Vaisala PTU300 Guide de l'utilisateur télécharger pdf (Page 125)

Chapter 4 _________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 123

Data Recording

Data recording function is always on and collects data automatically into

the memory of the device. If the optional data logger module is installed,

the transmitter uses it automatically. Recorded data do not disappear

from the memory when the power is switched off. Collected data can be

observed in a form of a graph in the graphical view of the display or it

can be listed out by using the serial line or MI70 Link program.

Selecting Data Recording Quantities

If the device is provided with the optional display, the recorded quantities

are always those selected for the display. Up to four quantities can be

recorded at a time. For instructions on how to select the display quantities

with the keypad, see section Changing Quantities and Units on page 101.

DSEL

Use the serial line command DSEL to select the quantities to be recorded

if the transmitter is not equipped with display/keypad.

DSEL [xxx]<cr>

where

xxx

Data recording quantity. For more information on available

quantities and units, see

Table 4 on page 22. For more

information on optional quantities, see Table 5 on page 22.

Example:

>dsel rh t tdf

RH T Tdf

Enter the command without parameters and press ENTER to display the

current recording parameters.

View Recorded Data

If the device is provided with the optional display, the graphical display

shows the data of the selected quantities, one at a time. For details about

graphical display, see section Graphic History on page 70.

You may also dump the logged data to the serial line in numeric form

with the following commands.

1 2 ... 120 121 122 123 124 125 126 127 128 129 130 ... 216 217

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Vaisala PTU300 Guide de l'utilisateur Page 125