Hold Function; Max Avg Min Function; Map Function - AEMC 1227 User Manual

Thermo-anemometer data logger

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3.1.3. HOLD Function

Pressing the

button freezes the display. A second press unfreezes it.

You can monitor the maximum, minimum, and average measurements by pressing the

button. This displays the

words MIN/AVG/MAX at the top of the display (see the following illustration). In this mode, pressing

once

displays the maximum value measured during the current session. A second press displays the average value,

and a third displays the minimum. Finally a fourth press restores the normal display. Subsequent presses of

repeat this cycle.

To exit MAX AVG MIN mode, long-press

. Note that when MAX AVG MIN mode is active, the MAP function is

deactivated.

The MAP function enables you to map air speed, air flow, or temperature for a 2-dimensional space or surface.

For example, in MAP mode you can measure the air speed at specific points within a room. You can then

download the recording to a computer running DataView, and display the measurements as a 2-dimensional

matrix, creating a "map" of the air speed within the room.

Before mapping an area, it is good practice to create a chart identifying where to make measurements. For

instance, the following illustration is an example measurement chart for a room. Each red circle represents a

measurement point.

To enter MAP mode, press

for >2 seconds. Place the sensor at the first measurement point and press

record the value in memory. The MAP counter is incremented. Repeat this step for all the other points of the map.

Thermo-Anemometer Data Logger Model 1227

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