Geophysical Transmitter-GGT-3

GGT-3 Geophysical Transmitter Backpackable FEATURES ? Constant current supply ? Used for time / frequency domain IP, Resistivity, CR, TEM, CSAMT ? Broad-band: DC to 8 kHz (standard) ? Output up to 1000 V, 15 A ? Fast turn-off time: 125 µsec (300 x 300m loop) ? Drives a loop or grounded dipole ? Sealed construction for operation in wet environments ? Compact modular design ? Optional internal time base Zonge Offices: Arizona, Alaska, Nevada, Colorado and Oregon Headquarters: 3322 E. Ft. Lowell Road, Tucson, AZ 85716, USA (800) 523-9913 Tel: (520) 327-5501 Email: zonge@zonge.com Fax: (520) 325-1588 Web: http://www.zonge.com 20130110SPECIFICATIONS FOR THE GGT-3 TRANSMITTER General Description: Broadband, constant-current, time and frequency domain, backpackable geophysical transmitter Enclosure: Welded, hardened aluminum frame mounted in a durable aluminum case. Size: 38 x 25 x 61 cm (15 x 10 x 24 in) Weight: 30 kg (66 lb) Operating temperature: -40° to +55°C (-40° to +130°F) Operating humidity: 0 to 90%, non-condensing Electrical Characteristics Drives a loop or grounded dipole Turnoff time: Under 10 µsec for a resistive load; 125 µsec for a 300 x 300 m loop (16 ohms resistance, full current) Maximum input: 3.5 KVA @ 30°C Output voltage range: 50 to 1000V Output current range: 0.1 to 15A Current stability: ±0.1% Frequency range: DC to 8 kHz Switching Control Switching controlled by external device Recommended transmitter controller: Zonge XMT-32 Waveform type: Capable of virtually any type of pulse waveform, limited by external controller device Controls Power ON / OFF Current adjust pot, continuously adjustable, locking Voltage range switch (50-125V, 100-250V, 200-500V, 450-750V, 700-1000V) Loop / Dipole select switch Displays Analog input voltage meter, 0-150 V Analog output voltage meter, 0-1000 V Power On / Off lamp, transmit lamp, output lamp Output current LCD (±0.01A) Indicator lamps: Control Power ON Transmit ON Fan ON Transmit Polarity Fault indicator lamps: Supply and output overvoltage Alternator voltage Open output Input and output overcurrent Over temp End of regulation Output Jacks Current calibrate terminals (100 mV/A) Output current terminals Grounding jack Power Three-phase, 120 VAC, 400 Hz Recommended motor generator set: Zonge ZMG-3 or BMG-3 Power connector: Four-pin military screw-type with locking ring Options Spare parts kit (standard and extended kits available) Current monitor isoamp module Resistor load bank Switch box for rapid switching of dipole pairs Pack frame Specifications subject to change without notice © Copyright 2012, Zonge International, Inc.