Description
1, Product Introduction
Professional benchtop pH meter, 1 to 5 points calibration, 500 sets of data storage, setup menu contains 9 options, accuracy: 0.002 pH.
2, Features
• Professional benchtop pH meter is equipped with a large 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.
• Automatic temperature compensation ensures accurate readings over the entire range.
• Calibration due alarm reminds the user to calibrate the meter regularly.
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.
Other Features:
• Auto-read function senses and locks the measurement endpoint.
• Setup menu allows setting the pH buffer set, number of calibration points, resolution, stability
criteria, temperature unit, date and time, auto-power off, 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 for data transfer and timed interval readings.
3, Specification
|
Model |
|
LH-920 |
|
pH |
|
|
|
Range |
|
-2.000 to 20.000 pH |
|
Resolution |
|
0.001 / 0.01 / 0.1 pH, selectable |
|
Accuracy |
|
±0.002 pH |
|
Calibration |
|
1 to 5 points |
|
pH Buffer Options |
|
USA / NIST / DIN / 2 custom buffers |
|
ORP |
|
|
|
Range |
|
-1999.9 to 1999.9 mV |
|
Resolution |
|
0.1 / 1 mV, selectable |
|
Accuracy |
|
±0.2 mV |
|
Calibration |
|
1 point |
|
Measurement Modes |
|
Relative / Absolute mV |
|
Temperature |
|
|
|
Range |
|
0 to 105°C / 32 to 221°F |
|
Resolution |
|
0.1°C/°F |
|
Accuracy |
|
±0.5°C / ±0.9°F |
|
Calibration |
|
1 point |
|
Calibration Range |
|
Reading ±10°C/°F |
|
Other Specifications |
|
|
|
Temperature Compensation |
|
0 to 100°C / 32 to 212°F, manual or automatic |
|
Hold Function |
|
Manual / Auto-read measurement endpoint |
|
Stability Criteria |
|
Low / High |
|
Calibration Due Alarm |
|
1 to 31 days or off |
|
Memory |
|
Stores up to 500 data sets |
|
Output |
|
USB communication interface |
|
Connector |
|
BNC, 3.5 mm jack socket |
|
Display |
|
Custom LCD (125 × 100 mm) |
|
Power Supply |
|
5V DC power adapter |
|
Environmental Conditions |
|
0 to 50°C / 32 to 122°F, relative humidity < 80% |
|
Dimensions |
|
210 × 188 × 60 mm |
|
Weight |
|
1.5 kg |
