Operating manual
E3907
BE 984 i
15
Adjustments in the SCI Mode
SCI OFF: At this adjustment a transfer of measured values from the E3907 is disabled. The E3907 can be
controlled however with the E3907-commands.
HAND: In this mode a measured value is issued via the serial interface when the Enter key is pressed at the E3907.
AUTO: In this mode a measured value is issued via the serial interface in the adjusted delay
TRIGGER: At a trigger event In this mode, a measured value is written in the logger. Since the trigger pulses may
occur in 10ms raster and additional time-logg is not possible. The flank of the trigger pulse must be on HIGH for at
least 4ms. Then it must be on LOW for at least 6ms.
WINDOW: This mode reacts to increasing, respectively decreasing flanks. With a decreasing flank the logging of
the measured values is started. Now the measured values are written in the data logger in 1ms raster. A decreasing
flank ends the recording.
4.6.4 Operation and function principle of the E3907-Data Logger
The data logger can, if the E3907 is not in the measuring mode, be read by the menu option 2,7 LOGG - SENDING
or by the command "A" via the interface. Outside of the measuring mode the data logger is deleted only by the
menu option 2,7 LOGG - DELETION.
If the E3907 is in the measuring mode, the data logger can be read with the command "A" and be deleted with the
command "B".
If the measuring mode is being switched on from the menu option 1MEASURING-sensor selection,
the starting time of the measurement, the current sensor designation, the final value of the measuring range, the
adjusted measuring rate and the logger mode (e.g.: AUTO 1ms) are saved in the logger.
NOTE: All previous measured values are deleted here!
With the read-out of the data logger via the serial interface different adjustments are sent from the E3907.
a) Company header
b) Starting time of the measurement
c) Sensor designation
d) Final display value
e) Adjusted measuring rate
f) Adjusted logger mode
g) Thereafter the measured values
In the HAND MODE the measured values are always logged with the time. The measured value is logged at the
data in the AUTOMODE. A time can be assigned to each measured value by the indicated starting time.
Since in GRAPHS and in the WINDOW MODE trigger events smaller than 1sec can occur, an additional time log is
not possible.
Adjustments in the Logg Mode
LOGG OUT: Here the data logger is switched off. The logg mode in the measuring mode is switched to "LOGG
OUT" as soon as the entire data logger has been edited.
HAND:
In this mode a measured value is written into the data logger when the enter key was pressed at the
E3907. By an additional logg of time, there is a time assignment for each measured value.
AUTO :
In this mode in the adjusted Delay a measured value is written into the data logger. By the stored
starting time there is a time assignment for each measured value.
GRAPH:
In this mode at a trigger event a measured value is written into the logger. Since the trigger pulses
occur in 10ms raster, an additional logg of the time is not possible. The flank of the trigger pulse must
stand on HIGH for 4ms at least. Afterwards on LOW for at least 6ms.
