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5. Cautions
Carefully read this clause before use.
Caution in use
1) Probe and instrument are of precision type. Be careful not to give them shocks or not let them drop.
2) Handle the probe with care as its sensing element is subject to contact with surrounding objects.
3) Be careful about extreme bending or expansion of sensor cord, which may be the cause of trouble.
4) Never touch the sensor. There is the possibility of getting burnt since temperature of the air speed
sensor may be about 100°C at measurement
5) Never remove the metal mesh of the detection window at measurement.
Cautions on characteristics
1) If ambient temperature changes with the protection cap on the sensor in the air speed measurement
mode, digital display may change. This is because the radiation of sensor in non air-flow state is
different from the radiation in air stream and therefore it is not abnormal.
2) Be careful not let the maximum temperature of air to be measured exceed 80℃.
3) If sensor or mesh of detection window is stained with dusts or impurities in the form of tar in air to be
measured the accuracy of measured value of air speed will be degenerated. In such a case, contact
us for cleaning (on charge basis).
NB. Never use water or other solvents.
4) Never use SK-73D in the place of condensing and splashing water. It may be causes of the
deterioration of electrical insulation or malfunction of sensor.
Caution in general
1) Never put sensor probe into water or other solvents.
2) SK-73D is calibrated in normal ambient. So if the component of air is extremely different, an error
may arise in the measured value.
3) Never touch the sensor until its temperature falls when measurement of air of more than 50°C was
made. There is the possibility of getting burnt.
4) Do not use this unit in dusty environment. Doing so may be a cause of malfunction of the sensor.
5) Never disassemble or modify this unit.
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