Date: 
Rev: 
Sign: 

2007-09-07 
6. 080616 
GS/jim 

JOWA SEAGUARD  

15ppm Bilge Alarm 

 

 

K:\1-NYA K\1.2-JOWA PRODUKTER\JOWA 15PPM Bilge Alarm\Manual 

15

 
 
 
 
 
 
 
 
 
5.3.5      Simulation. 

 

According to MEPC 107(49)  § 4.2.5, onboard testing according to the 
manufacturers instructions shall be permitted. 
 
To facilitate this the JOWA 15ppm bilge alarm has a service menu called 
simulation. A simulation run permits the user to imitate a ppm over the alarm set 
point, (max alarm set point 15ppm).  
 
This simulation run works by simulating the ppm ramping up from the real ppm 
to a peak of 20ppm and down to the real ppm again.  
 
-In this case “real ppm” refers to the ppm which is actually present.  
 
Each ppm step in the simulation run takes 2 seconds. If, for example, the real 
ppm is 10ppm when the simulation is started the alarm counts up from 10ppm 
to 20ppm. If at the end of this simulation the real ppm is now 8ppm the count 
down stops here 
 
 
NOTE! 
-If the real ppm value is higher than 15ppm then it is not possible to start a 
simulation run 
-During simulation the alarm continually monitors the real ppm in the 
background. If at any time during a simulation run the real ppm goes higher 
than 15ppm, there will be an alarm. 
-All simulation runs are logged if the Sep in signal is active.