Jenway 3540 - Manual (Page 52)

calibration reminder interval can be set from 1 hour to 999 hours and can only be
cleared by carrying out a new calibration. To set the calibration reminder interval
press the down arrow key in the Calibration Reminder sub-menu to highlight the Cal
Reminder Interval (Hr); then press the Enter key. A data entry box will appear in the
Cal Reminder Interval data entry box
centre of the screen. The box around the least significant digit will be flashing to
indicate that this digit can be changed by pressing the up or down arrow keys. When
this is set to the desired value the right or left arrow keys can be used to move the
flashing highlight to the other digits, which in turn can be adjusted to the desired
levels with the up or down arrow keys. When all digits are set to the desired levels
press the Enter key to confirm the setting and return the highlight to the left-hand side
of the menu. Use the Escape [ESC] key to return to other menu levels or continue
with setting the Calibration Reminder options as follows.
Cal Reminder Audible Alarm
When the cal reminder interval has elapsed a visual warning is displayed in place of
the relevant reading, to enhance this warning an audible alarm that bleeps every 5
seconds can also be enabled. This audible warning will be active whenever the pH
tab on the menu bar is selected. To enable the audible alarm, press the down arrow
to highlight the Cal Reminder Audible Alarm option on the Cal Reminder sub-menu,
then press the Enter key. The current selection is highlighted and the up or down
arrow keys can be used to toggle between the enabled and disabled options. Press
the Enter key to accept the desired setting when it is highlighted on the display. Use
the Escape [ESC] key to move to other menu levels or return to the main
measurement screen.
5.40
pH Alarms Set Up
Two alarm levels are available for each mode of operation. One is a HIGH level with
the alarm being tripped when the measured value goes ABOVE the high level
entered. The other is a LOW level with the alarm being tripped when the measured
value goes BELOW the low level entered.
With the alarm function enabled a visible indication is given, when the alarms are
tripped, via the alarm bell icon on the display with an upward pointing arrow when the
high alarm is tripped and downward pointing arrow when the low alarm is tripped. It is
also possible to enable an internal audible alarm to complement the alarm bell icon.