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Vaisala DMT152 User Manual

Page 4

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User's Guide _______________________________________________________________________

2 ____________________________________________________________________ M210865EN-F

CHAPTER 5

SERIAL LINE OPERATION ......................................................................... 31

Serial Communication ............................................................ 31

Connecting to the Serial Interface ....................................... 31

Installing the Driver for the USB Cable .......................... 31

Terminal Application Settings .............................................. 32

List of Serial Commands ....................................................... 34

Device Information and Status .............................................. 35

Show Device Information..................................................... 35

Show Transmitter Status ..................................................... 36

Show Firmware Version ...................................................... 36

Configuring Analog Outputs ................................................. 37

Limit Alarm ........................................................................... 39

Purge Status Alarm ............................................................. 40

Malfunction Alarm ................................................................ 41

Select Analog Output Quantity and Scaling ........................ 41

Configuring Serial Line Operation ........................................ 42

Set Serial Line Settings ....................................................... 42

Set Serial Line Response Time ........................................... 42

Set Transmitter Address ...................................................... 43

Format the Measurement Output ........................................ 43

Select Unit ........................................................................... 44

Set Serial Interface Mode .................................................... 45

Configuring Measurement Parameters ................................ 46

Enable or Disable Sensor Purge ......................................... 46

Set Pressure Value for ppm Calculation ............................. 46

Set Molar Mass for ppmw Calculation ................................. 48

Serial Line Output Commands .............................................. 49

Start Measurement Output .................................................. 49

Stop Measurement Output .................................................. 49

Set Output Interval ............................................................... 49

Output a Reading Once ....................................................... 50

Troubleshooting and Maintenance Commands .................. 50

Display the Currently Active Errors ..................................... 50

Test Analog Outputs ............................................................ 51

Calibrate Analog Output ...................................................... 52

Extend Analog Output Range .............................................. 52

Other Commands.................................................................... 53

Opening the Transmitter in POLL Mode.............................. 53

Closing the Connection to a Transmitter in POLL Mode ..... 53

Display Command List......................................................... 53

Set Time .............................................................................. 53

Reset Transmitter ................................................................ 54

Set LED Voltage .................................................................. 54

Restore Factory Settings ..................................................... 54

CHAPTER 6

MAINTENANCE ............................................................................................ 55

Cleaning the Transmitter ....................................................... 55

Changing the Filter ................................................................. 55

Calibration and Adjustment ................................................... 56

Field Check Using DM70 ..................................................... 57