Emerson E2 User Manual

Emerson Retail Solutions transducers convert pressure 

readings to proportional electrical signals between 0.5 and 
4.5 volts. The transducer is designed with a 1/8-inch male 
FPT fitting for connection to a standard access fitting. If 
the fitting is configured with a Schrader valve, this fitting 
will have to be removed and replaced with a 1/8-inch 
female fitting. Each pressure transducer is supplied with 
20 feet of cable for connection to a 16AI input board.

The pressure transducers should be mounted in a verti-

cal position (pressure port down) above crank case oil 
level to prevent drainage of oil into transducer port.

Inside temperature sensors are supplied within a wall-

mounted enclosure for attachment to a standard switch 
plate.

The temperature sensor should be located in a central 

location—within the zone to be measured—away from 
doors, windows, vents, heaters, and outside walls that 
could affect temperature readings. In addition, the sensor 
should not be mounted above other sensors that generate 
heat during operation (such as relative humidity sensors). 

The indoor temperature sensor should be between four 

and six feet from the floor.

Mount the sensor using the screws provided as shown 

in Figure 3-19.

The outside or ambient temperature sensor should be 

located on the north side of the building, preferably under 
an eave to prevent sun-heated air from affecting the tem-
perature of the sensor.

The temperature sensor may be mounted using any 

standard tubing clamp. Emerson Retail Solutions also 
offers an aluminum cover and clamp (P/N 303-1111) 
which may be mounted as shown in Figure 3-20 (fasteners 
are not provided).