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E-M-HF8-V2_10
Rotronic AG Bassersdorf, Switzerland
Document code
Unit
HygroFlex HF8 Humidity Temperature Transmitter: User Guide
Instruction Manual
Document Type
Page 2 of 35
Document title
© 2012; Rotronic AG E-M-HF8-V2_10
Table of contents
1
Overview .............................................................................................................................................. 3
2
Dimensional drawings ........................................................................................................................ 4
3
General description ............................................................................................................................. 4
3.1
Power supply options ....................................................................................................................... 4
3.2
Probe inputs ..................................................................................................................................... 5
3.3
Measured parameters ...................................................................................................................... 6
3.4
Calculated psychrometric parameters .............................................................................................. 6
3.5
Custom Calculations ......................................................................................................................... 6
3.6
Real time clock ................................................................................................................................. 7
3.7
Data logging function ........................................................................................................................ 7
3.8
Analog outputs, relay contacts and digital interface options ............................................................. 7
3.9
Optional display and keypad............................................................................................................. 8
3.10
Audible alarm (beeper) ..................................................................................................................... 9
3.11
Service connector ............................................................................................................................. 9
3.12
Protection grade of models with Ethernet interface .......................................................................... 9
3.13
HW4 Software compatibility ............................................................................................................ 10
4
User configurable settings and functions ....................................................................................... 10
4.1
Function overview (HF8 and HygroClip 2 probe) ............................................................................ 10
4.2
Interaction between the HF8 and HygroClip 2 probe functions ...................................................... 11
4.3
Configuration of the analog output signal type ............................................................................... 12
5
Mechanical installation ..................................................................................................................... 12
5.1
General guidelines .......................................................................................................................... 12
5.2
HF8 enclosure ................................................................................................................................ 13
5.3
Installation of the enclosure and probe ........................................................................................... 13
6
Electrical installation ........................................................................................................................ 14
6.1
General wiring guidelines ............................................................................................................... 14
6.2
Guidelines for RS-485 wiring .......................................................................................................... 15
6.3
Cable grip and cable specifications ................................................................................................ 15
6.4
Wiring ............................................................................................................................................. 15
7
Operation ........................................................................................................................................... 20
7.1
Analog outputs ................................................................................................................................ 20
7.2
Digital interface ............................................................................................................................... 20
7.3
Optional display and keypad........................................................................................................... 21
7.4
Frequently used settings ................................................................................................................ 25
7.5
Data logging function ...................................................................................................................... 26
7.6
Relay contacts ................................................................................................................................ 27
7.7
Audible alarm (beeper) ................................................................................................................... 27
8
Maintenance....................................................................................................................................... 27
8.1
Service cable .................................................................................................................................. 27
8.2
Location of the service connector (mini USB type) ......................................................................... 27
8.3
Periodic calibration check of the HygroClip 2 probe ....................................................................... 28
8.4
HF8 probe calibration and adjustment procedures ......................................................................... 28
8.5
Cleaning or replacing the probe dust filter ...................................................................................... 29
8.6
Validation of the output signals transmission .................................................................................. 30
9
Firmware updates .............................................................................................................................. 30
10
Technical data ................................................................................................................................... 31
10.1
Specifications ................................................................................................................................. 31
10.2
Dew point accuracy ........................................................................................................................ 34
11
Accessories ....................................................................................................................................... 34
12
Supporting documents ..................................................................................................................... 35
13
Document releases ........................................................................................................................... 35
