Yokogawa DR240 - Manual (Page 39)

2-18 IM DR231-01E
2.6 Other Functions
Event/Action Function
Following the occurrence of an event such as remote control signal (12), alarm, internal switch,
chart end signal, timer, match time or key operation, any of the following actions can occur.
• Alarm acknowledge
(refer to page 2-16)
• Alarm reset
(refer to page 2-16)
• Timer reset
(refer to page 2-9)
• Recording start/stop
According to the recording mode and recording format, recording will start/stop
• Manual printout
(refer to page 2-13)
• Digital printout
(refer to page 2-6, 2-7)
• Message printout
(refer to page 2-13)
• Message display
A preset message will be displayed on the main display
• Change of chart speed/recording interval
Chart speed 1 and recording interval 1 will change to chart speed 2 and recording interval 2,
and analog trend and logging recording will be carried out. Usually recording will be carried
out using chart speed 1 (set at the menu displayed after having pressed the CHART key) and
with recording interval 1 (set at the menu displayed after having pressed the SET key at a
touch). Upon the occurrence of an event, recording will be carried out using chart speed 2 and
with recording interval 2 (set at the menu displayed after having pressed the SET key for three
seconds).
• Group trend recording
(refer to page 2-10)
• Saving and reading of measured data, computed data and set-up data
This function is available if the instrument is equipped with a floppy disk drive.This function
enables saving of data to the internal RAM disk or floppy disk and reading of data into the
instrument.
• Starting/stopping of computation, reset, clear, and group reset
This function is available if the instrument is equipped with the computation function or
equipped with a floppy disk drive.This function enables starting and stopping of computation.
• Flag
Valid only for models with mathematical option (/M1.)
Set the flag to 1.
Key-Lock Function
This function prevents alterations by careless key operations. When the key-lock function is
activated, the indicator “KEYLOCK” at the right side of the display will be lit. All key
operations, except power ON/OFF, DISP/MODE key and the cursor, will then be disabled.
However, you can preset whether RECORD/FEED/PRINT/FUNC/M.FUNC1 and M.FUNC2
keys will remain operable even after key-lock has been set. Furthermore, when activating or
releasing the key-lock, a menu for password verification appears to prevent the key-lock to be
used by unauthorized operators.