User guide

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VAISALA _________________________________________________________________________ 9
Figure 53
Network Interface Menu ........................................................... 84
Figure 54 IP Configuration Menu .............................................................. 84
Figure 55 Wireless LAN Settings .............................................................. 87
Figure 56 Entering Network SSID ............................................................ 87
Figure 57 Selecting the Wireless Network Type ...................................... 87
Figure 58 Web Configuration Interface for LAN ....................................... 90
Figure 59 Opening a Serial Connection ................................................... 91
Figure 60 Opening a Telnet Connection .................................................. 92
Figure 61 Device Information on Display ............................................... 108
Figure 62 Current/Voltage Switches of Output Modules ........................ 120
Figure 63 Measurement-Based Relay Output Modes ............................ 126
Figure 64 FAULT/ONLINE STATUS Relay Output Modes .................... 128
Figure 65 Relay Indicators on Display .................................................... 130
Figure 66 Decrease of Sensor Gain ....................................................... 133
Figure 67 Purge Buttons on Motherboard .............................................. 135
Figure 68 Chemical Purge Settings ........................................................ 135
Figure 69 Performing Chemical Purge ................................................... 136
Figure 70 Serial Interface Settings ......................................................... 143
Figure 71 IP Configuration ...................................................................... 145
Figure 72 Wireless LAN Settings ............................................................ 145
Figure 73 Communication Protocol ........................................................ 145
Figure 74 Modbus Counters ................................................................... 147
Figure 75 Changing the Sensor .............................................................. 150
Figure 76 Error Indicator and Error Message ......................................... 151
Figure 77 Adjustment and Purge Buttons .............................................. 156
Figure 78 Adjustment Menu ................................................................... 156
Figure 79 Selecting Point 1 Reference Type .......................................... 158
Figure 80 Accuracy over Temperature Range ....................................... 170
Figure 81 Accuracy in Dewpoint Measurement ...................................... 173
Figure 82 Transmitter Body Dimensions ................................................ 180
Figure 83 WLAN Antenna Dimensions ................................................... 181
Figure 84 HMT331 Fixed Probe Dimensions ......................................... 182
Figure 85 HMT331 Short Cable Probe Dimensions ............................... 182
Figure 86 HMT333 Probe Dimensions ................................................... 183
Figure 87 HMT334 Probe Dimensions ................................................... 183
Figure 88 HMT335 Probe Dimensions ................................................... 183
Figure 89 HMT337 Probe Dimensions ................................................... 184
Figure 90 HMT338 Probe Dimensions ................................................... 184
Figure 91 Optional Temperature Probe Dimensions .............................. 184
Figure 92 Duct Mounting Installation Kit ................................................. 185
Figure 93 Duct Mounting Installation Kit for T-Probe ............................. 186
Figure 94 Swagelok Installation Kit for RH-probe .................................. 187
Figure 95 Swagelok Installation Kit for T-Probe ..................................... 187
Figure 96 Cable Installation with Cable Gland ....................................... 188
Figure 97 Probe Installation with Cable Gland ....................................... 188
Figure 98 Vapor Tight Installation ........................................................... 189
Figure 99 Wall Mounting Installation ...................................................... 189
Figure 100 Climate Chamber Installation (not Available from Vaisala) .... 190
Figure 101 Example of Installation through Roof ..................................... 191
Figure 102 Installing the HMT338 Probe Through a Ball Valve
Assembly ................................................................................ 192
Figure 103 Meteorological Installation Kit for Outdoor Installation ........... 194