Vaisala HMT120 - Manual (Page 6)

User's Guide _______________________________________________________________________
4 ____________________________________________________________________ M211244EN-B
List of Figures
Figure 1 HMT120 Components .............................................................. 12
Figure 2 Opening the Transmitter Cover ................................................ 13
Figure 3 HMT120 Wall Mounting ............................................................ 14
Figure 4 HMT120 Installation with Rain Shield ....................................... 15
Figure 5 Installation of the Probe with Radiation Shield ......................... 16
Figure 6 Probe Installation with the Duct Installation Kit ........................ 17
Figure 7 Assembly of the Probe with Duct Installation Kit ...................... 18
Figure 8 Drilling Instructions ................................................................... 18
Figure 9 Optional Probe Mounting Flange .............................................. 19
Figure 10 Optional Probe Mounting Clamp .............................................. 20
Figure 11 HMT120 Component Board ...................................................... 21
Figure 12 Isolated Current-Loop Wiring .................................................... 22
Figure 13 PuTTY Terminal Application ..................................................... 25
Figure 14 Removing the Humidity Probe (Fixed Probe Model) ................ 48
Figure 15 Removing the Humidity Probe (Remote Probe Model) ............ 49
Figure 16 Adjustment Buttons .................................................................. 50
Figure 17 Location of the MI70 Probe and Cable Connector Ports .......... 54
Figure 18 Example of the MI70 Adjustment Menu ................................... 56
Figure 19 Example of the MI70 Adjustment Mode Graph Display............ 56
Figure 20 Location of the HMI41 Calibration Connector .......................... 59
Figure 21 HMT120 Output Current Measurement .................................... 65
Figure 22 Dimensions of the Fixed Probe Model in mm (inches) ............. 74
Figure 23 Dimensions of the Remote Probe Model in mm (inches) ......... 75
List of Tables
Table 1 Manual Revisions ....................................................................... 6
Table 2 Related Manuals ......................................................................... 6
Table 3 Wiring Table .............................................................................. 22
Table 4 Default Serial Interface Setting ................................................. 24
Table 5 Serial Port Commands ............................................................. 26
Table 6 Common Problems During Adjustment and Their Remedies .. 64
Table 7 Error Codes and Texts ............................................................. 67
Table 8 Troubleshooting Table .............................................................. 68
Table 9 Relative Humidity Measurement Specifications ....................... 71
Table 10 Temperature Measurement Specifications ............................... 71
Table 11 Operating Environment Specifications ..................................... 72
Table 12 Inputs and Outputs ................................................................... 72
Table 13 Mechanical Specifications ........................................................ 72
Table 14 Options and Accessories .......................................................... 73