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| Brand | METTLER TOLEDO |
|---|---|
| Origin | Germany |
| Model | S40K |
| Instrument Type | Benchtop (not portable — corrected per technical specification) |
| Parameter Types | pH, mV, Ion Concentration, Temperature |
| pH Measurement Range | –2.000 to 20.000 |
| pH Resolution | 0.001 |
| pH Accuracy | ±0.001 |
| mV Range | –1999.9 to +1999.9 mV |
| mV Accuracy | ±0.1 mV |
| Temperature Compensation | Automatic (ATC: –5 to 130 °C) and Manual (MTC: –30 to 130 °C) |
| Data Endpoint Modes | Auto-read, Manual, Timed Interval |
| Connectivity | RS232, USB |
| GLP Compliance | Full audit trail, user management, calibration history, timestamped records |
| Software Integration | LabX direct control, LIMS compatibility |
| Sample ID Input | Barcode scanner support |
| Automation Ready | Compatible with automated sample changers (e.g., 9-position) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | PHS-3E |
| Instrument Type | Portable |
| Measurement Parameters | pH, mV (ORP), Temperature |
| pH Accuracy | ±0.01 pH ±1 digit |
| pH Range | −2.00 to 18.00 pH |
| mV Range | −1999 to +1999 mV |
| Temperature Range | 0.0 to 99.9 °C |
| pH Resolution | 0.01 pH |
| mV Resolution | 1 mV |
| Temperature Resolution | 0.1 °C |
| Temperature Compensation | Automatic or Manual (0.0–99.9 °C) |
| Calibration | Two-point calibration with auto-recognition of standard buffers (pH 4.00, 6.86, 9.18) |
| Display | LCD segment display |
| Power Supply | AC 220 V ±10 %, 50 Hz |
| Dimensions (W×D×H) | 300 × 220 × 90 mm |
| Weight | 1.3 kg |
| Electrode Compatibility | E-201-C combination pH electrode |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | FE30 / FE30K |
| Instrument Type | Benchtop |
| Parameter Types | Conductivity, TDS, Salinity, Resistivity, Temperature |
| Measurement Range | 0.00 µS/cm – 199.9 mS/cm (equivalent to 0.00 mg/L – 199.9 g/L TDS) |
| Resolution | Automatic, 0.01 µS/cm to 0.1 mS/cm (conductivity) |
| Accuracy | ±0.5% of reading |
| Calibration Solutions | Standardized US-type conductivity standards (e.g., 84 µS/cm, 1413 µS/cm, 12.88 mS/cm) |
| Temperature Compensation | Linear, with selectable reference temperature (15–25 °C default) |
| Compliance | Designed per IEC 61010-1 for laboratory electrical safety |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | PHSJ-3F |
| Instrument Type | Portable |
| Parameter Types | pH, mV (ORP), Temperature |
| Measurement Accuracy | ±0.01 pH |
| Measurement Range | pH –2.000 to 20.000 |
| Resolution | 0.01 pH / 1 mV / 0.1 °C |
| Accuracy | ±0.01 pH ±1 digit |
| Calibration Solutions | China-standard buffer set (pH 4.01, 6.86, 9.18) |
| GLP Compliance | Yes |
| Data Storage | 500 GLP-compliant records |
| Interface | USB |
| Power | 9 V DC (800 mA, center-positive) |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | S40K / S40 / S40N (SevenMulti Platform) |
| Application | Laboratory-grade ORP and pH/mV/Conductivity/Ion Concentration Measurement |
| pH Range | –2.000 to 20.000 |
| pH Resolution | 0.001 / 0.01 / 0.1 (user-selectable) |
| pH Accuracy (relative) | ±0.002 |
| mV/ORP Range | –2000.0 to +2000.0 mV |
| mV Resolution | 0.1 mV |
| mV Accuracy | ±0.1 mV |
| Temperature Range | –30.0 to 130.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.1 °C |
| Display | Monochrome LCD |
| Power Supply | External AC adapter |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Benchtop |
| Measurement Principle | Two-electrode AC conductivity measurement |
| Measurement Range | 0–1×10⁵ µS/cm |
| Accuracy | ±1.5% FS (DDS-11A & DDS-11D), ±1.0% FS (DDS-11C) |
| Resolution | 0.1 µS/cm (analog scale) |
| Calibration Standard | NIST-traceable Chinese national calibration solutions |
| Compliance | GB/T 11018–2021 (Chinese National Standard for Conductivity Meters) |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | FE20K |
| Instrument Type | Benchtop (not portable) |
| Parameter Type | Single-parameter (pH/mV/ORP) |
| pH Range | 0.00–14.00 |
| pH Resolution | 0.01 |
| pH Accuracy | ±0.01 |
| mV Range | −1999 to +1999 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ±1 mV |
| Temperature Range | 0.0–100.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Calibration | Up to 3-point, with auto-buffer recognition for 4 pre-defined IUPAC/NIST-compatible buffers |
| Data Storage | 99 measurement records |
| Interface | RS232 |
| Display | Backlit LCD showing pH/mV value, temperature, endpoint status, and calibration indicators |
| Brand | LeiCi |
|---|---|
| Origin | Shanghai, China |
| Model | PHS-3C |
| Instrument Type | Benchtop |
| Parameter Types | Dual (pH/mV) |
| Measurement Range | 0.00–14.00 pH |
| Resolution | 0.01 pH / 1 mV |
| Accuracy | ±0.01 pH ±1 digit |
| Input Impedance | ≥1 × 10¹² Ω |
| Stability | ±0.01 pH ±1 digit / 3 h |
| Temperature Compensation Range | 0–60 °C |
| Sample Temperature Range | 5–60 °C |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions (W×D×H) | 290 × 210 × 95 mm |
| Weight | 1.5 kg |
| Calibration Standard | NIST-traceable buffer solutions |
| Display | Large segment LCD with automatic polarity indication for mV |
| Brand | LeiCi |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Benchtop |
| Parameter Types | Multi-parameter (Conductivity, TDS, Temperature) |
| Measurement Range | 0–1.999 × 10⁵ µS/cm |
| Accuracy | ±0.5% FS |
| Resolution | 0.01 µS/cm (DDS-307), 0.01 µS/cm / 0.01 °C (DDS-307A), 0.001 µS/cm (DDS-308) |
| Calibration Standard | NIST-traceable conductivity standards (China-specific formulation) |
| Temperature Compensation | Manual (DDS-307), Automatic (DDS-307A & DDS-308) |
| Output Interface | 0–10 mV analog (DDS-307), RS232 (DDS-308) |
| Display | LED (DDS-307/307A), LCD (DDS-308) |
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