User's Manual

Using the A740 RTU
d. Push the button and keep it pushed. The LED above the button will
start blinking in half second intervals. If the LED blinks in two second
intervals, either the battery is low (< 5.5V) or the POWER connector is
not connected or not properly wired. Keep the button pushed for 2
seconds until the blinking intervals change to 4 very short blinks (1/8
th
of a second followed by a pause of 1/8
th
of a second).
e. Now release the button and watch the LED.
f. When the RTU receives the first answer to its broadcast it will light the
LED for 4 seconds. Up to ten seconds later the number of station calls
received will be reported by a half second blink per station.
g. Finally 4 very short blinks indicate the end of the connectivity test.
Should the end of the connectivity test be signalled without any sign of
having received answers to station’s broadcast, you are not within the
radio range of other Adcon devices. This could be remedied by e.g.
increasing the antenna mounting height or move the station a few
meters away, if you are sure that there are other RTUs nearby.
This completes the installation of your addNODE RTU. Be sure to make a note of
the following information because you’ll need it when you configure the device in
the software:
• Serial number for each RTU
• Type and channel information of sensors connected to each RTU
2.3.2 Stand-alone Installation
For an outdoor installation of the addNODE RTU you need an IP-67 enclosure with
an integrated 35mm DIN rail. Such an enclosure can be provided by Adcon
Telemetry.
1. Assemble the mast from the set of poles.
2. Put a “pounder cap” on top of first pole segment it drive its beveled end into the
ground using a sledge hammer. The deeper down you get the more stability
you will have. In windy areas or soft solid guy wires will add additional safety to
prevent the mast from tilting or falling over.
3. Fasten the solar panel onto the aluminum pole with the pipe clamp provided.
Make sure that the panel is facing south (north if you are located in the
southern hemisphere) and is clear of any object that might cast its shadow
onto it.
Note: The solar panel can be mounted under or behind the addNODE RTU, but make
sure that the RTU does not shadow the panel.
4. Fasten the IP67 enclosure to the rod in a comfortable height using the clamps
supplied.
5. Proceed with the procedure as described in 2.3.1.
6. Attach the sensors to the I/O connectors and the solar panel to the POWER
connector by connecting the sensors and solar panel’s wires to the proper
cage clamps.
14