Aqualytic OxiDirect BOD-System, Инструкция по эксплуатации

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3.11 Parameters Menu
Press the „ENTER“ key and hold it depressed. Switch on the unit with the On/Off key. Allow
three decimal points in the lower display to flash for 3 seconds and then release the „ENTER“
key. The unit is now in the parameters menu. The „+“ and „-“ keys can now be used to select
between the Date/Time, „Autostart“, „Autoduration“ and „Change Batteries“ menus. Pressing
the „ENTER“ key will give access to the sub-menu which is selected. Quit the parameters
menu with the On/Off key. The unit will return to „Display Mode“.
3.11.1 Setting the Date and Time
Confirm „Set“ „DAtE“ by pressing the „ENTER“ key. The unit will display „dA“ and the year
which is currently set. Press the „ENTER“ key. The unit displays „dA“ and now shows the
date which is currently set in the form of
„MM.TT“
, where
„MM“
indicates the month and
„TT“ indicates the day.
Press the „ENTER“ key. The unit displays „ti“ and the time in the form of „ hh.mm“ where
„hh“ indicates the hours and „mm“ indicates the minutes. Press the „ENTER“ key. The
upper display flashes and shows „JJ“ and the lower display shows the year in figures. The
year can be changed with the „+/-“ key. Press the „ENTER“ key.
In this way it is possible to reset the figures for the month (the display shows „Mo“ ), the day
(the display shows „dd“ ), the hour (the display shows „hh“ ), the tens of minutes (the display
shows „M“ ) and the single minutes (the display shows „m“ ). Each entry must be confirmed
by pressing the „ENTER“ key. Finally, press the „ENTER“ key once more to adopt the figures
which have been set. The unit sets the internal clock to these figures and (provided no
mistakes have been made) will display
„iS“ „Set“
. The date/time menu can be quitted at any
time by pressing the On/Off key.
3.11.2 Autostart
Using the „Autostart“ function does
not
replace tempering of the sample to the required
temperature before measurement is activated.
If „Autostart“ is active, the unit will wait for proper temperature of the sample, indicated
by a decrease in pressure. It takes this pressure as the „start“ value for the following BOD
calculations. However, the maximum waiting time is 3 hours. After this time the unit will
automatically take the current pressure as the „start“ value, even if no decrease in pressure
has been detected. This will be indicated later by flashing measurement values.
If the temperature of the BOD samples is significantly different from the specified
temperature, a change in pressure will cause errors in determining the BOD values.
The „Autostart“ function can be switched on and off. The setting always applies from the time
it is done and applies to all the heads on the rack.
Confirm „Set“ „Auto“ with the „ENTER“ key. The „+“ key is used to switch on the „Autostart“
function –“ On“ „Auto“ and the „-“ key is used to switch it off – „ Off“ „Auto“. Once the
selection has been made, the sub-menu is quitted with the On/Off key.