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CO15-en-GB_v1.0   6/17 

Alarm Settings 

An audible beep sounds at 25ppm alerting the user to 
dangerous CO levels. Change the alarm limit value by 
following the steps below. 

1.

 

Turn OFF the meter by pressing the 

 

button. 

2.

 

Long press the 

 

button until the options display 

on the screen. 

3.

 

The LCD cycles through these options: 25, 30, 35, 
45, 50, 70, 100, 200 ppm. 

4.

 

Release the 

 

button at the desired alarm limit 

value. 

5.

 

The meter enters the self-test mode. 

Backlight 

The meter features a backlit LCD for use in dimly lit areas. 
Press the 

 button to power ON and OFF the backlight. 

Auto Power OFF 

The meter automatically powers OFF after 15 minutes of 
inactivity.  

Maintenance 

Battery Replacement 

1.

 

To access the batteries, remove the rear battery 

compartment cover by pushing up on the tab at the 
bottom of the meter. Do not operate the meter with 
the battery compartment open.  

2.

 

Replace the (3) 1.5V AAA batteries observing correct 

polarity.  

3.

 

Re-assemble the meter before use. 

Safety: Please dispose of batteries responsibly; never dispose of 
batteries in a fire, batteries may explode or leak. If the meter is not 
to be used for 60 days or more, remove the battery and store 
separately. 

Never dispose of used batteries or rechargeable batteries 
in household waste. 
As consumers, users are legally required to take used 
batteries to appropriate collection sites, the retail store 
where the batteries were purchased, or wherever 
batteries are sold. 
Disposal: Do not dispose of this instrument in household 
waste. The user is obligated to take end-of-life devices to 
a designated collection point for the disposal of electrical 
and electronic equipment.

 

Summary of Contents for CO15

Page 1: ...User Manual Carbon Monoxide Meter Model CO15 Additional User Manual Translations available at www extech com ...

Page 2: ... 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 ge...

Page 3: ...ture 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 ...

Page 4: ...MAX reading mode 3 Secondary Display 4 Unit of measure Button Descriptions Turn the meter on and off short press Select alarm setpoint value long press from a powered OFF state release the button when desired alarm limit is displayed Turn the backlight on and off short press Toggle temperature units long press during self test period Reset Maximum CO value long press in normal operating mode ...

Page 5: ... environment and displays the reading in parts per million PPM in the primary display 1 To take a measurement trace the CO15 around the area of the suspected leak 2 The meter indicates the presence of carbon monoxide CO in PPM in the primary display The secondary display indicates the maximum value since powered on 3 Long press the backlight button while in measurement mode to reset the maximum va...

Page 6: ...e the rear battery compartment cover by pushing up on the tab at the bottom of the meter Do not operate the meter with the battery compartment open 2 Replace the 3 1 5V AAA batteries observing correct polarity 3 Re assemble the meter before use Safety Please dispose of batteries responsibly never dispose of batteries in a fire batteries may explode or leak If the meter is not to be used for 60 day...

Page 7: ...ace batteries Display Display switches off Check for low battery indicator replace batteries Display Calibration Failure Check for low battery indicator replace batteries E2 Measurement is below the range of the meter Check readings in a different area E3 Measurement is above the range of the meter Check readings in a different area E4 Data error Contact Extech for service E31 A D failure Contact ...

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