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E-M-HF3-V1_22
Rotronic AG Bassersdorf, Switzerland
Document code
Unit
HygroFlex HF3 Transmitters and Thermo-hygrostats: User Guide
Instruction Manual
Document Type
Page 2 of 27
Document title
© 2009-2011; Rotronic AG E-M-HF3-V1_22
Table of contents
1
Overview ............................................................................................................................................... 3
2
Mechanical configurations and dimensions ..................................................................................... 4
2.1
Display option ..................................................................................................................................... 5
3
General description ............................................................................................................................. 5
3.1
Power supply ...................................................................................................................................... 5
3.2
Measured parameters ........................................................................................................................ 5
3.3
Calculated parameters ....................................................................................................................... 6
3.4
Analog output signals (HF32 and HF33) ............................................................................................ 6
3.5
Relay outputs (HF34) ......................................................................................................................... 6
3.6
Service connector ............................................................................................................................... 7
3.7
Sensor protection (dust filter) ............................................................................................................. 7
4
User configurable settings and functions ......................................................................................... 7
4.1
Function overview .............................................................................................................................. 7
4.2
Factory default settings ...................................................................................................................... 9
5
Mechanical installation ...................................................................................................................... 10
5.1
General guidelines ........................................................................................................................... 10
5.2
Type D
– through wall mount ........................................................................................................... 10
5.3
Type W
– surface mount .................................................................................................................. 10
5.4
Type R and S
– surface mount ......................................................................................................... 11
6
Electrical installation ......................................................................................................................... 12
6.1
General guidelines ........................................................................................................................... 12
6.2
Cable grip and cable specifications .................................................................................................. 13
6.3
Wiring ............................................................................................................................................... 13
7
Operation ............................................................................................................................................ 18
7.1
Minimum load requirements for the HF33 with voltage outputs ........................................................ 18
7.2
HF34 thermo-hygrostat .................................................................................................................... 19
8
Maintenance ....................................................................................................................................... 21
8.1
Service cable .................................................................................................................................... 21
8.2
Location of the service connector (mini-USB type)........................................................................... 21
8.3
Periodic calibration check ................................................................................................................. 22
8.4
Cleaning or replacing the dust filter (type D and W) ......................................................................... 22
9
Firmware updates .............................................................................................................................. 22
10
Technical data .................................................................................................................................... 23
10.1
Specifications ................................................................................................................................... 23
10.2
Dew point accuracy .......................................................................................................................... 26
11
Accessories ........................................................................................................................................ 27
12
Supporting documents ...................................................................................................................... 27
13
Document releases ............................................................................................................................ 27
