Vaisala AWS310-SITE, Integration Manual

Page: 40 / 78

• With hot filling material, use a duct of robust material, such as stainless steel, from the
road or runway edge to the sensor. Plastic ducting may start cracking when the road or
runway is resurfaced. The material must also be resistant to de-icing and other
chemicals.
• Use as narrow a duct as possible. The larger the slot, the greater the risk is for the slot
filling material to start cracking.
• Use at least 60 mm (2.36 in) slot filling material on the top of the duct.
• Seal the ducting from the sensor end with tape. Leave the other side open so that water
can drain from there.
• To allow water to exit the duct, drill a hole to the lowest part of the duct.
4.4.3 Cutting slot for DRS511 installation
Figure 8 DRS511 slot dimensions
1 Cable slot:
• Depth: 80 … 90 mm (3.15 … 3.45 in)
• Width with cable only: 12 mm (0.47 in)
• Width with cable duct: 20 … 30 mm (0.79 … 1.18 in)
2 DRS511 slot:
• Depth: 80 … 90 mm (3.15 … 3.45 in)
• Width: 45 … 50 mm (1.77 … 1.96 in)
• Length: 120 mm (4.72 in)
AWS310-SITE RWCC Integration Guide M212071EN-C
38