Vaisala PWD22 - Page 4

USER'S GUIDE ____________________________________________________________________
2 ___________________________________________________________________ M210543EN-F
CHAPTER 4
INSTALLATION ............................................................................................ 31
Selecting Location .................................................................. 31
Grounding and Lightning Protection ................................... 33
Equipment Grounding ......................................................... 33
Internal Grounding ............................................................... 33
Grounding the Remote Units and the Communication
Cable ................................................................................... 33
Installation Procedure ............................................................ 34
Unpacking PWD22/52 ......................................................... 34
Storage ........................................................................... 34
Mounting .............................................................................. 35
Connections ............................................................................ 36
Connecting Cables .............................................................. 36
Basic Wiring ................................................................... 37
Power Supply ...................................................................... 39
Internal Heaters and Heaters for PWL111 ..................... 39
PWH111 Hood Heaters .................................................. 39
Communication Options ...................................................... 40
Serial Communication Settings ...................................... 40
Serial Transmission RS-232........................................... 40
Serial Multipoint Transmission RS-485 .......................... 41
Connection of the Maintenance Terminal ...................... 41
Relay Controls ..................................................................... 42
RELAY Command .......................................................... 44
Initial Settings ...................................................................... 45
Weather Parameters ...................................................... 45
Verifying the Installation ...................................................... 46
CHAPTER 5
OPERATION ................................................................................................. 49
Getting Started ........................................................................ 49
Operating Instructions ........................................................... 50
Entering and Exiting Command Mode ................................. 51
OPEN ............................................................................. 51
CLOSE ........................................................................... 51
Message Types ................................................................... 52
Message 0 ...................................................................... 53
Message 1 ...................................................................... 53
Message 2 ...................................................................... 54
Message 3 ...................................................................... 54
Message 4 ...................................................................... 54
Messages 5 and 6 .......................................................... 55
Message 7 ...................................................................... 55
Automatic Message Sending ............................................... 56
Message Polling ............................................................. 57
Precipitation Sums ................................................................. 58
Commands .............................................................................. 59
PWD22/52 Commands ........................................................ 59
HELP .............................................................................. 59
MES ................................................................................ 60
AMES ............................................................................. 60
Weather Related Commands .............................................. 60
WPAR ............................................................................. 61
WSET ............................................................................. 61