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Vaisala DMT132 User Manual

Page 4

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USER'S GUIDE____________________________________________________________________

2 ___________________________________________________________________ M211289EN-A

CHAPTER 4

OPERATION .................................................................................................33

Getting Started........................................................................33

Serial Communication............................................................33

Connecting to the Serial Interface .......................................33

Installing the Driver for the USB Service Cable .............33

Terminal Application Settings..............................................34

List of Serial Commands .......................................................36

Device Information and Status..............................................37

Show Device Information ....................................................37

Show Available Quantities...................................................37

Show Firmware Version ......................................................37

Show Software Information .................................................38

Configuring Analog Output ...................................................38

Set Analog Output Quantity and Scaling.............................38

Set Analog Output Error Notification ...................................39

Configuring Measurement Parameters ................................40

Set Pressure Value for Dewpoint Calculation .....................40

Serial Line Output Commands ..............................................41

Output a Reading Once.......................................................41

Troubleshooting and Maintenance Commands ..................41

Display Currently Active Errors ...........................................41

Test Analog Output..............................................................42

Set LED Indicator Level.......................................................42

Calibration and Adjustment Commands ..............................43

Calibrate Humidity Measurement ........................................43

Calibrate Temperature Measurement .................................44

Adjust Capacitance Measurement ......................................45

View User Adjustment Parameters .....................................46

Set User Adjustment Parameters........................................46

Other Commands ...................................................................47

Display Command List ........................................................47

Reset Transmitter ................................................................47

Restore Factory Settings .....................................................48

CHAPTER 5

MAINTENANCE............................................................................................49

Cleaning the Transmitter .......................................................49

Changing the Filter .................................................................49

Changing the Sensor .............................................................51

Calibration and Adjustment...................................................52

Field Check Using DM70.....................................................53

Humidity Calibration and Adjustment (RHCAL) ..................55

Temperature Calibration and Adjustment (CT) ...................58

Capacitance Adjustment (CRH) ..........................................60

CHAPTER 6

TROUBLESHOOTING..................................................................................63

Typical Problems ....................................................................63

Error State ...............................................................................64

Error Codes .............................................................................65