Vaisala PTU300 Podręcznik Użytkownika Strona 131
- Strona / 186
- Spis treści
- BOOKMARKI
Oceniono. / 5. Na podstawie oceny klientów
Chapter 4 ________________________________________________________________ Operation
VAISALA ______________________________________________________________________ 129
OPEN
When all transmitters on the RS-485 bus are in POLL mode the OPEN
command sets one transmitter temporarily to STOP mode so that other
commands can be entered.
OPEN [aa]
where
aa = address of the transmitter (0 ... 99)
CLOSE
The CLOSE command switches the transmitter back to the POLL mode.
Example:
>OPEN 2 (opens the line to transmitter 2, other
transmitters stay in POLL mode)
>CRH (for example, calibration performed)
...
>CLOSE (line closed)
Sensor Functions
Chemical Purge (Optional)
In some specific applications the sensor gain may decrease gradually due
to an interference caused by a particular chemical present in the
measured gas, for example. The decrease of sensor gain due to an
interfering chemical and the effect of the chemical purge process are
illustrated below, see Figure 62 on page 130. The sensor polymer absorbs
the interf
ering chemical; and this reduces the ability of the polymer to
absorb water molecules and consequently the sensor gain decreases. In
chemical purge, heating the humidity sensor to a temperature level of
approximately +160 °C for several minutes evaporates the interfering
chemical.
The purge function starts with heating stage, continues with settling and
when the temperature of the sensor is decreased the transmitter returns to
normal mode. The whole cycle takes about 6 minutes.
NOTE
Chemical purge function locks the output values for about 6 minutes.
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 4 4
- CHAPTER 5 7
- CHAPTER 6 7
- CHAPTER 7 8
- APPENDIX A 8
- APPENDIX B 9
- List of Figures 10
- List of Tables 12
- GENERAL INFORMATION 13
- Feedback 14
- ESD Protection 15
- Recycling 15
- Regulatory Compliances 16
- Patent Notice 18
- Trademarks 18
- License Agreement 18
- Warranty 18
- PRODUCT OVERVIEW 19
- Pressure Measurement 20
- Structure of the Transmitter 22
- 0604-060 23
- 0911-067 25
- INSTALLATION 27
- 0503-004 28
- 0804-065 28
- 0503-002 30
- 0503-041 32
- 0509-151 32
- 0704-002 34
- 0804-083 34
- Grounding the Cables 36
- Alternate Wiring Systems 37
- WARNING 38
- 8-Pin Connector 39
- D-9 Connector 40
- CAUTION 41
- Probe Mounting 42
- 0507-024 43
- 0507-022 43
- Temperature Probe (Optional) 45
- Optional Modules 46
- Installation 47
- Warnings 48
- Third Analog Output 51
- Installation and Wiring 52
- RS-422/485 Interface 55
- Figure 33 4-Wire RS-485 Bus 57
- LAN Interface 58
- WLAN Interface 59
- Data Logger Module 60
- 0706-068 62
- Reading 64
- 0604-055 65
- Graphic History 67
- Information Display 68
- Menus and Navigation 69
- Changing the Language 70
- Rounding Setting 71
- Display Backlight Setting 71
- Display Contrast Setting 71
- Keypad Lock (Keyguard) 71
- Menu PIN Lock 72
- Factory Settings 72
- Display Alarms 73
- 0802-069 74
- 0802-070 74
- User Port Connection 76
- Service Port Connection 77
- Using the Service Port 78
- LAN Communication 79
- Wireless LAN Configuration 83
- Telnet Settings 85
- 0802-114 86
- 0810-071 88
- Serial Line 91
- Outputting Reading Once 92
- General Settings 94
- Date and Time 97
- N_#r #n 99
- GPS Commands 100
- Using Display/Keypad 101
- Using Serial Line 102
- User Port Serial Settings 104
- Pressure Average Calculation 107
- Device Information 108
- Data Recording 111
- View Recorded Data 112
- Analog Output Settings 115
- 0503-045 116
- AMODE/ASEL 118
- Analog Output Tests 119
- Operation of Relays 121
- Hysteresis 122
- 0610-077 123
- Testing Operation Of Relays 126
- Networking Commands 128
- Sensor Functions 131
- Manual Chemical Purge 132
- Chemical Purge in Power Up 133
- Using Buttons On Motherboard 133
- Setting Sensor Heating 135
- Display/Keypad 136
- MAINTENANCE 137
- Changing the Sensor 138
- Error States 139
- Table 33 Error Messages 140
- Technical Support 141
- Return Instructions 141
- Vaisala Service Centers 142
- CALIBRATION AND ADJUSTMENT 143
- 0508-013 144
- Relative Humidity Adjustment 148
- Temperature Adjustment 152
- TECHNICAL DATA 157
- Relative Humidity 158
- Optional Temperature Probe 159
- Calculated Variables 160
- 1013 mbar) 161
- Probe Option) 162
- Inputs and Outputs 163
- Mechanics 163
- Modules 164
- Relay Module 165
- RS-485 Module 165
- LAN Interface Module 165
- WLAN Interface Module 165
- Options and Accessories 166
- Dimensions (mm/inch) 168
- 0804-033 169
- 12 (0.47) 170
- 120 (4.72) 170
- Temperature Probe 171
- PROBE INSTALLATION KITS AND 173
- INSTALLATION EXAMPLES 173
- PTU307) 174
- 0508-016 176
- 0508-018 178
- 0508-015 178
- 0601-044 180
- 99.621 182
Powiązane produkty i podręczniki dla Pomiary, testowanie i kontrola Vaisala PTU300
(84 strony)© 2020, manymanuals.pl. Wszelkie prawa zastrzeżone. | 0.049 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji