Description
Product introduction
High-performance multiparameter Water Quality meter contains 8 measurement modes, suitable for measuring pH, ORP, ion concentration, conductivity, TDS, salinity, resistivity and dissolved oxygen.
Features
pH Mode:
• Portable multiparameter Water Quality meter is equipped with a backlit LCD display.
• 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers.
• Automatic electrode diagnosis shows the pH slope and zero offset.
Conductivity/TDS/Salinity/Resistivity Modes:
• 1 to 5 points calibration with automatic recognition for conductivity standards.
• Selectable cell constant (K=0.1/1/10), reference temperature (20/25°C), TDS factor, linear and
pure water compensations, seawater and practical salinity measurement modes.
Dissolved Oxygen Mode:
• 1 or 2 points calibration using the air-saturated water or zero oxygen solution.
• Salinity and barometric pressure compensations eliminate the measurement errors.
ORP Mode:
• 1 point offset calibration allows adjusting the displayed value to a known standard.
• Relative and absolute millivolt modes ensure the reliable ORP measurements.
Ion Concentration Mode:
• 2 to 5 points calibration, including the selection of 8 concentration points.
• Automatic electrode diagnosis shows the calibration points and slopes.
• Direct ion concentration readout simplifies the measurement process.
• Selectable concentration units (ppm, mg/L, mol/L) and ionic valency.
Specification
|
Model |
LH-900P |
|
pH |
|
|
Range |
-2.000~20.000pH |
|
Accuracy |
±0.002pH |
|
Resolution |
0.001, 0.01, 0.1pH, selectable |
|
Calibration Points |
1 to 5 points |
|
mV |
|
|
Range |
±1999.9mV |
|
Accuracy |
±0.2mV |
|
Resolution |
0.1, 1mV, selectable |
|
Calibration Points |
1 point |
|
Measurement Modes |
Relative or absolute mV |
|
Conductivity |
|
|
Range |
0.01~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm |
|
Accuracy |
±0.5% F.S |
|
Resolution |
0.001, 0.01, 0.1, 1, automatic |
|
Calibration Points |
1 to 5 points |
|
Calibration Solutions |
10µS/cm, 84µS/cm, 1413µS/cm, 12.88mS/cm, 111.8mS/cm |
|
Temperature Coefficient |
Linear (0.0~10.0%/°C) or pure water compensation |
|
Cell Constant |
K=0.1, 1, 10 or custom |
|
Reference Temperature |
20°C or 25°C |
|
TDS |
|
|
Range |
0~10.00, 100.0, 1000ppm, 10.00, 100.0ppt (Max. 200ppt) |
|
Accuracy |
±1% F.S |
|
Resolution |
0.01, 0.1, 1, automatic |
|
TDS Factor |
0.1~1.0 (Default 0.5) |
|
Dissolved Oxygen |
|
|
DO Range |
0.00~20.00mg/L |
|
Accuracy |
±0.2mg/L |
|
Resolution |
0.01, 0.1mg/L, selectable |
|
% Saturation of Oxygen |
0.0~200.0% |
|
Pressure Correction |
60.0~112.5kPa, 450~850mmHg, manual |
|
Temperature |
|
|
Range |
0~105°C, 32~221°F |
|
Accuracy |
±0.5°C, ±0.9°F |
|
Resolution |
0.1°C, 0.1°F |
|
Calibration Range |
Measured value ±10°C |
|
General |
|
|
Temperature Compensation |
0~100°C, 32~212°F, manual or automatic |
|
Memory |
Stores up to 500 data sets |
|
Power |
3×1.5V AA batteries or DC5V power adapter |
|
Dimensions and Weight |
170(L)×85(W)×30(H)mm, 300g |
