Operating Instructions; Applications - TIF 8900 Manual Del Proprietário

OPERATING INSTRUCTIONS

Once the batteries are fully charged, the instrument is ready to use (before use, carefully read and
understand the Warnings and Cautions on the previous page).
1. Turn the instrument on in a non-contaminated atmosphere by moving the slide switch to the
"ON" position. The power light should be lit. No sound will be heard.
2. The leftmost LED will illuminate to show that the unit is switched on.
3. After the automatic warmup period is completed, about 30 seconds, a ticking sound will be
heard.
4. Adjust the sensitivity control upwards until a rapid ticking signal is heard
(Hi sensitivity).
5. The frequency of the tick is an indication of the sensitivity. Move the knob until the ticking is
rapid, for Hi sensitivity, or slow, for Lo sensitivity.
NOTE: If a steady tick rate cannot be maintained, it is indicative that the
batteries may need to be recharged.
6. Search the general area of the leak. When a detectable compound enters the tip, the tick rate
speeds up.
7. In conjunction with the increased tick rate, the LEDs will light from left to right as a com
bustible is detected. The larger the concentration, the more LEDs will light.
8. In most cases, it will not be necessary to adjust the sensitivity of the unit. However, if the
siren sounds before a possible leak source can be found, it is likely that air is contaminated
with heavy concentrations of gas. Therefore, you may desensitize the instrument by moving
the adjustment control downwards to Lo sensitivity (slow ticking).
9. If you are searching for extremely small leaks, make certain the control knob is in the Hi
sensitivity position (rapid ticking).
NOTE: Occasionally, on newly installed piping, a joint compound may be used which contains a
combustible solvent. this could result in an erroneous signal.

APPLICATIONS

The TIF8900 is a general purpose combustible gas detectors which may be used in a situation
where a combustible gas, vapor or residue needs to be found. Some applications are:
Note:
Although the unit will respond to high levels of Carbon Monoxide (above 2000ppm), it
• Gas lines and pipes
• Fuel in marine bilges
• Exhaust and fuel leaks
• Heat Exchanger leaks
• Liquid or gas fired heating systems
should not be used as a detector for this gas in normal room or working atmospheres. It can,
however, be used to pinpoint a leak as described in the Operating Instructions.
• Propane filling stations
• Check manholes for safety
• Detect arson residue
• Indor Air Quality (IAQ) tests
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