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High precision digital Waterproof PH meter Tester
1.High Precision2.Low energy consumption 3.High accuracy 4.Competitive price 5.Improve the quality of service
Specification:
1*measure range: 0.00—14.00ph
2*resolution:0.01ph
3*accuracy:+/_0.01ph
4*Automatic temperature compensation: 0°C--60°C
5*Power supply: 2*1.5V(AG13 battery)
6*operating temperature: 0°C--60°C
7*calibration: manual at one point through trimmers
8*dimension: 155mm*29mm*16mm
9*weight: 48g
10.Battery install
If the meter can not be switched on or the display fades, to change batteries, pull out the battery case and replace batteries. Pay attention to the polarity of battery.
11.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 repair will be effected free of charge.
Calibration
immerse the electrode in PH6.86(under the temperature of 25°C ) standard buffer solution of phosphate, and gently shake the electrode.
regulate the trimmer with a screwdriver until the buffer solution value corresponding to the measurement temperature is obtained.
immerse the electrode in ph 4.01 or ph 9.18 the standard buffer solution of borax.
after about one minute, until the buffer solution value corresponding to the measurement temperature is obtained.
Important :
the instrument’s ph range must be re-calibrated whenever.
approximately one month has passed from the last calibration.
the electrode has been used in particularly taxing conditions.
the utmost accuracy is required.
High precision digital Waterproof PH meter Tester