C h a p t e r 4 communication, Communication – ADS Environmental Services IETG FlowHawk QR 775012 A4 User Manual

Page 119

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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

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