Vaisala DMT340 User Manual Page 168
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User's Guide _______________________________________________________________________
166 __________________________________________________________________ M210704EN-G
ppmv (dry)
Measurement range (typical) 10 ... 2500 ppm
Accuracy (at + 20 °C, 1 bar) 1 ppm + 20% of reading
Other measurement parameters available (depends on model)
mixing ratio, absolute humidity, pressure dewpoint calculated to 1 bar,
temperature difference (T-Td), water vapor pressure
Operating Environment
Mechanical durability up to +180 °C (+356 °F)
for transmitter body -40 ... +60 °C (-40 ... +140 °F)
with display 0 ... +60 °C (32 ... +140 °F)
Storage temperature range
without display -55 … +80 °C (-67 … +176 °F)
with display -40 … +80 °C (-40 … +176 °F)
Pressure and temperature range for probes see probe specifications
Measured gases non corrosive
Electromagnetic compatibility EN61326-1: Electrical
equipment for measurement,
control, and laboratory use –
EMC requirements – for use in
industrial locations
Inputs and Outputs
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC 50/60 Hz
Default start-up time after sensor Purge and Autocal About 6 min
Start-up time after power-up 3 s
Power consumption at 20 °C (Uin 24VDC)
RS-232 max 25 mA
Uout 2 x 0 ... 1V / 0 ... 5V / 0 ... 10V max 25 mA
Iout 2 x 0 ... 20 mA max 60 mA
display and backlight + 20 mA
during sensor purge + 110 mA max
Analog outputs (2 standard, 3rd optional)
current output 0 ... 20 mA, 4 ... 20 mA
voltage output 0 ... 1 V, 0 ... 5 V, 0 ... 10 V
Accuracy of analog outputs at 20 °C ± 0.05 % full scale
Temperature dependence of the analog outputs ± 0.005 %/°C full scale
External loads
current ouputs RL < 500 ohm
0 ... 1V output RL > 2 kohm
0 ... 5V and 0 ... 10V outputs RL > 10 kohm
Wire size 0.5 ... 2.5 mm
2
(AWG 20 ... 14)
stranded wires recommended
Digital outputs RS-232
RS-422/485 (optional)
LAN (optional)
WLAN (optional)
Protocols ASCII commands
Modbus RTU
Modbus TCP
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 4 4
- CHAPTER 6 7
- CHAPTER 7 7
- CHAPTER 8 7
- APPENDIX A 8
- APPENDIX B 8
- List of Figures 9
- List of Tables 11
- GENERAL INFORMATION 13
- Version Information 14
- Documentation Conventions 14
- Recycling 15
- Regulatory Compliances 16
- Patent Notice 17
- Trademarks 17
- Software License 17
- Warranty 18
- PRODUCT OVERVIEW 19
- Basic Features and Options 21
- Structure of the Transmitter 22
- 0604-006 23
- Probe Options 24
- INSTALLATION 25
- 133 (5.24) 26
- 59 (2.32) 26
- Thickness 26
- 9.5 (0.37) 26
- 0503-041 27
- 0509-151 27
- 0503-002 28
- Pole or Pipeline 29
- Installation Kit 30
- Panel Mounting Frame 30
- 0704-002 31
- 0804-083 31
- Cable Bushings 32
- Grounding the Cables 33
- WARNING 34
- CAUTION 36
- Probe Mounting 37
- 0506-029 39
- 0503-034 39
- 0503-033 40
- 0503-042 41
- 0503-021 41
- 0503-020 43
- 0503-005 43
- Tightening the Clasp Nut 44
- 0507-043 46
- Leak Screw Installation 48
- Process 49
- 0706-001 50
- Sampling Cell for DMT348 51
- 0503-022 52
- Optional Modules 53
- Installation 54
- Warnings 55
- Third Analog Output 58
- Installation and Wiring 59
- Alarm Relays 60
- RS-422/485 Interface 62
- Figure 42 4-Wire RS-485 Bus 64
- 1102-027 65
- LAN Interface 66
- WLAN Interface 67
- 0706-068 69
- 8-Pin Connector 70
- OPERATION 71
- Graphic History 73
- 0706-030 74
- Menus and Navigation 75
- Changing the Language 76
- Rounding Setting 76
- Display Backlight Setting 76
- Display Contrast Setting 77
- Keypad Lock (Keyguard) 77
- Factory Settings 78
- Display Alarms 79
- Configuring a Display Alarm 80
- Table 12 ALSEL Parameters 82
- Serial Line Communication 84
- User Port Connection 85
- Service Port Connection 86
- LAN Communication 87
- IP Configuration 88
- Wireless LAN Configuration 91
- Communication Protocol 94
- Terminal Program Settings 95
- 0810-070 96
- 0810-071 97
- List of Serial Commands 98
- Table 25 Other Commands 100
- Serial Line 101
- Outputting Reading Once 102
- FTIME and FDATE 104
- General Settings 105
- Using Serial Line 106
- Using Display/Keypad 108
- Date and Time 110
- Data Filtering 111
- >filt ext 112
- Filter : EXT 112
- Device Information 113
- >vers 116
- DMT340 / 5.10 116
- Serial Output Settings 117
- Data Recording 121
- View Recorded Data 122
- Deleting the Recorded Files 124
- Analog Output Settings 125
- Analog Output Quantities 126
- AMODE/ASEL 127
- Analog Output Tests 128
- Operation of Relays 130
- 1102-007 131
- Hysteresis 132
- 1102-040 133
- Setting the Relay Outputs 135
- Sensor Functions 138
- Sensor Purge 139
- 1103-067 140
- 1103-066 140
- Sensor Warming 142
- CHAPTER 5 143
- Taking Modbus into Use 144
- Enabling Serial Modbus 145
- Enabling Ethernet Modbus 146
- 1101-034 147
- 1101-036 147
- Diagnostic Modbus Counters 149
- Disabling Modbus 150
- MAINTENANCE 151
- Error States 152
- Table 32 Error Messages 153
- Technical Support 154
- Product Returns 154
- CALIBRATION AND ADJUSTMENT 155
- Adjustment Information 157
- Adjusting Dewpoint T 158
- 0706-020 159
- 0706-021 159
- 0706-022 159
- 0706-023 159
- Display/Keypad 160
- 0706-024 161
- 0706-025 161
- 0706-026 161
- Adjusting Temperature 163
- Adjusting Analog Outputs 165
- Accuracy ± 3°C Td 167
- or better 167
- Water vapor saturation line 167
- Not recommended area for 167
- Operating Environment 168
- Inputs and Outputs 168
- Mechanics 169
- Probe Specifications 169
- Modules 170
- RS-485 Module 171
- LAN Interface Module 171
- WLAN Interface Module 171
- Data Logger Module 171
- Spare Parts and Accessories 172
- Dimensions (mm/inch) 174
- 92 (3.62) 175
- 116 (4.57) 175
- 183 (7.20) 175
- 0503-044 176
- 0804-059 176
- 0804-129 177
- 0704-054 177
- 0704-056 178
- 0704-055 178
- CALCULATION FORMULAS 179
- 5.2)00189.001.1()15.273( 180
- MODBUS REFERENCE 183
- Register Map 184
- 16-Bit Integer Format 185
- Measurement Data (Read-Only) 186
- Status Registers (Read-Only) 187
- Configuration Registers 187
- Exception Status Outputs 188
- Diagnostic Sub-Functions 189
- Exception Responses 190
- *M210704EN* 191
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