===제품 특징=== STARA2230
Range -5° to 105°C (23° to 221°F) Resolution 0.1 (0.1) Relative Accuracy ±0.1 DO Mode Concentration Range Polarographic: 0 to 90mg/L; RDO optical: 0 to 50mg/L Concentration Resolution 0.01, 0.1 Relative Accuracy Polarographic: ±0.2mg/L; ±2% RDO optical: ±0.1mg/L up to 8mg/L, ±0.2mg/L up to 20mg/L, 10% of reading beyond; ±2% % Saturation Range Polarographic: 0 to 600; RDO optical: 0 to 500 % Saturation Resolution 0.1, 1 Salinity Factor 0 to 45 ppt, manual Calibration Water-saturated air, air-saturated water, manual (Winkler) and zero point Inputs/Outputs Inputs 8-pin mini-DIN Sensor Types Polarographic or RDO (optical/luminesce-based) DO Data Management 1000 points with date/time stamp Output RS-232, USB Display Graphic LCD; simultaneous display of measurement, temperature, date/time, and more Power Supply Four “AA” batteries or optional universal AC line voltage Environmental Operating Conditions Relative Humidity 5 to 85% noncondensing Warranty 3-year meter replacement
