Operating Manual
ARS31(Pro)-UMB
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
18
6 Configuration
Lufft provides PC software for configuration purposes UMB-Config Tool. Using this
software, the user can adjust the sensor according to his needs.
Starting from Firmware V10.3 the UMB-Config Tool version 2.2 or
newer must be used.
6.1 Factory settings
The factory settings of the ARS31PRO-UMB are as follows:
Device ID:
1
Class ID
4
Baud rate:
19200
RS485 protocol:
binary
6.2 Using PC configuration software
The main functions of the configuration software are described in detail in the Online Help.
For this reason only the sensor-specific menus and functions are described here.
6.2.1 Configuration of ARS31Pro-UMB
After loading an ARS31PRO-UMB configuration, all relevant settings and values can be
adjusted.
If several ARS31PRO-UMB devices are operated on a UMB network, the ID must be
changed before connection to the network, as each device requires a unique ID. IDs are
allocated in ascending order, beginning with number one.
The measuring rate indicates how often a new measuring cycle is started. This value is
configurable and can be set to 20, 30 or 60 minutes (factory settings: 20 min.)
If there is no freezing temperature / salt concentration detected in a measuring cycle the
last identified freezing temperature will be delivered for the following 40 minutes (default:
40
– interval can be adjusted). During this interval the freezing temperature can only move
to 0 if the sensor definitely detects clear water on the road. The interval for maintaining the
freezing temperature can be configured in the UMB-Config-Tool and can adopt values
between 20 and 120 minutes (default 40 minutes). The function can be deactivated by
untick
ing the option “FT data hold active”.
With the option "FT smoothing operator active", a smoothing function for the freezing
temperature can be activated. The operator itself can be set between 0 (maximum
smoothing, no change in the FT) and 100 (no smoothing). After activating this function a
start value of 40 is set for the smoothing operator. This value can be adjusted if necessary.
Freezing temperature / threat of icing is detected when road temperatures are lower than
the road temperature threshold. If the road temperature is higher than this threshold,
freezing temperature / threat of icing is not detected. The threshold value is adjustable
between 2°C and 10°C.
The dry threshold defines the measured value on the ARS31PRO-UMB from which a dry
road is assumed and the freezing temperature is no longer measured; instead of the
freezing point measurement, detection of threat of icing then takes place. In the factory
