Section 4. ET106 Sensor Arm

Installation

4.1Components

(1)ET106 Sensor Arm

(1)Met One 034A Wind Sensor

(1)034A Mounting Shaft

(1)Radiation Shield

4.2 Installation

Install the ET106 Sensor Arm after the ET Enclosure is mounted low on the ET Tower. You may need to temporarily remove communications option. Mount the sensor arm as shown in Figure 4.2-1 without the wind sensor attached.

ET Sensor

 

 

ET Enclosure

 

Arm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screws

(4)

FIGURE 4.2-1. ET106 Sensor Arm Mounting

1)Remove the cover from the ET Enclosure

2)Place the sensor arm on top of the enclosure, lining up the four threaded holes on the under side of the arm with the four holes in the top of the enclosure. Attach the arm to the enclosure by inserting and tightening four Phillips head screws. Adjust the position of the ET Enclosure so that the sensor arm is oriented along a due east to due west axis.

4.3Sensor Connection

Refer to Section 3 for sensor connection details.

4-1