Vaisala PTB220 - Manual (Page 38)

U SER ' S G UIDE _______________________________________________________________________
32 ___________________________________________________________________ M210194 EN -A
>
>form
4.2 P " " UUUU #r #n
? 4.2 P1 " " P2 " " P3 " " P " " UUU " " ERR #r #n
>send
1020.30 1020.31 1020.32 1020.31 hPa 000
>send
1020.30 1022.31 1020.32 1020.31 hPa 010
>send
1020.30 1022.31 1024.32 1022.31 hPa 111
Note that only the acceptable pressure readings are used to calculate
the average output pressure reading. However, if all pressure readings
differ too much, the average reading is calculated from all individual
readings but all ERR field digits turn to be 1´s as well.
Use the ERRS command to analyze problems (see page 67).
KEYLOCK Setting the keyboard lock on/off
KEYLOCK x
where:
x = ON or OFF
The KEYLOCK command is used to set or inspect the keyboard lock
condition of the display cover keyboard. The PTB220 barometers with
display cover are supplied from factory with the keyboard unlocked
(KEYLOCK ON) and it is thus not possible to inspect the settings nor
change them. If the user wishes to protect the barometer settings so
that they can be inspected but not changed using the display cover
keyboard, the keyboard lock has to be turned on (KEYLOCK ON).
With the keyboard locked the settings can be inspected but not
changed.
Examples:
>keylock
Keylock
: OFF
>keylock on
Keylock
: ON
>
If anyone tries to change the settings of the barometer using the
keyboard with the KEYLOCK ON, the barometer will display NO
MODIFICATIONS ALLOWED for a few seconds and then returns to
the original display: