THERMO ORION SCIENTIFIC, Orion STARA2155 pH/Conductivity Meter Benchtop
Conductivity Meter Benchtop (Orion STARA2155)
Orion STARA2155 pH Conductivity Meter Benchtop dapat digunakan untuk mengukur pH, ORP, Conductivity dan mV. Ideal digunakan di laboratorium dengan range pengukuran yang tinggi. STARA2155 memiliki 2 meter chanel untuk mengukur pH dan conductivity meter STARA2155.
Conductivity meter tersusun atas dua elektrode, yang dirangkaikan dengan sumber tegangan serta sebuah ampere meter. Elektrode tersebut diatur sehingga memiliki jarak tertentu antara keduanya (biasanya 1 cm). Pada saat pengukuran, kedua elektrode ini dicelupkan ke dalam sampel larutan dan diberi tegangan dengan besar tertentu. Nilai arus listrik yang dibaca oleh ampere meter, digunakan lebih lanjut untuk menghitung nilai konduktivitas listrik larutan.
Conductivity meter adalah alat untuk mengukur nilai konduktivitas listrik (specific/electric conductivity) suatu larutan atau cairan. Nilai konduktivitas listrik sebuah zat cair menjadi referensi atas jumlah ion serta konsentrasi padatan (Total Dissolved Solid / TDS) yang terlarut di dalamnya. Prinsip kerja conductivity meter menggunakan persamaan Elektrode. Dimana besar tegangan listrik (V) ditentukan oleh sistem, besar arus listrik (I) adalah parameter yang diukur, serta konstanta (C) didapatkan sebelumnya dari proses kalibrasi conductivity meter dengan menggunakan larutan yang diketahui nilai konduktivitas spesifiknya.
Read More : Conductivity Meter Benchtop Orion STARA2155
Product Overview
Spesifikasi Conductivity Meter:
| Description | Orion Star A215 pH/conductivity benchtop meter kit with ROSS Ultra Triode epoxy-body pH/ATC electrode, DuraProbe 4-cell conductivity sensor, solutions and stand |
| Item Description | Orion Star A215 pH/conductivity benchtop meter kit with ROSS Ultra Triode epoxy-body pH/ATC electrode, DuraProbe 4-cell conductivity sensor, solutions and stand |
| 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 |
| Isopotential Point | 7.000pH |
| 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 |
| Calibration | pH with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing option and temperature |
| Calibration Points (pH) | 1 to 5 |
| Calibration Points | 1 point relative mV (RmV) mode, 1 point ORP mode |
| Calibration Points (Conductivity) | Up to 5 |
| 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 | 2 |
| Display Type | Graphic LCD with backlight |
| Backlight Option | Yes, selectable |
| Keypad | Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys |
| Measurement Modes | pH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with temperature |
| Stability | Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting |
| Data Management Details | Transfer single, range or all data points to printer or computer |
| Data Points | 2000 with date and time stamp |
| Log Function Type | Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous measure mode |
| Memory | Non-volatile memory preserves data log, calibration log and meter settings |
| Alarm Output | High/low limit alarm, calibration due alarm |
| Methods | 10 per channel with password protection |
| Languages | English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update |
| Inputs | BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe), stirrer input (stirrer probe) |
| Outputs | USB, RS232 |
| Power Supply | Universal AC adapter (included) or 4 AA batteries (sold separately) |
