Vaisala HUMICAP HMT330 SERIES Guía de usuario Pagina 40
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User's Guide ______________________________________________________________________
40 __________________________________________________________________ M210566EN-H
Probe Mounting
In humidity measurement and especially in calibration it is essential that
temperature of the probe and measuring environment is the same. Even a
small difference in temperature between the environment and the probe
causes an error. As the curve below shows, if the temperature is +20 °C
and the relative humidity 100 %RH, a difference of ±1 °C between the
environment and the probe causes an error of ±6 %RH.
The graph below illustrates the measurement error at 100 %RH when the
difference between the ambient and sensor temperature is 1 °C.
0507-023
Figure 22 Measurement Error at 100 %RH
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 5 6
- CHAPTER 6 7
- CHAPTER 7 7
- APPENDIX A 8
- APPENDIX B 8
- List of Figures 9
- GENERAL INFORMATION 13
- Version Information 14
- Feedback 15
- ESD Protection 15
- Recycling 16
- Regulatory Compliances 16
- Patent Notice 18
- Trademarks 18
- License Agreement 18
- Warranty 18
- PRODUCT OVERVIEW 19
- Basic Features and Options 20
- Structure of the Transmitter 21
- 0508-010 22
- 0911-066 24
- INSTALLATION 27
- 0503-004 28
- 0804-065 28
- Pole or Pipeline 30
- 0503-007 31
- 0503-041 31
- Panel Mounting Frame 33
- Cable Bushings 34
- Grounding the Cables 35
- WARNING 37
- CAUTION 38
- 0703-041 39
- Probe Mounting 40
- 0507-024 41
- Applications 43
- 0506-029 44
- 0503-034 44
- Temperature Probe (Optional) 46
- 0507-025 47
- 0508-077 47
- Optional Modules 49
- Installation 50
- Warnings 50
- Third Analog Output 53
- Installation and Wiring 54
- RS-422/485 Interface 57
- 1 (not connected) RxB 58
- 2 (not connected) RxA 58
- 4 B TxB 58
- 5 A TxA 58
- LAN Interface 59
- WLAN Interface 60
- Attaching the WLAN Antenna 61
- Data Logger Module 62
- 0706-068 63
- OPERATION 65
- Graphic History 66
- 0706-030 67
- Changing the Language 69
- Rounding Setting 69
- Display Backlight Setting 69
- Display Contrast Setting 70
- Keypad Lock (Key guard) 70
- Menu PIN Lock 70
- Display Alarms 71
- Configuring a Display Alarm 72
- Serial Line Communication 73
- RS-232 10…36 V= 74
- Service Port Connection 75
- Using the Service Port 76
- LAN Communication 77
- Wireless LAN Configuration 80
- 0802-111 81
- 0802-110 81
- 0802-112 81
- Telnet Settings 83
- Terminal Program Settings 84
- 0810-070 85
- List of Serial Commands 87
- Serial Line 89
- Outputting Reading Once 90
- FTIME and FDATE 91
- General Settings 92
- Example: 94
- Date and Time 97
- User Port Serial Settings 98
- Data Filtering 101
- Device Information 101
- 0706-002 102
- Data Recording 104
- View Recorded Data 105
- Analog Output Settings 108
- 0503-045 109
- Analog Output Quantities 110
- AMODE/ASEL 111
- Analog Output Tests 112
- Operation of Relays 114
- Hysteresis 115
- Enabling/Disabling Relays 116
- Setting Relay Outputs 117
- Testing Operation of Relays 119
- Networking Commands 120
- Sensor Functions 124
- Manual Chemical Purge 125
- Chemical Purge in Power Up 125
- Using Buttons on Motherboard 126
- Using Serial Line 127
- Sensor Heating 128
- MAINTENANCE 131
- Changing the Sensor 132
- Error States 133
- Table 29 Error Messages 134
- Technical Support 135
- Return Instructions 135
- Vaisala Service Centers 136
- CALIBRATION AND ADJUSTMENT 137
- 0508-013 138
- 0706-007 138
- Using Display/Keypad 140
- Temperature Adjustment 143
- Analog Output Adjustment 145
- TECHNICAL DATA 147
- Optional Temperature Probe 148
- Calculated Variables 149
- 1013 mbar) 149
- Probe Option) 151
- Operating Environment 151
- Inputs and Outputs 152
- Mechanics 152
- Modules 153
- Relay Module 154
- RS-485 Module 154
- LAN Interface Module 154
- WLAN Interface Module 154
- Options and Accessories 155
- Dimensions (mm/inch) 157
- 0804-035 158
- 0804-060 160
- 0804-059 160
- Temperature Probe 162
- PROBE INSTALLATION KITS AND 163
- INSTALLATION EXAMPLES 163
- HMT337) 164
- Cable Gland 166
- 0508-015 167
- 0508-022 167
- 0507-015 169
- 0507-043 170
- 0804-063 172
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