ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 119)

4-1
C H A P T E R 4
Communication
After installing the sensors in the pipe and connecting the sensors to
the IETG FlowHawk
™ monitor, it is necessary to establish
communication with the monitor through wireless communication
(remote) or direct connection (on-site). Both methods of
communication require a field (laptop) computer or office computer
equipped with the Profile
® or Qstart ™ software.
IETG offers three options for wireless communications:
 GSM Module This option involves mounting a GSM module
containing a modem inside the manhole next to a battery-
powered FlowHawk.
 EMU This option involves installing an EMU (external
modem unit) outside, but in close vicinity to, the manhole in
which the monitor is installed. It also requires running a
power/communication cable between the monitor and EMU.
An EMU is required when the system (monitor/EMU) will
receive power from an external DC source.
 EMUX This option involves installing an EMUX (external
modem unit/multiplexer) outside, but in close vicinity to, the
manhole in which the monitor is installed. It also requires
running a power/communication cable between the monitor and
EMUX and a communication cable between an RTU (remote
terminal unit) and the EMUX. An EMUX is required when the
system (monitor/EMUX) will communicate with a SCADA
RTU through Modbus protocol and receive power from an
external DC source. Serving as an interface (multiplexer), the