Heath Consultants Optical Methane Detector (OM) - Manual (Page 18)

18
Chapter III
OPERATING PROCEDURES
Start Up:
1) Turn on the SYSTEM POWER by pressing the “SYSTEM
POWER” button. The red LED above the SYSTEM POWER
button will light up and a message will appear on the screen
stating, “PUSH DISPLAY FUNCTION TO CONTINUE.”
Press the Display Function button twice to enter the normal
operating mode.
If the system has been off for more than several seconds, a
“SYSTEM WARMING UP,” message will be displayed. The
system will require up to approximately 15 minutes before a beep
will be heard and a message prompting the operator to, “TURN
ON THE LIGHT SOURCE” will be displayed.
2) Turn on the LIGHT SOURCE if not done so already by press-
ing the “LIGHT SOURCE” button. The red LED above the
LIGHT SOURCE button will light up and normal operation of
the system will begin. If the vehicle will be turned off for a
break, turn off the LIGHT SOURCE to save the automobile
battery, while keeping the System Power on. A message
prompting the operator to turn on the LIGHT SOURCE to
resume operation will be displayed. System current con-
sumption with the light is approximately five amperes
while system current consumption without the light is less
than one and one half amperes, which can be sustained by a
good automobile battery, without the use of the engine, for
at least 12 hours without causing starting problems. How-
ever, extreme cold conditions may require the vehicle to
remain running as battery capacity drops significantly with
reduced temperature.
3) Allow time for the instrument to stabalize. This may take 45 to