Vaisala PTB220 User Manual download pdf (Page 20)

USER'S GUIDE_______________________________________________________________________

14 ___________________________________________________________________ M210194EN-A

Mtim : 32

>filt off <cr>

Filter : OFF

>reset <cr>

NOTE

Remember to give the RESET command to initialize the new

measurement mode.

The measurement time (mtim) setting of 32 is recommended in order

to achieve the best output stability at the speed of 10 measurements

per second. The filter command ensures that no numerical filtering is

performed in the fast measurement mode. The MTIM and FILT

commands are used only together with the MMODE FAST command.

In the NORMAL measurement mode, the AVRG command replaces

the MTIM and FILT commands in the PTB220 series digital

barometers.

NOTE

Always remember to return the switch SW4 to write DISABLE

position (OFF).

PULSE Selecting the PULSE output mode

PULSE a s r o <cr>

where:

a=ON or OFF (activation/deactivation)

s = SLOW or FAST (speed)

r = LOW or HIGH (resolution)

o = pressure offset (hPa/mbar units only)

The PULSE command is used to activate or deactivate the pulse ouput

mode and to set or inspect the desired parameters. SLOW/FAST

selection affects the pulse rate: SLOW speed equals to 5 kHz pulse

rate and FAST speed equals to 50 kHz pulse rate. LOW resolution

equals to 0.1 hPa/mbar pressure resolution and HIGH resolution

equals to 0.01 hPa/mbar pressure resolution. In order to minimize the

number of output pulses the user can define an offset pressure so that

pulse outputting starts from the selected pressure level.

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Vaisala PTB220 User Manual Page 20