ ±3% of Full Scale (F.S.) |
| Repeatability | ≤ 3% RSD |
| Detection Limit | 0.02 mg/L |
| Resolution | 0.01 mg/L |
| Dimensions | 266 mm × 220 mm × 130 mm |
| Weight | < 1.0 kg |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤ 85% RH (non-condensing) |
| Power Supply | AC 220 V ± 10%, 50/60 Hz |
| Housing Material | ABS plastic with chemical resistance |
| Optical System | High-intensity LED light source (100,000-hour lifetime), narrow-band interference filters, fixed optical path |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Model | CHCL-222 |
| Measurement Parameters | Residual Chlorine, Total Chlorine |
| Measurement Range | 0.02–10.00 mg/L (dual-range: 0.02–2.00 mg/L and 2.00–10.00 mg/L) |
| Accuracy | ≤ ±3% of Full Scale |
| Repeatability | ≤ 3% RSD |
| Optical Stability | Absorbance drift < 0.002 A within 20 min |
| Resolution | 0.01 mg/L |
| LOD | 0.02 mg/L |
| Power Supply | 4 × AA batteries |
| Dimensions | 80 × 230 × 55 mm |
| Weight | 500 g |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤ 85% RH |
| Protection Rating | IP65 |
| Data Storage | 199 test records with timestamp (YYYY-MM-DD HH:MM:SS), plus 20 programmable calibration curves |
| Optical System | Cold LED light source with narrow-band interference filters |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | CHCL-222 |
| Instrument Type | Portable |
| Measurement Parameter | Residual Chlorine |
| Measurement Range | 0.02–10.00 mg/L (dual-range: 0.02–2.00 mg/L and 2.00–10.00 mg/L) |
| Accuracy | ≤ ±3% FS |
| Repeatability | ≤ 3% |
| Resolution | 0.01 mg/L |
| LOD | 0.02 mg/L |
| Optical Stability | Absorbance drift < 0.002 A within 20 min |
| Dimensions | 80 × 230 × 55 mm |
| Weight | 500 g |
| Operating Temperature | 5–40 °C |
| Power Supply | Rechargeable Li-ion battery (integrated) |
| Display | LCD with backlight |
| Data Storage | 500 measurements |
| Calibration Curves | Up to 50 built-in standard curves |
| Connectivity | USB interface |
| Enclosure Rating | IP65 |
| Housing Material | Molded ABS |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | CHCL-223 |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Method (Standardized for ClO₂) |
| Measured Parameter | Chlorine Dioxide (ClO₂) |
| Measurement Range | 0.05–20.00 mg/L |
| Accuracy | ≤ ±3% of Full Scale (F.S.) |
| Repeatability | ≤ 3% RSD |
| Resolution | 0.01 mg/L |
| Detection Limit | 0.05 mg/L |
| Display | Backlit LCD (128 × 64 pixels) |
| Power Supply | 4 × AA alkaline batteries (operational life ≥6 months in standby) |
| Dimensions | 80 × 230 × 55 mm |
| Weight | 500 g |
| Environmental Operating Conditions | 5–40 °C, ≤85% RH (non-condensing) |
| Enclosure Rating | IP65 |
| Data Storage | 199 measurement records with timestamp (YYYY-MM-DD hh:mm:ss), absorbance, transmittance, and calibration curve ID (up to 20 curves) |
| Optical System | LED cold light source with narrow-band interference filter (center wavelength 420 nm), fixed optical path length (10 mm), drift <0.001 A/30 min |
| Memory Protection | Non-volatile flash memory with auto-save and power-fail recovery |
| Housing Material | Molded ABS polymer with chemical-resistant surface finish |
| Brand | Shenchanghong |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Benchtop Laboratory Analyzer |
| Model | LTWS-1000 |
| Measurement Principle | Colorimetric Method (DPD-based) with Fixed-Wavelength Photometry |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide (ClO₂), and Optional Bromine |
| Range | 0.00–100.00 mg/L as Cl₂ |
| Accuracy | ≤ ±5% of Full Scale (F.S.) |
| Repeatability | ≤ 3% RSD |
| Resolution | 0.01 mg/L |
| Detection Limit | ≤ ±3% F.S. |
| Optical Stability | Absorbance drift < 0.002 A within 20 min |
| Dimensions | 266 × 200 × 130 mm |
| Weight | 1.0 kg |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH (non-condensing) |
| Power Supply | 4 × AA alkaline batteries (no AC adapter included) |
| IP Rating | IP65 |
| Data Storage | 199 measurement records with timestamp (YYYY-MM-DD hh:mm:ss), plus 20 programmable calibration curves |
| Display | Backlit LCD, 128 × 64 pixels |
| Housing Material | Molded ABS with chemical-resistant finish |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop Analyzer |
