The GMA205 Seismophone was originally developed to cater for the needs of cable fault location
technicians where simplicity of use and high accuracy is of utmost importance in noisy environments.

The instrument is equipped with a sharp cutoff noise cancelling filter, which greatly simplifies the
acoustic pinpoint location of faults. It is also equipped with a number of other user-friendly features
to simplify the procedure.

Display of information is done in analog meter fashion. 


Principles of Operation
The instrument embodies the very latest Analog Electronic techniques. The acoustic amplifier
employs high class analog filters to filter as much noise as possible before the signal is amplified.
The magnetic amplifier is gain adjustable which allows the operator to attenuate the magnetic
signal and then pinpoint exactly where the cable is.
GROUND MICROPHONES : GMA205
Home   |   Products   |   Request a Quote   |   Contact Us
SPECIFICATIONS
Filters

Display


Acoustic
Amplifier

Acoustic
Indication

Dimensions

Weight

Power Supply
ACCESSORIES
Lid


Test Cables


Earth Lead

Mains Lead
150 - 700Hz

Two 100uA FSD Analogue
meters

Gain: Better than 120 dB


Low Impedance Head-
phones (4 Ohms)

200 x 110 x 90mm

1.1 kg. (Incl. Batteries)

2 x Duracell Plus C 9V.
Accessible from the side
panel.  Battery life:
Approximately 20 hours
Aluminium with canvas
bag for test cables

5m HT lead with high
Current clamps

5m yellow/green

2m 3 core
Don't have Adobe PDF Reader?
Download it here
---------------------------------------------------------------
---------------------------------------------------------------
APPLICATION