A multimeter for electrochemical analysis! The Model 250 provides the easiest, most accurate measurements available, combining a research-grade pH meter, ion meter, and conductivitiy meter in one! | Mode | Ion | pH | mV | | Ranges | 1.00x10^9 to 9.99x10^9 | -2.000 to 20.000 | +-1800.0 | | Resolution | 1, 2, 3 significant digits | 0.001/0.01/0.1 | 0.1/1 | | Temperature Measurement | -5 to 105C; relative accuracy, +-0.3ºC | Temperature Compensation | Manual Automatic, -5.0 to 105ºC | | Relative Accuracy | +-0.17n% | +-0.002 | +-0.1 |
Other Specifications:- Slope Control: Automatic 90 to 105%, Manual 80 to 110%
- Environmental Conditions: 15º to 40ºC, to 90% Relative Humidity
- Conductivity Range: 0.01 to 300,000µS (depending on cell constant)
- Relative Accuracy: 0.5% of reading
- Salinity Ranges: Autoranging, 0.01 to 70ppt NaCl equivalent salinity, Autoranging, 0.01 to 42ppt practical salinity
- Resistivity: 30ohm*cm to 1, 10 or 20megaohm*cm (at cell constants of 10, 1, 0.5cm-1 respectively) Autranging units; readout in ohm*cm, kilohm*cm, or megaohm*cm. Fixed units: kilohm*cm
- Total Dissolved Solids: 0.005 to 1.5x10^5 mg/L (at 0.5 solids factor, depending on cell constant)
- Temp Coefficient: Software configurable; Off or On 0 to 4%/°C
- Power Requirements: 115V 50/60Hz (Additional voltages available)
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