DwyerOmega ACI Outside Series Installation & Operation Instructions

RELATIVE HUMIDITY, TEMPERATURE,
AND LIGHT LEVEL SENSOR
Installation & Operation Instructions
GENERAL INFORMATION
The ACI Relative
and Light Level Sensor combines separate
technologies into one convenient package. The
Light Level Sensors are used for applications
such as turning on or off lighting based upon
the amount of available light. Each Light Level
Sensor is calibrated for 4 mA in darkness and
20 mA in bright Light. The Relative Humidity
Sensor utilizes a thermoset polymer capacitive
sensing element to deliver a proportional analog
current or voltage output signal. The hygroscopic
filter provides added resistance to moisture,
dust, and other chemicals for greater long-term
reliability. Relative Humidity transmitters feature
integral DIP switches for field selection of the
proper output signal and supply voltage to
94.0
meet your applications requirements. Each unit
3.70
also contains 0%, 50%, and 100% test options
to verify that the transmitter is both working
and wired properly. Field calibration also can
be performed by using the increment and
decrement calibration DIP switches without the
need to replace the sensing element. An outdoor
air temperature reference is also provided via
the thermistor's resistance output. The standard
enclosure is NEMA 4X rated to protect the
electronics for excellent long-term performance.
For optimal readings, follow these tips:
• Mount in shade on North side of the
structure to minimize sun exposure. In the
Southern hemisphere, the South side of
the building is where the sensor should be
mounted.
• Mount at least 1'-2' (0.3-0.6 m) below eave
to prevent thermal radiation from affecting
performance - see FIGURE 2 (p.2)
• Mount at least 4' (1.22 m) above ground
to prevent thermal radiation rising up
affecting performance.
• The plastic tube that houses the sensor
must be pointed down to avoid debris,
water, or ice potentially affecting sensor
performance.
• Avoid mounting to chimney walls, above
windows, above vents, near doors, or
dampers.
• Do NOT point the sensor towards the sky.
Material (ie: birds waste, snow, etc.) can
cover the eye.
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: 1-888-967-5224 | Website: workaci.com
Humidity, Temperature,
94.0 116.6
3.70 4.6
94.0
[94.0 mm]
3.70"
3.70
MOUNTING INSTRUCTIONS
Take care when mounting. Sensors should
not be placed in direct sunlight, or any other
potential heating or cooling sources that could
affect temperature being sensed. Remove the
cover from the housing by loosening the screws
located in corners of the housing. Attach the base
directly to the wall. Mounting holes are located
at the corners of the housing – see FIGURE 1.
Drill pilot holes for the mounting screws. Use the
enclosure mounting holes as a guide.
Install the PG11 watertight fitting supplied
with the sensor if not using conduit. The outer
knockout ring (PG 11/16) on housing should
not be removed when using a ½" NPT conduit
fitting. The 4X enclosure has (4) screws. Confirm
cover is fastened securely in order to prevent any
moisture being introduced into housing.
Refer to Wiring Instructions (p. 2-4) to make
necessary connections.
Page 1
Phone: 1-888-967-5224
Website: workaci.com
[94.0 mm] 94.0 116.6
[116.6 mm]
3.70"
3.70 4.6 4.6"
85.8
[85.8 mm]
3.38 3.38"
56.1
[56.1 mm]
2.21"
2.21
Version: 1.0
I0000975