abc's of confined space safety

The ABCs of Confined

Space Safety

Because every life has a purpose…

© MSA 2012

Using Gas Monitors in Confined Spaces

Because every life has a purpose… © MSA 2012

Stuart Becker

Sales Manager Chicago 3


4

An average of 92 workers

are killed each year in

confined space accidents

“Rescuers” make up 60% of

confined space fatalities

Confined Space Dangers


Confined Space Hazards

Presence of toxic gases

Oxygen deficiency or enrichment

Potential for engulfment

Flammable gas above 10% LEL

Mechanical Devices

Physical Obstacles

Sloped floors which may pin &

cause asphyxiation

Any potential for IDLH

atmospheres


6

Hazardous Atmosphere

• An atmosphere that may pose a risk of death, incapacitation, impairment of the ability to self-rescue, or acute illness.

◘ Flammable gas, vapor or mist > 10% of LEL

◘ Oxygen < 19.5% or > 23.5%

◘ Airborne combustible dust that meets LFL

◘ Atmospheric concentration of substance in excess of OSHA PELs in Subpart G or Z

◘ Any other condition that is considered IDLH

Key Definitions


What is LEL?

Below Lower Explosive Limit - not enough fuel to ignite

Above Upper Explosive Limit - not enough oxygen

Between LEL and UEL -atmosphere is explosive


Need to sample at all levels in confined space

METHANE (Lighter Than Air)

CARBON MONOXIDE (Same Molecular Weight As Air)

HYDROGEN SULFIDE (Heavier Than Air)

Gases Have Different

“Molecular” Weights


9

Initial testing shall be completed with the ventilation systems shut down.

Further testing shall be conducted with ventilation turned on

Conducted in a manner that represents the atmosphere throughout the confined space

Atmospheric Testing


10

Instrument Reliability Verification

• Calibration shall be conducted according to the manufacturer’s recommendations

• At a minimum, a function check (e.g., bump test) shall be done prior to each days use.

• An instrument maintenance record shall be maintained.

Calibration and Bump Testing


Why use an Automated (GX2) Test System? • Ease of Use

◘ Fully automated making bump testing and calibration so easy, that anyone can do it

◘ Electronic cylinder holder allows customers to be up and running with no setup required

• Proactive Safety

◘ Track bump testing and calibrations for instrument fleet

◘ Download instrument data logs and send automatic emails when action is required

• Best Total Cost of Ownership

◘ Track gas usage, gas expiration, end of sensor life warnings, sensor replacements, and instrument history to reduce down-time and overall maintenance costs

◘ Optimized for use with Xcell sensors yielding fastest test times in the market!

Galaxy GX2 - Instrument

Fleet Management


The Leader in Sensor

Technology


XCell Sensor

Designed and built by MSA

• MSA IS Advancing Sensor Technology!

• Our sensors are designed for OUR instruments!

• We have the experts to support YOU!


XCell Ex Sensor

XCell Ex - Catalytic Combustible Sensor

• 4-Year Life, Fast Response, Very Durable

• Only industry sensor with two detector beads (Patent Pending)

◘ Only one bead active at a time – doubles working life of sensor

• Patent-Pending metal alloy support wire for increased

durability

• More poison resistance to silicones and sulfur compounds

• Fast T(90) response time, Typical < 10 sec CH4


XCell O2 Sensor

XCell O2 - Oxygen Sensor

• >4-Year Life, Fast Response, Very Durable

• Long life from patent-pending “Lead Free” sensor design

◘ Nothing is consumed in the chemical reaction

◘ Most other sensors die at 2-years when enough lead is converted

• Fast T(90) response time, Typical < 10 sec O2


MSA provides the best portable instrument solutions!

• Speed of response, advantages of faster alarming

◘ Humans average walking speed = 83m per min

◘ t90 avg response time of big 4

♦ Xcell Sensors = 10-15 sec (~20m into the CS)

♦ Industry avg = 25-30 sec (>40m into the CS)

♦ Action can be taken in half the time in potential life-threatening

situations!

• Best Total Cost of Ownership

◘ Longer Sensor Life

◘ Calibration Gas Flow Rate

We have the best gas detection instruments in the market!

• Reliable, durable and easy to use

Confined Space: Why

MSA is Simply the Best


Industry first LEL, O2, H2S, CO, SO2 bump and calibration using a single cylinder

• Bump test time 10 seconds

• Calibration time 60 seconds

Why are we first?

• XCell SO2 sensor T90 response time is 6 times faster than industry average

• Slower SO2 calibration times cause long exposures of H2S which will kill/poison the LEL sensor

Industry first Big 5

Bump & Calibration


Using the Right Tool

Pump or Diffusion

Altair 4X and Altair 5X


Advanced Features

MSA exclusive MotionAlert™ feature

• Indicates “man down”

MSA exclusive InstantAlert™ feature

• Activates all alarms when desired

Sensor End Of Service Life Indicator

• 4-6 Week advanced Warning

Most rugged instrument in its class

• 10-foot drop 5X

• 20-foot drop 4X

Bump checkmark √ (24 hrs)

• Displays successful test result


Personal 4-gas monitor

• LEL, O2, CO,H2S

• Rechargeable lithium-polymer battery

◘ 24 hour run time

Standard:

Data Log

Pass Device

Extreme Environment Tested

• 20 ft drop test

• IP 67 “Third Party Tested”

Altair 4X Multigas Detector


Industry Leading

Standard 3-year warranty • Sensors

• Electronics

• Battery

Sulfur Dioxide detection now available

in the Altair 4X!

Combined with Low Concentration

H2S channel Standard

H2 resistant Co Sensor


Altair 5X Multigas Detector

Only Instrument in its class with internally integrated pump!

Multi-gas monitor

• Detects up to 6 gases: combustible, O2, H2S, CO, SO2, CO2 & additional toxic gases

• Rechargeable lithium-ion battery

• Alkaline pack available as an accessory

• Color or monochrome display option

• Multilingual


Remote Sampling

Redundant Filter System for Instrument Protection

• Probe Filter

• Instrument Filter

Speed -1 Second Per foot of sampling line

• Also allow for sensor response

• Quick Connect

• Up to 100 FT

Specialty Applications

• Dilution Tube

◘ Inert Testing


Warranty

Standard 3-year warranty

• LEL, O2, CO, H2S, SO2, IR Sensors

• Electronics

• Battery

2-year warranty

• NH3 and Cl2 Sensors

Other sensors warranted for at least 12 months

Your Turn: Ask the Expert

Magid Contact

Contact your local Magid sales rep at:

1-800-444-8030

[email protected]

www.magidglove.com

Stuart Becker

Territory Sales Manager

1-800-672-2222

[email protected]

www.MSAsafety.com

Thank You!

The ABCs of Confined Space Safety

abc's of confined space safety

Health & Medicine