Vaisala PTB220 - Manual (Page 3)

_________________________________________________________________________C ONTENTS
V AISALA ___________________________________________________________________________ I
Table of contents
CHAPTER 1 GENERAL INFORMATION.............................................................1
Safety ..............................................................................................1
Warranty .........................................................................................2
CHAPTER 2 PRODUCT DESCRIPTION .............................................................3
Introduction ....................................................................................3
BAROCAP® pressure sensor .......................................................4
Measurement principle..................................................................6
Block diagram ................................................................................7
CHAPTER 3 GETTING STARTED.......................................................................9
CHAPTER 4 COMMISSIONING .........................................................................11
Operating modes .........................................................................12
SMODE Selecting the sending mode .......................................12
MMODE Selecting the measurement mode.............................13
PULSE Selecting the PULSE output mode ..............................14
Software settings.........................................................................16
SERI Serial bus settings ...........................................................16
ECHO Setting the serial bus echo on/off..................................17
FORM Defining the output format.............................................17
EFORM Defining the error output format .................................22
DFORM Defining the display format.........................................22
UNIT Setting the pressure and temperature units....................25
HHCP Setting the height of height correction...........................25
AVRG Setting the averaging time.............................................26
INTV Setting the output interval................................................27
ADDR Setting the barometer address (for POLL mode) ..........27
SCOM User specific SEND command .....................................28
PSTAB Setting the pressure stability indicator.........................29
PLARM Setting the pressure alarm levels................................30
PDMAX Setting the pressure difference limit ...........................30
KEYLOCK Setting the keyboard lock on/off .............................32
Hardware settings........................................................................33
CHAPTER 5 INSTALLATION.............................................................................37
Mounting.......................................................................................37
Electrical connections.................................................................38
Grounding.....................................................................................40
Pressure connections .................................................................41
CHAPTER 6 OPERATING..................................................................................43
RUN and STOP modes ................................................................43
R Starting the continuous output ..............................................44
S Stopping the output ...............................................................44
SEND Outputting a single message only .................................45
V Verification message.............................................................45
DNOS Self-diagnostics .............................................................45