Sentry Industries 5000 User Manual

Page of 130
SMC
 sierra monitor corporation 
Sentry Instruction Manual - Version 6 
 
CONFIGURATION PROCEDURE 
Page:  38 
4.5.2.5  SET DATE/TIME 
PRESS ENTER TO 
SET DATE & TIME 
Set the Sentry clock in the same manner as any digital clock is 
set.  The format is  MM/DD HH:MM, with the hours set in 
military time (24 hours).  If a user code has been set-up it will be 
required prior to changing the clock. The cursor is initially 
under the month MM, set the correct month with the arrow and 
press ENTER to advance to the day DD.  Repeat the process to 
set day, hour and minute.  When the time is correct, press 
RESET to exit. 
4.5.3  RESET KEY 
4.5.3.1  RESET ALARMS 
PRESS ENTER TO 
RESET ALARMS 
The  RESET ALARMS activity will reset any latched alarm 
relay when the condition which caused the alarm has been 
corrected.  If  RESET ALARMS is selected before the 
correction has been made, the respective LED and relay will 
remain in the alarm condition. 
4.5.3.2  RESET SYSTEM 
PRESS ENTER TO 
RESET SYSTEM 
The RESET SYSTEM activity will reset all trouble conditions.  
If  the trouble still exists the condition will re-display 
immediately.   RESET SYSTEM can be used at any time to 
return the system to normal operation and clear all error 
messages. 
4.5.3.3  RESET HISTORY 
PRESS ENTER TO 
RESET HISTORY 
The  RESET  HISTORY activity clears all module history 
information which is normally accessed via the TIME key. The 
highest concentration is set to 00 and the lowest concentration is 
set to HI.  The history reset date/time is set to the current system 
date/time. Sentry will immediately begin collecting new history 
information.  When a user code has been installed the code will 
be required before the history can be reset. 
4.5.3.4  OTHER USE OF RESET KEY 
During  CHANGE activity if the  RESET key is pressed once 
the display will return to its normal scan operation but the 
CHANGE/CALIBRATE light will remain on.  The  MODE 
key can then be used to return to configuration activities without 
re-entering a user code.  This action is helpful if module scan 
information is required during a configuration step. 
4.5.3.5  EXTERNAL RESET KEY 
The external  RESET key on NEMA units implements RESET 
ALARMS and eliminates the need to open the enclosure for this 
purpose. 
4.5.4  MODE KEY - CALIB/CHANGE 
The first menu choice under the 
MODE key is 
CALIB/CHANGE when the  ENTER key is pressed the 
"Calibrate or Change"  light will turn on and the display will 
indicate  ENTER  TO  CALIB (GAS TYPE) (SPAN VALUE).  
After initial system set-up the  CALIBRATE OR CHANGE 
activity should be protected via the user access code described 
in Section  7.3.4.  When the user code has been installed only 
authorized operators may access this activity. 
4.5.4.1  CALIBRATE 
ENTER TO CALIB 
COMB  50% LEL 
The calibration activity is described in detail in the next chapter. 
4.5.4.2  CHANGE CALIB 
PRESS ENTER TO 
CHANGE CALIB 
The change calibration activity is described in detail in the next 
chapter. 
4.5.4.3  CHANGE MODULE 
PRESS ENTER TO 
CHANGE MODULE 
Each module in the installation must be initialized via the 
change module activity.  The  CHANGE MODULE activity is 
detailed in step by step form in Section 4.3 steps 6 through 18.  
The  CHANGE MODULE activity should also be used after 
any sensor or module has been replaced to insure that the correct 
alarm limits and factors have been established.