WATER QUALITY INSTRUMENT Multiparameter pH/ORP/Cond./TDS/Res./Sal./Temp. Meter Laqua PC2000

Model LAQUA-PC2000 pH/ORP/Ion/Conductivity/Resistivity/TDS/Salinity/Temperature (°C/°F) pH Range -2.000 to 20.000 pH Resolution 0.1 / 0.01 / 0.001 pH Accuracy ± 0.003 pH pH Buffer Groups USA, NIST, NIST2, DIN, Custom Calibration Points Up to 5 (USA, NIST, NIST2, Custom) / Up to 6 (DIN) ORP Range ± 2000.0 mV Resolution 0.1 mV Accuracy ± 0.2 mV Calibration Option Yes (Up to ± 200 mV) Ion Range 0.000 µg/L to 9999 g/L Units µg/L ? mg/L ? g/L, ppm ? ppt, mmol/L ? mol/L Resolution 4 Significant digits Accuracy ± 0.3% full scale or ± 0.2 mV, whichever is higher Calibration Points Up to 5 Conductivity Range 0.000 to 1.999 µS/cm (k = 0.1) 2.00 to 19.99 µS/cm (k = 0.1, 1) 20.0 to 199.9 µS/cm (k = 0.1, 1, 10) 200 to 1999 µS/cm (k = 0.1, 1, 10) 2.00 to 19.99 mS/cm (k = 0.1, 1, 10) 20.0 to 199.9 mS/cm (k = 1, 10) 0.200 to 2.000 S/cm (k = 10) Units Auto ranging S/cm, S/m (µS ? mS ? S) Resolution 0.05% full scale Accuracy ± 0.6% full scale; ± 1.5% full scale > 18.0 mS/cm Reference Temperature 15.0 to 30.0 °C (adjustable) Temperature Coefficient 0.00 to 10.00 % per °C (adjustable) Cell Constants 0.070 to 13.00 (adjustable) Calibration Points Up to 4 (Auto) / Up to 5 (Manual) Resistivity Range 0.001 M??cm to 20.0 M??cm Resolution 0.5% full scale Accuracy ± 0.6% full scale; ± 1.5% full scale > 1.80 M??cm Total Dissolved Solids (TDS) Range 0.01 to 9.99 mg/L (ppm) 10.0 to 99.9 mg/L (ppm) 100 to 999 mg/L (ppm) 1.00 to 9.99 g/L (ppt) 10.0 to 100 g/L (ppt) Resolution 0.01, 0.1, 1 mg/L ? g/L (ppm ? ppt) Accuracy ± 0.1% full scale TDS Curves EN27888, 442, NaCl, Linear (0.40 to 1.00) Salinity Range 0.0 to 100.0 ppt / 0.00 to 10.00 % Resolution 0.1 ppt / 0.01% Accuracy ± 0.2% full scale Salinity Curves NaCl / Seawater Calibration Option Yes (Manual; 1 point) Temperature Range -30.0 to 130.0 °C / -22.0 to 266.0 °F Resolution 0.1 °C / °F Accuracy ± 0.5 °C / ± 0.9 °F Calibration Option Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments) Memory 2000 Auto Data Log Yes Real-time Clock Yes Date & Time Stamp Yes Measurement Modes Auto Stable / Auto Hold / Real Time Offset & Slope Display Yes (Segment & Average Slopes) Calibration Alarm Yes (Programmable: up to 90 days) Auto Shut-Off Yes (Programmable: up to 30 mins.) Electrode Status On screen display Diagnostics Yes Password Setting Yes Software Upgrade Yes PC / Printer Communication Phono jack (USB / RS232C) Meter Inputs 2 x BNC, 2 x phono (ATC), DC sockets Display 5" Custom LCD with backlight and 320 segments Power Requirement AC adaptor 100 - 240V, 50 - 60Hz Dimensions & Weight 155(L) x 150(W) x 67(H) mm, 770g