Section 3. ET Instrumentation Installation

e)Strip 1 inch of insulation from each end of the 9-inch piece of 12 AWG ground wire. Insert one end into the brass ground lug located at the top back of the enclosure. Curl the other end and place under the head of one of the lightning rod clamp bolts. Tighten the bolt.

3.2Sensor Connection

1)Install the sensor set as described in Section 4.

2)Remove the protective connector cover from the back of the ET Enclosure by removing the two Phillips head screws. Sensors connect to one of seven labeled bulkhead connectors as shown in Figure 3.2-1.

Earth

Ground

Stand off

Connector Sensors

TEMP

#4 CS615

#2

WS/WD

#6

SDI 12

GYP BLOCK

 

#7

TEMP

#5

RAIN

(PRECIP)

 

#1

TEMP / RH

#3

SOLAR

RADIATION

 

#8

COMM

CS I/O

POWER CABLE PORT

STAND OFF

COAXIAL CONNECTION

FIGURE 3.2-1. Position of Sensor Bulkhead Connectors

3)Replace the protective connector cover after sensors are connected and power and communications cables are installed. Ensure that all cables and connector caps are under the cover before tightening the screws.

4)Configure sensor switch settings as shown in Figure 3.2-2 if necessary.

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