HT instruments XL424 - Manual (Page 13)

XL423 - XL424
EN - 12
5. How to start a Recording:
• If no recording was performed or if the recording data was already downloaded to a
PC, pressing and keeping the START/STOP key for 3 seconds. The STATUS LED
will be lighting for the same time, than will be stable lighting for 1 second and the
meter will start the recording.
• If the recording data was not already downloaded to a PC but the operator wants
to overwrite these data, pressing and keeping the START/STOP key for 6
seconds. The STATUS LED will be quickly blinking during the key pressing for the
same time, than the LED will be stable lighting for 1 second and the instrument will
start the recording. The old recording will be deleted and overwritten by the new
one. The meter will wait for the next minute beginning (second=00) and the STATUS
LED is double blinking. After that the recording starts and the STATUS LED blinks
every 3 seconds. The instrument is storing the data.
6. During a Recording:
• A STATUS LED 3 seconds blinking meaning that the recording is active and the
instrument is storing the data.
• An ALARM LED 3 seconds blinking means that the batteries are low. During a
recording any RS232 communication is possible.
• During Recording operations RS-232 serial communications to PC is not
possible.
7. Stop a Recording:
• To stop a Recording pressing START/STOP key and keep it pressed for 3 seconds.
The STATUS LED will quickly blinks three times and the instrument will stop the
recording and then stop blinking.
For more details about the blinks of STATUS and ALARM LED meaning, please refer to
the chapter 7.