Vaisala PTU200 Series Betriebsanweisung PDF herunterladen (Seite 19)

CHAPTER 4_____________________________________________________________COMMISSIONING

VAISALA _________________________________________________________________________ 15

DFORM Defining the display format

DFORM <cr>

The DFORM command is used to define the format for the optional

LCD display. There are two rows containing 16 characters each. The

user can define the following fields into the display format:

pressure quantities P1, P2, P (average), PD

(difference)

pressure trend *) TRE (three-hour trend)

pressure tendency A (three-hour tendency)

temperature quantity of PT100

and HMP45D sensor heads *) T

temperature quantity

of HMP45 TH

relative humidity RH

units U, UU, UUU, UUUU, UUUUU

serial number of the transmitter SN

error status ERR (three characters)

stability indicator OK (uses three characters)

number fields n.m where: n = 0 - 9, m = 0- 9

text fields within “ “ characters

*) The PTU200 transmitter cannot output + sign for pressure trend or

temperature reading; a space is output instead.

Any previous DFORM definition may be removed and the original

factory setting restored with the following command:

>dform * <cr>

Example of setting the display format to show pressure, stability

indicator, pressure trend and pressure tendency:

>dform <cr>

4.2P""UUUUU OK \r \n

?""4.2P""UUUOK"trend " 2.1 TRE""UUU""A

<cr>

The display will look similar to the following:

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 63 64

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Vaisala PTU200 Series Betriebsanweisung Seite 19