THERMO ORION SCIENTIFIC, VSTAR90 pH/ISE/Conductivity/Dissolved Oxygen Multiparameter Benchtop Meter
Prod #VSTAR90
- Terdiri dari 4 modul yaitu pH , ISE atau ion concentration , conductivity , DO atau dissolve oxygen/RDO
- Log up to 2000 data point sets dengan waktu atau tanggal
- Mudah dalam transfer data via USB atau RS232 ke printer atau komputer
- Display berwarna
Product Overview
Specification:
| Range (pH) | -2.000 to 20.000pH |
|---|---|
| Resolution (pH) | 0.1, 0.01, 0.001pH |
| Accuracy (pH) | ±0.002pH |
| Range (mV) | ±2000.0mV |
| Range (Relative mV) | ±2000.0mV |
| Range (ORP) | ±2000.0mV |
| Resolution (mV) | 0.1mV |
| Accuracy (mV) | ±0.2 mV or ±0.05% of reading whichever is greater |
| Range (ISE) | 0.0001 to 19990 with selectable units of ppm, Molar, mg/L, %, ppb or none |
| Resolution (ISE) | 0.0001 minimum, 1 to 4 significant digits (user selectable) |
| Accuracy (ISE) | ±0.2 mV or ±0.05% of reading whichever is greater |
| Advanced ISE Functions | Segmented (point-to-point) slope, non-linear selectable auto-blank, low concentration range stability, incremental techniques including single known addition and subtraction, double known addition and subtraction, single analyte addition and subtraction |
| Isopotential Point | 7.000pH (adjustable), 1.000 ISE (adjustable) |
| Range (Conductivity) | 0.001 μS/cm to 3000 mS/cm |
| Resolution (Conductivity) | 0.001 μS minimum, auto ranging up to 4 significant digits |
| Accuracy (Conductivity) | 0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS |
| Range (TDS) | 0.001 to 200.0 ppm |
| Resolution (TDS) | 0.001 ppm minimum, auto ranging up to 4 significant digits |
| Accuracy (TDS) | 0.5% of reading ±1 digit |
| TDS Factor Range | Linear (0.02 to 9.99) |
| Range (Salinity) | 0.06 to 80.00 psu, 0.05 to 42.00 ppt |
| Resolution (Salinity) | 0.01 psu or 0.01 ppt minimum, auto ranging |
| Accuracy (Salinity) | 0.5% of reading ±1 digit |
| Salinity Measurement Modes | Practical salinity (psu) or natural sea water (ppt) |
| Range (Resistivity) | 2 ohm to 100.0 meg-ohm |
| Resolution (Resistivity) | 1 ohm or 0.1 meg-ohm, auto ranging |
| Accuracy (Resistivity) | 0.5% of reading ±1 digit |
| Cell Constant | 0.001 to 199.9cm-1 |
| Temperature Compensation | Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off |
| Temperature (Metric) Reference | 5°, 10°, 15°, 20°, 25°C |
| Range (Polarographic DO) | 0.00 to 90.00mg/L |
| Resolution (Polarographic DO) | 0.01, 0.1mg/L |
| Accuracy (Polarographic DO) | ±0.2 mg/L or ±2% of reading, whichever is greater |
| Range (RDO) | 0.00 to 50.00mg/L |
| Resolution (RDO) | 0.01, 0.1mg/L |
| Accuracy (RDO) | ±0.1 mg/L up to 8 mg/L, ±0.2 mg/L from 8 to 20 mg/L, ±10% of reading up to 50 mg/L |
| Percent Saturation Range (Polarographic DO) | 0.0 to 600.0% saturation |
| Percent Saturation Resolution (Polarographic DO) | 0.1, 1% saturation |
| Percent Saturation Relative Accuracy (Polarographic DO) | ±2 % saturation or ±2% of reading whichever is greater |
| Percent Saturation Range (RDO) | 0.0 to 500.0% saturation |
| Percent Saturation Resolution (RDO) | 0.1, 1% saturation |
| Percent Saturation Relative Accuracy (RDO) | ±2% saturation ≤ 200% saturation, ±10% saturation > 200% saturation |
| Barometric Pressure Correction | 400 to 850mmHg, automatic using built-in barometer or manual entry |
| Pressure Range | 400 to 850mmHg |
| Pressure Resolution | 0.1mmHg |
| Accuracy (Barometer) | ±6 mmHg |
| Salinity Factor | 0.0 to 45.0 ppt, automatic correction using conductivity reading or manual entry of sample salinity |
| Calibration | pH with calibration editing option, ion concentration (ISE) with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing option, dissolved oxygen and temperature |
| Calibration Points (pH) | 1 to 6 |
| Calibration Points (ISE) | 1 to 6 |
| Calibration Points | 1 point relative mV (RmV) mode, 1 point ORP mode |
| Calibration Points (Conductivity) | Up to 6 |
| Calibration Modes | Water-saturated air, air-saturated water, manual (Winkler titration), zero point |
| Range (Temperature) | -5.0 to 105.0 °C, 22.0 to 221.0 °F |
| Resolution (Temperature) | 0.1°C, 0.1°F |
| Accuracy (Temperature) | ±0.1°C |
| Temperature Selection | Manual or automatic with ATC temperature probe |
| Temperature Probe Calibration | 1 point temperature offset calibration |
| Channels | 4 - customizable with modules |
| Display Type | Color graphic LCD with user-customizable options |
| Backlight Option | Yes |
| Keypad | Numeric with menu-specific function keys and dual purpose scroll/shortcut keys |
| Measurement Modes | pH, mV, relative mV (RmV), ORP or ion concentration (ISE) with temperature; conductivity, TDS, salinity or resistivity with temperature; dissolved oxygen as % saturation or mg/L with temperature and barometric pressure |