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Shanghai Yifeng Instrumentation & Equipment Co., Ltd.

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BrandTriOS
OriginGermany
ModeleCHEM ClO₂
Instrument TypePortable
Measurement PrincipleElectrochemical Amperometric (3-Electrode Potentiostatic)
MeasurandChlorine Dioxide (ClO₂)
Range0–2 mg/L (ppm), optionally 0–20 mg/L
Accuracy±0.4 mg/L (0–2 mg/L range)
Temp. CompensationIntegrated Pt100
Response Time (T90)~60 s
Housing MaterialPVC-U & Stainless Steel 1.4571
Dimensions205 mm × 25 mm
Weight0.12 kg
Output InterfaceRS-485, Modbus RTU
Power Supply9–30 VDC, max. 56 mA
Connector8-pin M12
IP RatingIP68
Operating Temp.0–50 °C (liquid, ice-free)
Pressure Rating1 bar (static, no shock/vibration)
pH Range1–12
Conductivity Range10 µS/cm – 50 mS/cm
Cross-SensitivityCl₂ — negligible interference
Membrane Lifetime & MaintenanceWeekly verification recommended
Flow DependencyYes (optimal flow in FLC-3 flow cell: 15–30 L/h)
Calibration MethodDPD-1 spectrophotometric reference for chlorine-equivalent validation
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BrandTriOS
OriginGermany
ModeleCHEM Total Chlorine
Instrument TypeOnline Analyzer
Measurement PrincipleElectrochemical Amperometric (3-Electrode, Constant-Potential)
Measured ParameterTotal Chlorine (Free + Combined Chlorine)
Range Options0–2 mg/L and 0–20 mg/L
Accuracy>97% (as validated against DPD-4 reference method)
Repeatability±0.1 mg/L
Resolution0.001 mg/L (0–2 mg/L range), 0.01 mg/L (0–20 mg/L range)
LOD0.001 mg/L
pH Range4–12
Conductivity Range10 µS/cm – 200 mS/cm
Response Time (T90)~3 min (freshwater), ~5 min (seawater/brine)
Operating Temperature0–46 °C (sample), 0–55 °C (ambient)
Pressure Rating0.5 bar (unclamped), 3 bar (with clamp)
Output InterfaceRS-485, Modbus RTU
Power Supply9–30 VDC
Housing MaterialsPEEK, PVC-U, 1.4571 stainless steel, hydrophilic microporous membrane
Weight1.1 kg
Dimensions (L × Ø)205 mm × 25 mm
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BrandTriOS
OriginGermany
ModeleCHEM Free Chlorine
Instrument TypePortable
Measurement PrincipleElectrochemical Amperometric (3-Electrode, Membrane-Covered, Potentiostatic)
Measurement ParameterFree Chlorine
Range0–2 mg/L and 0–20 mg/L
Accuracy±0.4 mg/L (≤2 mg/L range)
Temperature CompensationIntegrated Pt100
Response Time (T90%)~2 min
Drift~1%/month
MembraneHydrophilic Microporous
Housing MaterialPVC-U + Stainless Steel 1.4571
Dimensions (L×Φ)205 mm × 25 mm
Weight0.1 kg
InterfaceRS-485, Modbus RTU
Power Supply9–30 VDC (±10%)
Connector8-pin M12
Power Consumption0.6 W
IP RatingIP68
Operating Temperature0–45 °C (liquid, ice-free)
Flow Rate Dependency15–30 L/h (in FLC-3 flow cell)
pH Range4–9 (low pH dependency: ~−10% signal change per pH unit)
Conductivity Range10–50 mS/cm
Cross-SensitivityCombined chlorine causes positive interference
Calibration MethodDPD-1 reference standard
Pressure Rating1 bar (static, no shock/vibration
Maintenance IntervalWeekly
Maintenance Time≤0.5 h/month
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BrandAQUALABO
OriginFrance
ModelSTAC CL
Instrument TypeOnline Analyzer
Measurement PrincipleUV Absorption Spectrophotometry (204–321 nm)
Measured ParametersFree Chlorine (Cl₂), Total Chlorine, Chlorine Dioxide (ClO₂), Hydrogen Sulfide (H₂S)
