User Manual VS2k-UMB / VS20k-UMB
V 2.3 / 28.01.2020
Chapter 11 Technical Data
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11 Technical Data
11.1 Visibility
Measuring principle: ....................... 42° forward scattering
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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: ....................................... +/- 10% visibility
11.2 Storage conditions
Permissible storage condition: ........ -40°C ... +70°C (-
40ºF…158ºF)
Permissible relative humidity: ......... 0 ... 100% r.H. (non condensing)
.......................................................
0 … 98% (inside packaging)
11.3 Operating conditions
Permissible operating temperature: ... -40°C ... +60°C (-
40ºF….140ºF)
Permissible rel. humidity: ................... 0 ... 100% r.H.
11.4 Electrical Data
Voltage supply: ............................... 20 ... 30 VDC; typical 24 VDC
Current consumption: ..................... < 200 mA (motor running and current outputs active)
about 100 mA in normal mode and RS485 output
Power consumption ........................ 3 W (typical), 10 W (max.)
Protection class: ............................. III (SELV)
11.5 Interfaces
RS485 (2-wire, half duplex) for configuration and measurement polling
Analogue output (4
– 20mA) for measurement value output.
11.6 Mechanical Data
Dimensions (W x H x D): ................ approx. 550 x 80 x 230 mm
Weight: ........................................... approx. 4 kg without holder
....................................................... approx.. 5.6 kg with holder
Protection class: ............................. IP66
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In a horizontal plane
