TB 150 - Drager X-am 5000 Combustible Gas Indicator Flashcards
The Dräger __-am _____ combustible gas meter (CGI)
X
5000
The Dräger X-am 5000 combustible gas meter (CGI) is a __-sensor gas monitor and alarm device designed for personnel monitoring and confined space applications
5
The Dräger X-am 5000 gasses detected:
• ______________
• ______________
• ______________
• ______________
• ______________
• Carbon monoxide (CO)
• Oxygen (O2)
• Hydrogen sulfide (H2S)
• Hydrogen cyanide (HCN)
• Explosive vapors
The drager X-am 5000 is a ________ monitor meaning it does not have a mechanical pump to draw in air samples
Passive
The X-am 5000 is ______________ safe, resistant to electromagnetic interference, water, dust, impact and vibrations
Intrinsically
The Dräger X-am 5000:
Before and after every use, the meter needs to be exposed to _____ _____
Fresh air
Fresh air calibrations are performed in the field by emergency responders, and gas-specific calibrations are performed by HazMat Squad personnel every __ months and anytime the meter’s start-up self test indicates a sensor problem
6
Oxygen, carbon monoxide, hydrogen sulfide and hydrogen cyanide are detected using _________________ sensors
Electrochemical
The Dräger X-am 5000 displays in _____ _____ _____ (ppm)
Parts per million
The Dräger X-am 5000:
At start-up - THE METER MUST NOT BE USED IF THE __ SYMBOL IS DISPLAYED IN THE UPPER RIGHT CORNER OF THE SCREEN
X
Catalytic Combustible Sensor - The gas concentration determined by the bridge voltage of the sensor is given in __ ____ (______ ________ _______)
% LEL (Lower Explosive Limit)
The Dräger X-am 5000:
The combustible gas sensor may display incorrect readings in oxygen-poor atmospheres with less than ___% oxygen
10
The Dräger X-am 5000:
The manufacturer does not guarantee this device to be intrinsically safe in oxygen-enriched atmospheres with greater than _____% oxygen, IMMEDIATELY LEAVE
23.5
DO NOT STORE NEAR OR USE _________ SPRAY ON THIS METER CGI’s are not intended for use in chemical atmospheres with wide flammability ranges such as Hydrogen or Acetylene
SILICONE
Hydrogen has a flammability range of __%-___%
4%-75%
Acetylene has a flammability range of ____%-____%
2.5%-100%
The flammability range of methane is between __% (representing the lower [LEL]) & ___% (representing the upper [UEL])
5
15
Flammability Range, Lower Explosive Limit and Upper Explosive Limit – Methane - The X-am 5000 is set to alarm at ___% of the LEL for the A1 alarm and alarm at ___% of the LEL for the A2 alarm
10%
20%
Switching on the device - Press and hold the OK key for approximately __ seconds
3
Switching off the device - Press and hold the ___ and __ keys at the same time until the countdown
OK
+
The Dräger X-am 5000:
During operation - If atmospheric conditions cause the meter to ______ while using the instrument as a personal or area monitor, leave the area immediately
Alarm
Clearing peak values - While in the measuring mode, depress the + button __ times. Select the icon from the quick menu by pressing the + key then the OK key. The peak values will be displayed and can be cleared by depressing and holding the OK key for approximately __ seconds.
3
5
Fresh air calibration - depress the + button __ times, Select the fresh air calibration symbol from the quick menu by pressing the __ key then the ___ key. Press the OK key to exit the calibration function or wait approximately __ seconds
3
+
OK
5
Acknowledging Alarms - Press the ___ key to acknowledge the pre-alarm; only the audible and vibration alarms are switched off, the visual alarm will continue to flash
OK
