Vaisala HMP228 User Manual

Page 69

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HMP228 Transmitters

M210282en-A

Appendix 1: Serial commands

63

XPRES

Setting the pressure for mixing ratio calculations tempo-
rarily

XPRES pppp.pp <cr>

pppp.pp =

pressure (hPa)

The function and format of XPRES are the same as those of the PRES com-
mand except that with XPRES command the setting is valid only until a reset
is given, power is turned off or pressure is set to zero with XPRES. After this
the pressure stored with command PRES is valid again.

CDATE

Entering calibration date

CDATE xxxxxx <cr>

xxxxxx =

calibration date (000101...991231)

When the latest calibration date has to kept in memory, it is entered as fol-
lows:

>CDATE 940506 <cr>

If the command is given without the date, the transmitter outputs the latest
calibration already in memory.

>CDATE <cr>
940420

The date can be given in any format; however, the maximum number of digits
is six.

DATE

Setting the date

DATE <cr>

For example, to enter a new date:

>DATE <cr>
Current date is 1993-01-30
Enter new date (yyyy-mm-dd) : 1993-06-12 <cr>

When the current date is asked, the new date is passed with <cr>.

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