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HAZMAT 200 METERS > Meters > Flashcards

Meters Flashcards

1
Q

What are the 5 areas of atmospheric measurements of the multirae

A
  1. Combustibility
  2. O2
  3. CO
  4. H2S HYDROGEN SULFIDE
  5. VOC
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2
Q

Can other sensors other than the previous 5 sensors be used in the multirae?

A

Yes, Multiple different sensors can be used. Only one is high energy (PID for VOC’s, 10.6 IP)

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3
Q

What is another word for calibration on the multirae

A

Span

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4
Q

Multirae LEL alarms at?

A

10% and 10%

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5
Q

Multirae O2 sensor alarms at?

A

19.5% low
23.5% high

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6
Q

Multirae CO alarms at?

A

35ppm and 100 ppm

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7
Q

Multirae H2S alarms at?

A

10ppm and 15 PPM

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8
Q

Multirae VOC’s alarm at?

A

50-100ppm

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9
Q

20% by volume = how many PPM

A

200,000 PPM

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10
Q

What type of battery does the multirae use?

A

Rechargeable lithium ion battery. Meter should be kept on charger when not in use.

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11
Q

When air monitoring around electrical hazards, what type of sampling wand is used?

A

Non-conductive wand

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12
Q

Multirae: What contaminates may give you false readings, damage sensors, or damage meter

A

Organic silicones, silicates, lead containing compounds

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13
Q

What are VOC’s and what is the highest IP that the meter can detect?

A

Volatile organic compounds. Chemicals such as fuels, coatings, solvents and refrigerants. Evaporate easily = volatile. High flash points.
10.6 IP

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14
Q

How does the Multirae read VOC’s

A

3 different PID sensors.

PPM .1-5,000
PPM 1-1,000
10PPB-2,000 PPM

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15
Q

What three things do you do prior to metering a hazardous area?

A
  1. Block pump
  2. Bump test
  3. Confirm measurement gas/conversion factor
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16
Q

What are conversion factors?

A

Values that must be multiplied by the reading in LEL and VOC to get the true reading. Built into the multirae if you change measurement gas.

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17
Q

What is the wand and how does it effect your readings?

A

Used to assist with metering high and low. Takes one second per foot for gas to reach the meter. Filter on the inlet of the meter itself

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18
Q

What do we have to know when using toxirae?

A

What gas we ate dealing with. It’s gas specific.

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19
Q

What are the three toxirae sensors?

A

Ammonia, chlorine and cyanide

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20
Q

What powers the toxirae?

A

Rechargeable lithium ion battery. Should be kept on charger.

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21
Q

What does it mean if the toxirae loses power? What do you do?

A

Battery is dead. Recharge asap

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22
Q

The toxirae is a passive meter. What does that mean?

A

No pump. No hose can be attached.

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23
Q

Toxirae MAX code means?

A

Gas exceeds electronics max range

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24
Q

Toxirae OVER code?

A

Gas exceeds measurement range

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25
Q

Toxirae HIGH code?

A

gas exceeds high alarm limit

26
Q

Toxirae LOW code?

A

Gas exceeds low alarm limit

27
Q

Toxirae STEL code

A

Gas exceeds short term exposure limit

28
Q

Toxirae TWA code

A

Gas exceeds time weighted average limit

29
Q

Toxirae CAL code?

A

Calibration failed, or needs calibration

30
Q

How can you find the measurement ranges for each sensor for the toxirae?

A

Meter will tell you the ranges for each sensor during warm up cycle.

31
Q

Toxirae smart cell
5 key points.

A
  1. Cells last about 2 years
  2. Exposure to high heat and moisture can be harmful
  3. Exposure to high concentrations can damage cells
  4. Always keep cells in sensor keeper, or in meter and on the charger.
  5. Saturated cells can take hours to clear
32
Q

How do you change sensors in the toxirae?

A

Turn off to change is the preferred method. Unscrew and replace sensor.

33
Q

Gas ranger batter installation.

A

Side of unit. Opposite orientation from every toy.

34
Q

Gas ranger. What is the correct orientation of the wand, water trap and dust filter, tubing and meter?

A

Wand, dust filter, water trap, tubing, meter

35
Q

How do you switch from %LEL to %gas gas ranger?

A

Using the dial. 10% LEL is equal to .5% gas
20% LEL is equal to 1% gas. %gas is used once 100% LEL is reached to get an accurate reading

36
Q

Gas ranger. How do you clear a “no go” during an auto zero?

A

Press and hold the reset button

37
Q

What mode would you use to pin point the source of a gas leak with the gas ranger?

A

Sniff/track gas. Read out in PPM

38
Q

Gas ranger
5% gas by volume= how many PPM?

A

50,000 PPM

39
Q

Gas ranger alarms at what %LEL and what %gas

A

10% LEL
0.5% gas

40
Q

What will display on the gas ranger if battery is low?

A

Flashes “LO”

41
Q

Gas ranger meters for?

A

Methane, CO and O2

42
Q

Gas ranger displays “LO”

A

Batteries low or installed incorrectly (install flat end first)

43
Q

Gas ranger displays “bloc”

A

Intake of instrument is blocked. Drain wand, clean/change filter, drain or replace water trap

44
Q

Gas ranger does not display “bloc” when probe is manually blocked?

A

Indicates leak between probe tip and pump or pump is dirty. Disconnect probe and tube and block intake. If block still does not appear meter needs repair.

45
Q

Gas ranger displays “nogo” on auto zero

A

Gas or CO is present. Repeat in clean air after detector purge.

Or
The zero of sensor has drifted. Coarse zero in clean air (hold down RESET and switch out of and back into AUTO ZERO)

46
Q

Gas ranger display shows “FAIL”

A

A sensor (methane or oxygen) has failed. Replace sensor(s)

47
Q

Gas ranger cross sensitivities?

A

CO2

48
Q

Function of the eberline?

A

Detects Gamma, neutron (xray), alpha and beta (pancake)

49
Q

Where is the internal probe on the eberline?

A

Front of the hand held meter. Front is indicated by a small triangle.

50
Q

Eberline external prob connector

A

Also called the pancake. Reads alpha and beta (flip over)

51
Q

Eberline scintillator

A

The blue sausage. Expands the range of the meter in a cone shape. 90ft 70°

52
Q

Eberline function keys

A

On/off, back light, function key, volume

53
Q

What is the function of the green light on the Eberline?

A

Flashing or solid green indicates normal levels

54
Q

Radiation contamination is considered?

A

5x backround

55
Q

Hot zone established with radiation at?

A

2 mR

56
Q

Indefinder is used for what sources radiation?

A

Gama(red light above soft keys) waves. neutron (blue light above soft key) particle

57
Q

Explain source identification using the identifinder

A

Used to identify the source of the radiation. Medical, industrial weapon etc.

58
Q

Battery locations on the indentifinder.

A

Handle and head of unit. 12 hour internal battery. Charging port on head of unit.

59
Q

What is the dose rate mode on the identifinder?

A

Home screen

60
Q

What is the command line on the identifinder?

A

The 3 soft keys that correspond with the 3 on screen option.

HAZMAT 200 METERS (1 decks)

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