Overview
Enviro Test Construct Water Quality Meter with 12 Multiparameter (Data Storage) is suitable for measuring the pH, mV, Conductivity and TDS of liquids. In the Conductivity/TDS mode the instrument features 1 to 5 points push-button calibration with automatic calibration solution recognition, selectable cell constant (0.1/1/10), normalization temperature, TDS conversion factor and linear or pure water compensation mode. System menu allows setting the 12 parameters, including the number of calibration points, resolution, stability condition, measurement unit, etc. Stored data can be transferred into computer by USB communication interface.
Key Features
- Equipped with a large backlit LCD display
- In pH mode, Ito 5 points push-button calibration with auto-buffer recognition and in conductivity/TDS Mode 1 to 5 points push-button calibration with automatic calibration solution recognition
- Automatic electrode slope display helps user decide whether to replace sensor
- Selectable cell constant (0.1/1/10), normalization temperature 68 °F/77 °F (20 °c /25°C), TDS conversion factor and linear or pure water compensation mode.
- Automatic Temperature Compensation provides accurate reading over the entire range
- Calibration Due Reminder prompts user to calibrate the meter regularly
- Stability indicator automatically shows current measurement status
- Auto-Hold function freezes stable measured value for easy viewing and recording
- Manual temperature calibration corrects temperature deviation
- Selectable temperature unit (°C or °F) meets different application requirements
- Automatic electrode diagnosis shows zero point offset and slope of the electrode
- Help message is an operational guide that helps user quickly begin using the meter
- System menu allows setting the 12 parameters, including the number of calibration points, resolution, stability condition, measurement unit, etc
- Reset feature automatically resumes all parameters back to factory default settings
- Expanded memory stores and recalls up to 500 readings
- Built-in real-time clock stamps stored data to meet GLP standard
- Stored data can be transferred into computer by USB communication interface.
Technical Specifications
| pH | |
| Range | -2.000 pH — 20.000 pH |
| Accuracy | +-0,002 pH |
| Resolution | 0.1 pH, 0.01 pH, 0.001 pH (selectable) |
| Calibration Points | 1 to 5 points |
| Calibration Solutions | USA, NIST, DIN or User-defined Buffer |
| Temperature Compensation | 32 °F – 212 °F (0 °C – 100 °C) |
| Compensation Mode | Manual or Automatic |
| mv | |
| Range | -1999.9 mV — 1989.9 mV |
| Accuracy | +-0.2 mV |
| Resolution | 0.1 mv, 1 mV (Selectable) |
| Calibration Points | 1 point (Only for Relative mV mode) |
| Calibration Range | +-200 mV |
| lon | |
| Range | 0.001 ppm – 19999 ppm, mg/L, mol/L (depending on the range of ISE) |
| Accuracy | +-0.5 % F.S (monovalent), +1 % F.S (divalent) |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Calibration Points | 2 to 5 points |
| Calibration Solutions | 0.001 ppm, 0.01 ppm, 0.1 ppm, 1 ppm, 10 ppm, 100 ppm, 1000 ppm, 10000 ppm, mg/L, mol/L |
| Temperature Compensation | 32 °F — 212 °F (0 °C – 100 °C) |
| Compensation Mode | Manual or Automatic |
| Conductivity | |
| Range | Ous/em — 20.00 ps/cm, 200.0 ps/em, 2000 ps/cm, 20.00, 200.0 ms/cm |
| Accuracy | +-0.5% FS |
| Calibration Points | 1to 5 points |
| Calibration Solutions | 10 ps/cm, 84 pS/cm, 1413 pS/em, 12.88 mS/cm, 11.8 ms/cm |
| Temperature Compensation | 32 °F — 212 °F (0 °C – 100 °C), Manual or Automatic |
| Temperature Coefficient | 0.0 %/°C – 10.0 %/°C |
| Compensation Modes | Linear or Pure Water |
| Cell Constant | K=0.1, 1, 10 or User-defined |
| TDS | |
| Range | 0 ppt – 100 ppt (Max. 200 ppt, depending on factor setting) |
| Accuracy | +-1%FS |
| TDS Factor | 0.1 – 1.0 (Default 0.5) |
| Salinity | |
| Range | 0 ppt — 10 ppt (Max. 80 ppt) |
| Accuracy | +-1%FS |
| Measurement Modes | Seawater or Practical Salinity |
| Resistivity | |
| Range | 0 MQ – 100 MQ |
| Accuracy | +-1%FS |
| Resolution | 0.01, 0.1, 1 |
| Dissolved Oxygen | |
| Range | 0.00 mg/L – 20.00 mg/L (or ppm) |
| Accuracy | +-0.2 mg/L |
| Resolution | 0.01 mg/L |
| Calibration Points | 1 or 2 points |
| Temperature Compensation | 32 °F – 122 °F (0 °C – 50 °C), Automatic |
| Pressure Correction | 60.0 kPa – 112.5 kPa, 450 mm Hg – 850 mm Hg |
| Salinity Correction | Og/L-50 g/t |
| Saturation of Oxygen | |
| Range | 0.0 % – 200.0 % |
| Accuracy | +-2.0 % |
| Resolution | 0.1%,1% |
| Temperature | |
| Range | 32 °F — 221 °F (0 °C – 105 °C) |
| Accuracy | +0.5 °C, 0.9 °F |
| Resolution | 32118 F (0.1 °C) |
| Calibration Points | 1 point |
| Calibration Range | Measured value +(10 °C) 50 F |
| Others | |
| Hold Function | Manual or Automatic |
| Stability Conditions | Low or High |
| Calibration Due | 0 to 31 days |
| Power Off | Manual or Automatic (10 minutes, 20 minutes, 30 minutes) |
| Reset Function | Yes |
| Memory | Stores up to 500 data sets |
| Output | USB Communication Interface |
| Connector | BNC, 6-pin Mini Plug |
| Display | LCD |
| Power Requirements | DC 5 V, using AC adapter, 220 V AC/50 Hz |
| Dimensions | 8.2 in x 7.4 in x 2.3 in (210 mm * 188 mm x 60 mm) |
| Weight | 3.3 Ibs (1.5 kg) |
