Specifications; Troubleshooting - Extech Instruments CO15 User Manual

Specifications

Measurement range
Resolution
Accuracy
Sensor Type
Power supply
Battery life
Dimensions / Weight:

Troubleshooting

Error Problem
No display when pressing
Display
power button
Display Display switches off
Display Calibration Failure
Measurement is below
E2
the range of the meter
Measurement is above
E3
the range of the meter
E4 Data error
E31 A/D failure
Measurement circuit
E33
failure
Self-test failure
E35
Sensor Failure
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0-999 ppm
1 ppm
0 ~ 100 ppm: ± 20%
100 ~ 500 ppm: ± 15%
Accuracy stated for ambient
conditions: 20
and 50% RH ±20%RH
Electrochemical
(3) 1.5V 'AAA' batteries
Approx. 250 hours (backlight
off); 35 hours (backlight on)
175 x 47 x 28mm (6.9 x 1.8 x
1.1") / 158.8g (5.6 oz.)
ISO-9001 Certified
www.extech.com
7
o o
C ±5 C (68
Solution
Ensure batteries are
properly installed with
correct polarity
Replace batteries
Check for low battery
indicator; replace
batteries
Check for low battery
indicator; replace
batteries
Check readings in a
different area
Check readings in a
different area
Contact Extech for service
Contact Extech for service
Contact Extech for service
Power meter in an area
free of carbon monoxide
Contact Extech for service
CO15-en-GB_v1.0 6/17
o o
F ±9 F)