Inficon D-TEK CO2 Mode D'emploi page 6

Auto Zero Mode
D-TEK CO by default will automatically zero to the background, allowing you to
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search for a higher concentration and help pinpoint the leak source. For example,
if a leak is detected and D-TEK-CO
alarm will stop. This indicates the unit has zeroed to the new background. It will
now take a larger concentration of CO
clean air (no CO ) for several seconds will reset the zero point to normal.
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Manual Zero Mode
D-TEK CO can be changed to manual mode, which disables the auto zero
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feature and allows the user to manually zero to the current background.
NOTE: For best performance, allow D-TEK CO
before enabling manual zero mode.
1. To enable manual zero mode, press and hold the HI/LO button for 5 seconds.
The HI and LO indicators will flash quickly for several seconds followed by a
steady flashing of the HI indicator when manual zero mode is active.
2. Press the HI/LO button to zero to the current background. The HI and LO
indicators will flash quickly while D-TEK CO
NOTE: While in manual zero mode, it is best to periodically zero to the current
background even if a leak is not detected.
3. To return to auto mode, press and hold the HI/LO button until the HI indicator
becomes steady.
NOTE: When D-TEK CO
Changing the Filter Cartridge
D-TEK CO utilizes a specially designed filter cartridge that fits into a protective
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cap. The filter cartridge should be changed when it appears dirty or when
substances trapped in the filter cartridge seem to be affecting the sensitivity of
D-TEK CO .
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NOTE: Water or oil will not penetrate the filter material, but will prevent airflow
through the filter and affect sensitivity.
Always operate D-TEK CO
Operating without a filter can cause serious damage to the
instrument.
1. Ensure D-TEK CO
2. With the probe tip pointing downward, unscrew and remove the probe cap.
NOTE: Do not allow moisture or dust to get into the probe.
is held in that area for several seconds, the
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to cause an alarm. Holding D-TEK CO
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is turned ON, it will always default to auto zero mode.
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is OFF.
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to warm up for 5 to 10 minutes
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zeros.
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with a filter cartridge installed.
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6
in
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