52 NFS2-640/E Programming Manual — P/N 52742:L2  7/17/14
Section 3: Status Change
3.1  Overview
Status Change provides a second programming level - accessed by an assigned password - for 
changing operating parameters. (These operating parameters do not affect control program 
settings.) For example, the Status Change password lets you change settings such as detector 
sensitivity and system time and date.
Status Change Options are described below.
Option 1=DISABL - The Disable/Enable option lets you disable programmed points for detectors, 
modules, zones and NACs. For details, refer to “Disable or Enable a Point” on page 53.
Option 2=SENSITIV - The Detector Sensitivity option lets you change the Alarm and Pre-alarm 
(sensitivity) level for an installed detector. For details, refer to “Changing Detector Sensitivity” on 
page 54.
Option 3=CLR VER - The Clear Verification screen lets you clear all counters for detectors 
selected for Alarm Verification. For details, refer to “Clearing Alarm Verification Counters” on 
page 55.
Option 4=CLR HIST - The Clear History screen lets you clear the entire History buffer from 
memory. For details, refer to “Clearing the History Buffer” on page 55.
Option 5=TIME - The Time/Date option lets you set the time and date for the system clock. For 
details, refer to “Setting the System Time and Date” on page 55.
Option 6=WALK TEST - The Walk Test option lets you test the entire fire alarm system while 
away from the control panel. For details, refer to “Walk Test” on page 56”.
3.2  How to Enter Status Change
To enter Status Change, follow these steps:
1. From the SYSTEM NORMAL” screen, press the 
ENTER key. The control panel displays the 
“Entry” screen, as shown below: 
2. From the “Entry” screen, press the 1 key. The control panel displays the “Enter Password” 
screen as shown below: 
3. Enter your Status Change password (See “How to Enter a Password”, page page 11). The 
control panel displays the “Status Change Selection” screen, as shown below: 
4. Select a Status Change selection: 1,2,3,4,5, or 6.
NOTE: Assign the Status Change password to persons who do not have access to Level 1 
programming options.
1=PROGRAMMING   2=READ STATUS ENTRY
 
ENTER PROG OR STAT PASSWORD, THEN ENTER.
 
STATUS CHANGE PRESS: 1=DISABL 2=SENSITIV
3=CLR VER 4=CLR HIST 5=TIME 6=WALK TEST