Troubleshooting; Care And Cleaning; A) Meter; B) Electrode - VOLTCRAFT PHT-600 Bedienungsanleitung

13. Troubleshooting

Problem
At 1-point calibration "Err"
shows on the LCD display.
At 2 or 3-points calibration
"Err" shows on the LCD
display

14. Care and Cleaning

a) Meter

• The meter is generally maintenance free.
• Do not use any aggressive cleaning agents, rubbing alcohol or other chemical solutions as
they can cause damage to the device housing and malfunctioning.
• Clean the product with a dry, fibre-free cloth.

b) Electrode

• Distilled water along with vigorous stirring, or the use of a squirt bottle is sufficient for normal
cleaning.
• Never rub, brush, or use abrasive materials. Gently pat the electrode dry using a clean,
soft, lint-free cloth.
• The probe should be stored in the soaker bottle (11) and filled to a third with soaking solution.
Suggestion
• Check that a neutral pH 7 buffer solution is used.
• The buffer may be contaminated, use fresh solution.
• The electrode may be defective, replace it.
• Check the buffer pH is not the same as the one used
for the previous point.
• The buffer may be contaminated, use fresh solution.
• The electrode may be defective, replace it.
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