4. Installation....................................................................................................... 22
4.1 Configuring Transmitter Before Installation................................................22
4.2 Selecting the Location................................................................................... 22
4.3 Installing the Transmitter...............................................................................23
4.4 Wiring.............................................................................................................. 24
4.4.1 Power Supply Requirements................................................................. 25
4.5 Sampling from a Process............................................................................... 27
4.6 Sampling Accessories.................................................................................... 28
4.6.1 DMT242SC Sampling Cell.......................................................................28
4.6.2 DMT242SC2 Sampling Cell with Swagelok Connectors..................... 28
4.6.3 DSC74 Sampling Cell with Quick Connector and Leak Screw........... 29
4.6.4 DSC74B Two-Pressure Sampling Cell...................................................30
5. Operation.........................................................................................................36
5.1 Transmitter Start-up.......................................................................................36
5.2 Vaisala Insight Software................................................................................ 36
5.2.1 Connecting to Insight Software.............................................................37
5.3 Operation with DM70 Handheld Dew Point Meter.....................................38
6. Modbus Communication........................................................................... 40
7. Serial Communication................................................................................. 41
7.1 Connecting to the Serial Interface.................................................................41
7.2 Terminal Application Settings........................................................................41
7.3 Accessing Serial Interface in Devices with Modbus Output......................42
7.4 List of Serial Commands................................................................................43
7.5 Device Information.........................................................................................44
7.5.1 Show Device Information.......................................................................44
7.5.2 Show Analog Output Mode................................................................... 45
7.5.3 Show Firmware Version..........................................................................45
7.5.4 Show Firmware Information.................................................................. 45
7.5.5 Show Currently Active Errors................................................................ 46
7.5.6 Show Serial Number...............................................................................46
7.5.7 Show Command List...............................................................................46
7.6 Configuring Analog Output...........................................................................47
7.6.1 Set Analog Output Parameters and Scaling........................................ 47
7.6.2 Set Analog Output Error Notification...................................................48
7.6.3 Extend Analog Output Range............................................................... 49
7.6.4 Test Analog Output.................................................................................49
7.6.5 Enable or Disable Analog Output......................................................... 50
DMT143 User Guide M211435EN-J
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