3.2
Centre: Control Panel
This section details the control panel area which is used to operate the
TEMPEST 50
unit. It incorporates a keypad, display and various
indicators (Refer to Figure 2 Centre : Control Panel).
Ref
No
Name
Description/Function
7
Power On/Off Keys
These two keys must be pressed
simultaneously to switch the unit on and off.
This prevents the unit from being turned off
accidentally during operation.
8
Battery Recharge
Indicator
An illuminated green LED next to the battery
symbol indicates that the internal battery is
being charged by an external power source.
9
Power Indicator
An illuminated red LED next to the on/off
symbol indicates that the unit is switched on
and receiving power from either the internal
battery or an external power source.
10
Display
The area where all the information regarding
the current mode of operation of the
TEMPEST 50
is displayed.
11
Keypad
Allows the operator to control the unit and
access the
TEMPEST 50
functions using
simple keystrokes. The positions of the
principal keys are shown in Figure 2 and a
tabulated brief description of their functions is
given in Table 1 : Quick Key Reference
(centre page).
