Tx 50 Brochure

Tx 50 Brochure
Monex GeoScope
Geophysical Manufacturing & Consulting
terraTX-50 External Transmitter
The terraTX-50 is a high power field
transmitter capable of delivering
50Amps to a transmitter loop,
designed to be used in conjunction
with a terraTEM unit. The period is
controlled by the terraTEM or the
inbuilt GPS Synchronisation Module.
The ramp and the full Tx current
waveform are directly inputted into
the terraTEM. This makes the system
simple to operate, freeing up
operators from inputting key system
parameters into the console after
each sounding.
The transmitter current and turn-off
time depend on the transmitter loop
resistance and inductance, along with
the input voltage. Inbuilt damping
resistors allow the operator to tune
the response through a wide variety
of loops typically encountered in
The terraTX-50 base system comes complete with the console, battery pack (designed to hold
2 x 12V batteries), battery charger, 5m synchronisation cable, loop input cable, Tx output
cable, console power cable, three battery interlink cables, and an operation manual on CD.
Optional enhancements available for use with the terraTX-50 include a 200m synchronising
cable supplied on a reel, to be used in place of the 5m synchronisation cable.
Optional GPS or Crystal Synchronisation Modules are available. This option is fitted internally
within both the terraTEM and terraTX-50 consoles, with no noticeable weight increase. The
outer dimensions of both consoles remain unchanged. The GPS and Crystal Synchronisation
Modules link the transmitter and receiver consoles, to provide a trigger waveform and to
transmit bipolar waveform respectively. This option has been designed with the goal of keeping
equipment intuitive, compact and operationally simple. The recent improvement of mounting
these synchronisation modules internally provides greater flexibility to the operator, simplifying
field procedures for fixed loop, downhole surveys, and in-loop surveys when cable
synchronisation is not possible or practical. It is possible to synchronise multiple receivers to
the same transmitter. The approach adopted for the GPS Synchronisation means there is no
requirement for the receiver to be anywhere in proximity to the transmitter, even during the
initialisation stage.
Monex GeoScope Pty Ltd
6A Doongalla Road, The Basin, VIC 3154, Australia
p: +61 (0)3 9762 7862 e: info@monexgeoscope.com.au w:www.monexgeoscope.com.au
Monex GeoScope
Geophysical Manufacturing & Consulting
terraTX-50 Specifications
250V loop input voltage.
1 - 50Amps output current.
Bipolar waveform with 50% duty cycle.
Fast turn-off time (i.e. 22µs at 50Amps
into a 50m x 50m loop).
Cable (5m) timing synchronisation as
GPS, Crystal and extended cable
(200m) optional for timing
Convection cooled using heatsink with
an optional fan for additional cooling.
terraTX-50 console displays information
including the loop input voltage and
loop current information, as well as
overheating and over current warnings.
The operator can also choose from
preset period and damping values.
terraTX-50 console includes inbuilt overload protection.
External battery pack, designed to provide 24V power to the console, allowing
for continuous operation throughout the day.
Operating temperature of -20 to + 50 degrees Celsius.
terraTX-50 console measures 46cm x 36cm x 16cm, weight 10kg.
terraTX-50 battery pack measures 28cm x 25cm x 18cm, weight 12 kg (when
loaded with 2 x 12V batteries, not included in purchase).
Monex GeoScope Pty Ltd
6A Doongalla Road, The Basin, VIC 3154, Australia
p: +61 (0)3 9762 7862 e: info@monexgeoscope.com.au w:www.monexgeoscope.com.au
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