2 front panel keypad, 3 led annunciators, 2 front panel keypad 1.3 led annunciators – Rice Lake SURVIVOR 420HE Hostile Environment - Installation Manual User Manual
Page 7
420HE Installation Manual - Introduction
3
1.2
Front Panel Keypad
Figure 1-1 shows the
420HE
LED annunciators,
keypad, and normal mode key functions.The symbols
shown above the keys (representing up, down, enter,
left, right) describe the key functions assigned in setup
mode. In setup mode, the keys are used to navigate
through menus, select digits within numeric values,
and increment/decrement values. See Section 3.1.3 on
page 14 for information about using the front panel
keys in setup mode.
The
420HE
also has a
POWER
key. Use the
POWER
key
to turn the indicator on or off.
WARNING
The
420HE
has an on/off switch for the
load cells and processor functions. Before
opening the unit, ensure the power cord is
disconnected from the power outlet. The power outlet
must be located near the indicator to allow the operator to
easily disconnect power to the unit.
Figure 1-1.
420HE Front Panel, Showing LED Annunciators and Normal Mode Key Functions
1.3
LED Annunciators
The
420HE
display uses a set of six LED annunciators to provide additional information about the value being
displayed:
•
Gross
and
Net
annunciators are lit to show whether the displayed weight is a gross or net weight.
•
Center of zero (
): Gross weight is within 0.25 graduations of zero. This annunciator lights when the
scale is zeroed.
•
Standstill (
): Scale is at standstill or within the specified motion band. Some operations, including tare
functions and printing, can only be done when the standstill symbol is shown.
•
lb
and
kg
annunciators indicate the units associated with the displayed value: lb=pounds, kg=kilograms.
The displayed units can also be set to short tons (tn), metric tons (t), ounces (oz), grams (g), or NONE (no
units information displayed). The
lb
and
kg
LEDs function as primary and secondary units annunciators for
some combinations of primary and secondary units. If neither primary nor secondary units are lb or kg the
lb
annunciator is lit for primary units,
kg
for secondary units.