RangeCl₂ 4–3000 mg/L
Optical Path Length Options2 mm (Cl₂: 100–3000 ppm, H₂S LOD: 10 ppm), 5 mm (Cl₂: 40–1200 ppm, H₂S LOD: 4 ppm)
SpectrometerUV Multichannel Spectrophotometer
Sample FlowGravity-fed, max. pressure 1 bar
Channels1 standard, up to 4 programmable sample channels + blank channel
Valves2–5 solenoid valves
Detection MethodDeconvolution-based spectral analysis using reference spectra libraries
Data OutputFour 4–20 mA analog outputs + RS232C interface
Operating Temperature15–40 °C
Sample Temp.≤40 °C
Sample MatrixNatural or treated water, suspended solids <2 mm
Power Supply230 V AC, 50/60 Hz, 300 VA
Dimensions800 × 600 × 360 mm
Weight15 kg
Light SourceDeuterium lamp (rated for ≥100,000 measurements)
Memory Capacity4 spectral models + 255 measurement records
SoftwareUV PRO for model calibration, spectrum visualization, maintenance diagnostics
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BrandAQUALABO
OriginFrance
ModelS200
Instrument TypeOnline Analyzer
Measurement PrinciplePotentiometric (Gold Ring Electrode)
Measured ParameterChlorine Dioxide (ClO₂)
RangeClO₂: 0.00–5.00 mg/L
pH–2.00 to 16.00
Temperature–30.00 to 140.00 °C
Accuracy±2 % of full scale
ResolutionClO₂: 0.01 mg/L
pH0.01 unit
Temperature0.1 °C
Response Time≤30 s
Max. Operating Pressure8 bar @ 20 °C
Max. Fluid Temperature70 °C
Flow Rate40–120 L/h
Sensor MaterialGlass body with gold-ring working electrode
Enclosure RatingIP65
Power Supply110/230 VAC, ±10 %, 50/60 Hz
Power Consumption16 VA
Dimensions (Analyzer)160 × 165 × 85 mm
Weight1.1 kg
Display4×20-character backlit LCD
Analog Outputs2 × isolated 4–20 mA (max. 600 Ω load)
Digital Inputs2 (including pulse input for flow meter)
Relay Outputs3 configurable (NO/NC/C, 120–240 VAC, 2 A)
Digital Outputs2 programmable dry-contact outputs (≤12 V, 200 mA)
Control FunctionsDual independent on/off, P or PI control, pulse-pause, frequency, and continuous analog output modes
Operating Temp.–20 to 55 °C (≤90 % RH at 40 °C, non-condensing)
Storage Temp.–20 to 65 °C
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BrandAQUALABO
OriginFrance
ModelS200
Instrument TypeOnline Analyzer
Measurement PrincipleAmperometric (Gold Ring Electrode) + Potentiometric (pH Electrode)
Measured ParametersFree Residual Chlorine, Total Active Chlorine, pH, Temperature
RangeFree Chlorine: 0.00–5.00 mg/L
Total Active Chlorine0.00–5.00 mg/L
pH–2.00–16.00
Temperature–30–140 °C
Accuracy±2 % of full scale
ResolutionChlorine: 0.01 mg/L
pH0.01 unit
Temperature0.1 °C
Response Time≤30 s
Max. Operating Pressure8 bar @ 20 °C
Flow Rate40–120 L/h
Sensor MaterialGlass body / Gold working electrode
Temp. SensorPt1000
Enclosure RatingIP65
Power Supply110–230 VAC, 50/60 Hz
Power Consumption16 VA
Dimensions (W×H×D)160 × 165 × 85 mm
Weight1.1 kg
Operating Temp.–20–55 °C, ≤90 % RH (non-condensing)
Storage Temp.–20–65 °C
Analog Outputs2 × 4–20 mA (galvanically isolated, max. load 600 Ω)
Digital InterfaceModbus RTU Slave (RS485)
Relay Outputs3 configurable (NO/NC/C, 120–240 VAC, 2 A)
Digital Inputs2 (including pulse input for flow meter integration)
Control ModesOn/Off, P, PI, Pulse–Pause, Continuous (via analog output)
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