12
Notes:
• If the meter displays only dashes "----", the read-
ing is out of range.
• If the stability indicator (hourglass symbol) blinks,
the reading is not stable.
• Make sure the meter is calibrated before taking
measurements.
• If measurements are taken successively in dif-
ferent samples, for accurate reading it is recom-
mended to rinse the probe thoroughly with deion-
ized water before immersing it into the sample.
• TDS reading is obtained by multiplying the EC
reading by the TDS factor, which has a default
value of 0.50. It is possible to change the TDS
factor within the 0.40 to 1.00 range by entering
setup mode and selecting the "tdS" item (see
“Setup” section for details).
25
GOOD LABORATORY PRACTICE
Good Laboratory Practice (GLP) is a set of functions
that allows storage and retrieval of data regarding the
status of the system.
After a successful calibration, the meter automatically
stores the date and time of calibration, the used calibra-
tion solution and the resulting cell constant value.
All this information can be recalled by the user.
To view the last calibration data,
press SHIFT and GLP keys. The
first information appearing on the
LCD is the meter "id" code.
By repeatedly pressing RANGE key,
all GLP data are displayed as shown
in the next pages.
