Description
Features
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
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
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.
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
Measurement Parameters
903P: pH, mV, relative mV, DO, temperature
Specification
|
Model |
LH-903P |
|
pH |
|
|
Range |
-2.000 to 20.000pH |
|
Resolution |
0.001, 0.01, 0.1pH, selectable |
|
Accuracy |
±0.002pH |
|
Calibration Points |
1 to 5 points |
|
Dissolved Oxygen |
|
|
DO Range |
0.00 to 20.00mg/L |
|
Resolution |
0.01, 0.1mg/L, selectable |
|
Accuracy |
±0.2mg/L |
|
% Saturation of Oxygen |
0.0 to 200.0% |
|
Resolution |
0.1, 1%, selectable |
|
Accuracy |
±2.0% |
|
Calibration Points |
1 or 2 points |
|
Pressure Correction |
60.0 to 112.5kPa/450 to 850mmHg, manual |
|
Salinity Correction |
0.0 to 50.0g/L, manual |
|
Temperature |
|
|
Range |
0 to 105°C/32 to 221°F |
|
Resolution |
0.1°C/0.1°F |
|
Accuracy |
±0.5°C/±0.9°F |
|
Offset Calibration |
1 point |
|
Calibration Range |
Reading ±10°C |
|
General Specifications |
|
|
Temperature Compensation |
0 to 100°C/32 to 212°F, manual or automatic |
|
Calibration Due Alarm |
1 to 31 days or off |
|
Auto-Power Off |
10, 20 or 30 minutes after last key pressed |
|
Memory |
Stores up to 500 data sets |
|
Output |
USB communication interface |
|
Connector |
BNC, 6-pin nimi-DIN, 3.5mm jack socket |
|
Display |
Custom LCD (80×60mm) |
|
Power |
3×1.5V AA batteries or DC5V power adapter |
|
Dimensions |
170(L)×85(W)×30(H)mm |
