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Table of Contents
Related Manuals for Lufft VS2k-UMB
Summary of Contents for Lufft VS2k-UMB
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Page 2: Table Of Contents
User Manual VS2k-UMB / VS20k-UMB V 2.3 / 28.01.2020 Inhaltsverzeichnis Read before use ......................4 Safety instructions ....................4 Designated use ....................... 4 Guarantee ....................... 4 Incorrect use ......................4 Scope of delivery ......................5 Part numbers ........................5 VS2k-UMB / VS20k-UMB ..................5 Accessories ...................... - Page 3 User Manual VS2k-UMB / VS20k-UMB V 2.3 / 28.01.2020 10.2.2 Example of an ASCII request ................12 10.3 Channel assignment for data requests ..............13 10.4 Mapping standard ....................14 Technical Data ......................15 11.1 Visibility ........................15 11.2 Storage conditions....................15 11.3 Operating conditions ....................15 11.4 Electrical Data ......................15...
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Page 4: Read Before Use
User Manual VS2k-UMB / VS20k-UMB V 2.3 / 28.01.2020 1 Read before use Before using the equipment, please read the operating manual carefully and follow the instructions in every detail.Verwendete Symbole Important information concerning potential hazard for the user Important information concerning the correct operation oft he equipment 1.1 Safety instructions... -
Page 5: Scope Of Delivery
3.3 Spare parts Connection cable 10 m ............8366.UKAB10 Connection cable 20 m ............8370.UKAB20 3.4 Additional documents and software The following documents and software are available for download on www.lufft.com: • Operating manual ..this document • UMB protocol ....Communication protocol for UMB devices •... -
Page 6: Equipment Description
V 2.3 / 28.01.2020 4 Equipment description The VS2k-UMB / VS20k-UMB is a visibility measurement device for the determination of optical visibility in the range of 0 – 2000m / 0 – 20000m (32 – 6500 ft / 32 – 65617 ft), as needed e.g. -
Page 7: Installation
Turn away the measurement aperture from the road Distance to the road > 2 m / 6,5 ft Do not mount any other devices within 50 cm (1.6 ft) above or below the VS2k-UMB / VS20k-UMB Make sure that a distance of 2 m (6.5 ft) in front of the measurement aperture is free of any kind of objects (masts, trees, grass, bushes etc.) -
Page 8: Connections
It may be permanently damaged You may risk an electric shock 6.2 Power supply The VS2k-UMB / VS20k-UMB is powered by 24VDC. The power supply unit must be approved for operation with equipment of protection class III (SELV). 6.3 RS485 interface The device has a DC-isolated half-duplex 2-wire RS485 interface with the following settings: Data bits: ...... -
Page 9: Commissioning
V 2.3 / 28.01.2020 7 Commissioning When the VS2k-UMB / VS20k-UMB is connected to the power supply a rattling sound must be heard. It comes from the spider defender which is switched on together with the device in the first place and again later sporadically in order to deter spiders from attaching their webs to the sensor. -
Page 10: Calibration / Adjustment
User Manual VS2k-UMB / VS20k-UMB V 2.3 / 28.01.2020 9 Calibration / Adjustment The device has undergone a calibration in the factory when deliverd. The recommended calibration interval is 12 months. An on-site calibration kit can be purchased. 9.1 Preconditions •... -
Page 11: Addressing With Class And Device Id
10.1.3 Examples for the formation of addresses Addressing e.g. a VS2k-UMB with the device ID (serial number) 0001 works as follows: Class ID for visibility is 3d = 3h Device ID (serial no.) is e.g. 001d = 001h By compiling the class with the device ID the following address will result: 3001h (12289d). -
Page 12: Crc Calculation
Start value: FFFFh (Warning! In contrast to earlier Lufft protocols, in this case the start value for CRC calculations is not 0h but FFFFh according to CCITT!!) Further information can be found in the description of a CRC in the UMB Protocol V1_0. -
Page 13: Channel Assignment For Data Requests
– 65520d. From 65521d – 65535d various error codes are defined. Example: Request: &_12289_M_00601 With this request, channel 601 of the device with address 12289 (VS2k-UMB with the device ID 0001) is polled. Response: $_12289_M_00601_03456 With the scaling for visibility the following calculation then results:... -
Page 14: Mapping Standard
User Manual VS2k-UMB / VS20k-UMB V 2.3 / 28.01.2020 Long time pollution recognition 4002 unsigned char logical value sender Long time polllution recognition 4003 unsigned char logical receiver 0 = OFF 1 = AUTO-Motor on Spider Defender Status 4030 unsigned char logical 2 = AUTO-Motor off 0…4294967295... -
Page 15: Technical Data
Measuring principle: ....... 42° forward scattering Measurement: ........ Visibility Measuring range VS2k-UMB: ..10m - 2000 m; 32 - 6500 feet; 0.006 – 1.200 miles Measuring range VS20k-UMB: ..10m - 20000 m; 32 - 65616 feet; 0.006 – 12.00 miles Accuracy: ........ -
Page 16: Possible Failures
- wrong device ID → check ID The device does not allow adjustment - check if device is very dirty Startup of the VS2k-UMB / VS20k-UMB not „Calibration error 0“ finished. Waiting time between switching on / during calibration with the UMB Config... -
Page 17: Disposal
User Manual VS2k-UMB / VS20k-UMB V 2.3 / 28.01.2020 14 Disposal The device must be disposed of in accordance with European Directives 2002/96/EC and 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.
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