Vaisala PTU300 Guida Utente Pagina 9

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_________________________________________________________________________________
VAISALA _________________________________________________________________________ 7
Spare Parts and Accessories .............................................. 189
Dimensions (mm/inch) ......................................................... 191
PTU301 ............................................................................. 192
PTU303 ............................................................................. 194
PTU307 ............................................................................. 194
Temperature Probe ........................................................... 194
APPENDIX A
PROBE INSTALLATION KITS AND INSTALLATION EXAMPLES ......... 195
Duct installation kits (for PTU303/307) ............................... 195
Duct Installation Kit for Temperature Probe (for PTU307)196
Pressure Tight Swagelok Installation Kits (For PTU307) . 196
RH Probe Installation ........................................................ 196
Temperature Probe Installation ......................................... 198
Examples of Vapor Tight Installations with Cable Gland . 199
RH-Probe Installations (for PTU303/307) ......................... 199
T- Probe Installations (PTU307)........................................ 201
Meteorological Installation Kit (for PTU307)...................... 202
APPENDIX B
CALCULATION FORMULAS .................................................................... 203
APPENDIX C
MODBUS REFERENCE ............................................................................. 207
Function Codes .................................................................... 207
Register Map ......................................................................... 208
Data Encoding ................................................................... 208
32-Bit Floating Point Format ........................................ 208
16-Bit Integer Format ................................................... 209
Measurement Data (Read-Only) ....................................... 210
Status Registers (Read-Only) ........................................... 211
Configuration Registers ..................................................... 211
Exception Status Outputs ................................................... 212
Diagnostic Sub-Functions ................................................... 213
Device Identification Objects .............................................. 214
Exception Responses .......................................................... 214
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