Inovonics EN1723 - Manual

© Inovonics, 2011 - www.inovonics.com
EN1723 Dual Input Temperature Sensor
Installation Instructions - 05366C
1 Overview
The Inovonics EN1723 provides internal measurement and external
thermistor options in a single device. The on-board sensor is excellent for
monitoring ambient indoor temperature, and the external sensor is user
selectable to match your application.
1.1 Inovonics Wireless Contact Information
If you have any problems with this procedure, contact Inovonics Wireless
technical services:
• E-mail: [email protected]
• Phone: (800) 782-2709
1.2 EN1723 Components
Figure 1 EN1723 components
2 Installation and Startup
2.1 Install/Replace the Battery
1. Pry the top lip of the mounting bracket up, and lift the bracket off of the
transmitter.
2. Use your thumb to depress the housing release tab on the bottom of the
transmitter; separate the housing.
3. Install the new battery.
4. Press the Reset button to initialize the transmitter.
2.2 Mount an External Thermistor
The transmitter uses an on-board thermistor. If you want to use an external
thermistor:
1. Wire the external thermistor using 24-gauge wire, no more than 40 feet
long.
2. Route the external thermistor wiring through either the rectangular
cutouts on the back of the housing and bracket, or through the rounded
wiring cutout at the top of the housing.
Note: If you want to use the cutout at the top of the housing, you will need
to trim the bracket.
3. Use a small screwdriver to attach the external thermistor wiring leads to
the terminal block.
4. Place a jumper on the external thermistor selection pins, allowing the
transmitter to use the external thermistor in addition to the on-board
thermistor.
5. Press the Reset button to complete configuration.
2.3 Select the Frequency Band
EchoStream products are able to use a range of radio frequencies, and
must be configured for your geographic area. To configure the transmitter:
1. Place a selection jumper on the appropriate frequency band selection
pins.
• Place the jumper on the top two pins, marked NZ, to set the frequency
range to 921-928 MHz for New Zealand.
• Place the jumper on the bottom two pins, marked AU, to set the
frequency range to 915-928 MHz for Australia.
• Leave the jumper off the pins to set the frequency range to 902-928
MHz for North America.
2. Press the Reset button to complete configuration.
Caution: When pressing the Reset button, make sure you don’t also touch
the frequency band selection pins. Touching the frequency band selection
pins while pressing the Reset button can inadvertently set the transmitter
to the wrong frequency band.
3 Program the Transmitter
EN1723 transmitters are programmed at the factory. It is not usually
necessary to reprogram EN1723 series transmitters. If you want to
reprogram the transmitter, parameters can be changed using the
programming header.
4 Mount the Transmitter
1. Attach the mounting bracket to the wall, using either screws or double-
sided tape.
Note: There are two mounting holes for standard installation. An optional
third mounting hole is located under the battery. Use the third mounting
hole to secure the housing to the bracket.
2. Hook the bottom of the transmitter into the bracket’s bottom catch, and
press the transmitter into the bracket so that the bracket’s top lip snaps
into place.
5 Television and Radio Interference
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
6 FCC Part 15 Compliance
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including
interference that may cause undesired operation.
A Frequency band selection pins B Programming header
C Reset button D Terminal block
E External thermistor selection
pins
A B C
D
E