GENERAL INFORMATION
The DT2630 is a battery operated wireless duct sensor
that gives the flexibility and ease of installation for
monitoring duct temperatures wirelessly using
900MHz spread spectrum technology rather than
costly hardwire installations. The single point probe is
0.25” O.D., made of 304 stainless steel, and is available
in 4”, 6”, 8”, 12”, and 18” lengths to fit most applications.
The DT2630 can be ordered with the standard
enclosure or NEMA 4X enclosure depending on the
specifications required. The DT2630 will send the
temperature wirelessly to the RM2432D receiver that
converts the wireless signal to voltage input for use
with a DDC controller, or to a transceiver which will
send the data to a BAS using BACnet, Modbus, or
Lonworks protocol. Transmission distance in a typical
building is 200-300 feet horizontal depending on the
layout and construction of the building, and one floor
above and one floor below the transceiver. Sensor
distance and reliability can be increased with the
addition of a RR2552B(s) repeater.
For optimal temperature readings, follow these
tips:
•
Duct probe should be placed (3) to (4) duct
segments down from any bend or obstructions and
away from 90° bends.
•
Mount the sensor on the top or sides of duct
work; mounting on the bottom risks damage
due to moisture.
•
The sensor should be mounted in the middle of the
duct where air circulation is well mixed (no
stratification), and not blocked by obstructions.
Stratification and obstructions can cause sensing
errors. An example is downstream from a heating
or cooling coil.
MOUNTING INSTRUCTIONS
Drill a 7/8” hole in the duct and insert the probe
through the hole until the foam pad is tight to the
duct. Drill pilot holes for the mounting screws. Use the
enclosure flange as a guide, or use the dimensions
listed below to measure out.
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone:
1-888-967-5224 |
Website:
workaci.com
Page 2
Version: 9.0
I0000664
Now fasten and insert (2) screws #8 x 3/4" TEK
(provided and recommended) through the
mounting holes in the flange and tighten until the
unit is held firmly to the duct.
Note:
Wireless sensors should be installed within 200
to 300 feet of the receiver. RR2552 signal repeaters can
be installed as to increase transmission distance
between sensors and receivers.
To select the proper sensor location, first install and
power the receiver. To activate the sensor insert the
battery observing the polarity. The mesh networked
wireless system does not require any additional
wireless equipment to determine the proper location of the sensors.
While the sensor is attempting to connect to the receiver the Data-Link LED will blink rapidly 8–10 times
every 10 seconds. Once a connection has been established the Data-Link LED will blink once to indicate the
data transmission has been received successfully. The Data-Link LED will continue to blink once for every
data transmission. The data transmission rate is programmed into the sensor (normally 1 minute intervals).
If the sensor continues to blink rapidly 8-10 times every 10 seconds, a repeater will need to be added. See
RR2552B instructions for repeater installation.
The sensor has a Low Battery LED that will start to blink continuously when the battery voltage is low. A low
battery signal is also sent to the receiver for remote indication that the battery should be replaced. If the
battery is not replaced in approximately 2 months the battery voltage will become so low that the Low
Battery and Data-Link LEDs will not blink. Replace the battery and the Data-Link LED will start blinking
while the sensor is re-establishing communications with the receiver.
Attach the cover of the duct sensor by installing the four screws to complete the installation.
PRECAUTIONS
SENSORS, REPEATERS AND RECEIVERS SHOULD NOT BE INSTALLED IN THE FOLLOWING AREAS:
• INSIDE METAL ENCLOSURE / PANEL
• INSIDE OR IMMEDIATELY NEXT TO ELEVATOR SHAFT / ELEVATOR BANKS
• IN FRONT OF OR IMMEDIATELY NEXT TO LARGE TREES OR LARGE BODY OF WATER
TRANSMISSION DISTANCE AND PERFORMANCE WILL BE DRASTICALLY REDUCED.
CAUTION:
DO NOT USE THIS PRODUCT IN ANY SAFETY RELATED APPLICATIONS WHERE HUMAN LIFE
MAY BE AFFECTED.
FIGURE 2:
DUCT MOUNTING
0.875"
(48.50mm)
