Vaisala PTU300 User's Guide Page 51
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Chapter 3 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 49
WARNING
Do not connect the mains power to relay unit without grounding the
transmitter.
RS-422/485 Interface
0503-029
Figure 26 RS-485 Module
Numbers refer to Figure 26 above:
1 = Flat cable pins
2 = Selection switches
3 = Screw terminals for wiring
Installation and Wiring
1. Disconnect the power. In case the RS-485-module is installed in
the factory, continue with the item 4.
2. To attach the module, open the transmitter cover and fasten the
RS-485 module to the bottom of the housing with four screws.
3. Connect the flat cable between the RS-485 module and the
motherboard's pins MODULE1 (Communications).
4. Pull the network wirings through the cable gland.
5. Connect the twisted pair wires (1 or 2 pairs) to the screw
terminals as presented in Table 7 on page 50:
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 5 6
- CHAPTER 6 6
- List of Figures 8
- List of Tables 9
- GENERAL INFORMATION 11
- Feedback 12
- ESD Protection 12
- Recycling 13
- Regulatory Compliances 13
- Trademarks 13
- License Agreement 13
- Warranty 14
- PRODUCT OVERVIEW 15
- Basic Features and Options 16
- Pressure Measurement 17
- 0601-008 18
- Probe Options 20
- Warmed Probe PTU307 21
- INSTALLATION 23
- Standard Mounting without 24
- Mounting Plate 24
- 0503-004 25
- 0503-040 25
- Kit for Pole or Pipeline 27
- 0503-041 28
- 0509-151 28
- Cable Bushings 30
- Grounding the Cables 31
- Alternate Wiring Systems 33
- WARNING 34
- 8-Pin Connector 35
- D-9 Connector 36
- CAUTION 37
- Probe Mounting 38
- 0507-024 39
- 0507-022 40
- Temperature Probe (Optional) 42
- Power Supply Module 43
- Installation 44
- Warnings 44
- 0506-030 47
- Relays 49
- RS-422/485 Interface 51
- 1 (not connected) RxB 52
- 2 (not connected) RxA 52
- 4 B TxB 52
- 5 A TxA 52
- OPERATION 55
- Basic Display 56
- Reading 57
- 0604-055 58
- Graphic History 60
- Information Display 61
- Menus and Navigation 62
- Language Setting 63
- Rounding Setting 63
- Display Backlight Setting 63
- Display Contrast Setting 64
- Keypad Lock (Keyguard) 64
- Menu PIN Lock 64
- Factory Settings 65
- Serial Line Communication 66
- User Port Connection 66
- Service Port Connection 67
- Terminal Program Settings 68
- 0601-029 69
- 0601-030 69
- List of Serial Commands 70
- Getting Measurement Message 73
- Setting time and date 75
- General Settings 75
- NMEA Data Format 79
- GPS Commands 81
- User Port Serial Settings 85
- Pressure Average Calculation 88
- Device Information 89
- Serial Line 92
- Locking Menu/Keypad by Using 92
- Data Recording 93
- Selecting Data Recording 93
- Quantities 93
- View Recorded Data 94
- Deleting the Recorded Files 96
- Analog Output Settings 96
- 0503-045 97
- AMODE/ASEL 99
- Analog Output Tests 100
- Setting 101
- Operation of Relays 102
- Quantity For Relay Output 102
- Hysteresis 103
- Enabling/Disabling Relays 105
- Setting Relay Outputs 106
- Testing Operation Of Relays 108
- Operation of RS-485 Module 109
- Networking Commands 110
- Sensor Functions 113
- Chemical Purge (Optional) 113
- Manual Chemical Purge 114
- Chemical Purge in Power Up 115
- Using Buttons On Motherboard 115
- Using Serial Line 116
- Setting Sensor Heating 117
- MAINTENANCE 121
- Changing the Sensor 122
- Error States 123
- Table 18 Error Messages 124
- CALIBRATION AND ADJUSTMENT 127
- 0508-013 128
- Relative Humidity Adjustment 132
- Using Push-Buttons 132
- Using Display/Keypad 133
- Temperature Adjustment 137
- TECHNICAL DATA 143
- Relative Humidity 144
- Optional Temperature Probe 145
- Calculated Variables 146
- 1013 mbar) 147
- Dewpoint Temperature (PTU307 148
- Warmed Probe Option) 148
- Inputs and Outputs 149
- Mechanics 149
- Technical Specifications of 150
- Optional Modules 150
- Relay Module 151
- RS-485 Module 151
- Options and Accessories 151
- Item code 152
- Dimensions (in mm and inch) 153
- 12 (0.47) 154
- 120 (4.72) 154
- Temperature Probe 155
- Technical Support 155
- Return Instructions 156
- Vaisala Service Centers 157
- PROBE INSTALLATION KITS AND 159
- INSTALLATION EXAMPLES 159
- PTU307) 160
- RH Probe Installation 161
- 0508-016 162
- 0508-018 164
- 0508-015 164
- 0507-015 167
- 0601-044 168
- CALCULATION FORMULAS 169
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