Vaisala PTU200 - Manual (Page 25)

C HAPTER 4_____________________________________________________________C OMMISSIONING
V AISALA _________________________________________________________________________ 21
Example of setting the limit to 0.5 hPa:
>pdmax
Pd max
: 1.000 ? 0.5
>
Example of exceeding the Pdmax limit:
>form
4.2 P " " UUUU \r \n
? 4.2 P1 " " P2 " " P " " UUU " " ERR \r \n
>send
1020.30 1020.32 1020.31 hPa 00
>send
1020.30 1022.30 1021.30 hPa 11
>
Please use the ERRS command to analyze problems.
KEYLOCK Setting the keyboard lock on/off
KEYLOCK x
where:
x = ON or OFF
The KEYLOCK command is used to set or inspect the keypad lock
condition of the display cover keypad. The PTU200 transmitters with
display cover are supplied with the keypad locked (KEYLOCK OFF).
It is thus possible to inspect the settings but not to change them. With
the keypad locked the settings can be inspected but not changed.
Example:
>keylock on
Keylock
: ON
>
If anyone tries to change the settings using the keypad with the
KEYLOCK ON, the transmitter will display
NO MODIFICATIONS
ALLOWED for a few seconds and then returns to the original display.
Hardware settings
Inside the transmitter, there is a connector X15 (see F IGURE 4-2 ) and a
dip switch S1 (see F IGURE 4-3 ). These are used to make the main
hardware settings of the PTU200.