Measurement Parameters
• 900P: pH, mV, relative mV , conductivity,
TDS, DO, temperature, ion concentration
Feature
pH
• Multiparameter water quality meter is equipped with a 3.5 inches 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 offset
ORP
• 1 point offset calibration allows adjusting the displayed value to a known standard• Relative and absolute millivolt modes ensure the reliable ORP measurements
Conductivity/TDS
• 1 to 5 points calibration with automatic recognition for conductivity standards• Selectable cell constant, reference temperature, TDS factor, linear and pure water compensations, seawater and practical salinity measurement modes
• Automatic electrode diagnosis shows the calibration points and factors
Dissolved Oxygen
• 1 or 2 points calibration using the air-saturated water or zero oxygen solution• Salinity and barometric pressure compensations eliminate the measurement error
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.
General Features
• Automatic temperature compensation ensures accurate readings over the entire range• Auto-Read function senses and locks the measurement endpoint• Calibration due alarm prompts user to calibrate the meter regularly• Auto-Power Off effectively conserves battery life
• Setup menu allows setting the number of calibration points,resolution,stability criteria, temperature unit, date and time, etc.
• Reset function automatically resumes all settings back to the factory defaults• Expanded memory stores or recalls up to 500 data sets• USB communication interface is easy to transfer data to PC• Multi-mode power scheme (batteries, power adapter and USB port) ensures that using the meter smoothly
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 |
|
Ion Concentration |
Nitrates,fluorides; chlorides |
|
Range |
0.00 to 19999 (depending on the range of ISE) |
|
Resolution |
0.001, 0.01, 0.1, 1, automatic |
|
Accuracy |
±0.5% F.S. (monovalent), ±1% F.S. (divalent) |
|
Calibration |
2 to 5 points |
|
Measurement Units |
ppm, mg/L, mol/L, mmol/L |
|
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 |
.
EN
