Geophysical Transmitter GGT-10 Brochure

GGT-10 Geophysical Transmitter Versatile, Medium Power 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, 20 A (Optional 30A) ? Fast turn-off time: 125 µsec (300 x 300 m loop) ? Drives a loop or grounded dipole ? Efficient, modular design ? Rugged design reliable in all climates ? 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-10 TRANSMITTER General Description: Broadband, constant-current, time and frequency domain, medium-power geophysical transmitter Enclosure: Welded, hardened aluminum frame inserted in a high impact fiberglass case Size: 53 x 51 x 37 cm (21 x 20 x 14.5 in) Weight: 51 kg (113 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: 10KVA @ 30°C Output voltage range: 50 to 1000V Output current range: 0.2 to 20A (Optional 30A) Current stability: ±0.2% 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 Transmit / Reset switch Current adjust pot, continuously adjustable, locking Voltage range switch (50-250V, 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 LCD: Output current (±0.01A) Input power (0-30 KW) Transformer temperature Loop turnoff time (microseconds) Indicator lamps: control power on, transmit on, transmit polarity Fault indicator lamps: output and input overcurrent, output and input overvoltage, end of regulation, alternator overvoltage, open circuit Output Jacks Current calibrate terminals (50 mV/A) Output current terminals Grounding jack Power Three-phase, 120 VAC, 400 Hz Recommended motor generator set: Zonge ZMG-7.5 Power connector: four-pin military screw-type with locking ring Options Spare parts kit (standard and extended kits available) LCD heater for temperatures below –15°C (+5°F) Current monitor isoamp module Resistor load bank Switch box for rapid switching of dipole pairs Internal timing board for specified IP-range frequencies 30 amp output Specifications subject to change without notice © Copyright 1998, Zonge International, Inc.