Description
Overview
GAOTek Multi-Parameter Water Quality Meter (ORP, TDS and Salinity) is a waterproof portable water meter that monitors different water quality parameters. It comes with the microprocessor based multi-sensor probe which allows for the measurement of key parameters including pH/pX, DO, conductivity and temperature. It supports buffer group management and is useful in automatic identification of 25 kinds of buffer solutions.
Features
- Large 5.7 inch touch screen which is easy to use
- Four-channel units design (pH/pX unit, conductive unit, DO unit) to support
- Automatic identification, plug and play
- To support electrode management, up to 25 pcs electrodes
- To support Buffer group management, automatic identification of 25 kinds of buffer solutions, such as DIN and NIST. Up to six-point pH calibration and up to 5 point conductivity calibration
- To support ion concentration unit switch, such as ug/L, mg/L, g/L, mol/L, mmol/L
- To measure 0-78.74 ms/in (0-200 ms/cm) conductivity with one probe
- To support firm ware upgrade and contact with PC or auto sample
- Wide power supply from 110 V to 240 V
Technical Specifications
| pH/pX Unit | pH | Range: -2.000 pH to 20.000 pH
Resolution: 0.001 pH； Basic error of electronic unit: ±0.002 pH |
| pX | Range: 0.000 pX to 14.000 pX
Resolution: 0.001 pX Basic error of electronic unit: ±0.002 pX |
|
| Ion concentration | Range: (0 to 19990)
Resolution: Four significant figures (Scientific notation） Basic error of electronic unit: ± 0.3 % |
|
| Potential | Range: -2000.00 mV to 2000.00 mV
Resolution: 0.01 mV Basic error of electronic unit: ±0.03 %FS |
|
| Conductivity Unit | Conductivity | Range: 0.000 μS/cm to 3000 mS/cm
Resolution: Varies with each grade Basic error of electronic unit: ±0.5 % (FS) |
| Resistivity | Range: 1.96 Ω.in to 39.37 Ω.in (5.00 Ω.cm to 100.0 MΩ.cm)
Resolution: Varies with each grade Basic error of electronic unit: ±0.5 %(FS) |
|
| TDS | Range: 0.000 mg/L to 1000 g/L
Resolution：Varies with each grade Basic error of electronic unit: ±0.5 %(FS) |
|
| Salinity | Range: 0.00 % to 8.00 %
Resolution: 0.01 % Basic error of electronic unit: ±0.1 % |
|
| DO Unit | DO
Concentration |
Range: 0.00 mg/L to 90.00 mg/L
Resolution: 0.01 mg/L Basic error of electronic unit: ±0.10 mg/L |
| DO Saturation | Range: 0.0 % to 600.0 %
Resolution: 0.1 % Basic error of electronic unit: ±2.0 % |
|
| Temperature | Range: 23 °F to 266 °F（-5.0 °C to 130.0 °C）
Resolution: 0.1 °F/℃ Basic error of electronic unit: ±0.1°F/℃ |
|
| Dimensions | 9.84 in x 7.67 in x 3.93 in (250 mm × 195 mm × 100 mm) | |
| Weight | 4.40 lbs (2 kg) | |
Additional Information
Applications
Apart from the ion unit provided by the meter, in case user needs to measure other ions, you can also set your own ion model to measure other ions.
Meter has the ability of automatically distinguishing standard buffer solution. You can select several pH standard buffer solutions to calibrate electrode. User can set own standard solution groups
With one-point calibration, two-point calibration and multiple point calibration (mostly 5 points) function
With several concentration measuring modes: Direct read concentration mode, known adding measuring electrode, meter can ensure the high precision. The valid resolving power of potential can be reached to 0.01 MV.
Conducting Measurement
Meter can measure conductivity, resistivity, total solid solution (TDS) and salinity.
Within full measuring range, meter has automatic temperature compensation, automatic calibration, automatic measuring range, and automatic frequency switching functions.
With calibration function, user could calibrate electrode constant or TDS switching coefficient.
Dissolved Oxygen Measuring
Meter can measure dissolved oxygen’s concentration, saturation and electrode current.
With automatic temperature compensation function
With calibration function which can make zero oxygen calibration, full scale calibration, atmosphere calibration and salinity calibration.
Other Characteristics
Apart from ion concentration, meter allows to measure all parameter in ion, conductive, DO and temperature simultaneously. Of cause, it also allows user to select necessary parameter for measuring
- Meter supports GLP regulation
- Meter requests user to set operator number and then can record down the procedure of all user
- Can record down and print calibrating data.
- Can store 200 sets measuring data in each of PH measuring data, conductive measuring data, TDS measuring data, salinity measuring data and dissolved value including corresponding pX value and ion concentration value
- Can search, print and delete measuring data
- Can search the using parameter under present measuring mode and balance measuring mode to meet different user’s measuring requirements
- With electricity cut off protection function which can protect the stored measuring data, calibrating data and set parameter to be saved when meter is turned off or abnormal electricity cut off occurred