Description
1, Product Introduction
High-precision laboratory pH meter with mV and relative mV measurement modes, 1 to 5 points calibration, 1000 sets of data storage, setup menu contains 15 options, accuracy: 0.002 pH.
2, Features
• High-precision laboratory pH meter is equipped with a 7 inch TFT display.
• 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers.
• Automatic temperature compensation ensures accurate readings over the entire range.
• Solution temperature coefficient compensates for pure water samples and references the pH
to 25°C.
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.
• Timed interval readings send the measurement data to a PC or printer.
• Limit Alarm automatically alerts when reading exceeds the specified range.
• Calibration due alarm reminds the user to calibrate the meter regularly.
• Calibration log shows the date, time, calibration points, offset and pH slope.
• Password protection prevents the unauthorized calibration and settings.
• Expanded memory stores or recalls up to 1000 data sets.
• Reset function automatically resumes all settings back to the factory defaults.
3, Specification
|
Model |
|
LH-A120 |
|
pH |
|
|
|
Range |
|
-2.000 to 20.000 pH |
|
Resolution |
|
0.001 / 0.01 pH, selectable |
|
Accuracy |
|
±0.002 pH |
|
Calibration |
|
1 to 5 points |
|
pH Buffer Options |
|
USA / NIST / DIN / 5 custom buffers |
|
ORP |
|
|
|
Range |
|
-2000.0 to 2000.0 mV |
|
Resolution |
|
0.1 mV |
|
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 |
|
Stability Criteria |
|
Standard / High-accuracy |
|
Measurement Modes |
|
Continuous / Auto-read measurement endpoint |
|
Timed Interval Readings |
|
10 / 30 / 60 seconds, 10 / 30 minutes or off |
|
Calibration Due Alarm |
|
1 to 31 days or off |
|
High/Low Limit Alarm |
|
Selectable |
|
Password Protection |
|
4 digits |
|
Memory |
|
Stores up to 1000 data sets |
|
Output |
|
USB communication interface |
|
Connector |
|
BNC, 3.5 mm jack socket |
|
Display |
|
7 inch TFT LCD |
|
Power Supply |
|
12V DC power adapter |
|
Dimensions |
|
240 × 220 × 80 mm |
|
Weight |
|
1.7 kg |
