Benchtop pH/ORP/lon Meter PH-920 PH-930

Benchtop pH/ORP/lon Meter PH-920 PH-930 pH： 1. 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers. 2. Automatic electrode diagnosis shows the pH slope and offset. 3. Automatic temperature compensation ensures accurate readings over the entire range. 4. Calibration due alarm prompts user to calibrate the meter regularly. ORP: 1. 1 point offset calibration allows adjusting the displayed value to a known standard. 2. Relative and absolute millivolt modes ensure the reliable ORP measurements. Ion Concentration(For PH-930). 3. 2 to 5 points calibration, including the 8 concentration points can be selected. 4. Direct ion concentration readout simplifies the measurement process. 5. Automatic electrode diagnosis shows the calibration points and slopes. 6. Selectable concentration units(ppm, mg/L, mol/L, mmol/L) and ionic valency. General Features： 1. Auto-Read function senses and locks the measurement endpoint. 2. Setup menu allows setting the pH buffer set, number of calibration points, resolution, stability criteria, temperature unit, date and time, etc. 3. Reset function automatically resumes all settings back to the factory defaults. 4. Expanded memory stores or recalls up to 500 data sets. 5. USB communication interface for data transfer and timed interval readings. Accessories: E201-BNC plastic body pH electrode, temperature probe, pH buffer sachets, electrode holder, DC5Vpower adapter. Technical Parameters: Model PH-920 PH-930 PH Range -2.000~20.000pH Accuracy ±0.002pH Resolution 0.1, 0.01, 0.001pH, Selectable Calibration Points 1~5 points Calibration Solutions USA, NIST, DIN, 2 custom buffers ORP MV Range ±1999.9mV Relative mV Range ±1999.9mV Resolution 0.1,1mV, Selectable MV Accuracy ±0.2mV Calibration Points 1 point Ion Range / 0.001~19999ppm, mg/L, mol/L(deponding on the range of ISE) Resolution / 0.001, 0.01 ,0.1, 1 Accuracy / ±0.5%F.S(Monovalent), ±1%F.S(Divalent) Measurement Units / ppm, mg/L, mol/L, mmol/L Calibration Points / 2 to 5 points Calibration Solutions / 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000 Temperature Range 0~105°C/32~221°F Resolution 0.1°C/0.1°F Accuracy ±0.5°C/±0.9°F Offset Calibration 1 point, reading ±10°C Other Specifications Temperature Compensation 0~100°C, Manual or Automatic Stability Criteria Low or high Calibration Due Alarm 1 to 31 days or off Slope/Offset Display Yes Hold Function Manual or auto-endpoint Memory 500 data sets Communication Interface USB Connector BNC, 3.5mm jack socket Display Custom LCD(125*100mm) Power Requirements DC5V power adapter Dimensions(mm) 210*188*60mm Weight(kg) 1.5kg Package Size(W*D*H)mm 310*240*180mm Gross Weight(kg) 1.7kg