Vaisala Remote Road Surface Temperature Sensor DST111

Several measurements combined compactly in one sensor:

  • Remote temperature measurement
  • Unique correction of the error caused by the emissivity of the road surface, negating the need for emissivity adjustment
  • Easy installation and service
  • Low maintenance costs
  • No internal moving parts
  • Stable measurement results even with intense traffic
  • Weather-proof, durable design
  • Reports air temperature and humidity
  • Easy integration with Vaisala ROSA Road Weather Station
  • Capability to act as stand-alone device in remote locations with solar/gsm options

 

Electrical

Power supply 9 ... 30 VDC
Power consumption 33 mW
Interface
DST111 Isolated RS-485
DST111R RS-232
Connector M12 (5 pins)
DST111 RS-485 and power, male
DST111R RS-232 and power, male

Environmental

Operating temperature -40 ... +60 °C
Operating humidity 0 ... 100 % RH
CE Compliant IEC(EN)-61326
Vibration IEC 60721-3-3

Installation

Measuring distance 2 ... 15 m
Measuring area Diam. 80 cm at 10 m
Installation angle from the horizontal line 30 ... 85°

Measuring range

Resolution 0.1 °C
Surface temperature -40 ... +60 °C
Time constant 1 min
Data refresh time 30 s

Mechanical

Dimensions (cm) 32 x 13 x 10
Weight 1.6 kg

 

Remote Surface Temperature Sensor DST111