1. Carbon Monoxide Monitoring
Presented by: Interscan Corporation

2. CARBON MONOXIDE SYNONYMS Coal gas Carbon oxide Carbonic oxide
Exhaust gas
Flue gas
Monoxide

3. CARBON MONOXIDE IS THE MOST COMMON TOXIC GAS
CO is one of the few toxic gases that can be encountered
at home or on the job
As a product of combustion, it is ubiquitous
Colorless and odorless, CO is a silent killer

4. CO HEALTH EFFECTS
At ppm, can cause fatigue in healthy individuals, and chest pain in those with heart disease.
At higher concentrations, can cause impaired vision and coordination; headaches; dizziness; confusion; nausea.
Can cause flu-like symptoms (ca. 250 ppm) that clear up
when in clean air.
At 2000 ppm, can be rapidly fatal

5. TOXICOLOGY Carbon monoxide is an asphyxiant
Inhalation of CO causes tissue hypoxia by preventing the blood from carrying sufficient oxygen
Carbon monoxide combines reversibly with hemoglobin to form carboxyhemoglobin
The reduction in oxygen-carrying capacity of the blood is proportional to the amount of carboxyhemoglobin formed

6. Occupational Exposure Standards

7. OSHA Standards (as of Feb, 2011)
The OSHA PEL ( Permissible Exposure Limit, based on an
8-hour time-weighted average) is 50 ppm
Special provision for maritime workers/longshoring
[29 CFR (a)(1)(i))]
…employees shall be removed from the enclosed space if the CO concentration exceeds a ceiling of 100 ppm.
Exception: The ceiling shall be 200 ppm instead of 100 ppm for Ro-Ro operations.

8. ACGIH TLV® [Threshold Limit Value]
(as of Feb, 2011)
TLV-TWA (based on an 8-hour time-weighted average)
is 25 ppm
Biological Exposure Index (BEI®) is recommended for carbon monoxide ─
Based on percent carboxyhemoglobin saturation in blood, or end-expired CO concentration in alveolar air

9. NIOSH REL [Recommended Exposure Limits]
(as of Feb, 2011)
TLV-TWA (based on an 8-hour time-weighted average)
is 35 ppm
Ceiling value of 200 ppm
(should not be exceeded at any time)

10. NIOSH IDLH [Immediately Dangerous to Life and Health]
(as of Feb, 2011)
1200 ppm
IDLH: The airborne concentration from which a worker could escape without injury or irreversible health effects, in the event of the failure of respiratory protection equipment.
IDLH values are based on effects that might occur as a consequence of a 30-minute exposure.
Regardless of the 30-minute basis, if equipment failure occurs,
LEAVE THE AREA AT ONCE!!

11. GRADE “D” BREATHING AIR
Per ANSI / CGA G
As it pertains to carbon monoxide…
No more than 10 ppm

12. Applications Engineering

13. AT A MINIMUM, CONSIDER
Portable/survey or fixed continuous monitoring requirement?
Interfering gases present?
Will unit be used/installed in electrically hazardous area?
Is data logging needed?

14. Some Carbon Monoxide
Monitoring Products
Offered By

15. PORTABLE ANALYZER

16. SINGLE POINT APPLICATION
CONTINUOUS MONITORING SYSTEM
SINGLE POINT APPLICATION

17. CONTINUOUS MONITORING SYSTEM
TWO POINT APPLICATION

18. MULTI-POINT (THREE OR MORE) APPLICATION
CONTINUOUS MONITORING SYSTEM
MULTI-POINT (THREE OR MORE) APPLICATION

19. For Survey Applications, We Recommend Our Nomad Data Logger
12-bit resolution
Models available for
0-100mV, 0-2.5V
and 4-20mA inputs
Self-contained units
also available for
temperature, humidity
and pH
Sampling rate adjustable—1 second to 10 hours in 1 second intervals
Storage capacity—16336 readings
Excellent software included

20. Visualize your measurement session with an
auto-scaling time history graph

21. Time history graph detail screen
Zoomed in on particular portion of the curve

22. Ability To View All Individual Data Points

24. DATA ACQUISITION, ARCHIVING,
ARC-MAX®
DATA ACQUISITION, ARCHIVING,
AND REPORTING
PACKAGE

25. ARC-MAX® is designed to meet and exceed all toxic gas regulatory reporting requirements
Protect your employees…AND your company!

26. Only ARC-MAX® gives you
Shift reports, supporting up to four shifts/day,
and the shifts can overlap
Alarm logs, updated as alarms occur
Live and historic trending
STEL and TWA tracking, continuously updated

27. ARC-MAX® MAIN SCREEN

28. ARC-MAX® SHIFT REPORT

29. ARC-MAX® TRENDING

30. ARC-MAX® ALARM LOG

31. For more information on how
Interscan can help you solve your carbon monoxide problems,
Visit our website