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| Brand | Ohaus |
|---|---|
| Origin | USA |
| Model | STARTER 3100 |
| Instrument Type | Benchtop |
| Parameter Types | Multi-parameter |
| Measurement Range | -2.00 to 16.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Calibration Buffer Recognition | Auto-identifying international buffer sets (e.g., pH 4.01, 7.00, 10.01) |
| Temperature Compensation | Automatic and manual |
| Memory Capacity | 99 data sets |
| Display | Backlit LCD |
| Power Supply | 110–240 V AC / 50 Hz, DC 12 V adapter |
| Interface | RS232 serial output |
| Compliance | GLP/GMP-compliant data logging with timestamp and electrode ID tracking |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | FE28 / S210-K |
| Instrument Type | Benchtop |
| Parameter Types | Dual (pH + mV/ORP) |
| pH Range | −2.00–16.00 pH (FE28) / −2.000–20.000 pH (S210-K) |
| pH Resolution | 0.01 pH (FE28) / 0.001–0.1 pH selectable (S210-K) |
| pH Accuracy | ±0.01 pH (FE28) / ±0.002 pH (S210-K) |
| mV Range | ±2000 mV (FE28) / ±2000.0 mV (S210-K) |
| mV Resolution | 1 mV (FE28) / 0.1 or 1 mV selectable (S210-K) |
| mV Accuracy | ±1 mV (FE28) / ±0.2 mV (S210-K) |
| Temperature Range | −5 to 105 °C (FE28, manual/auto) / −30.0 to 130.0 °C (S210-K, manual) |
| Temperature Accuracy | ±0.1 °C (S210-K) |
| Calibration Points | Up to 5-point pH calibration |
| Buffer Recognition | Automatic (NIST, DIN, JIS, ISO, METTLER TOLEDO standard buffers) |
| Data Storage | 200 measurement records |
| Connectivity | RS232 and USB |
| Electrode Interface | Standard BNC (FE28) / ISM-enabled Smart Socket (S210-K) |
| Temperature Compensation | Automatic and manual |
| Compliance | Designed for GLP/GMP environments |
| Brand | OHAUS |
|---|---|
| Origin | USA |
| Model | Starter 300 |
| Instrument Type | Portable pH Meter |
| Parameter Types | Dual (pH/mV) |
| Measurement Accuracy | ±0.01 pH, ±1 mV, ±0.5 °C |
| Measurement Range | 0.00–14.00 pH |
| Resolution | 0.01 pH |
| Calibration | Up to 3-point, with standard buffers at pH 4.01, 7.00, and 10.01 |
| Temperature Compensation | Automatic or manual (NTC 3 kΩ sensor) |
| IP Rating | IP54 |
| Display | Backlit LCD |
| Input Impedance | >5 × 10¹² Ω (BNC) |
| Data Storage | 30 measurement records + last calibration data (with timestamp) |
| Power Supply | 9 V DC adapter (included) |
| Dimensions | 160 × 200 × 65 mm |
| Weight | 0.65 kg |
| Housing Material | ABS plastic |
| Operating Environment | 0–50 °C, ≤85% RH non-condensing |
| Brand | Ohaus |
|---|---|
| Origin | USA |
| Model | STARTER 2100 |
| Instrument Type | Benchtop |
| Parameter Types | Multi-parameter |
| Measurement Range | 0.00–14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Calibration Buffer Recognition | Automatic (International Standard Buffers) |
| Temperature Compensation | Automatic & Manual |
| Power Supply | 110–240 V AC, 50/60 Hz / 12 V DC |
| Housing Material | ABS |
| Display | LCD |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | F40K |
| Instrument Type | Multifunctional Benchtop Electrochemical Analyzer |
| Parameter Types | pH, mV, rel. mV, Temperature (ATC/MTC), ISE (with optional module) |
| pH Range | -2.000 to 20.000 |
| pH Resolution | 0.001 / 0.01 / 0.1 selectable |
| pH Accuracy | ±0.001 |
| mV Range | -1999.9 to +1999.9 mV |
| mV Accuracy | ±0.1 mV |
| Temperature Compensation | Automatic (-5 to 130 °C) and Manual (-30 to 130 °C) |
| Calibration | Up to 9-point, auto-buffer recognition, 5 pre-programmed buffer sets + 1 user-defined set |
| GLP Compliance | Full audit trail, timestamped calibration & measurement records, user management |
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