Necessary equipment for embedded sensor installation - RWS200

RWS200 Installation Manual

Product status
Document code
M211608EN
Revision
AA
ft:locale
en-US
Product
RWS200
Document type
User guide
Follow the local regulations regarding the installation material and process. These instructions describe a few alternatives.
WARNING To avoid personal injury, follow the safety instructions provided with the material.
The following tables list the tools and equipment usually needed for installing embedded surface sensors. Depending on local regulations, you may also need other tools and equipment.Equipment needed for embedded sensor installation
Equipment Specifications
Diamond saw Must be able to cut asphalt 80 … 90 mm (3.15 … 3.45 in) deep and preferably 12 … 30 mm (0.47 … 1.18 in) wide with a single pass, depending on the width of the cable slot. For cable slot requirements, see Cutting slot for DRS511 installation.
Electric breaker

Including:

  • Suitable generator
  • Flat bit 25 … 50 mm (0.98 … 1.96 in) wide

If you are installing DTS12G, you also need a drill bit 400 mm (15.74 in) long and 13 … 15 mm (0.51 … 0.59 in) wide.

Handheld air blower, compressed air, or pressure washer To clean the slot.
Industrial suction fan To clean the slot. Optional, recommended for porous asphalt installations.
Blowtorch To dry the slot.
Suitable ducting To protect the cable from the road or runway edge to the weather station enclosure. Size: approximately 20 … 30 mm (0.79 … 1.18 in) in outer diameter. You can use one duct for each cable, if needed.
Spirit level To verify the sensor position.
Wire brush To even the fill in the slot.
Chemical cleaner and plastic scrubber pad To clean the sensor head from tape residue after installation. Not needed if Fabick is used.
Chalk line or crayon To mark the cut in the road.
Multimeter To test the sensor cable.
Various hand tools For various tasks.
Material and equipment for Fabick epoxy resin
Material or equipment (Vaisala order code) Specifications
Fabick installation kit (251264)
  • 3 tubes of Fabick polyamine epoxy resin, enough for one DRS511. No additives or colors required.
  • Installation cap
  • Hard-setting putty
Fabick applicator (251263) Applicator for Fabick epoxy resin
Fabick tube (251262) Additional tube of Fabick, 450 ml
Pieces of carton To prevent the filling material from flowing freely around the slot.
Flat head screwdriver To remove the installation cap.
Material and equipment for cold filling material
Material or equipment Specifications

Slot filling material, such as flexible epoxy or polyester grout

The epoxy/grout must be hard, but still make a good bond between the asphalt or concrete and the sensor and it must have a curing time of less than one hour. The result must be a hard surface, which forms a strong bond between the asphalt or concrete and the sensor.

You may also need additional materials for overbanding and increasing traction. Consult local guidelines and manufacturer documentation.

Examples:

  • Montocryl acrylic mortar (19423). One 6‑liter batch is needed for 4 to 6 sensors (assuming some other material, such as sand and bitumen, is used for covering the cable slot).
  • Instarmac PY5 polyester resin mortar (summer grade and winter grade available). One 25 kg (55 lb) batch is needed for 2 to 4 sensors. Requires the use of concrete color dye (black) for the epoxy to be black.
Containers and tools To measure and mix the epoxy/grout.
Masking tape, insulation tape, or electrical tape and a knife To protect the sensor during installation.
Hard-setting putty To set the sensor into the slot.
Foam (Only if allowed by local guidelines) To protect the sensor cable in the slot.
Pointing trowel To even the fill in the slot.
CAUTION Hot material is only meant for professionals.
Material and equipment for hot filling material
Material or equipment Specifications

Slot filling material, such as construction bitumen (asphalt cement)

To fill the slot. You can use construction bitumen also to cover the fill, or elastomeric bitumen.

The sensor cable is protected from the hot material by a cable duct and filler sand.

Containers and tools To heat and pour the bitumen.
Masking tape, insulation tape, or electrical tape and a knife To protect the sensor during installation. Use the kind of tape that does not leave residue on the surface when removed.
Dry filler sand To increase the thermal conductivity of the filling material. Size: 0.1 … 0.6 mm (0.004 … 0.024 in).
Pieces of carton To prevent the filling material from flowing freely around the slot.
Suitable stainless-steel ducting

To protect the sensor cable in the asphalt cut. Use cable duct that withstands the temperature of the hot material that you are using.

Size: approximately 20 … 30 mm (0.79 … 1.18 in) in outer diameter. You can use one duct for each cable, if needed.