China pH Meter Water Quality Analysis Meter Automatic pH Meter

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.

* Help message as a operational guide that helps you quickly using the meter(for PH-220).

* Manual temperature calibration improves the measurement accuracy of meter(for PH-320).

* Selectable temperature unit (°C or°F ) meets different application requirements(for PH-320).

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.

Ion Concentration Mode(For PHBattery, Storage Battery & Charger -320):

* 2 to 5 points calibration providing the 8 concentration points can be selected.

* Automatically recognize ion electrodes, does not need to specify the type of ion.

* Direct ion concentration readout simplifies the elaborate measurement process.

* Selectable multiple concentration units include the ppm, mg/L and mol/L.Technical Parameters:

Model

PH-220

PH-221

PH-320

pH Range

-2.00~16.00pH

-2.000~20.000pH

-2.000~20.000pH

pH Accuracy

±0.01pH

±0.002pH

±0.002pH

Resolution

0.01pH

0.1, 0.01, 0.001pH, Selectable

0.1, 0.01, 0.001pH, Selectable

Calibration Points

2 points

1~5 points

1~5 points

Calibration Solutions

USA (pH4.01/7.00/10.01)

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

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/Petroleum Equipment & Machinery 6.79/9.23/12.75) or User-defined

Temperature Compensation

0~100°C, 32~212°F, Manual or Automatic

0~100°C, 32~212°F, Manual or Automatic

0~100°C, 32~212°F, Manual or Automatic

mV Range

-1999~1999mV

-1999.9~1999.9mV

-1999.9~1999.9mV

mV Accuracy

±1mV

±0.2mV

±0.2mV

Resolution

1mV

0.1, 1mV, Selectable

0.1, 1mV, Selectable

Calibration Points

/

1 point (only for Relative mV mode)

1 point (only for Relative mV mode)

Ion Concentration Range

/

/

0.001~19999ppm, mg/L, mol/L (Chemical Equipment & Machinery Refer to the range of ISE)

Ion Concentration Accuracy

/

/

±0.5% F.S (Monovalent),±1% F.S (Divalent)

Calibration Points

/

/

2~5 points (0.001, 0.01, 0.1, 1, 10, 100, 1000, Hardware Accessories 10000ppm, mg/L, mol/L)

Temperature Range

0~100°C, 32~212°F

0~105°C, 32~221°F

/

Temperature Accuracy

±1°C

±0.5°C,±0.9°F

/

Resolution

0.1°C

/

/

Hold Function

Manual

/

/

Memory

Stores up to 50 data sets

Stores up to 500 data sets

Stores up to 500 data sets

Output

/

USB Communication Interface

USB Communication Interface

Connector

BNC

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Power Requirements

1x9V/800mA battery

3x1.5V "AA" batteries or DC5V power adapter

3x1.5V "AA" batteries or DC5V power adapter

Dimensions(W*D*H)

185*88*32mm

170*85*30mm

Package Size(W*D*H)

475*155*350mm

Net Weight

300g

Gross weight

2kg