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| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Model | CST516 |
| Channels | 8 |
| Galvanic Current Range | ±0.01 nA to ±10 mA |
| Current Resolution | 10 pA (at 10 nA range) |
| Potential Range | −1.20 V to +1.20 V |
| Potential Accuracy | ±1 mV |
| Temperature Range | −30 °C to +60 °C (±1 °C) |
| Relative Humidity Range | 0–100% RH (±3% RH) |
| Barometric Pressure Range | 500–1200 hPa (±0.5 hPa) |
| Sampling Interval | 1–99 s |
| Data Storage | 2 MB (≈20,000 records) |
| Communication | RS485, Modbus RTU |
| Power Supply | DC 12 V |
| Dimensions | 180 × 130 × 60 mm |
| Weight | 600 g |
| Enclosure Rating | IP65 |
| Electrode Configurations | Cu–Fe, Zn–Fe, Al–Fe symmetric comb-type electrodes (0.5 mm pitch) |
| Onboard Filtering | 2nd-order low-pass analog filter |
| Microcontroller | STM32-based embedded system |
| Input Architecture | 8-channel ultra-high-impedance voltage followers + 8-channel precision zero-resistance ammeters |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Model | CST480AS |
| Probe Material | Copper Thin-Film Resistive Grid |
| Corrosion Thickness Resolution | 1 nm |
| Cu Film Thickness | 10 µm |
| Sensor Lifetime | >5 years (ISA–71.04–1985 G2 compliant) |
| Temperature Range | −30 °C to +60 °C (±1 °C) |
| Humidity Range | 0–100% RH (±3% RH) |
| Barometric Pressure Range | 300–1100 hPa (±1 hPa) |
| Data Storage | 8 MB (≈100,000 records) |
| RTC Drift | <1 min/month |
| Measurement Interval | 1–24 hours |
| Communication | RS485, Modbus RTU |
| Power Supply | DC 12 V |
| Dimensions | 120 × 80 × 65 mm |
| Weight | 420 g |
| Operating Environment | −30 °C to +60 °C, ≤95% RH (non-condensing) |
| Enclosure Material | Engineering-grade weather-resistant polymer |
| Ingress Protection | IP65 |
| Software Features | Real-time corrosion rate & remaining thickness calculation, corrosion trend modeling, time-series graphing, Excel-compatible report export, ISO/IEC 17025-aligned data traceability framework |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Model | CST730 |
| Measurement Channels | 6-potential / 6-current / 6-impedance |
| Input Impedance | 1×10⁸ Ω |
| Potential Range | −2.0 V to +2.0 V |
| Potential Accuracy | ±0.5% of full scale |
| Potential Resolution | 0.1 mV |
| Current Range | −10 mA to +10 mA (5 auto-ranging scales: 2 µA, 20 µA, 200 µA, 2 mA, 20 mA) |
| Current Accuracy | ±0.5% FS (>20 µA), ±1% FS (≤20 µA) |
| Current Resolution | 0.01 µA |
| Impedance Range | 100 Ω to 10 MΩ |
| Impedance Accuracy | ±0.5% FS (<1 MΩ), ±2% FS (≥1 MΩ) |
| Impedance Resolution | 0.1 Ω |
| Temperature Range | −30 °C to +85 °C (±1 °C) |
| Logging Interval | 1–255 hours |
| Data Storage | 2 MB (~10,000 records) |
| Communication | RS485, Modbus RTU protocol |
| Power Supply | DC 12 V |
| Dimensions | 180 mm × 130 mm × 60 mm |
| Weight | 2.0 kg |
| Operating Temperature | −30 °C to +60 °C |
| Operating Humidity | ≤95% RH (non-condensing) |
| Enclosure Material | Weather-resistant engineering plastic |
| Ingress Protection | IP67 |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Model | CST810E |
| Measurement Principle | Linear Polarization Resistance (LPR) + Electrochemical Impedance Spectroscopy (EIS) |
| Channels | 1 |
| Corrosion Rate Range | 0.1 μm/a – 10 mm/a |
| Accuracy | ±1% FS |
| Input Impedance | 1×10¹¹ Ω |
| Corrosion Potential Range | −2.5 V to +2.5 V |
| Potential Resolution | 0.1 mV |
| Solution Resistance (Rs) Range | 10 Ω – 500 kΩ |
| Polarization Resistance (Rp) Range | 10 Ω – 10 MΩ |
| AC Signal Amplitude | 1–100 mV RMS |
| Frequency Range | 0.001 Hz – 10 kHz |
| Timing Interval | 1–255 hours |
| Real-Time Clock Drift | <1 min/month |
| Data Storage | 10,000 records (timestamped) in 8 MB Flash memory |
| Power | Rechargeable Li-ion battery (60 h continuous operation) |
| Dimensions | 260 × 165 × 200 mm |
| Weight | 3.5 kg |
| Operating Temperature | −30 °C to +60 °C |
| Humidity | ≤100% RH (non-condensing) |
| Enclosure Material | Industrial-grade polymer |
| IP Rating | IP65 |
| Communication | USB 2.0, RS-232 serial interface |
| Software | EIS Tools v3.x (Windows-based, supports ASTM G102, ISO 9223, NACE SP0169, and GLP-compliant data audit trails) |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CST1840 |
| Measurement Principle | Electrochemical Impedance Spectroscopy (EIS) & Current-Constraint Method |
| Channels | 4 |
| Input Impedance | 10¹¹ Ω |
| Corrosion Rate Range | 0.001–10 mm/a |
