Vaisala DMP248 - Product Description; General characteristics

_________________________________________________________________________CONTENTS
VAISALA __________________________________________________________________________ I
Table of contents
CHAPTER 1 GENERAL INFORMATION.......................................................................................................1
SAFETY................................................................................................................................................................1
WARRANTY .........................................................................................................................................................1
CHAPTER 2 PRODUCT DESCRIPTION.........................................................................................................3
GENERAL CHARACTERISTICS...............................................................................................................................3
THE OPERATING PRINCIPLE OF THE DMP248.......................................................................................................4
Use in high pressure.......................................................................................................................................6
CHAPTER 3 INSTALLATION...........................................................................................................................7
SELECTING THE PLACE OF INSTALLATION............................................................................................................7
MOUNTING THE TRANSMITTER ............................................................................................................................7
Mounting; overview.......................................................................................................................................9
Mounting the probe directly to the process..................................................................................................10
Installing the probe through the ball valve assembly...................................................................................11
Mounting the probe with a quick connect....................................................................................................17
Sample cell...................................................................................................................................................18
Grounding ....................................................................................................................................................20
Connections..................................................................................................................................................22
Connection to an AC supply........................................................................................................................23
CHAPTER 4 COMMISSIONING.....................................................................................................................25
SECURITY LOCK JUMPER....................................................................................................................................25
SELECTING THE ANALOGUE OUTPUTS................................................................................................................26
CONNECTING THE RS 232C SERIAL BUS............................................................................................................28
CHAPTER 5 COMMANDS...............................................................................................................................33
COMMANDS AND SECURITY LOCK JUMPERS.......................................................................................................33
LED COMMANDS...............................................................................................................................................34
DISPLAY/KEYPAD COMMANDS...........................................................................................................................35
CHAPTER 6 CALIBRATION AND ADJUSTMENT.....................................................................................55
HUMIDITY CALIBRATION AND ADJUSTMENT......................................................................................................55
Two-point calibration and adjustment adjustment procedure ......................................................................56
Using serial commands .............................................................................................................................................56
Using display/keypad commands..............................................................................................................................57
Using LED commands..............................................................................................................................................58
Humidity calibration table............................................................................................................................59
TEMPERATURE CALIBRATION ............................................................................................................................59
One point offset correction...........................................................................................................................59
Using serial commands .............................................................................................................................................59
Using display/keypad commands..............................................................................................................................60
Using LED commands..............................................................................................................................................60
Two-point temperature calibration and adjustement....................................................................................61
Using serial commands .............................................................................................................................................61
Using display/keypad commands..............................................................................................................................62
Using LED commands..............................................................................................................................................62
CALIBRATION OF THE ANALOGUE OUTPUTS.......................................................................................................63
Using serial commands................................................................................................................................63
Using display/keypad commands.................................................................................................................63