| Model | 6B-50YL(V10) |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measured Parameter | Free Residual Chlorine |
| Range | 0–3 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| Resolution | 0.001 mg/L |
| Detection Limit | 0 mg/L |
| Display | Large Backlit LCD with Chinese Menu Interface |
| Light Source | Cold LED with Narrow-Band Interference Filter (100,000 hr lifetime) |
| Calibration Curves | Up to 5 User-Editable Stored Curves |
| Data Storage | 5,000,000 Measurement Records |
| Measurement Time | ≤ 60 s per Sample |
| Brand | ShengAohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | SH-50L |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | 0–3 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| Resolution | 0.001 mg/L |
| Detection Limit | 0.001 mg/L |
| Optical Stability | ≤ ±0.005 A/20 min |
| Power Supply | Rechargeable Lithium-ion Battery (7-day field operation) + AC/DC Adapter |
| Brand | SkyRay Instrument |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | WM-3000P |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Spectrophotometry (DAP/DPD-based for chlorine species |
| Measured Parameters | Free Chlorine, Total Chlorine, Chemical Oxygen Demand (COD) |
| Measurement Range | 0.02–1000 mg/L |
| Accuracy | ≤ ±5% of reading |
| Repeatability | ≤ ±5% RSD |
| Resolution | 0.01 ppm |
| Limit of Detection | 0.01 ppm |
| Power Supply | Two 1.5 V AA batteries (72 h continuous operation) or 220 VAC-to-3 VDC adapter |
| Data Storage | Internal non-volatile memory with timestamped records (date, time, parameter ID, sample ID, result) |
| Ingress Protection | IP41 (dust-protected, vertically dripping water resistant) |
| Compliance | Designed to support ASTM D1253, ISO 7393-2 (chlorine), and ISO 6060 (COD) methodology alignment |
| Brand | Supelco |
|---|---|
| Origin | Germany |
| Model | Move DC |
| Instrument Type | Portable |
| Measurement Principle | DPD-based Spectrophotometry |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone, Cyanuric Acid, pH |
| Range | 0.02–4.5 mg/L (for chlorine species and ozone) |
| Accuracy | ±3% of reading |
| Repeatability | ±0.02 mg/L |
| Absorbance Resolution | 0.01 A |
| LOD | 0.02 mg/L |
| Optical System | LED light source, interference filter, photodiode detector, transparent cuvette chamber |
| Wavelength | 530 nm |
| Display | LCD |
| Power | 4 × AAA batteries (up to 17 h operation or ~5,000 measurements) |
| Weight | 260 g |
| Dimensions (instrument) | 155 × 75 × 35 mm |
| Enclosure Rating | IP68 |
| Memory Capacity | 16 measurement records |
| Data Transfer | Optional Spectroquant® IRiM infrared interface |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Imported Instrument |
| Model | AquaChlor |
| Pricing | Upon Request |
| Measurement Principle | Amperometric Electrode (Gold Cathode / Silver Anode with Teflon Membrane) |
| Range | 0–5 ppm and 0–20 ppm |
| Resolution | 0.005 ppm |
| Accuracy | ±2% of reading or ±10 ppb, whichever is greater |
| Response Time (t₉₀) | 90 seconds |
| Units | ppm (Cl₂), °C / °F |
| Calibration | Single-point air calibration |
| Compensation | Automatic temperature compensation |
| Operating Temperature | 0–45 °C |
| Max Pressure | 15 PSIG (1.03 bar) at 40 °C |
| Flow Rate | 200–250 mL/min |
| Housing Material | Noryl |
| Electrode Materials | Gold cathode, silver anode |
| Selective Membrane | PTFE (Teflon®) |
| Communication Protocols | Modbus RTU, DeviceNet, USB, RS-232, CANopen |
| Data Interface | AV38 Local Display Unit or DataStick Network-Ready Module |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Model | Chlorine XP |
| Instrument Type | Online Analyzer |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Free Chlorine, Total Chlorine, Combined Chlorine |
| Range | 0.01–10 ppm |
| Accuracy | ±3% of reading |
| Repeatability | ±5% |
| Resolution | 0.01 ppm |
| Detection Limit | 0.01 ppm |
| Reagent Consumption | 0.03 mL per analysis |
| Reagent Shelf Life | 24 months (unopened) |
| Environmental Rating | IP65 (NEMA 4) |
| Communication Interface | RS-485 |
| Certifications | EPA Compliant, CSA Certified, ISO 9001 Certified |
| Operating Temperature Range | Supports sample temperatures down to 4 °C |