CFD Drager X-am 2500 portable gas monitor Flashcards
turn the device ON
press and hold the green “OKon” button for 3 seconds
the instrument starts the boot-sequence and performs an automatic self-test
! symbol
drager requires a 5-minute sensor warm-up period before the device can be calibrated and/or peaks cleared
while warming up the ! symbol will appear in the upper right of the display screen
turn the device OFF
press and hold the “OKon” and the “+M” button together for 3 secs
operate back light
press the “+M” button for 3 seconds
display screen will backlight for 10 seconds
battery
uses a nickel-metal hydride battery
can ONLY be charged in the vehicle mounted charging dock located on all CFD apparatus
battery Pre-alarm
activates when 20min of battery life remains
audible, visual and vibration alarms are activated periodically
low battery symbol flashes on the bottom right
acknowledge the alarm by pressing the “OKon” button
Battery main alarm
indicates the battery is nearly expired
audible, visual and vibration alarms are activated periodically
a count down in the display starts at 10, after which the device shuts itself off
recharging the battery
red light blinking - charging
red light solid - charged
charging takes about 4 hours to complete
fresh air calibration sets
the oxygen channel to 20.9% by volume and the sensors to zero (Ensure calibration occurs in clean air)
to calibrate:
- press the blue “+M” button 3x
- press the “OKon” button to activate fresh air calibration
- press the “OKON” button (display shows OK on all sensors)
Clearing the peaks
- press the blue “+M” button 3x
- press the blue “+M” button (select peak values icon ^)
- press the “OKon” button (displays logged peak readings; display blinking)
- press and hold the “OKon” button for 5 secs (clears all sensors peak readings)
bump test
- done at the beginning of every shift
- uses a small quantity of test gas over the instrument to warrant that it responds as it should trigger an audible and visual alarms
- typically takes 60-90secs to complete
X-dock stations have two calibration bottles attached
- one four gas blend with methane (daily pumps)
- other pentane (monthly calibrations)
Bump test - test passed
green with a check-mark - indicates the bump test is complete and the drager passed
bump test - test passed, with reservations
- yellow with caution triangle - indicates that at least one of the tests could not be conducted
- remove the device and try again
- if problem occurs again, contact HazTech
Bump test - test failed
- red with an “X”
- review error message and rectify error if possible
- repeat the test
- if problem occurs again, call HazTech
Alarms
A1 Alarm - low level alarm
- sounds if the concentration amount is higher than normal but does not constitute an acute hazard
- audible, visual and vibration alarms activate and repeat
- to acknowledge/silence press “OKon” once
A2 Alarm - High-Level Alarm
signals danger of death - leave immediately
- audible (double tone), visual and vibration alarms activate and repeat
- alarm CANNOT be acknowledge until air quality improves to below the high alarm level
Over-Range Alarm
- indicates the ambient air contains concentrations exceeding the measuring range of the sensor used
- leave the danger zone immediately
- the over-range symbol alternates in the display with an “A2” main alarm sound
- An “A2” alarm cannot be acknowledged
Under-Range Alarm
- indicates the measuring range is not reached
- the can occur if a fresh air calibration is being carried out in a range in which concentrations are already present
- an under-range alarm cannon be acknowledged
error code
- An “X” symbol in the top right of the display indicates an error
- press “OKon” for 3 secs, an error code will be displayed
- contact HazTech for all Drager error code concerns
- if a code is displayed, press “+M” button to abort the code and return to measuring mode
