According to: Technique Regulation of Concrete Defect Detection with Ultrasonic CECS21: 2000 Depth measurement principle When vibration energy transmits through the concrete and passes the crack, the vibrate energy will be diffracted at the point of the crack, whose diffraction angle has geometrical relationship with the crack depth. DJCS-05 crack depth measurement instrument adopts this geometrical between the diffraction angle and depth to realize high precision depth measurement. Feature and Specification Easily operation: Start measure when turn on, simply press to finish testing. Result Intuition: No wave speed test and calculate to display the crack depth directly Data processing: Data can transfer to PC, and then generate test report rapidly. Depth scale: 10-350mm Test precision: 5% Data storage: 10600 depth data Display: 4” Resolution 160*128 Power supply: 9VDC (6 AA battery) Work environment: Temperature -5~40centigrade; Humidity 85% Size: 220*180*80mm Weight: 1000g
Purpose SYQ61 concrete strength tester is used to test compressive strength of concrete by two ways: rebound and ultrasonic-rebound method. Also, it can be used to test sound time and speed in concrete. Specification Technical specification for inspection of concrete compressive strength by rebound method (JGJ/T23-2011) Technical specification for detecting strength of concrete by ultrasonic-rebound combine method (CECS02:2005) Performance 1. Multi-function for testing compressive strength of concrete. It is used to test the compressive strength of concrete by rebound method and ultrasonic-rebound method. 2. Get the compressive strength value of concrete by ultrasonic-rebound method in one instrument. It need two instruments usually, one to test sound speed in concrete, the other to test rebound value. 3. Can save test date. This is convenient for laborer data management. 4. Real USB transmission. Data can be transmitted to computer for future process and analysis. 5. Powerful data process and analysis software in windows. Test data can be export to word or excel for future process and analysis. Technical Data 1. Permissible sound time error: +/- 0.1µs 2. Sensor frequency: 50KHz 3. Rebound kinetic energy: 2.207J 4. Rebound springs Rigidity: 785.0+/-40.0(N/m) 5. Rebound bar impact length: 75.0+/- 0.3 mm 6. Rebound value permission error: =< +/-1 7. Average rebound value on Calibration anvil: 80+/-2 8. Temperature: -4°C ~ +40°C; 9. LCD screen: 160*128(10×8cm) 10. Power: 6 dry cells, work more than 10 times 11. Size: 205mm*173mm*86mm 12. Weight: 850g
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GF312V2 portable three phase multifunction watt-hour meter calibrator on-site is the newest product produced by our company by widely visiting users and referring to the advantages of the same kind of products home and abroad. The measured part of the product adopts high speed A/D transmission to send DSP to conduct digital processing, which largely improves measured degree of accuracy and stability. Central processing part adopts 32-bit ARM embedded technology to make instrument interface novel, function abundant, operation distinct and easy, and performance steady. Class of accuracy: Class 0.02, 0.05 or 0.1, range from 12A/600V or 120A/600V, with comfort design, small size and light weight. The model GF312V2 watt-hour meter calibrator is suit for electric power departments, measuring and quality examining departments and electric lab to field use.
GF312B2 portable three phase reference meter high accuracy 0.02%, with all kinds of optional clamp on ct and smart optical sampler. It can be applied in electrical laboratory or on site. it will be ensured by a combination of measures such as the use of 24bit A/D converter. APPLICATION: Power plant; Electrical laboratory; Energy meter R & D; Watt-hour meter factory; Metrological service center; Electricity power bureau & power company;
The GF302D1 three phase portable energy meter test equipment consists of an integrated three phase current source(up to 500V/120A or 500V/20A) and built-in three-phase electronic reference standard of accuracy class 0.05%. Characteristic features of the GF302D1 are its wide measuring range, high accuracy and high tolerance to unwanted external influences. The equipment offers high functionality combined with an excellent menu guided operation via built-in keyboards and colored 7" touch LCD-display. Voltage & current harmonics output from 2 to 63 times. This model portable meter test equipment can be programmable by PC, automatic generation of energy meter error test report.
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Energy meter test equipment, ct pt analyzer, relay tester, three phase standard power source, reference energy meter, electrical calibrator, power quality analyzer, power transformer test equipment, circuit breaker tester, high voltage ammeter recorder, high voltage test set, ev & recharging testing equipment, substation iec61850 test software, intelligent digital power meter and transducer, current probe & current sensor, split core ct, instrument current transformer & voltage transformer, micro ct & pt, energy meter relay parts, and handheld terminal.
