Description
Overview
GAO Tek double parameter conductivity meter meets with the requirement of international GLP standards. Its features up to automatic calibration, automatic temperature compensation, data storage, timing measurement, clock display, RS-232 output, function setting and self-diagnose, etc. There are three different measurement modes: stable display mode; time measurement mode; continuous measurement mode. Automatically recognize pH buffer solution. User can choose anyone from three series of standard buffer solutions: Europe & USA series, NIST series and China series. Adopt advanced and original conductivity measurement technology, use 1 pc of conductivity electrode (K=1), it can meet measuring accuracy requirement for range within 0.5μS per cm to 200mS per cm by using only one-point calibration. Can switch Conductivity, TDS, Salinity and Resistivity. The dustproof and waterproof meter meets IP54 standards. All sockets are seal protected by the silica gel caps
 Technical Specifications
| pH Measuring Range | -1.99 pH to 19.99 pH |
| Resolution | 0.1 pH or 0.01 pH or 0.001 pH |
| Accuracy | ± 0.01 pH, connect meter with |
| Input Current | ± 0.01 pH |
| Input Impedance | ≤ 1 × 10 to 12 A |
| Stability | ≥ 3 × 1012 Ω |
| Compensation Range | ± 0.01 pH or 3 h |
| mV Measuring | -1999.9 mV to 0 to 1999.9 mV |
| Range (mV or ORP or EH) | 0.1 mV |
| Resolution Accuracy | ± 0.03 % FS |
| Conductivity Measuring | Conductivity:0.00 to 20.00 μS per cm 20.0 to 200.0 μS per cm 200 to 2000 μS per cm, 2.00 to 20.00 mS per cm 20.0 to 200.0 mS per cm |
| Range Resolution | Resistivity:0 to 100 MΩ·cm TDS: 0 to 100 g per L |
| Accuracy Temp. Compensation Range | Salinity: 0 to 100 ppt 0.01 or 0.1 or 1μS per cm 0.01 or 0.1 or 1 mS per cm± 1.0 % FS, connect meter with |
| Electrode Constant | Electrode: ± 1.5 % FS |
| Environmental Humidity | ≤ 75 % |
| IP Rating | IP 54 Dustproof and waterproof |
| Reference Temperature | 32 ºF to 122 ºF (0 °C to 50) °C (automatic) 0.1 or 0.5 or 1 or 5 or 10 or 50 or 100 cm-1 77 ºF (25 °C),68 ºF (20 °C) and 64.4 ºF (18 °C) |
| Environment Temperature | 41 ºF to 95 ºF (5 °C to 35 °C), 0.01 grade 59 ºF to 86 ºF (1 5 °C to 30 °C) 0.001 grade |
| Temperature Measuring | -50 ºF to 230 ºF (-10°C to 110°C) |