CO260-en-GB_v1.0 8/17
6
Powering the Meter
Short press the /SET button to turn the meter ON or OFF. At power up, the meter emits a
short beep and performs a 30-second warmup before entering normal operating mode. After
the countdown, the primary LCD will display the current readings. The secondary display will
alternate between the current date and time.
Taking Measurements
The meter begins measuring in the selected mode, when powered on, and the sensor responds
every 1 second. If the operating environment changes (example: from high to low temperature),
it requires 30 seconds for the CO
2
sensor to respond and up to 30 minutes for the relative
humidity sensor to respond.
Measuring Carbon Dioxide (CO
2
)
1.
Short press the M/REL button to change the mode to CO
2
if necessary.
2.
To take a measurement, trace the CO260 around the area of the suspected leak.
3.
The meter indicates the presence of carbon dioxide (CO
2
) in ppm in the primary display. The
secondary display indicates the current date and time alternately.
NOTE: Do not hold the meter close to your mouth or any other source of CO
2
.
Measuring Carbon Monoxide (CO)
1.
Short press the M/REL button to change the mode to CO, if necessary.
2.
To take a measurement, trace the CO260 around the area of the suspected leak.
3.
The meter indicates the presence of carbon monoxide (CO) in ppm in the primary display.
The secondary display indicates the current date and time alternately.
4.
The display will flash and an audible beeper sounds at 25 ppm alerting the user to
dangerous CO levels. The higher the concentration of CO, the faster the beeper will sound.
The display will stop flashing once the measured CO is below the alarm limit value.
Measuring Air Temperature and Calculating Dew point and Wet bulb
1.
Short press the M/REL button to change the mode to air, dew point, or wet bulb
temperature.
2.
To take a measurement, trace the CO260 in the testing area.
3.
The primary display indicates the air temperature, dew point, or wet bulb temperature
depending on the selected mode. The secondary display indicates the current date and time
alternately.
4.
Note that Dew Point and Wet Bulb Temperature displays are calculations made from Air
Temperature and Relative Humidity measurements.
Measuring Relative Humidity %
1.
Short press the M/REL button, if necessary, to change the mode to Relative Humidity.
2.
To take a measurement, place the CO260 in the testing area.
3.
The primary display indicates the relative humidity measurement and the secondary display
indicates the current date and time alternately.
