Product name: Pocket-size pH Meter/pH Tester/pH Sensor  PH-107   

Model: PH-107           

Technical data

Measuring range: 0.0~14.0pH

Resolution: 0.1pH

Accuracy: ±0.2pH

Calibration: 1point

Working condition : 0-60°C

Power: 3X 1.5v alkaline

Dimension: 180*65*33mm

Weight: 109g

Feature: This is an economic type ph meter with high precision, digital readout, large LCD display screen, high sensitivity. Very convenient to test ph value for lab and industry and other aspects, because of the small size and light weight.

Operation: 

1, Remove the protective cap. Do not be afraid if white crystals appear around the cap. This is normal with pH electrodes and they will be dissolved when rinsed with water.

2, Turn the meter on by sliding the switch on the top.

3, Immerse into solution up to the max immersion level.

4, Stir gently and wait until the display stabilized.

5, After use, switch off pH meter, use the water clean the electrode and replace the protective cap.

Notice:

Do not use distilled or deionized water for storage purposes.

Large fluctuations in readings could be due to non-calibration, dry electrode or rundown batteries.

Put electrodes in 3mol/L KCL solution for 12 hours for every 2-3 weeks, to make sure the electrode is in good condition and accuracy.

Battery replacement:

If calibration can not be performed or the display fades, batteries must be replaced. Slide off the battery compartment cover and replace all four 1.5V alkaline batteries, while paying attention to the correct polarity.

Batteries should only be replaced in a non-hazardous area and using the battery type specified in this instruction manual.

Warranty: 

These instruments are warranted from all defects in material and manufacturing for a period of one year from the date of purchase. If during this period, the repair or the replacement of parts is required where the damage is not due to negligence or erroneous operation by user, please return the parts to either dealer or our offices, and the repair will be effected free of charge.