DJF-2 Metal Detector Metal Detector Underground Mineral Detection

DJF-2 Metal Detector Metal Detector Underground Mineral Detection

Main Applications and Features

• High Power Direct Current IP Measuring System includes: receiver, time domain IP transmitter, rectification power, simulator and dummy load. The system is a high-tech product which integrated with geophysics, electronics, computer technology, information processing technology, aiming to hydro-geological, mineral geology, engineering geology, energy, geology, environmental geology applications.
• For large areas of metal mining, non-metallic mineral resources, geological survey and detailed survey work, search for groundwater and other hydrological and engineering geological exploration.
• The system transmitter has two synchronization mode (domestic initiation): delay synchronization after pulse and high-precision quartz clock synchronization, which allows high efficiency of field production, also convenient and flexible.

System Composition

One 5/10/15KW High Power Direct Current IP Transmitter
One 5/10/15KW High Power Rectifier Power Source
One or more DJS-8B Direct Current IP Receiver
Electrodes AB, Power Lines AB, Measuring Electrodes, and other related accessories

DJF-2 5/10/15kw Transmitter

• Auto time travel, with regular current storage function to facilitate future resistance calculation
• Micro-computer controlled, large-screen LED to display output voltage and current, touch panel.
• Provide with RS-232 serial interface to facilitate the transferring of current data
• High voltage, high current, with over-voltage and over-current protection and circuit-opening attention

Technical Specifications

• Maximum Transmitting Power: 5 /10 /15KW
• Maximum Power Supply Voltage: ± 1000 V
• Maximum Power Supply Current: 5/10/15A
• Power Supply Pulse Width: 1~60 sec.
• Output Waveform: Bipolar waveform, Duty Cycle 1:1
• Current Storage Time Interval: Programmable, Step Length: 1 minute
• Data Storage: Can store current data not less than 8,000 groups (including data like year, month, date, hour, minute, etc. of measurement time), with power-failure protection
• Large Screen Display: 160 × 128 Lattice Graphic LCD
• Working Temperature: -10°C~ +50°C, 95%Rh
• Storage Temperature-20°C~ +60°C
• Volume: 476×309×247 mm
• Weight: 12 kg

DJS-8BHigh Power IP Receiver

• Rapid and Accurate: By adopting pulse delay synchronization mode and high-precision quartz clock synchronization mode, more accurate power-off delay is enabled , precise polarization measurement is realized , thus overcome the enlarging problem of apparent polarization error caused by large judgement error in power-off time for similar instruments.
• Automation: SCM (Single Chip Micyoco) automatically execute self-potential compensation, gain adjustment, filtering and signal enhancement.
• Time Parameter Recording: DJS-8B has auto travel time function, with measuring time stored together with measured results to facilitate the calculation of apparent resistivity.
• Extra-large Storage: 15,000 groups of measured values can be stored, no loss even in case of power failure
• Strong Anti-interference Capability: Adopt signal enhancement technology to suppress the interference a, thus highlight the effective signals.
• RS-232C serial port can work with microcomputer (PC) on-line.
• Fault Diagnosis: Fault location and damaged device can be accurately identified.

Technical Specifications

• Maximum Measuring Voltage: ±3V
• Measuring Voltage Resolution: 0.01mV
• Measuring Voltage Accuracy: ±1%, ±1 digit
• M Value Width Ratio: 1: 2: 4: 8;
• Polarizability Measurement: 0.2±1 digit at M s ≤3%; 0.1±1 digit at M s ≥3%
• Power Supply Cycle: 4, 8, 16 seconds (three kinds)
• Number of Repeated Measurements: Optional from 1 to 10
• Instrument Delay Time: 100ms ~1000ms, can be set optionally
• Suppression on 50Hz Power Frequency: better than 80dB
• Input Impedance:>30 MΩ
• Data Storage Capacity: 128KB
• Machine Working Temperature: -10°C~50°C, humidity 95%
• Volume: 240×95×240mm

DZ-2 5/10/15KW Rectifier Power Source
Technical Specifications

• Input Voltage: 220V/50Hz AC
• Voltage Allowable Fluctuation Range: -15%~+10%
• Output Voltage: 50/100/200/300/400/500/700/850/1000V
• Maximum Power Supply Current: 5/10/15A
• Maximum Output Power: 5/10/15KW
• Voltage Indication Accuracy: ±1%
• Current Indication Accuracy: ±1%
• Working Temperature: -10°C~50°C, Humidity 95%
• Weight: 45/66/98 kg
• Volume: 480×338×400mm

DMF-2 Micro-Power Detection Transmitting Device (Simulator)
Main Applications and Specifications

• Used as signal source for DJS series receiver to test the working status of receiver.
• Can be used as micro-power transmitter, or as outcrop for rock samples or field ore body (associated with receive
• Output Analog Signal: 6 taps: 3/10/30/100/300/1000mv
• Output Apparent Polarizability: 4 taps: 0% (zero polarization), 3%, 10%, 50%
• Analog Output Waveform: positive and negative square wave, duty cycle 1:1
• Cycle Selection: power supply square wave pulse width 1~15s. (Cycle: 4~6s)
• Working Temperature: -10°C~50°C, 95% RH
• Power Supply: 1# dry cell, 6 pcs.
• Volume: 225×115×90mm
• Weight: 2 kg