IN-E-HyLab-V4_11
Rotronic AG Bassersdorf, Switzerland
Document code
Unit
Instruction Manual
Document Type
HygroLab bench top indicator version 4: instruction manual
Document title
Page 2 of 51
© 2006; Rotronic AG IN-E-HyLab-V4_11
Table of contents
1
Overview ....................................................................................................................................3
2
General description ..................................................................................................................4
2.1
Power requirements................................................................................................................4
2.2
Probes and probe inputs.........................................................................................................4
2.3
Analog outputs (optional) ........................................................................................................6
2.4
Serial interface (HygroLab 2 and 3)........................................................................................7
2.5
Optional Ethernet (TCP/IP) interface (HygroLab 2 and 3)......................................................9
3
Optional configuration and communication software ........................................................10
4
How to configure the HygroLab ............................................................................................10
4.1
Internal service connector (HygroLab configuration)............................................................10
4.2
Baud rate compatibility requirements ...................................................................................11
4.3
Ethernet local area network ..................................................................................................11
4.4
RS-485 multi-drop network (HygroLab 2 and 3)...................................................................12
4.5
Selection of the probe supply voltage (main PCB) ...............................................................14
5
Operation .................................................................................................................................14
5.1
Unit system ...........................................................................................................................15
5.2
Display and keypad...............................................................................................................15
5.3
Probe Input Selection............................................................................................................16
6
Function menu ........................................................................................................................16
6.1
CALCULATE (HygroLab 2 and 3).........................................................................................17
6.2
MODE (HygroLab 3) .............................................................................................................18
6.3
DISPLAY (HygroLab 2 and 3)...............................................................................................21
6.4
ADJUST M.PT ......................................................................................................................21
6.5
ADJUST 1PT.........................................................................................................................23
6.6
ADJUST REF........................................................................................................................24
6.7
PROBE..................................................................................................................................25
6.8
SETTINGS ............................................................................................................................25
6.9
SYS STATUS........................................................................................................................26
7
Error and status messages....................................................................................................26
8
Connectors..............................................................................................................................27
9
Environmental limits ..............................................................................................................28
10
Maintenance of the ROTRONIC probes................................................................................29
11
Specifications..........................................................................................................................30
12
Practical advice for measuring humidity .............................................................................31
13
Probe calibration basics ........................................................................................................31
13.1
Temperature calibration ........................................................................................................31
13.2
Humidity calibration...............................................................................................................32
14
Humidity definitions ...............................................................................................................33
15
Dew point accuracy ................................................................................................................36
16
ASCII communications protocol ...........................................................................................37
17
Water activity measurement..................................................................................................40
17.1
Water activity: definition and applications.............................................................................40
17.2
Using the HygroLab 2 or 3 to measure water activity...........................................................42
17.3
Principle of measurement .....................................................................................................43
17.4
General recommendations....................................................................................................44
17.5
Using the AwE mode (HygroLab 3) ......................................................................................45
17.6
Using the AwQuick mode (HygroLab 3) ...............................................................................47
18
Accessories for the HygroLab...............................................................................................50
19
Document releases.................................................................................................................51
