Xylem WQL-Cond CONDUCTIVITY DATALOGGERS - Manual (Page 57)

WQL-Cond Logging
153 ba75822e01 03/2011
8.5 Signal LED and logger key button
8.5.1 Signal LED to indicate the operating conditions of the logger
Next to the key button on the control panel of the logger there is a signal LED.
When the logger is not connected to the WQL-Log PC program, this red LED
indicates the different operating conditions of the logger as follows:
8.5.2 Logger key button
Next to the signal LED on the control panel of the logger there is a key button.
It has the following functions:
z With the corresponding setting, a logging job can be started by pressing
the key button. The pressure must last for at least 3 seconds, and the LED
lights up when the 3 seconds have passed.
z A running logging job can be stopped by pressing the key button for at
least 3 seconds. If you press the key button again for at least 3 seconds,
a new logging job with the same settings will be started (e.g for logging at
different locations).
z Pressing the key shortly activates the LED that indicates the operating
state of the logger for 15 seconds (see section 8.5.1 S
IGNAL LED TO
INDICATE THE OPERATING CONDITIONS OF THE LOGGER
).
Mode of flashing Operating condition
On for 2 seconds, then off z The logging job is completed.
z The power supply of the logger
was interrupted. The logger has to
be connected to the PC program in
order to set the date and time.
A short flashing every 2 seconds The logger is ready to log and can be
started with the logger key button.
A short flashing every 0.5 seconds The logging job is running (the logger
is logging).
Notes
z
The flashing stops after 15 seconds to save energy. Short pressing of the
logger key button starts the flashing for 15 seconds again.
z Important: The logger can be started with the logger key button only while
the signal LED is flashing (if starting the logger with the key button was
set during the setting up of the logging job).