User's Manual

CHAPTER2
InstallingtheRTU
15
Shared secret: 08154711
0
#
FieldInstallation
Installing a preset A753 in the field is a fairly simple process. By
performing a connectivity check using an LED tool (not included in the
delivery of a A753, but available from Adcon), you will be able to
prove connectivity to the A850 gateway.
The LED tool is shown in Figure 6.
Figure 6. LED tool
Note: The LED tool is a blind plug to be connected to the SOLAR connector.
Follow these steps to install an A753 in the field:
1. Review the installation area and choose the best site.
Note: For the A753 GSM/GPRS, make sure that you have a sufficient RF
signal from your cellular service provider. The simplest way to achieve
this is to check a cellular phone operated by the same cellular service
provider on the site where you want to install the RTU.
2. Assemble the pole set.
3. Put an Adcon plastic cap into the top of the pole and secure it
with a pipe clamp to protect the top of the pole from damage.
4. Using a hammer, drive the 80 cm aluminum rod into the ground.
5. Using the pipe clamp supplied, fasten the solar panel onto the
pole. Make sure that the panel is facing south (north if you are
located in the southern hemisphere) and out of the way of the
A753 RTU.
Note: The solar panel can be mounted under or behind the A75x RTU, but
make sure that the RTU does not shadow the panel.
6. Fasten the A75x RTU to the top of the pole with a pipe clamp.
Adcon recommends that you perform a connectivity test, if you
can, to check the positioning of the device.
 WARNING If you turn the fastening screws too tightly, you could damage the
connectors.
7. Attach the sensors to the I/O connectors and the solar panel to
the POWER connector by turning the plugs’ fastening screws
clockwise until secure.
8. If you have SDI-12 sensors, attach the respective sensors.