Güzeltepe Mah. Mareşal Fevzi Çakmak Cad. No:116/1 Eyüp/İSTANBUL
0212 627 68 58
info@geosurvey.com.tr
We, as GEOSURVEY, dedicate ourselves to help mining and industrial projects with eco-friendly aspect. We turn the technologies, which reduces the environmental pollution, into the services in favor of sustainability and quality for natural life. We run our projects with this eco-friendly consciousness and certify the leak-tightness of the applications in an attempt not to have environmental waste, by performing final control and inspections with our professional technical team as well high-tech and certificated equipment. We enlarge the dimension of the geosynthetic products performance for your projects by providing the reasonable, fast and economical solutions.
Our vision is to be closely related to the latest technological innovations and contribute to provide the habitable environment for next generation by using high technologies.
Our mission is to give fastest feedbacks to your expectations by integrating our professional team and high technology.
We offer full services till the end, without sacrificing quality, in every step of your project with our accreditation and calibration certificated professional team and equipment in the field of supervisor services by responding American Society for Testing and Materials standards.
We provide all kind of Supervisorship and Expertise related to geosynthetics and also to control the systematical harmony by Liner Integrity test method on the completed geomembrane layer and to perform supervision and quality control test in the right place.
This method controls the integrity and non-damaged statue of the fields with completed geomembrane application according to ASTM D7953 (American Society for Testing and Materials). It detects simply and fast if there is any failure in the system by providing the quality control of enlarged leak-tightness systems in company with changing regulations.
Arc Testing Method: This test detects all 1mm holes on the geomembrane surface according to ASTM D7953, however studies show that this method can determine much smaller damages than 1mm. It is applied that a high-voltage power source sends current to geomembrane surface by means of probe fixed to a mechanism which technician can easily use. The current is consistently transferred to surface by running the probe on the geomembrane surface. It is concluded that the current makes arc with lower conducting layer by passing over the geomembrane in case of any irregularity (hole, torn, thinning etc.) on the geomembrane. At this stage, device alerts the technician by giving audio-visual signals. GEOSURVEY informs all damages detected on the scanned geomembrane surfaces to the repair crew by the means of written form and schedule. The repaired points are tested once again.
Advantages of Liner Integrity Test:
Responsibility: GEOSURVEY takes responsibility for control of field integrity along with routine test methods at the stage of geomembrane application and issues a certificate according to this. The potential damage detection, which is impossible to handle, on the black geomembrane is carried out without any problem thanks to inspection.
Low Cost: Comparing the cost of Arc (Integrity) test and the budget which is required to fund for fixing the problems because of leaks from potential damages on the geomembrane, it is obvious that the test cost is much less than repairing them.
It is practical and no installation required: This method is not required a permanent field installation. It is fast and reliable method in order to be sure if there is no damage after geomembrane application and to control the quality.
Fastness: A technician can approximately control 6.000 m2 application per day. Test duration is easily increased or decreased according to the project requirement and field condition.
We operate the progressing geosynthetic application (GCL, geomembrane, geotextile, drainage geocomposite, etc.) on your field with our experienced supervisors on behalf of you.
We carry out the tests of your geosynthetic applications on the field with our experienced team and calibration equipment.
✓ Inspection: We carry out the tests of your geosynthetic applications on the field with our experienced team and calibration equipment.
✓ Vacuum Test: According to ASTM D5641 standard, this method is applied on the repairing and reinforcement (patch) fields which is used the extrusion weld method.
✓ Air Pressure Test: According to ASTM D5820 standard, this method is used to test the sustainability for parallel twin welded fusion welding which is divided by an air channel.
✓ Welding Resistance (Tensiometer) Test: According to ASTM D4437 standard, this method is applied on the completed geomembrane panel welding or on the samples of testing welding before the main welding. It gives opportunity to show the quality result of welding resistance based on a numerical value as N/mm.
✓ Calibration procedures of all equipment in use
✓ Control of manufacturer test reports and laboratory test reporting of geosynthetic materials supplied within the scope of your project
✓ Daily logs of ongoing technical works within the scope of the project
✓ Logs of the quality control tests and final result report
✓ Leak-tightness control result report after Liner Integrity Test
Geosurvey also applies integrity test method for waterproofing buildings in accordance with the ASTM D7877 standard. Building foundation-underground wall applications and watertightness tests of high building terraces can be done quickly and safely. This method is used in areas where water testing cannot be performed. The watertightness test of applications made with synthetic and bituminous membranes, liquid membranes, spray application, HFA waterproofing systems can be performed with the integrity test method. Conductive materials such as cement-EPDM are not tested with this method. We also provide Expertise and Supervisorship services for all waterproofing tests made in the product and building types defined above. Please get information from our expert teams about which system-product groups can be tested.
Geosurvey is the regional distributor of Tinker Rasor. Please click for the products we are selling
Model: DL-1
“Leave Behind” CP Data Logger 4 Channels
Features
Included in Model DL-1 Data Logger
Software
Model: DL-1 DATA LOGGER
Use DL-1 as your “Leave Behind” CP tech, taking CP voltage reads over periods of time.
The DL-1 is a very sophisticated instrument designed to take CP voltage readings for pipe to soil measurements, depolarization, interference testing, current interruption monitoring, stray currents, tuelleric events, and more.
The Latest in Data Logging for CP Applications
Tinker & Rasor re-introduces the Model DL-1 Data Logger. The all new DL-1 is still a four channel, leave behind data logger, but with many new features and improvements.
1 mV resolution, USB communication, new software.
The new DL-1 as double the memory, a major increase in processing power, better resolution and now has USB communication with the computer.
Other features include a rechargeable Li battery, new gasket and end caps for better resistance to water intrusion, Power button and more LEDs for more information.
The new TRAC4 software is easier to use and offers better tools for analyzing data than its predecessor. New features include the ability to graph only selected data from the Data View, graph only selected channels, and more.
The USB cable makes connecting a DL-1 unit to the computer much easier and the download speed of recorded data is lightning fast!
TRAC4 Software Included!
Your new computer doesn't have a CD/DVD drive?
No worries as the TRAC-4 Software can be downloaded online!
Model: DL-1 DATA LOGGER
Model: DL-1 DATA LOGGER
Electrical & Mechanical Specifications
| INPUTS | |
| Analog | 4 Analog Channels |
| Input Voltage Range | +/-5v ch 1 &2, 0.5 - 150 VRMS ch 3, +/- 100v TrueView |
| Resolution | 1mV ch 1 &2, 500mV ch 3 & 4 |
| Input Impedance | 200+ Meg Ohms |
| Sampling Frequency | Fast as 1 KHz, Slow as 1/99 min. (All channels) |
| DATA STORAGE | 1,000,000 samples (with Time & Date stamp) |
| Recording Duration | 0.001 seconds to years |
| Data Memory Battery Life (backup) | 10 years |
| POWER SUPPLY | |
| Voltage | 8.4v battery (Li-Ion -type) |
| Current | 43mV |
| Standby | 1.7mV |
| Battery Life | up to one (1) Month |
| Operating Temperature | -15 to 55 degrees Celsius |
| Storage Temperature | -15 to 55 degrees Celsius |
| Communication | USB Interface |
| Dimensions - Instrument | 1.5" x 1.5" x 10.25" (38.1 mm x 38.1 mm x 260.35 mm) |
| Weight - Instrument | 10 oz. (283g) |
| Channel Specifications | Power Source |
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Model: DL-1 DATA LOGGER
Accessories Available:
