Vaisala HMP243 Guide de l'utilisateur télécharger pdf (Page 35)

HMP240 series

M210300en User's Guide

5.3.7 Others

5.3.7.1 Setting the averaging time

Disconnect the security lock jumper!

With command FILT the transmitter can be given the averaging time during

which the individual measurement samples are integrated to get an averaged

reading. The time can be set in seconds within the range of 0 - 1024 (0 = no

averaging time).

• Select More in the main menu, select More in the More menu and

select Filt in the second More menu:

• Pressing ENT returns the programme to the main menu without

changing the filtration time.

• If the filtration time needs to be changed, press CL; enter the new

filtration time with the arrow keys.

5.3.7.2 Setting the pressure for mixing ratio and wet bulb

calculations

The atmospheric pressure has an effect on mixing ratio and wet bulb. Accurate

calculations can be achieved only when the ambient pressure is taken into

consideration.

• Select More in the main menu:

• Select Pressure:

• Pressing ENT returns the programme to the main menu without

changing the pressure reading.

• If the pressure needs to be changed, press CL; enter the new pressure

with the arrow keys

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Vaisala HMP243 Guide de l'utilisateur Page 35