Product Description:

An electronic instrument used to accurately measure the acidity or basicity of a liquid and displays the pH reading  through an electronic meter. The PH-251 is a fully equipped, precise measure range from 0.00 to 14.00 PH and provides a BNC type REPLACEABLE PH ELECTRODE so you won’t have to buy the whole unit when the pH electrode malfunctions. Our compact and light portable pH meters provide quick, complete and precise pH measurements.

This product meets virtually all pH requirements in research, pharmaceutical, chemical and environmental applications. The units can also be use in laboratories, industry applications and aquariums and covers the complete pH value range.

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Features:

• Compact and light weight for mobility
• It features a fast response and easy to calibrate and REPLACEABLE pH electrode
• A BNC connection for use with a replaceable electrode is also provided for easy connection
• With accurate and large display system for ease of use
• Easy push power button and calibration with the mini-screw driver
• Comes with manual which contains instructions on how to best utilize PH-251
• Provides an adaptor for US or UK or Australia or Europe
  

 

Specifications:

Measure range:	0.00~14.00 PH
Resolution:	0.01PH
Accuracy:	±0.1PH (| T1 - T2 | <5°C)
	±0.2PH (| T1 - T2 | >5°C)
	(T1 -- The environment temperature; T2 -- The test liquid temperature)
Operating Temperature:	0°C~50°C
Power Supply:	DC 6V
Dimension:	112mm x 86mm x 57mm
Weight:	345g

 

Operating Information:

• Connect the power supply. Connecting the sensor.
• Slide the ON/OFF switch to "ON" position.
• Remove the protective cap of electrode. First rinse the electrode with fresh water, and wipe it filter-paper.
• Immerse the electrode in the solution to be tested.
• Wait for the reading to stabilize
• After use, Turn off the meter. And rinse the electrode with water to minimize contamination. Replace the protective cap after use.

PH CALIBRATION

• Immerse the electrode in pH 6.86 (under the temperature of 25°C) standard buffer solution of phosphate, and gently shake it.
• Allow the reading to stabilize and with a small screwdriver turn the calibration trimmer until the display shows is corresponding the calibration solution.
• Immerse the electrode in pH 4.01 or pH 9.18 the standard buffer solution of borax.
• After one minute, until the buffer solution value is corresponding the measurement temperature is obtained.
  

 

Accessories: (included)

• pH Electrode
• Operations Manual
• Mini-screw driver
• Power Adaptor for Australia, US, UK, Europe

 

Packaging:   White gift box

 

Warranty:  2 years warranty