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E-M-HF4-V1_22
Rotronic AG Bassersdorf, Switzerland
Document code
Unit
HygroFlex HF4 Humidity Temperature Transmitters: User Guide
Instruction Manual
Document Type
Page 2 of 29
Document title
© 2009-2011; Rotronic AG E-M-HF4-V1_22
Table of contents
1
Overview .............................................................................................................................................. 3
2
Mechanical configurations and dimensions ..................................................................................... 4
2.1
Display and keypad 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 (HF42 and HF43) .......................................................................................... 6
3.5
Digital interface (HF45) ..................................................................................................................... 7
3.6
Service connector ............................................................................................................................. 8
3.7
Sensor protection (dust filter)............................................................................................................ 8
4
User configurable settings and functions ......................................................................................... 8
4.1
Function overview ............................................................................................................................. 9
4.2
Factory default settings .................................................................................................................. 10
5
Mechanical installation ..................................................................................................................... 12
5.1
General guidelines .......................................................................................................................... 12
5.2
HF4 enclosure ................................................................................................................................ 12
5.3
Installation of the HF4 type D (through wall mount) ........................................................................ 12
5.4
Installation of the HF4 type W (surface mount)............................................................................... 13
6
Electrical installation ........................................................................................................................ 14
6.1
General wiring guidelines ............................................................................................................... 14
6.2
Guidelines for RS-485 wiring (HF45) .............................................................................................. 15
6.3
Cable grip and cable specifications ................................................................................................ 15
6.4
Wiring ............................................................................................................................................. 15
7
Operation ........................................................................................................................................... 19
7.1
Minimum load requirements for the HF43 with voltage outputs ...................................................... 19
7.2
HF42 and HF43 transmitters (analog outputs)................................................................................ 19
7.3
HF45 (digital output) ....................................................................................................................... 20
7.4
Internal menu (optional keypad and display) .................................................................................. 21
7.5
Displayed parameters (optional keypad and display) ..................................................................... 21
8
Maintenance....................................................................................................................................... 22
8.1
Service cable .................................................................................................................................. 22
8.2
Location of the service connector (mini USB type) ......................................................................... 22
8.3
Periodic calibration check ............................................................................................................... 22
8.4
Cleaning or replacing the dust filter ................................................................................................ 23
8.5
Validation of the output signals transmission .................................................................................. 23
9
Firmware updates .............................................................................................................................. 24
10
Technical data ................................................................................................................................... 25
10.1
Specifications ................................................................................................................................. 25
10.2
Dew point accuracy ........................................................................................................................ 27
11
Accessories ....................................................................................................................................... 28
12
Supporting documents ..................................................................................................................... 28
13
Document releases ........................................................................................................................... 29
