3
KEY PAD
Key
Description
Power
key. Press and hold for 3 seconds to
power on the meter. Pressing this key will also
turn the instrument off.
Up and
down arrow
keys are used to
manually enter temperature values.
They have no effect on the unit
when operating in ATC mode.
Mode
Mode
selects display mode. Pressing
this key changes the display sequentially
to display pH-AUTO, mV-AUTO, pH and
mV. The calibration values will not be
affected by changing the display modes.
Press the Mode key to exit a pH calibration
early (i.e. complete a 1 or 2 point calibration).
Clear
Clear
key. Press to clear any
errors that are displayed.
Press and hold for 2 seconds to clear all
calibration values stored in the internal
memory. After 2 seconds the unit will
enter the pH-AUTO mode. “AUTO” and
“CAL” will be displayed and one of the
buffers in the pre-selected buffer set will
start to flash. This means that the unit
must be calibrated again before use.
Stand/Slope
is used for pH calibration
of the unit. Pressing and holding
the Stand key while turning on the
power will change the buffer set.
Meas.
Effic.
Meas. / Effic.
is used to bring the unit out of
the AUTO condition when operating in the
pH-AUTOLOCK or mV-AUTOLOCK mode.
Press and hold this key for 5 seconds for
the electrode efficiency to be displayed.
Stand
Slope