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| Brand | Hach |
|---|---|
| Origin | USA |
| Technology | Clark-type polarographic sensor (3-electrode system: gold cathode, silver anode, Ag/AgCl reference electrode) |
| Measurement Principle | Amperometric oxygen reduction at polarized cathode |
| Output Options | 4–20 mA analog (1–2 channels), RS-232/RS-485, Profibus DPV1 (optional) |
| DO Range | 0–99.99 mg/L (ppm), 0–999.9% saturation |
| Temp Range | 0.0–100.0 °C |
| Accuracy | ±0.05% of full scale |
| Stability | ±0.05% of full scale over 30 days |
| Enclosure Rating | NEMA 4X (IP66/IP65) |
| Hazardous Area Certification | Class I, Division 2, Groups A, B, C, D, T5 (PRO-D3 model only) |
| Membrane Assembly | Integrated replaceable cartridge (pre-filled membrane & electrolyte) |
| Auto-cleaning | Optional air-pulse cleaning system |
| Compliance | CE-marked |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | LDO II |
| Measurement Principle | Fluorescence Quenching (Dynamic Luminescence Lifetime Detection) |
| Range | 0.00–20.00 mg/L (ppm) |
| Accuracy | ±0.1 mg/L (<1 mg/L), ±0.2 mg/L (≥1 mg/L) |
| Repeatability | ±0.05 mg/L |
| Response Time (t₉₀) | <60 s, (t₉₅): <90 s at 20°C |
| Temperature Compensation | Automatic, NTC 30 kΩ |
| Sensor Materials | Noryl housing, 316 stainless steel body, polybutadiene rubber sensing cap |
| Operating Temp. | 0.0–50.0°C (sensor), 0.0–100.0°C (sample) |
| Max. Cable Length | 300 m |
| Interference Resistance | Immune to H₂S, heavy metals (Pb²⁺, Cd²⁺, Cu²⁺, etc.), hydrocarbons, Cl₂, CN⁻, S²⁻, and common ions (Na⁺, Ca²⁺, NH₄⁺, NO₃⁻, SO₄²⁻, Cl⁻, etc.) |
| Analog Outputs | Dual 4–20 mA or 0–20 mA, isolated |
| Environmental Rating | IP66, -20–60°C operating, -30–70°C storage, 0–95% RH non-condensing |
| Warranty | 12 months on sensor module |
| Brand | Hach |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | pHDTM Differential |
| Price | Upon Request |
| Measurement Range | pH 0–14, ORP −1500 to +1500 mV |
| Accuracy | ±0.01 pH, ±0.5 mV |
| Temperature Range | −5 to 95 °C |
| Max Pressure | 6.9 bar at 105 °C |
| Sensor Body Materials | PEEK or Ryton |
| Replaceable Salt Bridge | Yes |
| Optional Auto-Cleaning Assembly | Available |
| Patented Technology | US Patent No. 6,398,181 B1 |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 8550 |
| Pricing | Available Upon Request |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | GLI 3/4-inch |
| Body Material | Ryton® (general-purpose) / PVDF (insertion-type) / PVDF with 316SS liner (sanitary-type) |
| pH Range | 0–14 |
| ORP Range | −2000 to +2000 mV |
| Temp. Range | 0–105 °C |
| Max. Pressure | 6.9 bar at 100 °C |
| Flow Rate Limit | ≤2 m/s (non-abrasive fluids) |
| pH Accuracy | <0.1 pH |
| ORP Accuracy | ±20 mV (in standard solutions) |
| Temperature Compensation | Built-in Pt1000 |
| Reference System | Dual-salt-bridge |
| Grounding | Integrated ground connection |
| Thread | 3/4″ NPT (general-purpose) |
| Flange | 2″ sanitary clamp (sanitary-type) |
| Cable Length | 4.5 m (standard) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | SC1000 |
| Operating Temperature | -20 to 55 °C |
| Storage Temperature | -20 to 70 °C |
| Relative Humidity | 0–95% RH (non-condensing) |
| Power Supply | 100–230 VAC, 50/60 Hz |
| Display | 1/4 VGA backlit TFT color touchscreen |
| Relay Outputs | 4 × SPDT |
| Analog Outputs | 4–20 mA (up to 12 channels, 500 Ω max load) |
| Analog Inputs | 12 × 4–20 mA (500 Ω max input impedance) |
| Digital Communication | MODBUS RTU (RS485 & RS232), PROFIBUS DP, Ethernet service port, optional GSM cellular module |
| Sensor Connectivity | Up to 8 digital sensors per probe module |
| Enclosure Rating | IP65 (panel-mounted display module) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | SC200 |
| Input Types | Dual digital (Hach Digital Sensor Protocol) and/or analog (4–20 mA, 0–20 mA, mV) sensor inputs |
| Communication Protocols | MODBUS RTU (RS232/RS485), Profibus DPV1 (optional) |
| Display | 240 × 160 pixel graphical LCD with LED backlight |
| Enclosure Rating | NEMA 4X / IP66 |
| Power Supply | 100–240 VAC ±10%, 50/60 Hz or 24 VDC (−15% / +20%) |
| Operating Temperature | −20 to 60 °C |
| Housing Material | Polycarbonate front, powder-coated aluminum and stainless steel chassis |
| Mounting Options | Wall, pole, or panel mount |
| Output Signals | Two independent 4–20 mA outputs (max. 500 Ω load) |
| Relay Outputs | Four SPDT relays (5 A, 250 VAC, 1200 W) |
| Data Storage | Flash memory with password-protected SD card slot |
| Certifications | CE (EMC: EN 50081-2, immunity: EN 61000-6-2), UL 61010-1, ETL Listed |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | GLI3400 Series |
| Electrode Constants Available | 0.05, 0.5, 1.0, 5.0, 10.0 cm⁻¹ |
| Conductivity Range | 0–2,000,000 µS/cm (dependent on electrode constant) |
| Resistivity Range | 0.001–20 MΩ·cm |
| Operating Temperature | −20 to 200 °C |
| Max Flow Rate | 3 m/s |
| Max Pressure | 100 psig at 200 °C |
| Accuracy | ±0.01% of reading |
| Probe Weight | 0.45 kg |
| Materials | Titanium, Graphite, 316 Stainless Steel |
| Mounting Options | Compression-fit, Non-metallic universal, Boiler/condensate, Sanitary flange |
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