Specification:
Technical code for testing of building foundation piles JGJ 106-2003
Technical specification of Dynamic pile tests for Highway Engineering JTG/TF81-01-2004
Technical specification for inspection of concrete defects by ultrasonic method CECS21:2000
Technical specification for detecting strength of concrete by ultrasonic-rebound combine method CECS 02:2005
Code for investigation of geotechnical GB50021-2001
Purpose
Testing of building foundation piles by cross-hole sonic logging;
Inspection of concrete defects by ultrasonic method, such as uncompacted, cellular, hole area.
Detecting strength of concrete by ultrasonic-rebound combine method
Detecting strength of concrete crevice by ultrasonic-rebound combine method
Detecting defects of one hole by one trigger two receives
Testing dynamic performance of geotechnical investigation, rock, concrete etc
Performance
High efficiency testing. Lifting speed is more than 60m/s(point distance:20cm)
Display the test data graphically. User can watch analyzed result directly
Fast and precise automatic judge the sound parameters. Real-time wave display assures test efficiency
Humanized software design. Software design applies to user and construction plant. Its help information ensure user handle easily
Link the rebound apparatus directly. Detect strength of concrete by ultrasonic-rebound combine method with linking rebound apparatus directly, and get strength of concrete in time. The function has applied for national patent
Being sensitive to receive signal. Can receive signal more than 10m in concrete without defects
Can supply smooth power to radial energy transducer without external power
Standard USB storage with big capacity
Interior lithium battery supplies power for apparatus working more than 6 hours
Portable, small, light apparatus (1.75kg)
Extending function: testing thickness of concrete by impacting echo method.
Professional and powerful Windows system analysis software. It can export the data to Excel or Word for advanced analysis
Technical data
Item Specification
Main control unit High-performance embedded computer
Input method keyboard
Interface USB
Receive channel Two
Transmission mode Continuous and external
Receive sensitivity =30uv
Amplifier bandwidth 10kHz to 300kHz
Sound time accuracy 0.05us
Display 640*480 high brightness TFT panel
Storage 1G(Interior) 2G(U-Disk)
Max sample data length 64k
Trigger voltage 65,125,250,500,10
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AC to DC converter battery charger 150-1000VDC rectifier 120KW power supply Product Introductionï¼? SANDI AC/DC Charger is specially developed for DC chargers. It has high efficiency, high power factor, high power density, high reliability advantage. AC input 3 phase, DC output voltage range from 150 to 1000VDC can be set, compliant with CE safety requirements, EMC standard EN61000-6-3 and EN61000-6-1 Class A, it is an advanced international level charger. Unique function High efficiency over the full load range, full load efficiency greater than 95% Wide output voltage range, 150-1000VDC, suitable for a wide range of Lithium or lead acid battery 5-inch LCD touch screen, easy to operate Flexible application, charging voltage, charging current, charging time, timing charging can be set by LCD screen, easy to operate Main featuresï¼? Powerful protection, overheating, short circuit, overload, overvoltage, undervoltage, etc. Wide input voltage range: 260~ 530Vac, adaptable to various power grid environments Three-phase AC input without neutral wire: Simplifies system design, eliminates the risk of excessive neutral current, and reduces system costs. Dual DSP design, achieve the full digital control, less components means high reliability Wide input voltage range, allows operation in most poor grid conditions Battery anti backflow: effectively protects the battery while ensuring reliable and safe operation of the system Input, output have protective circuit breaker switch Module adopts hot pluggable design, which is convenient for maintenance. RS485 interface (Optional)
SANDI SERIES charging module is for electric vehicle charging station. With single-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. Functional details 1. Hot plug Plug technology is applied to the charging module to provide convenience for installation and maintenance. The access of the charging module to the system shall not disturb the output voltage of the system. 2. Advanced current sharing technology Under constant voltage working mode, the charging modules can share current automatically within 10S, with degree of unbalance less than �±0.5A. 3. Control of input limited power Refer to Fig. 1-10 for the relation between the output power and input voltage of the charging module. When the input voltage is within 360 Vac ~ 450 Vac (return difference is less than 5V), the module can output the maximum power of 20 KW; when the input voltage is within 260 Vac ~ 320 Vac, the module can still work normally under limited power mode. 4. Control of output constant power When there is a rated input voltage, the output power of the module is 20 KW. Refer to Fig. 11 for the relation between the output voltage and the output current of the module. The SD75050 module uses two operating modes with output voltage ranges of 50 to 750V. The module only selects the operating mode based on the value of the received demand voltage, and does not select the operating mode based on the actual output voltage. 5. Temperature limited power 6. Regulation of output current limiting point 8. Regulation of output voltage The output voltage of the module can be regulated constantly through the external monitoring module, with regulation range of 50Vdc ~ 750Vdc and minimum regulation step of 0.1 Vdc. 9. Fan control The built-in processor of the module can regulate the speed of the fan according to the internal temperature and output current of the module. 10. Protection of input overvoltage/ voltage shortage 11. Output overvoltage protection The overvoltage protection point is 260Vdc ~770Vdc (�±10 Vdc). Default is 778Vdc.The module can be started after manual intervention upon overvoltage protection. 12. Over-temperature protection The environmental over-temperature protection point is 80�°C. When the DC panel has a temperature over 100�°C, the module will stop working; when the DC panel has a temperature below 90�°C, the module will automatically work again. 13. Protection of internal bus fault When the internal bus voltage of the module is beyond the overvoltage/ voltage shortage protection point, the module will be powered off automatically. At this time, there is no output from the module and the fault indicator light is on. 14. Short circuit protection In case of short circuit of the module, it will be subjected to protective shutdown and the red indicator light of the panel is on, and this condition will be transmitted to the monitor of the "module fault".