| 4‑mm Allen key |
| Mount the humidity and temperature probe at the opposite end of the support arm from the solar radiation sensor. |
- 1
- Radiation shield (DTR503)
- 2
- Support arm (212564)
- 3
- Flat washer A6.4 DIN125 A4 (2 pcs)
- 4
- Spring washer B6 DIN127 A4 (2 pcs)
- 5
- Hex screw M6×16 DIN912 A4 (2 pcs)
- 6
- HMP155
The DTR503A package also contains a pole mounting kit. These items are not needed when installing DTR503 on a support arm:
- Mounting plate
- Support plate
- U‑bolt
- M6 nuts
- M5 and M4 screws
- Related washers
-
Mount the radiation shield on the support arm. Tightening torque
5 Nm.
- 1
- Radiation shield
- 2
- Support arm
- 3
- Flat washer A6.4 DIN125 A4 (2 pcs)
- 4
- Spring washer B6 DIN127 A4 (2 pcs)
- 5
- Hex screw M6×16 DIN912 A4 (2 pcs)
-
Remove the protective cover from the probe.
-
Lead the sensor cable through the connector cover, and attach the cable to the probe.
-
Loosen the compression fitting with your fingers and insert the probe inside the ring.
Pay attention to the rubber insert. 
- 1
- Compression fitting
- 2
- Rubber insert
-
Tighten the compression fitting until it locks in place.
CAUTION Avoid using excessive force.
| Write down the sensor installation height and radiation shield type. This is needed for the metadata in the Web UI. |