4
2. Getting Acquainted
2.1 Front
Panel
The front panel consists of a 3 digit LED display together with 5
LED annunciators. There are also 4 keys as shown below.
The keys available are the
▲
(UP/INCREMENT),
▼
(DOWN/DECREMENT),
MODE
and
ENTER
keys.
The annunciators are pH/ORP,
°
C, SETUP, READY, and
RELAY. The function of the annunciator is to provide additional
information, for example, the pH/ORP annunciator lights up in
pH/ORP measurement mode. The READY annunciator lights
up when the pH/ORP stabilizes. RELAY lights up when any of
the HI SET or LO SET relays is activated.
The
MODE
key allows you to select between pH or ORP
display, the temperature display or the SETUP menu display.
While in one of the SETUP menus, it also functions as an
ESCAPE key. For example, while setting the Hi SET point, you
can press
MODE
key if you change your mind about changing
this information.
You can confirm changes or to enter into further levels of the
lower menu by pressing the
ENTER
key. The
▲
(UP/INCREMENT) and
▼
(DOWN/DECREMENT) keys allow
you to change information or to select between different menus.
Holding down the key increases the scrolling speed, i.e.
changeover of 1st digit (ones) to 2nd (tens) and then 3rd digit
(hundreds).
pH/ OR
MODE
o
C
SETUP
REA DY
RELA Y
ENTER
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