| Open-Circuit Potential Range | −2.5 V to +2.5 V vs. reference electrode |
| Soil Resistivity Range | 10 Ω to 100 kΩ |
| Accuracy | ±1% of reading |
| Timing Interval | 1–255 hours |
| Real-Time Clock Drift | <1 min/month |
| Onboard Storage | 16 MB Flash (≥5,000 measurement sets) |
| Communication | RS-485, Modbus RTU protocol |
| Power Supply | DC 12 V |
| Dimensions | 180 × 130 × 60 mm |
| Weight | 1.0 kg |
| Operating Temperature | −20 °C to +60 °C |
| Relative Humidity | ≤80% RH (non-condensing) |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CST800E |
| Pricing | Upon Request |
| Measurement Principle | Electrochemical Impedance Spectroscopy (EIS) |
| Channels | 4 independent corrosion monitoring channels |
| Corrosion Rate Range | 0.1 μm/a to 10 mm/a |
| Absolute Accuracy | ±1% of reading |
| Input Impedance | 1 × 10¹¹ Ω |
| Corrosion Potential Range | −2.5 V to +2.5 V |
| Potential Resolution | 0.1 mV |
| Solution Resistance (Rs) Range | 10 Ω to 500 kΩ |
| Polarization Resistance (Rp) Range | 5 Ω to 10 MΩ |
| AC Excitation Signal | Sine wave, amplitude 1–100 mV, frequency 0.001 Hz–10 kHz |
| Timing Interval | 1–255 hours |
| Real-Time Clock Drift | <1 min/month |
| Onboard Memory | 16 MB non-volatile flash (20,000 data sets) |
| Communication Interfaces | USB 2.0, RS-485 |
| Power Supply | AC 220 V ±10% / 4 × AA rechargeable batteries (60 h continuous operation) |
| Dimensions | 280 mm × 250 mm × 110 mm |
| Weight | 3.5 kg |
| Operating Temperature | −30 °C to +60 °C |
| Relative Humidity | ≤80% RH (non-condensing) |
| Enclosure Material | Industrial-grade ABS polymer |
| Ingress Protection | IP65 |
| Included Accessories | CP-81 corrosion probe, electrode polishing kit, simulated electrolytic cell, power/USB/electrode/probe cables, EISTools software suite |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Model | CST720 |
| Power Supply | DC 12 V |
| Communication | RS485 (Modbus RTU) |
| Data Storage | 2 MB (up to 20,000 records) |
| Operating Temperature | −30 °C to +60 °C |
| Operating Humidity | ≤95% RH (non-condensing) |
| Enclosure Rating | IP65 |
| Instrument Dimensions | 180 × 130 × 60 mm |
| Probe Dimensions | Φ54 × 116 mm |
| Weight | 1.5 kg |
| Input Impedance | 1 × 10¹¹ Ω |
| Corrosion Rate Range | 0–10 mm/a |
| Half-Cell Potential Range | −2.5 V to +2.5 V |
| Potential Accuracy | ±0.5% FS |
| Potential Resolution | 0.1 mV |
| pH Range | 4.00–14.00 |
| pH Accuracy | ±10% FS |
| pH Resolution | 0.01 |
| Cl⁻ Range | 1 × 10⁻⁴ – 0.1 mol/L |
| Cl⁻ Accuracy | ±10% FS |
| Cl⁻ Resolution | 1 × 10⁻⁵ mol/L |
| Resistivity Range | 10 Ω·cm – 100 kΩ·cm |
| Resistivity Accuracy | ±0.5% FS |
| Resistivity Resolution | 0.1 Ω·cm |
| Real-Time Clock Drift | <1 min/month |
| Integrated Sensors | MnO₂ reference electrode, Ag/AgCl chloride ISE, conductivity electrode, corrosion working electrode, Pt auxiliary electrode, NTC temperature sensor |
| Brand | CorrTest |
|---|---|
| Origin | Hubei, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic Instrument |
| Model | CST400C |
| Pricing | Available Upon Request |
| AD Resolution | 24-bit (0.06 ppm) |
| Corrosion Resolution | 0.01% of Sensing Element Thickness |
| RTC Accuracy | <1 min/month |
| Measurement Interval | 1–24 hours |
| Data Storage | 8 MB (up to 100,000 records) |
| Communication | RS485, Modbus RTU compliant |
| Power Supply | DC 12 V |
| Dimensions | Ø114 × 120 mm |
| Weight | 1.3 kg |
| Operating Temperature | −30 °C to +60 °C |
| Relative Humidity | ≤80% RH |
| Enclosure Material | Anodized Aluminum |
| Ingress Protection | IP67 |
| Explosion Protection | Ex ib II C T4 Gb (conforms to GB3836.1–2011 & GB3836.4–2011) |
| Software | CST Corrosion Analysis Suite (Windows XP or later) |
| Brand | CorrTest |
|---|---|
| Model | CST1808 |
| Measurement Channels | 4 |
| Impedance Range | 10³ Ω to 10¹⁰ Ω |
| Input Impedance | ≥10¹² Ω |
| Frequency Range | 10 Hz to 100 kHz |
| AC Signal Amplitude | 10 mV to 1000 mV |
| Data Storage | 8 MB (up to 100,000 records) |
| Communication | RS485 with standard Modbus RTU protocol |
| Power Supply | DC 12 V |
| Dimensions | 180 mm × 130 mm × 60 mm |
| Weight | 1.0 kg |
| Operating Temperature | −20 °C to +60 °C |
| Operating Humidity | ≤95% RH (non-condensing) |
| Enclosure Material | Engineering-grade weather-resistant polymer |
| Ingress Protection | IP67 |
| Probe Interface | Dual-electrode (ring-disk or substrate-coupled configuration) |
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