- -
6
will blink to remind the user that the instrument can only be turned off by pressing the <ON/OFF>
key.
The automatic turning off function is disabled when external power is used. On the other
hand, it cannot be disabled when the batteries are discharged.
ENTER key
In the menu, the ENTER key confirms the current parameter and then goes to the next one. Pressed
together with the ON/OFF, disables the automatic turn off.
MENU key
The first menu item is accessed by initially pressing on the MENU key, press ENTER to go the
following. To modify the item displayed , use the arrows key (
and
). The current value is
confirmed by pressing the ENTER key and the display moves on to next parameter. If pressing
ESC the setting is cancelled.
To exit the menu, press the MENU key at any time.
The menu items are listed in this order:
1)
Management of memorized data
: the message "
LOG_DUMP_or_ERAS
"
(Transfer data
or erase)
is scrolled in the comment line. The center figure reports the number of free mem-
ory pages (FREE). All memory data are permanently erased by pressing SE-
RIAL/EraseLOG. By pressing LOG/DumpLOG, the data transfer of the logged data on the
serial port is started: the "BAUD-RATE" must have previously been set to the maximum
value (please see the menu items described below and the paragraph "STORING AND
TRANSFERRING DATA TO A PERSONAL COMPUTER" on page 29).
2)
Identifier of the sample being measured
: it is an automatically increased progressive
number associated with the single PRINT function (print interval set to 0). The index ap-
pears in the single sample printing together with date, time, pH or mV and temperature
measured values. This menu item allows the value of the first sample to be set: each time the
PRINT key is pressed, the identification ID in the printing is increased by 1 allowing pro-
gressive measurement of all measured samples. If the Auto-Hold function, described below
in this chapter, is enabled, the print time interval is forced to zero. Pressing SERIAL only
causes the print to occur when the measurement has stabilized (HOLD symbol still). Later, it
is possible to repeat the print at will, but while the HOLD mode is on, the sample identifier
number is not increased. This is useful when more labels must be printed with the same
identification code without increasing the code each time.
The message "SMPL ID UNT=RSET SER=PRNT" is scrolled in the comment line: using
the arrows (
and
) the currently measured sample identifier value can be changed. By
holding the REL/
key down the proposed number is rapidly set to zero.
The instrument's heading information will be printed using the SERIAL key.
3)
AUTO-HOLD function
: the instrument normally operates in
continuous view
mode (de-
fault setting). In this mode the displayed measurement is updated every second. If the Auto-
Содержание Delta OHM HD3405.2
Страница 2: ...2 Temperature pH meter HD3405 2...
