palintest Pooltest 25, Manual

Page: 10 / 41

10
and
Read
Expressing Different Chemical Forms
If the test result can be expressed in different chemical forms, the chemical
symbol will have flashing

and

to indicate this. Use the

or

keys to
step through the options available.
Note that the log stores the result in the standard form.
Reading in Transmittance
When taking a reading in Transmittance mode, use the

or

keys to step
through the wavelengths, after the result is taken, until the required
wavelength is reached.
Timer
The photometer features a countdown timer with alarm as an aid to
carrying out test procedures. The timer can be accessed during a test by
selecting ‘Timer’ from the ‘Options’ menu.
After selecting the timer, the following display will appear :-
Key in the time required in minutes and seconds, maximum 29 minutes and
59 seconds, using the numerical keys, then select ‘START’ to start the timer.
Use the

and

keys to reposition the cursor and re-enter the time if it is
keyed in incorrectly.
The timer will count down, giving an audible alarm at the end of the timed
period. Press [ OK ] to stop the alarm.
During the timer countdown period, an ‘Options’ menu is available :-
Stop - to abort the timing operation and return to the main test screen.
Exit - to return to the program screen to take readings. The timer will
continue to run and give an audible alarm at the end of the period.
Exit - to return to the program screen with the timer counting down on
screen - the instrument will automatically take a reading at the end
of the timed period - no alarm will sound.
Timer
00:00
EXIT