HW221 Precision Laboratory pH Meter
Precision laboratory pH meter, 3-point button calibration, automatic endpoint locking, built-in system menu with customizable 5 functional parameters. The instrument is suitable for measuring the pH and mV values of samples, with a measurement accuracy of 0.01pH.
HW221 Precision Laboratory pH Meter Functional features:
Precision laboratory pH meter equipped with a large LCD backlit display screen.
1 to 3 point key calibration, automatically identifying USA or NIST standard buffer solutions.
Automatic electrode slope display, prompting users whether to replace the pH electrode.
Automatic temperature compensation ensures accurate measurement across the full range.
Automatic endpoint locking, retaining stable measurement values for easy browsing and recording.
Manual temperature calibration improves the accuracy of instrument temperature measurement.
• Optional temperature units (° C or ° F) to cater to the usage habits of different countries.
Built in system menu, customizable pH buffer standard, number of calibration points, data lock mode, timed shutdown mode, and other 5 functions
Capable of parameters.
One click reset, automatically restoring the instrument to factory default settings.
Application areas:
• Water and wastewater treatment
• Research and Education
• Water quality research and environmental monitoring
• Other industrial applications
Technical Parameter
Model number |
|
HW221 |
pH |
|
|
Measurement range |
|
-1.00~15.00pH |
Measurement accuracy |
|
±0.01pH |
Display resolution |
|
0.01pH |
Calibration point |
|
From 1 to 3 o'clock |
Use calibration solution |
|
USA (pH 4.01/7.00/0.01) or NIST (pH 4.01/6.86/9.18) |
Temperature compensation range |
|
0~100°C, 32~212°F |
Temperature compensation method |
|
Manual or automatic |
mV |
|
|
Measurement range |
|
-1999~1999mV |
Measurement accuracy |
|
±1mV |
Display resolution |
|
1mV |
Temperature |
|
|
Measurement range |
|
0~105°C, 32~221°F |
Measurement accuracy |
|
±1°C |
Display resolution |
|
0.1°C |
Calibration point |
|
one o'clock |
Temperature unit |
|
° C, ° F, optional |
Other |
|
|
Data locking |
|
Manual or automatic endpoint locking |
Shutdown mode |
|
Manual or automatic (after 180 minutes without button operation) |
One click reset function |
|
contain |
Connector |
|
BNC |
Display screen |
|
Customized LCD display screen (135 × 75mm) |
Power type |
|
DC9V power adapter |
External dimensions |
|
210 (length) × 205 (width) × 75 (height) mm |
Instrument weight |
|
1.5kg |