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

1.2

Front Panel Keypad

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.

•

and

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

and

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

annunciator is lit for primary units,

for secondary units.