23
ONE-POINT CALIBRATION
• Two setup options are available: “Pnt” and “OFFS”.
• If the “Pnt” option is selected, the adjacent slopes will
be reevaluated.
• If the “OFFS” option is selected, an electrode offset
correction is performed keeping unchanged the existing
slopes.
• Proceed as described in the “Five-point calibration”
section and press CAL after the first accepted
calibration point. The instrument will memorize the
single point calibration data and return to normal
measurement mode.
Notes:
• Press RANGE to toggle between pH buffer and
temperature reading during calibration.
• Each time a buffer is confirmed, the new
calibration parameters replace the old data of
the corresponding buffer.
• If current confirmed buffer has no correspondence
in the stored calibration, it will be added to the
existing calibration data. If the stored calibration
is a five-point procedure, the instrument will ask
which buffer should be replaced.
34
LOG-ON-DEMAND
This feature allows the user to log pH and Rel mV
measurements, together with temperature.
Moreover, for
AD132
all logged data can be transferred
to a PC or printed through the RS232 port.
Both models
AD131
and
AD132
can store up to 500
samples into memory.
LOGGING
To store the current reading into memory,
press the STORE key from measurement
mode.
The instrument displays the current date (mm.dd) on the
primary LCD, while the secondary LCD shows the
record number with the “LOG” tag blinking for a few
seconds and then the number of free locations.
