Xylem photoLab 6600 UV-VIS - Manual (Page 99)

photoLab
®
6600 UV-VIS Operation
99 ba75848e01 08/2009
4.10 Timer
You can use the timers to remind you by an acoustic signal of a time interval
that has expired.
The photometer has two types of timers:
z The User defined timer is a timer that can be freely assigned. The interval
and name can be freely set. Only one freely assignable timer is available.
It cannot be erased (see section 4.10.1).
z Analysis timer are timers permanently stored in the photometer. The
names and intervals of the analysis timers are stored in the method data
of a measuring method (Concentration mode). The number of available
analysis timers corresponds to the number of reaction times prescribed in
the analysis instructions of the programmed methods (see section 4.10.2).
The photometer administrates all timers in the timer overview.
The timer overview (the Timer menu) is opened with the <TIMER> key. The
Timer menu can be opened in any operating situation.
Operation of the timer does not disturb any other functions.
The timer overview can be exited with the <ESC> key.
When the Timer menu is opened for the first time, only the user-defined timer
is in the timer overview. You can include analysis timers into the list or
remove them according to your requirements (see section 4.10.2).
The timer overview displays the status of each timer and, of a started timer,
the remaining time of the specified time interval.
All timers are started manually.
As soon as one single timer has been started the timer symbol appears on
the display in all operating modes.
When a timer has been started it is given the timer status, Active.
When the specified time interval has expired the timer status changes from
Active to Expired and an acoustic signal sounds.
In the timer status Expired the acoustic signal sounds until the timer is
stopped manually.
After the stop, the timer status changes to Inactive and the acoustic signal is
switched off.