DZD-6A Multi-Function DC Resistivity & IP Instruments

 Main Applications

• By utilizing relevant parameters of apparent      resistivity and induced polarization method, the instrument is widely      used in many aspects including metal and non-metal mineral resources      exploration, energy exploration, city geophysical exploration, railway and bridge      engineering exploration, etc.

• Search for groundwater, solve the human and animal drinking water      issue as well as industrial and agricultural water issue. Determine the      hidden safety risk location in reservoir dam foundation and flood-control      dyke, find faultage zone and collapse column, landslides, coal mining      goaf, search for geothermal and other hydrological, engineering geological      exploration.

• Accessories made by our factory with 60-channel or 120-channel      multiplex electrode switch, also can be used for multi-electrode      resistivity survey system.

Technical Specifications

Receiving Part

• Measuring Voltage Range: -6000mV~+6000mV

• Measuring Voltage Resolution: 0.01 mV

• Measuring Voltage Accuracy: (at Vp>10mV)±5%, ±1 digit; (at      Vp<10mV)±1%, ±1 digit

• Measured Apparent Polarizability Accuracy: ±1%, ±1 digit

• Measuring Current Range: 0~5000 mA

• Measuring Current Resolution: 0.01 mA

• Measuring Current Accuracy: (at Ip>10mA)±5%, ±1 digit; (at      Ip<10mA)±1%, ± digit

• Input Impedance: ≥50MΩ

• Interference Suppression on 50Hz Power Frequency: Better than 80dB

Transmitter Part

• Maximum Transmitting Power: 4500 W

• Maximum Power Supply Voltage 900V

• Maximum Power Supply Current: 5A

• Instrument has over-voltage and over-current protection devices

• Power Pulse Width: 1-60 seconds, Duty Cycle 1:1

Others Parameter

• Working Temperature: -10℃to +50℃, 95%Rh

• Storage Temperature: 20℃ to +60℃

• Power Supply: 1# Dry Cell (or rechargeable battery with the same      specification) 8 pcs

• Machine Current: < 55 mA

• Weight: 8 kg

• Volume: 305×200×202 mm

Main Features

• Multiple functions in One Machine: The instrument has three functions      including long lead IP instrument, master of 2D resistivity imaging      system, and medium-power short lead transmitting.

• Small-sized, Light in weight: The instrument integrates receiver and      transmitter together in the same cabinet, which can be used for      measurement via apparent resistivity method and induced polarization      method.

• Various Measurement Parameters: Instrument can be applied in direct      measurement and indication of primary potential Vp, spontaneous potential      Vsp, power supply current I, apparent resistivity Ro, apparent polarizability      Ms, half-decay time Th, degree of decay D, integrated IP parameters Zp,      and degree of deviation R.

• More flexible and convenient operating mode: Adopt all-digital      automatic measurement, can execute automatic compensation for spontaneous      potential, drift and electrode polarization. Use large screen LCD display,      can directly display the arrangement of nine electrodes; directly input      into pole arranging parameters with keyboard; measuring resistivity curve      apparent polarizability curve, half-decay curve, etc. can be displayed      directly when measurement of measuring point completes,

• Data Interpretation is more convenient: The instrument can measure      points on 4,800 survey data for storage. Each measuring point has 22 data,      with RS-232 serial interface, through appropriate software the stored data      can be directly transfer to the computer for digital interpretation of      various methods.

• Beautiful Instrument Apparent, Strong Structured: The aluminum      chassis effectively enhance the electromagnetic shielding; adopts      thin-film multi-layer sealed touch panel; multiple over-voltage,      over-current automatic protection are set for internal power supply part,      allowing the instrument to be suitable for various types of field      environment.