Presentation on theme: "SECTION 11 LEVEL B SUIT OUT. SECTION 12 AIR MONITORING."— Presentation transcript:
SECTION 11 LEVEL B SUIT OUT
SECTION 12 AIR MONITORING
LUMIDOR MICROMAX 4 GAS AIR MONITORING FOR THE TECHNICALLY CHALLENGED
Why did we choose this monitor? It is reliable It is durable It is easy to use Parts are easily replaced and it is easy to maintain It is easy to calibrate
WARNING ! To ensure proper functioning and use of this product do not use the instrument until you read and completely understand the operating manual. No member of the hazmat team knows any more about the monitor than the book can tell you. We learned from the book.
KEY FEATURES AUTOMATIC DISPLAY ILLUMINATION AUTOMATIC ZEROING BATTERY VOLTAGE DISPLAY PEAKS FEATURE LOW BATTERY ALARM AUDIBLE AND VISIBLE ALARMS
CHARGING THE BATTERY PACK To charge the unit use only the charger supplied with the monitor designated MAX-1…damage may result The charger looks very similar to many other transformer/charger units used by the AFD (not to mention our personal stuff) leave the monitor on charge all of the time…it has a small current draw
Specifications operating temp range -4 to 122 deg. F humidity range - 0 to 98% (non condensing) battery life 8 hours on full charge Accuracy –oxygen 0.5% –2% LEL –2ppm or 10% of applied gas concentration for H2S or CO
OPERATING INSTRUCTIONS ALWAYS turn the unit on in a clean atmosphere. (and make sure that the filter is connected) The self test and auto zero functions will take 45 seconds. alarm points will be displayed data may be available from last use
alarms test test the low flow alarm by blocking the intake port. if the internal tubing has become disconnected, the low flow alarm will not sound bump test at regular intervals to verify accuracy (instructions on page 6) Always let the monitor clear out after calibration, bump test, or exposure to a hazardous atmosphere.
mode functions- press the mode button and then the on/off button to select battery voltage - –full charge is 2.5 to 2.7 volts –battery warning below 2.1 volts –low battery fail occurs at 1.9 volts peaks - stores the highest concentration for each sensor. (Retained after the machine is turned off)
modes (continued) The STEL and TWA modes reveal stored time weighted average exposures used to protect against occupational exposures. (CO during overhaul at a structure fire.) Alarms sound if STEL or TWAs are exceeded After 15 seconds monitor defaults to survey mode
REMOTE SAMPLING 10 foot hose used for pre-testing confined spaces or trenches Two minute response 10 feet up to 100 feet of hose can be used add 1 second per foot to the two minute response time
When to Calibrate (page 11) When sensors are replaced When there is a sensor fault Bump test readings off + 15% or every 90 days follow the directions on page 11-12
Calibration steps Fully charged battery in clean air Remove calibration screw start monitor (let run for a few minutes) tap internal switch once after 30 seconds tap switch again and apply gas flow gas for 2 minutes and tap switch again
Calibration steps (cont) monitor should read cal gas values- remember the cal gas has a small error factor so it might not be perfect remove cal gas but DO NOT TURN MONITOR OFF until readings have returned to zero.
Trouble? auto zero error stored or turned on in contaminated atmosphere or cal gas prematurely applied. simple steps with internal switch may solve problem
WARNING! If the instrument is used in very high concentrations above 100 % LEL, or in a very low oxygen environment, the displayed LEL reading will be lower than the actual value.
for natural gas leaks Avoid exposing it to high concentrations (dont peak the sensors) Use it to establish perimeters on outdoor leaks and to check nearby occupancies Use it to check levels in occupancies where leaks are suspected. Mercaptan odor but no LEL reading (low odor threshold by design) Mercaptan sometimes reads on the H2S Let it go back to zero before turning off
Carbon monoxide calls Temperature changes influence readings (cold outside, warm inside) do not test monitor by holding it in the tailpipe or other known high monoxide atmospheres