Research-grade electrochemistry meters make your work easier!
Push a button for automatic calibration of pH. Push another button for on-line help that directs you through operational procedures. 200-Series meters even remind you when it is time to recalibrate.
Easy, menu-driven operation. Operation is simple with direct access to each major function through dedicated keys including: Standardize, Cal Data, Datalog, Setup, Clear, and Enter/Print.
Four models offer reliable and affordable research-grade electrochemistry measurement.
Model 215 measures pH, mV and temperature.
Model 220 measures pH, mV, temperature and adds conductivity measurement which includes equivalent salinity, practical salinity, resistivity and Total Dissolved Solids (TDS).
Model 225 measures pH, mV, temperature and ion concentration analysis.
Model 250 is truly a multi-mode meter which measures pH, mV, temperature, ion concentration and conductivity.
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| UltraBasic Portable Meter Specifications | |||
pH | |||
| Range | -2.000 to 20.000 | ||
| Resolution | 0.001/0.01/0.1 | ||
| Accuracy | +/- 0.002 | ||
| Slope Control | Automatic, 90 to 105%; Manual, 80 to 110% | ||
mV | |||
| Range | +/- 1800.0 | ||
| Resolution | 0.1/1 | ||
| Accuracy | +/- 0.1 | ||
Temperature | |||
| Range | -5.0o to +105.0oC | ||
| Resolution | 0.1 | ||
| Accuracy | +/- 0.3 | ||
Ion (Models 225/250) | |||
| Range | 1.00 x 10-9 to 9.99 x 109 | ||
| Resolution | 1, 2, 3 significant digits | ||
| Relative Accuracy | +/- 0.09n% | ||
Conductivity (Models 220/250) | |||
| Conductivity Range | 0.01 to 3x105 uS/cm (depending on cell constant) | ||
| NaCl Equivalent Salinity | Autoranging, 0.01 to 70ppt | ||
| Practical Salinity | Autoranging, 0.01 to 42ppt | ||
| Resistivity | Autoranging, 30 ohm*cm to 20 Megohm*cm depending on cell constant | ||
| Environmental Conditions | 15o to 40oC, 0 - 90% Relative Humidity | ||
| Display | 4.8" x 3.6" backlit VGA | ||
| Data Memory Points | 620, 10-year backup | ||
| Dimensions (LxWxH) | 8" x 10.25" x 3.5" (200 x 260 x 90 mm) | ||