Description
Overview
GAOTek Multiparameter Water Quality Analyzer contains 15 optional parameters. The meter is suitable for measuring the pH, ORP, ion, conductivity, TDS, salinity, resistivity and DO of the samples.
Features
- Calibration Due Reminder prompts user to calibrate the meter regularly
- Stability indicator automatically shows current measurement status
- Auto-Hold function freezes stable reading for easy viewing and recording
- Manual temperature calibration corrects the temperature deviation
- Selectable temperature unit (°C or °F) meets different application requirements
- Automatic electrode diagnosis shows zero-point offset and slope of the electrode
- Help message as an operational guide that helps user quickly begin using the meter
- Expanded memory stores and recalls up to 500 readings
- Built-in real-time clock stamps stored data to meet GLP standard
- Stored data can be transferred into computer by USB communication interface
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Technical Specifications
| PH Range | -2 pH to 20 pH |
| Accuracy | ±0.002 pH |
| Resolution | 0.1 pH, 0.01 pH, 0.001 pH, Selectable |
| Calibration Points | 1 to 5 points |
| Calibration Solutions | USA, NIST, DIN or User-defined |
| MV Range | -1999.9 mV to 1999.9 mV |
| Accuracy | ±0.2 mV |
| Resolution | 0.1 mV, 1 mV, Selectable |
| Calibration Points | 1 point (Only for Relative mV mode) |
| Calibration Range | ±200 mV |
| Ion Range | 0.001 ppm to 19999 ppm, mg/L, mol/L (Refer to the range of ISE) |
| Accuracy | ±0.5% F.S (Monovalent), ±1% F.S (Divalent) |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Calibration Points | 2 to 5 points |
| Calibration Solutions | 0.001 ppm, 0.01 ppm, 0.1 ppm, 1 ppm, 10 ppm, 100 ppm, 1000 ppm, 10000 ppm, mg/L, mol/L |
| Temperature Compensation | 32 °F to 212 °F (0 °C to 100 °C) |
| Compensation Mode | Manual or Automatic |
| Conductivity Range | 0 µS/cm to 20.00 µS/cm, 200.0 µS/cm, 2000 µS/cm, 20.00 mS/cm, 200.0 mS/cm |
| Accuracy | ±0.5% F.S |
| Calibration Points | 1 to 5 points |
| Calibration Solutions | 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm |
| Temperature Coefficient | 0.0% to 10.0%/ °C |
| Compensation Modes | Linear or Pure Water |
| Cell Constant | K= 0.1, 1, 10 or User-defined |
| Normalization Temperature | 68 °F or 77 °F (20 °C or 25 °C) |
| TDS Range | 0 ppt to 100 ppt (Max. 200 ppt, depending on factor setting) |
| Accuracy | ±1% F. S |
| TDS Factor | 0.1 to 1.0 (Default 0.5) |
| Range | 0 ppt to 10 ppt (Max. 80 ppt) |
| Accuracy | ±1% F. S |
| Measurement Modes | Seawater or Practical Salinity |
| Resistivity Range | 0 MΩ to 100 MΩ |
| Accuracy | ±1% F. S |
| Resolution | 0.01, 0.1, 1 |
| Dissolved Oxygen Range | 0.00 mg/L (or ppm) to 20.00 mg/L (or ppm) |
| Accuracy | ±0.2 mg/L |
| Resolution | 0.01 mg/L |
| Calibration Points | 1 or 2 points |
| Temperature Compensation | 32 °F to 122 °F (0 °C to 50 °C), Automatic |
| Pressure Correction | 0.6 bars to 1.125 bars (60.0 kPa to 112.5 kPa), 450 mmHg to 850 mmHg |
| Salinity Correction | 0 g/L to 50 g/L |
| % Saturation Of Oxygen Range | 0.0% to 200.0% |
| Accuracy | ±2.0% |
| Resolution | 0.1, 1% |
| Temperature Accuracy | ±0.9 °F (±0.5 °C) |
| Resolution | 0.1 °C |
| Calibration Points | 1 point |
| Calibration Range | Measured value ±18 °F (±10 °C) |
| Hold Function | Manual or Automatic endpoint detection |
| Stability Conditions | Low or High |
| Calibration Due | 0 to 31 days |
| Power Off | Manual or Automatic (10 minutes, 20 minutes, 30 minutes) |
| Reset Function | Yes |
| Memory | Stores up to 500 data sets |
| Output | USB Communication Interface |
| Connector | BNC, 6-pin Mini Plug |
| Power Requirements | DC 5 V, using AC adapter, 220 VAC or 50 Hz |
| Temperature Range | 32 °F to 221 °F (0 °C to 105 °C) |
| Temperature Compensation | 32 °F to 212 °F (0 °C to 100 °C) |
| Display | LCD 5.12 in × 4.33 in (130 mm × 110 mm) |
| Dimensions | 210 mm × 188 mm × 60 mm |
| Weight | 3.31 lb. (1.5 kg) |