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Gold Finder Underground Water Detect Digital Electrical Resistivity
Meter
Introduction:
WDDS-2 digital Geophysical resistivity meter (hereafter also referred to as WDDS-2 mainframe
or WDDS-2 meter) is a new generation of DC resistivity equipment
which is based on a series of advanced electrical equipment of
resistivity survey, and adopts 32-bit microcontroller technology
and 24-bit A/D technology development.
Application:
1. By utlizing the apparent resistivity parameters, WDDS-2
resistivity meter is widely used in hydrology, environmental
protection, engineering geophysical exploration, metal and
non-metal mineral resources exploration.
2. This instrument applies to electrical such as vertical
electrical sounding, electrical profiling, charging method and
spontaneous potential method on ground and in trench.
Specificaiton
Model | U2516 | U2516A | U2516B | |||
Display | ||||||
Display | 4.3-inch TFT true color LCD display,Resolution: 480*272 | |||||
Display digits | 300,000 counts (Max. 6digits) | 30,000 counts (Max. 5 digits) | ||||
Full Screen | Support Easy and convenient operation and parameter display | |||||
Measuring Performance | ||||||
Basic Accuracy | 0.05% | |||||
Measuring range | 0.1mW~20MW | 1mW~3MW | 1mW~30kW | |||
Resistance Range | Resolution | Accuracy: Rd% + FS% | Resolution | Accuracy: Rd% + FS% | Resolution | Accuracy: Rd% + FS% |
30mW | 0.1mW | 0.1 + 0.015 | -- | -- | 1mW | 0.10 + 0.020 |
300mW | 1mW | 0.05 + 0.008 | 1mW | 0.05 + 0.008 | 10mW | 0.08 + 0.010 |
3W | 10mW | 0.05 + 0.003 | 10mW | 0.05 + 0.003 | 100mW | 0.05 + 0.005 |
30W | 0.1mW | 0.05 + 0.003 | 100mW | 0.05 + 0.003 | 1mW | 0.05 + 0.005 |
300W | 1mW | 0.05 + 0.003 | 1mW | 0.05 + 0.003 | 10mW | 0.05 + 0.005 |
3kW | 10mW | 0.05 + 0.003 | 10mW | 0.05 + 0.003 | 100mW | 0.05 + 0.005 |
30kW | 100mW | 0.05 + 0.005 | 100mW | 0.05 + 0.005 | 1W | 0.08 + 0.008 |
300kW | 1W | 0.05 + 0.008 | 1W | 0.05 + 0.008 | -- | -- |
3MW | 10W | 0.05 + 0.010 | 10W | 0.05 + 0.010 | -- | -- |
20MW | 100W | 0.10 + 0.025 | -- | -- | -- | -- |
Range mode | Auto, Manual | |||||
Test terminal | Four-wire, with shield | |||||
Measuring time | Fast: 25ms Med:50ms Slow: 250ms | Fast: 33ms Med: 66ms Slow: 333ms | ||||
Processing time | Calculation and data display typical time:4ms | |||||
Clearing | Short correction | Short correction | ||||
Current Mode | General, low current, impulse current | General, low current | General, low current | |||
Trigger mode | Internal, Manual, External, BUS | Internal, Manual, BUS | ||||
Average numbers | 1~255 | |||||
Measurement function | ||||||
Temperature Measurement | Standard | Option | Option | |||
Temperature compensation | Normal temperature coefficient, NTC thermistor | Option | Option | |||
Sequence acquisition | Standard | Option | NO | |||
Sorting | LO/BIN1/BIN2/BIN3/BIN4/HI | LO/IN/HI | ||||
Limit | 4 bins, absolute value/percentage/tolerance/sequence mode | 1bin, absolute value/percentage | ||||
Compare Output | LCD display/LEDdisplay/BEEP | LCD display/LEDdisplay/BEEP |
Feature:
Lightweight and flexible -- Advanced transmission and reception
functions are integrated into a small, lightweight, and the high
voltage power supply up to 200V built into the main engine (WDDS-2B
only) allows you to handle most measurements easily, usually
without carrying a bulky battery case.
Ultra-large power supply, ultra-wide range, ultra-high precision --
up to 3500W power supply capacity, ultra-wide voltage input range
of 48Vp-p voltage input range, extremely high small signal
measurement accuracy, so that the instrument can be better applied
to the high resistance area work, get deeper and better measurement
results.
Full Chinese control, powerful function -- 32-bit single-chip
microcomputer to achieve full Chinese man-machine interface and
acquisition control, acquisition parameter setting, data display
and storage, a variety of curve drawing fast and intuitive, so that
you can easily complete the field measurement work.
Up to 1GB(expandable) large capacity data storage - can store more
than 5000000 groups of measured values (including voltage, current,
apparent resistivity, spontaneous potential, etc.), power is not
lost.
USB disk format storage data - support through the USB interface to
export storage data, the instrument will be automatically
recognized by the computer as a general USB disk memory, data file
copy, cutting and other operations and ordinary USB disk is the
same, extremely convenient to
use
Pole distance table -- for all electrode arrangements, 100 groups
of different pole distance constants can be stored in advance to
the instrument memory pole distance constant table, only input a
number can be called out the corresponding pole distance constant
to use or reset, so as to avoid the same pole distance constant
repeated input may bring input errors.
Perfect anti-interference technology -- multistage filtering and
signal enhancement technology, integrated electrical interference
suppressor function (with strong resistance to common-mode
interference and differential mode interference), high measurement
accuracy.
Automatic compensation of spontaneous potential, drift and
electrode polarization, compensation range up to ±10V.
The diagnostic program can quickly and accurately determine the
fault location and the main damaged components.
Imported fully sealed box has the advantages of moisture-proof,
dust-proof and long service life.
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