Related Manuals for Lufft ARS31-UMB
Summary of Contents for Lufft ARS31-UMB
- Page 1 Operating Manual ARS31-UMB Active Road Sensor Order No.: 8610 U050 50m cable Version V5 (10/2012) www.lufft.com...
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Page 2: Table Of Contents
Adaption to actual firmware, explanation ”saline concentration” 16.12.2010 BR/FS 14.06.2011 BR/LA Adaption to actual firmware, smoothing operator for FT 30.08.2011 BR/LA Channel assignment, availability of measurement values 08.10.2012 LA/BR/FS Adaption to actual device version and actual standards G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 3: Please Read Before Commissioning
It may not function It may be permanently damaged There may be a possibility of an electrical shock 1.6 Nomenclature Tg: Freezing temperature that the sensor identified Tu: Road surface temperature, ambient temperature G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 4: Device Description
Inverse-polarity protection 2.1 Method of operation ARS31-UMB determines the freezing temperature of a liquid on the road surface by means of active cooling and heating. ARS31-UMB allows precise determination of the freezing temperature in the absence of accurate knowledge of the type or mixture of salt. -
Page 5: Availability Of Measurement Values
2) In the next measurement cycle, at the time 25 min GT 2 is determined and issued. So TG1 was issued for 10 minutes. 3) In the next measurement cycle, at the time 25 min GT 3 determined and issued. So TG2 was issued for 30 minutes. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 6: Installation
After the casting resin concrete has hardened, remove the installation aid and the green protective film. Reinstall the fixing screws of the installation aid in the open holes of the sensor (torque 2 Nm). G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 7: Connecting The Cable
Sensor voltage output 24 V Green RS485_A Yellow RS485_B ARS31 sensor interface Illustration 1: ISOCON-UMB connection Warning! Connecting the cables incorrectly will destroy the road sensor! Illustration 2: Installation of ARS31-UMB in the road G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... - Page 8 Operating Manual ARS31-UMB Illustration 3: Installing the ARS31-UMB G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
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Page 9: Commissioning And Testing
ARS31-UMB 3.4 Commissioning and testing After the device has been installed and connected correctly, the ARS31-UMB is initialized and measurement begins. The first measurements are available after approximately 1 minute; after approximately 20 minutes, the measurements for freezing temperature and saline concentration are available (provided that the ambient conditions allow such measurements). -
Page 10: Maintenance
The threads of the fixing screws must be greased. First the screws are attached loosely and then tightened cross-wise (torque 2 Nm). G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 11: Connections
4.2.1 Cable See Section 3.3 Installation – Connecting the cable 4.2.1.1 Power supply The ARS31-UMB power supply is 24DC (9..36V VDC). The power supply unit used must be approved for operating devices of protection class III (SELV). 4.2.1.2 RS485 interface... -
Page 12: Configuration
After loading an ARS31-UMB configuration, all relevant settings and values can be adjusted. If several ARS31-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. - Page 13 You can activate the measurement polling channels for the UMB-Config-Tool by clicking on the respective channel. This setup has no influence on the channels which can be queried by the user software. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
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Page 14: Firmware Update
New firmware is uploaded via the RS485 interface. It is not necessary to open the housing for this purpose. However, firmware uploads must take place at a temperature between 0 and 60°C. The update is controlled by means of PC software. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 15: Communication
The protocol is based on meteorological sensor communications protocol. This contains bus-compatible binary protocol which requires a strict master-slave principle and is enabled on delivery. The ARS31-UMB is a slave and only responds to requests. AN ASCII protocol is available for rudimentary measurement polling only. - Page 16 However, this only makes sense if there is only one device of this class on the bus. 6.1.3 Examples for creating addresses If, for example, an ARS31-UMB is to be given device address ID 0001, this is done as follows: Class ID for ARS is 4d = 4h Device ID is e.g.
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Page 17: Ascii Protocol
+ 1 (LSB first mode) Start value: FFFFh (Attention: Contrary to earlier Lufft protocols, the start value for CRC calculations is not 0h but rather FFFFh in accordance with CCITT) Further information is available in the description of a CRC calculation in UMB Protocol. -
Page 18: Channel Assignment For The Data Request
0…100/255 3001 Act.Saline Concentr.MgCl TLS FG3 DE 52 unsigned char 0…100/255 3002 Act.Saline Concentr. CaCl TLS FG3 DE 52 unsigned char 0…100/255 3011 Act.Saline Concentr.MgCl TLS FG3 DE 73 unsigned char G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... - Page 19 TLS) whenever the road is wet and without salt. The reason for this output is that in the (German) “Bundesdatenverteiler” (12/2010) the TLS compliant combination of 0°C freezing temperature and 0% residual salt are causing errors in the visualization. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
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Page 20: Mapping Standards
Mapping standard Temperature measurement range -40 ... +80°C -40 ... +176°F Freezing temperature measurement range 0 – 65520 -40 ... +0°C -40 ... +32°F Salt concentration measurement range 0 ... 100 weight % G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 21: Technical Data
0 ... 100% RH Perm. height above sea level: 3000 m 7.4 Electrical data Power supply: 24 VDC ± 10% Current- and power consumption: approx. 1,25A / 30 W at 24VDC Protection class: III (SELV) G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 22: Interfaces
Dimensions (W x H x D): Weight: approx. 900g Protection class: IP68 The sensor only measures freezing temperature in the temperature range -30°C … +5°C (adjustable up to 10°C). Above 60°C an error code is transmitted. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 23: Ec Certificate Of Conformity
EN 61000-6-3:2001 Part 6-3: Generic Standards – Emission Standard for Residential, Commercial and Light Industrial Environments EN 55011:2009 + A1:2010 (2011) Line-conducted disturbances IEC / CISPR 11:2009 and its modification 1:2010 Class B prEN 50147-3:2000 Radiated emission Fellbach, 21.08.2012 Axel Schmitz-Hübsch G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 24: Troubleshooting
Measurement cycle not yet completed (lasts up to 20 minutes) Interference during calculation of freezing temperature due to external influences in critical phases of the measurement cycle Sensor surface heavily soiled Green protective foil not removed G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 25: Service And Maintenance
2003/108/EC (waste electrical and electronic equipment). Waste equipment must not be disposed of as household waste. For environmentally sound recycling and the disposal of your waste equipment please contact a certified electronic waste disposal company. G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany... -
Page 26: Manufacturer
12.1 Technical support Our hotline is available for technical questions via the following e-mail address: hotline@lufft.de You can also consult frequently asked questions at http://www.lufft.com/ (menu header: FAQs). G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany...
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