The document describes a nuclear reactor main control panel with various panels to control alarms, pressure, flow rate, temperature, reactor targets, and emergency shutdown. It also provides an emergency scenario where the reactor operator Jenny notices a rapid rise in the core reaction rate and must immediately change the reactor target pressure. She presses the '+' button twice on the Alarm Control Panel, causing the Emergency Confirm button to glow red, then moves to the Manual Override panel to address the issue.

1. NUCLEAR REACTOR MAIN CONTROL PANEL
Alarm Control
LOTS OF OTHER
CONTROLS
reactor targets
information
panel
Pressure
Flow Rate
manual
override
panel
325
Temp
10256
Manual Override
Target
Pressure
alarm
control
panel
emergency
shutdown
panel
Reactor Targets
7934
+
keypad
for manual
override
–
Emergency Shutdown
IMMEDIATE
SHUTDOWN
COMMENCE
emergency
confirm
panel
7
SET
0
9
4
6000
8
5
6
CONFIRM
1
2
3
CANCEL
Emergency Confirm

2. Emergency Scenario
Jenny, the Nuclear Power Plant operator has normal sight and no physical
or perceptual impairments. Her shift started at 11pm and it is now 5am
in the morning. So far the plant has been operating within normal
parameters and the current alarm state is therefore green
1 Jenny notices the core reaction rate has risen very rapidly
2. she realises she must immediately change the reactor
target pressure to correct this
3. she goes to the Alarm Control Panel on the far right of the
main reactor control panel and presses '+' twice (as it is
starting off in green state)
4. the Emergency Confirm button glows red
5. she moves across to the Manual Override panel on the
far left of the main reactor control panel
………