Description
Overview
GAOTek Benchtop Ion Concentration Meter is a compact, multiparameter photometer for use in the lab or in the field. The meter is one of the most advanced photometers available with an innovative optical design that utilizes a reference detector and focusing lens to eliminate errors from changes in the light source and from imperfections in the glass cuvette. This meter has 60 different programmed methods measuring 37 key water quality parameters and offers an absorbance measurement mode for performance verification and for users that would like to develop their own concentration versus absorbance curves. To save valuable laboratory benchtop space, This doubles as a professional pH meter with its digital pH/temperature electrode input. Now one meter can be used for both photometric and pH measurements. From aluminum to zinc, this benchtop photometer measures 37 different key water quality parameters using 60 different methods. This photometer features an innovative optical system that uses LEDs, narrow band interference filters, focusing lens and both a silicon photodetector for absorbance measurement and a reference detector to maintain a consistent light source ensures accurate and repeatable photometric readings every time.
Technical Specifications
| PH Calibration | Automatic one- or two-point calibration with one set of standard buffers available (4.01, 6.86, 7.01, 9.18, 10.01) |
| PH Temperature Compensation | Automatic 23.0 °F to 212.0 °F (-5.0 °C to 100.0 °C); limits reduced based on the pH electrode used |
| PH CAL Check (electrode diagnostics) | clean electrode and check buffer/check displayed during calibration |
| PH Method | Photometer |
| PH-mV Range | ±1000 mV |
| PH-mV Resolution | 0.1 mV |
| PH-mV Accuracy | 0.2 mV |
| Dissolved Oxygen Range | 0.0 mg /L to 10.0 mg /L (as Oâ‚‚) |
| Dissolved Oxygen Resolution | 0.1 mg /L |
| Dissolved Oxygen Accuracy | ±0.4 mg /L ±3% of reading |
| Absorbance Range | 0 Abs to 4 Abs |
| Absorbance Resolution | 0.001 Abs |
| Absorbance Accuracy | ±0.003 Abs @ 1.00 Abs |
| Alkalinity Range | Freshwater |
| Alkalinity Resolution | 1 mg /L |
| Alkalinity Accuracy | ±5 mg/L ±5% of reading |
| Alkalinity Method | Colorimetric method |
| Aluminum Range | 0 mg /L to 1 mg /L (as Al³+) |
| Aluminum Resolution | 0.01 mg /L |
| Aluminum Accuracy | ±0.04 mg / L ±4% of reading |
| Ammonia Range | Low Range |
| Ammonia Resolution | 0.01 mg /L; 0.1 mg /L |
| Ammonia Accuracy | Low Range |
| Anionic Surfactants Range | 0.00 mg /L to 3.50 mg /L (as SDBS) |
| Anionic Surfactants Resolution | 0.01 mg /L |
| Anionic Surfactants Accuracy | ±0.04 mg /L ±3% of reading |
| Bromine Range | 0.00 mg/L to 8.00 mg /L (as Bra) |
| Bromine Resolution | 0.01 mg /L |
| Bromine Accuracy | 10.08 mg /L ±3% of reading |
| Calcium Range | Freshwater |
| Chromium, Hexavalent Range | Low Range |
| Chromium, Hexavalent Resolution | 1 µg /L |
| Chromium, Hexavalent Accuracy | Low Range |
| Color, Water Range | 0 PCU to 500 PCU (Platinum Cobalt Units) |
| Color, Water Resolution | 1 PCU |
| Color, Water Accuracy | ±10 PCU ±5% of reading |
| Copper Range | Low Range |
| Copper Resolution | 0.001 mg /L; 0.01 mg /L |
| Copper Accuracy | Low Range |
| Cyanuric Acid Range | 0 mg /L to 80 mg /L |
| Cyanuric Acid Resolution | 1 mg /L |
| Cyanuric Acid Accuracy | ±1 mg /L ±15% of reading |
| Fluoride Range | Low Range |
| Fluoride Resolution | 0.01 mg /L; 0.1 mg /L |
| Fluoride Accuracy | Low Range |
| Hardness, Total Range | Low Range |
| Potassium Resolution | 0.1 mg /L |
| Potassium Accuracy | ±3.0 mg /L ±7% of reading |
| Silica Range | Low Range |
| Silica Resolution | 0.01 mg /L: 1 mg /L |
| Silica Accuray/Method | Low Range |
| Silver Resolution | 0.001 mg /L |
| Silver Accuracy | ±0.020 mg /L ±5% of reading |
| Sulfate Range | 0 mg/L to 150 mg /L (as 5042) |
| Sulfate Resolution | 1 mg /L |
| Sulfate Accuracy | ±5 mg /L ±3% of reading |
| Zinc Range | 0.00 to 3.00 mg /L (as Zn) |
| Zinc Resolution | 0.01 mg / L |
| Zinc Accuracy | ±0.03 mg / L ±3% of reading |
| Input Channels | 1 pH electrode input and 5 photometer wavelengths |
| pH Electrode | digital pH electrode (not included) |
| Photometer/Colorimeter Light Source | 5 LEDs with 420 nm, 466 nm, 525 nm, 575 nm, and 610 nm narrow band interference filters |
| Bandpass Filter Bandwidth | 8 nm |
| Bandpass Filter Wavelength Accuracy | ±1 nm |
| Cuvette Type | round, 0.96 in (24.6 mm) |
| Number of Methods | 128 max |
| GLP | calibration data for connected pH electrode |
| Display | 128 x 64-pixel LCD with backlight |
| Logging Type | log on demand with username and sample ID optional input |
| Logging Memory | 1000 readings |
| Connectivity | USB-A host for flash drive: micro-USB-B for power and computer connectivity |
| Power Supply | 5 V DC USB 2.0 power adapter with USB-A to micro-USB-B cable (included) |
| Battery Type/Life | 3.7 V DC Li-polymer rechargeable battery / >500 photometric measurements or 50 hours of continuous pt measurement |
| Environment | 32 °F to 122 °F (0 °C to 50 °C)
0% to 95% RH, non-condensing |
| Dimensions | 8.11 in × 6.96 in × 3.81 in (206 mm x 177 mm x 97 mm) |
| Weight | Â 2.2 lb. (1 kg) |