ROTRONIC MP400H - Manual (Page 2)

E-M-HM-V1_10
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroMet MP Humidity Temperature
Meteorological Probe: User Guide Instruction Manual
Document Type
Page 2 of 19
Document title
© 2009; Rotronic AG E-M-HM-V1_10
Table of contents
1 Overview .............................................................................................................................................. 3
2 Mechanical configurations and dimensions ..................................................................................... 4
3 General description ............................................................................................................................. 5
3.1 Power supply .................................................................................................................................... 5
3.2 Measured parameters ...................................................................................................................... 5
3.3 Calculated parameters ..................................................................................................................... 5
3.4 Output signals ................................................................................................................................... 6
3.5 Analog output signal type ................................................................................................................. 6
3.6 Service connector ............................................................................................................................. 6
3.7 Probe ................................................................................................................................................ 6
4 User configurable settings and functions ......................................................................................... 6
4.1 Requirements for configuring the HygroMet MP ............................................................................... 7
4.2 Function overview ............................................................................................................................. 7
4.3 Factory default settings .................................................................................................................... 8
4.4 Interaction between the HygroMet MP and probe functions ............................................................. 9
5 Mechanical installation ..................................................................................................................... 10
5.1 General guidelines .......................................................................................................................... 10
6 Electrical installation ........................................................................................................................ 10
6.1 General wiring guidelines ............................................................................................................... 10
6.2 Guidelines for RS-485 wiring (HygroMet MP 3-wire) ...................................................................... 11
6.3 Wiring color code ............................................................................................................................ 11
6.4 Electrical diagram ........................................................................................................................... 12
7 Operation ........................................................................................................................................... 13
7.1 Analog outputs ................................................................................................................................ 13
7.2 RS-485 serial interface ................................................................................................................... 13
8 Maintenance....................................................................................................................................... 14
8.1 Service cable .................................................................................................................................. 14
8.2 Location of the service connector (mini USB type) ......................................................................... 14
8.3 Periodic calibration check of the HC2-S3 probe ............................................................................. 14
8.4 Cleaning or replacing the probe dust filter ...................................................................................... 15
8.5 Validation of the output signals transmission .................................................................................. 15
9 Firmware updates .............................................................................................................................. 15
10 Technical data ................................................................................................................................... 16
10.1 Specifications ................................................................................................................................. 16
10.2 Dew point accuracy ........................................................................................................................ 18
11 Accessories ....................................................................................................................................... 18
12 Supporting documents ..................................................................................................................... 18
13 Document releases ........................................................................................................................... 19