Portable pH/ORP Meter PH-221

Portable pH/ORP Meter PH-221

Application:

Economy portable pH meter, 2 points calibration, automatic temperature compensation, system menu contains 2 optional parameters. The meter is used for measuring the pH and millivolt of samples. Accuracy: 0.01pH.

Features:

* Stability indicator automatically shows current measurement status.

* Auto-Hold function freezes stable reading for easy viewing and recording.

* Automatic electrode diagnosis shows offset and electrode slope.

* Reset feature automatically resumes parameters back to factory default options.

pH Mode (For PH-221/320):

* 1 to 5 points push-button calibration with auto-buffer recognition.

* Automatic electrode slope display helps user decide whether to replace sensor.

* Automatic Temperature Compensation provides accurate measured values.

* Calibration Due Reminder prompts you to calibrate the meter regularly.

ORP Mode(For PH-221/320):

* 1 point offset calibration allows adjusting the displayed value to a known standard.

* Relative and absolute mV measurement modes provide accurate ORP readings.

Model	PH-221
pH Range	-2.000~20.000pH
pH Accuracy	±0.002pH
Resolution	0.1, 0.01, 0.001pH, Selectable
Calibration Points	1~5 points
Calibration Solutions	USA (pH1.68/4.01/7.00/10.01/12.45), NIST (pH1.68/4.01/6.86/9.18/12.45), DIN (pH1.09/4.65/6.79/9.23/12.75) or User-defined
Temperature Compensation	0~100°C, 32~212°F, Manual or Automatic
mV Range	-1999.9~1999.9mV
mV Accuracy	±0.2mV
Resolution	0.1, 1mV, Selectable
Calibration Points	1 point (Only for Relative mV mode)
Ion Concentration Range	/
Ion Concentration Accuracy	/
Calibration Points	/
Temperature Range	0~105°C, 32~221°F
Temperature Accuracy	±0.5°C,±0.9°F
Resolution	/
Hold Function	/
Memory	Stores up to 500 data sets
Output	USB Communication Interface
Connector	BNC
Power Requirements	3×1.5V “AA” batteries or DC5V power adapter
Dimensions(W*D*H)	170*85*30mm
Package Size(W*D*H)	475*155*350mm
Net Weight	300g
Gross weight	2kg

• Portable pH/ORP Meter PH-221