Description
1, Production introduction
Economical portable pH meter with mV measurement mode, 1 to 3 points calibration, automatic temperature compensation, setup menu contains 7 options, accuracy: 0.01 pH.
2, Features
• Economical portable pH meter is equipped with a backlit LCD display.
• 1 to 3 points calibration with automatic recognition for USA and NIST buffers.
• Automatic electrode diagnosis helps the user decide whether to replace the pH electrode.
• Automatic temperature compensation ensures accurate readings over the entire range.
• Auto-read function senses and locks the measurement endpoint.
• Auto-power off effectively conserves battery life.
• Setup menu allows setting the pH buffer set, number of calibration points, temperature unit,
etc.
• Reset function automatically resumes all settings back to the factory defaults.
• Expanded memory stores or recalls up to 100 data sets.
• USB communication interface for data transfer or connecting a power adapter to the meter.
3, Specification
|
Model |
LH-220 |
|
pH |
|
|
Range |
-2.00~20.00pH |
|
Accuracy |
±0.01pH |
|
Resolution |
0.01pH |
|
Calibration Points |
1 to 3 points |
|
pH Buffer Options |
USA (pH4.01/7.00/10.01) or NIST (pH4.01/6.86/9.18) |
|
mV |
|
|
Range |
±1999mV |
|
Accuracy |
±1mV |
|
Resolution |
1mV |
|
Range |
0~105°C, 32~221°F |
|
Accuracy |
±0.5°C, ±0.9°F |
|
Resolution |
0.1°C, 0.1°F |
|
Offset Calibration |
1 point |
|
Calibration Range |
Measured value ±10°C |
|
General |
|
|
Temperature Compensation |
0~100°C, 32~212°F, manual or automatic |
|
Stability Criteria |
- |
|
Calibration Due Alarm |
- |
|
Memory |
Stores up to 100 data sets |
|
Output |
USB communication interface |
|
Connector |
BNC |
|
Display |
3.5" custom LCD |
|
Power |
3×1.5V AA batteries or DC5V power adapter |
|
Battery Life |
Approximately 150 hours (Turn off the backlit) |
|
Auto-Power Off |
30 minutes after last key pressed |
|
Dimensions |
170(L)×85(W)×30(H)mm |
|
Weight |
300g |
