Emerson E2 Manuel D’Utilisation

Emerson Retail Solutions specs a duct-mounted rela-

tive humidity (RH) sensor (P/N 203-5771) with a 0-5VDC 
output for use in building control and anti-sweat control 
applications using Emerson Retail Solutions input boards.

1.

Cut a small circular hole in the duct large enough 
for the sensor tube to fit through.

2.

Bolt the sensor enclosure against the outside of 
the duct wall so that the sensor element fits 
through the hole and into the duct. The enclosure 
may be mounted horizontally, as shown in Fig-
ure 3-25 or vertically. The screws should be tight 
enough for the foam gasket around the bottom of 
the sensor to form an airtight seal between the 
hole in the duct wall and the outside air.

The Dewpoint Probe (P/N 203-1902) should be located 

4 to 6 feet from the floor with the probe pointing up. It is 
recommended that the Dewpoint Probe be mounted in an 
area where it will be exposed only to minimal amounts of 
dust.

Mount the probe using the standard switch cover sup-

plied with the unit as shown in Figure 3-26. 

.

The Light Level Sensor (P/N 206-0002) should be 

located facing away from direct sunlight, preferably facing 
north in the Northern Hemisphere or south in the Southern 
Hemisphere.

The light level sensor is not supplied with mounting 

hardware. The sensor should be mounted horizontally 
through the knockout of a standard weather-resistant junc-
tion box. Figure 3-27 shows a typical mounting configu-
ration.