Vaisala HMP228 - Manual (Page 25)

HMP228
M210282en-A Operating Manual
19
with button s and the second line with button t; all selections are stored
with ENTER. The selected quantities appear on the display also after power
failure. After reset the transmitters are always in the display mode.
The display also shows error messages and alarms if they occur.
3.4.2 Command mode
Press the CL key to enter the command mode. The first display is the main
menu:
The commands can be scrolled with the arrow keys. The currently active
command flashes; the desired command is selected with the ENT key. When a
menu is displayed, either the first command or the currently valid setting
flashes. The CL key takes the transmitter back to the display mode.
3.4.3 Entering numbers
When the transmitter needs numbers to be entered into the programme (e.g.
when scaling or setting the analogue outputs, in calibration or when giving the
transmitter an address), the field is either empty or the currently valid figure
is displayed. Any previously given value is deleted with the CL key.
When the field is empty, a cursor blinks on the right side of the display.
Pressing the arrow keys brings either a blank ( ), a comma (,), a dash (-), a full
stop (.) or a number from 0 to 9 on the display. The right character is selected
with ENT; after that the number or numbers move left one step. Entering
numbers is ended with selecting a blank ( ) and pressing ENT. The last charac-
ter entered can be deleted with CL. If CL or ENT key is pressed when the field
is empty, the programme returns to the previous display.
With some commands (e.g. calibration) figures are changed using the arrow
keys. When an arrow key is pressed continuously for a while, the numbers
start changing at an increasing rate.
The display commands are described in Appendix 2.