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Place of Origin
HS-CODE
84-
Package & Delivery Lead Time
Detailed Description
1. Introduction
It has obvious features like small, portable, intelligent analysis software, simple operation and convenient usage etc., combining with advantages of traditional geo-electrical prospecting device. It is widely concerned and applied by geological apartment and investors who are going to explore mines after its promotion in market.
Geo-electrical prospecting has long-term theory and actual basis: it applies different physical parameters variation like resistivity and polarizability to locate the ore or underground water. ADZD-6A multifunction DC resistivity prospector is recognized as one of convenient, accurate and low cost electrical resistivity meter.
2. Application:
Making using of relative parameters of apparent resistivity method and IP survey, it is widely used for searching metal ores (lead zinc ore, gold ore, manganese ore, copper ore, nickel ore, chrome ore, molybdenum ore, tungsten ore etc), non-metal ores (coal, underground water, oil, talc ore, quartz ore etc) energy source, city prospecting, railway & bridge engineering exploration, also for hydrological and engineering geological prospecting like reservoir base and flood-control dyke hidden danger location determination, geothermal investigation.
Comparing to traditional geological prospecting devices:
Traditional geological prospecting devices ADZD-6A multifunctional DC resistivity meter
Large size, the usage is not so convenient. Small volume, convenient operation.
Measured data conversion is very complex, need strong professionalism. Simple data conversion, very intelligent, the matching software can calculate automatically.
Complex operation, require good special technical knowledge. Simple, you can use it even without good special technical knowledge.
3. Main features and functions:
Small volume, light weight:
It combines a transmitter and a receiver in one single casing, you can do apparent resistivity and IP measurement simultaneously.
Multiple measuring parameters:
It can directly display first potential(Vp), SP(Vsp), current(I), apparent resistivity(Ro), apparent polarizability(Ms), half- time(Th), degree of decrement(D), degree of deviation(R) and general parameters of stimulating(Zp). It can also do relative high density resistivity measurement by matching 60 channels or 120 channels switch.
More flexible and convenient operation:
Full digital automatic measurement can do auto-compensation to SP, drift and electrode polarization. Large LED screen directly shows 14 electrode arrays when in high density measurement mode; while in ADZD-6A single mode will show 9 electrode arrays; keyboard to input array parameters; It will display resistivity, apparent polarizability, half-time curves etc. after measuring each point.
More convenient data interpretation:
It can store data of 4800 points, and each point has 22 data. Connected with RS-232 serial port, the stored data will be transmitted to PC for various digital interpretations through corresponding software.
Perfect anti-jamming technology:
Apply multilevel, signal strengthening technology and integration electrical jam suppresser performance (have super-strong anti-common-mode jam and difference mode interference ability), the accuracy is very high.
Beautiful configuration and firm:
Large screen display, film full sealing multilayer panel; interior power supply has multiple over-voltage and over-current auto-protection function to apply in various field environment. The full sealed structure has advantages of water-proof, dust-proof and long-life etc.
4. Main specifications:
Receiver
Measured voltage range: ±6V
Measured voltage resolution: 0.01mV
Measured voltage accuracy: ±1%±1LSB
Input resistance: >50MΩ
Apparent polarizability measuring accuracy: ±1%±1LSB
Current measurement range: 5A
Current measuring accuracy: ±1%±1LSB
Notch filter to 50HZ is superior to 80dB
SP compensation range: ±1V
Transmitter
Max power supply voltage: 900V
Max power supply current: 5A
Power supply pulse width: 1～59 sec. Take-up to blank ratio is 1:1
Current: ≤60mA
Others
Operating temperature: -10℃～+50 ℃, 95%RH
Storage temperature: -20℃～+60 ℃
Power supply: eight 1# batteries (or with the same scale)
Weight: <7kg
Volume: 310×210×200mm
5. Whole configuration and measurement methods:
Complete configurations (up to 10 configuration types: 4-pole Vertical Electrical Sounding, middle grads, combined profiling, 3-pole VES), measurement methods (resistivity, resistance and IP etc.), exact accuracy, strong and complete data display and storage system. The above system makes the data analysis after measurement more complete and accurate.
6. Field operation diagram:
7. Intelligent electrical analysis software:
Configure the newest version software for data receipt and format transformation, Chinese-English version electrical analysis software like GRAPHER, SURFER curves, 2D and 3D contour lines (inversion software) etc.., their operation is very simple, and they can make the prospecting results clear and direct, then give you great help in exploration and investment.
Following are curves interpretation examples in water detecting:
1. Ms (ηs), Rs (ρs) and Th (half time) curves explanation near water supply hole in Peru (as Fig1 and Fig2):
The change of Ms (ηs) curves are relative with salt content, generally surface water is electrolyte solution with low concentration. According to experiment result, when the concentration is changed to a certain degree, then it will make curves drop. But it has small effect on half time. A part of water in this hole base rock fracture is surface penetrating underground water, some is river permeation. Ms (ηs) declines at 25m, which is almost the riverbed level.
Rs (ρs) curve is for supplement materials. As physical property measured, resistance of this rock layer is varied between 80~150Ω.m. The resistance is changed upon the weathering and fracture growing degree of cranny. We can see from the curve that the main aquifer is 30~55m top sandstone fracture one, 60~90m is the weak aquifer with high resistance while no cranny growth.
From Fig3 (the deviation degree curves), we can know the hole belongs to Jurassic System Hornstone Stratum and layer sandstone fracture water. The drilling shows 30m~50m and 60m~90m are aquifer.
It indicates: when the humidity is small, then the deviation degree (r) will be big. And when the humidity is 5%~7%, the value of r reaches minimum, then increase humidity, r value will rise a little. When the humidity is increased all the time, then r will be stable. Then, when the water content is big, then r value is small, the discharging curve will be certainly direct, and the rule is irrelative with granularity. This curve is known well measurement one with 2 aquifers, the first is at 30m~55m, while the second is at 60~90m.
2. Point 89 sounding curve (actual water detecting examples)
You should do prospecting work as the shallow drilling can’t determine the well location. Then please choose a favorable place to do IP sounding, the result as Fig4, Th has no anomaly and it is low value when AB/2=100m. But deviation degree has obvious 5% extreme anomaly when AB/2=100m, and the value is lower than setting value (8%~9%), while Ms (ηs) also shows big anomaly value at this space.
3. DZD-6A DC water detector used in reservoir dam base (Fig5)
The maximum capacity of the reservoir is 636 million cubic meters, it is a comprehensive reservoir used for flood prevention, irrigation, power generation and industrial water supply. For some reasons, there is often water seepage flowing out near Stake 0+850.
In order to get the location of earth dam aquifer surface in dam, when you observe by IP and resistivity method, you should increase power supply pole space to add prospecting depth.
From Fig5, we can know there is obvious reflection on apparent resistivity (R), polarizability (M) and half time (Th) near aquifer, then it approves IP constants have different effect on aquifer (anomaly increase) and non-aquifer (normal increase).
Dam distance
(m) Pipe water level (m) Piezometer soakage depth (vertical distance to flat) m Equipment soakage depth
(vertical distance to flat) m
116 (s32) 86.79 29.73 30.00
105（s33） 84.72 20.78 21.00
93（s34） 81.25 11.75 11.50
81（s35） 78.99 2.01 2.10
78.6（s36） 77.63 0.97 1.00
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