Extech CO15 Instruction Manual

User Manual

Carbon Monoxide Meter

Model CO15

Additional User Manual Translations available at www.extech.com

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Introduction

Thank you for selecting the Extech CO15 Carbon
Monoxide Meter. The CO15 is a digital, pen style meter,
that measures and displays carbon monoxide (CO)
concentrations between 0 and 999 parts per million
(ppm). The CO15 can be used for ambient air safety
checks of residential areas, appliances, HVAC service on
furnaces and hot water heaters, home inspections, and
industrial environments where the accumulation of CO
is possible.
This device is shipped fully tested and calibrated and,
with proper use, will provide years of reliable service.
Please visit our website (www.extech.com) to check for
the latest version and translations of this User Manual,
Product Updates, and Customer Support

Features

 Adjustable carbon monoxide warning level
 Dual Display
 Long life electrochemical sensor
 Audible alarm
 Backlit LCD for easy viewing in dimly lit areas
 Low battery indicator
 Auto power off
 Included wrist strap and carry pouch

Safety Information

IMPORTANT SAFETY NOTES

 The CO15 Carbon Monoxide Monitor is intended for

general purpose Air Quality monitoring only, and has
not been certified for use pursuant to any state or city
safety Carbon Monoxide Alarm or Monitoring

requirements.

 The CO15 Carbon Monoxide Monitor has not been

tested by an independent lab to comply with UL 2034

or IAS 6-96 standard.

 It is the responsibility of the customer to obtain and

apply current local, state, and national regulations with
regard to CO alarms, monitoring and testing.

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 Electromagnetic (EMI) interference my cause erratic

meter readings; do not place meter near areas of high
EMI when taking CO measurements.

 Recovery time is required after the meter has been

exposed to high levels of CO (the longer the exposure,
the longer the recovery time).

Carbon monoxide is life threatening even at
relatively low concentrations; learn and
recognize the effects of CO poisoning (see Table
below). Do not use this meter as a personal
safety monitoring device.

Effects of Carbon Monoxide (CO) Poisoning

Warning: Ensure that the meter is powered on in room

temperature and in an area free of CO. If not, the meter
will read incorrectly when subsequently measuring CO.

0-1 PPM

Normal background levels

9 PPM

Maximum allowable short term
exposure

50 PPM

Maximum allowable continuous
exposure level in any 8-hour period,
according to OSHA

200 PPM

Mild headache, fatigue, nausea and
dizziness after 2-3 hours

400 PPM

Frontal headache with 1-2 hours, life
threatening after 3 hours

800 PPM

Dizziness, nausea, convulsions within
45 minutes. Unconsciousness within 2
hours. DEATH WITHIN 2 TO 3 HOURS

1600 PPM

Headache, dizziness, nausea within 20
minutes, DEATH WITHIN 1 HOUR

3200 PPM

Headache, dizziness, nausea within 5­10 minutes. DEATH WITHIN 25-30
MINUTES

6400 PPM

Headache, dizziness, nausea within 1­2 minutes. DEATH WITHIN 10-15
MINUTES

12800 PPM

DEATH WITHIN 1 TO 3 MINUTES