Alla France Pocket PH Meter

SPECIFICATIONS:
POCKET PH-METER Waterproof
Replaceable electrode
Range : 0-14 pH
Resolution : 0.1 pH
Accuracy : ± 0.1 pH / ±1digit
Self calibration : pH 7.00
2x AAA Batteries

In the Box:
*buffer solutions for pH 7.00
*instructions for use

Instructions:

CALIBRATION
Rinse the electrode with pure water and wipe it dry. Immerse the
electrode in the standard buffer solution pH 7.00. Stir gently and wait.
When the display is stable, press the key for about two seconds until “
CAL ” appears on the LCD. Then calibration value“7.00” will flash and the
calibration will be completed after a few seconds.

MEASUREMENT
Rinse the electrode with pure water and wipe it dry. Immerse the
electrode in the sample solution. Stir gently and wait until a stable
reading can be obtained. After measurement, rinse the electrode with
pure water, wipe it dry and replace the protection cap.

The instrument can be continuously used for 1 to 2 weeks or longer after
calibration.The sponge in the protection cap should always be kept wet
by adding pure water, (but not too much to overflow), to maintain the
activation of the electrode.To ensure reliability of calibration, pH
standard buffer solution should be reliable and should be renewed as
necessary. Maintenance is necessary for the tip of the electrode as it will
become dirty after frequent use. Wash the bulb and the area around it
using a small paint brush dipped in soapy water, then rinse the bulb with
pure water. Then wait several hours before re-calibrating the instrument.
The approximate lifespan of a pH electrode is about one year. The
electrode should be immediately replaced by a new one when
measuring accuracy and response speed fail to meet user’s requirement.
Replacing method: There is an 8mm screw thread on the head of the
electrode. To avoid the silicon ring falling off, when going through the
screw thread unscrew the electrode by turning it in anti clockwise
direction 7-8 times, then gently pull out the electrode. Then carefully
insert the new electrode, and turn in a clockwise direction until it fits
tightly.

When not in use for 10 minutes or more, the instrument will
automatically switch off. Insert a new battery when the icon “ ”
appears on the LCD (The electrode reference number is 92200-007-re) .