E-M-HF7-V1_24
Rotronic AG Bassersdorf, Switzerland
Document code
Unit
HygroFlex HF7 Humidity Temperature Transmitters: User Guide
Instruction Manual
Document Type
Page 2 of 23
Document title
© 2009-2011; Rotronic AG E-M-HF7-V1_24
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
Analog output signals ....................................................................................................................... 5
3.5
Display option ................................................................................................................................... 6
3.6
Service connector ............................................................................................................................. 6
3.7
Sensor protection (dust filter)............................................................................................................ 7
4
User configurable settings and functions ......................................................................................... 7
4.1
Function overview ............................................................................................................................. 7
4.2
Factory default settings .................................................................................................................... 8
5
Mechanical installation ....................................................................................................................... 9
5.1
General guidelines ............................................................................................................................ 9
5.2
Enclosure installation (HF7 type N and W) ..................................................................................... 10
5.3
Probe installation (HF7 type N, D and A) ........................................................................................ 10
6
Electrical installation ........................................................................................................................ 11
6.1
General wiring guidelines ............................................................................................................... 11
6.2
Cable grip and cable specifications ................................................................................................ 12
6.3
Wiring and terminal block diagrams ................................................................................................ 12
7
Operation ........................................................................................................................................... 16
7.1
Minimum load requirements for the HF73 with voltage outputs ...................................................... 16
7.2
HF72 and HF73 transmitters (analog outputs)................................................................................ 16
8
Maintenance....................................................................................................................................... 17
8.1
Service cable .................................................................................................................................. 17
8.2
Location of the service connector (mini USB type) ......................................................................... 17
8.3
Periodic calibration check ............................................................................................................... 18
8.4
Cleaning or replacing the dust filter ................................................................................................ 18
8.5
Validation of the output signals transmission .................................................................................. 18
9
Firmware updates .............................................................................................................................. 19
10
Technical data ................................................................................................................................... 20
10.1
Specifications ................................................................................................................................. 20
10.2
Dew point accuracy ........................................................................................................................ 22
11
Accessories ....................................................................................................................................... 23
12
Supporting documents ..................................................................................................................... 23
13
Document releases ........................................................................................................................... 23
