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| Brand | SOPTOP |
|---|---|
| Origin | Shanghai, China |
| Model | pH6220 |
| Instrument Type | Benchtop |
| Parameter Type | Single-Parameter (pH/mV/Temperature) |
| pH Range | -2.00 to 16.00 pH |
| mV Range | -2000 to +2000 mV |
| Temperature Range | -5.0 to 120.0 °C |
| Temperature Compensation | Automatic or Manual |
| pH Resolution | 0.01 pH |
| mV Resolution | 0.1 mV |
| Temperature Resolution | 0.1 °C / 0.1 °F |
| pH Accuracy | ±0.01 pH |
| mV Accuracy | ±0.2 mV |
| Temperature Accuracy | ±0.3 °C / ±0.5 °F |
| Calibration Points | Up to 5-point NIST-traceable calibration (China-specific NIST-type buffers) |
| Data Storage | 100 measurement records |
| Auto-Power-Off | Configurable (default: 10 min inactivity) |
| Display | 5-inch LED, 120° viewing angle |
| Power | USB-powered base with integrated rechargeable 3.7 V Li-ion battery compartment (battery not included) |
| Interface | USB communication port |
| Software | Included data acquisition software (CD-based) |
| Brand | SOPTOP |
|---|---|
| Model | pH6231 |
| Type | Portable pH Meter |
| Parameter Type | Single-Parameter (pH/mV/Temperature) |
| Measurement Range | −2.000 to 20.000 pH |
| Resolution | 0.001 pH |
| Accuracy | ±0.001 pH |
| mV Range | −2000.0 to +2000.0 mV |
| mV Accuracy | ±0.2 mV |
| Temperature Range | −10.0 to 120.0 °C |
| Temp. Accuracy | ±0.3 °C |
| Temperature Compensation | Automatic or Manual |
| Calibration Points | Up to 5-point NIST-traceable buffer calibration |
| Data Storage | 750 sets with timestamp, instrument ID, and user ID |
| Display | 3.2-inch multi-line LCD with adjustable backlight |
| Power | 2 × 1.5 V AA batteries |
| Auto-Off Delay | Configurable (default: 10 min idle) |
| Interface | USB port for data transfer |
| Compliance | NIST-traceable calibration support |
| Brand | SOPTOP |
|---|---|
| Model | pH6230 |
| Type | Benchtop |
| Parameter Type | Single-Parameter (pH/mV/Temperature) |
| pH Range | -2.000 to 20.000 pH |
| pH Resolution | 0.001 pH |
| pH Accuracy | ±0.001 pH |
| mV Range | -2000.0 to 2000.0 mV |
| mV Resolution | 0.1 mV |
| mV Accuracy | ±0.2 mV |
| Temperature Range | -10.0 to 120.0 °C (14.0 to 248.0 °F) |
| Temperature Resolution | 0.1 °C / 0.1 °F |
| Temperature Accuracy | ±0.3 °C / ±0.5 °F |
| Calibration | Up to 5-point NIST-traceable buffer calibration |
| Temperature Compensation | Automatic or Manual |
| Data Storage | 750 measurement records |
| Display | 5-inch LED, 120° viewing angle |
| Power | USB-powered base with integrated rechargeable 3.7 V Li-ion battery compartment (battery not included) |
| Interface | USB communication port |
| Software | Included PC-based data acquisition software (CD provided) |
| Backlight | Adjustable high-brightness LED backlight |
| Auto-Off | Configurable (default: 10 min inactivity) |
| Password Protection | 4-digit user-defined password |
| User ID & Instrument ID | Customizable (4-digit instrument ID, 2-digit user ID) |
| Date/Time Format | YY/MM/DD, MM/DD/YY, DD/MM/YY |
| Calibration Reminder | 0–60 days adjustable |
| Slope & Offset Display | Real-time calibration diagnostics |
| Reading Lock | Enable/disable |
| Temperature Offset Adjustment | ±5.0 °C / ±9.0 °F |
| Brand | SOPTOP |
|---|---|
| Origin | Shanghai, China |
| Model | PH6221 |
| Instrument Type | Portable |
| Parameter Type | Single-Parameter (pH) |
| Measurement Range | -2.00 to 16.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Calibration Standards | NIST-traceable buffer solutions |
| mV Range | -2000 to +2000 mV |
| Temperature Range | -5.0 to 120.0 °C (23.0 to 248.0 °F) |
| Temperature Compensation | Automatic or Manual |
| Calibration Points | Up to 5-point calibration |
| Data Storage | 100 measurement records |
| Display | 3.2-inch multi-line LCD with anti-scratch coating |
| Power Supply | 2 × 1.5 V AA batteries |
| IP Rating | IP65 |
| Backlight | Adjustable high-brightness LED |
| Auto-power-off | Configurable (default: 10 min inactivity) |
| Electrode Diagnostics | Real-time slope and offset display |
| Connectivity | Optional USB interface |
| Software | Optional data acquisition software with PC compatibility |
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