ZK-450K digital high-strength rebound tester

ZK-450K Digital High Strength Rebound Tester Application Industry

Used for structural engineering high-rise building components, bridges, and concrete components (plates, beams, columns, bridges), usually suitable for compressive strength testing of concrete with strength grades C50~C100

Features

Built in Bluetooth chip, can connect to mobile app to upload rebound data in real time;

Optional Bluetooth printer, on-site printing of original records and test results

2.8-inch touch LCD screen, diversified input methods, simple interface, easy to operate

Support remote upgrades, synchronize industry standard updates with curves, and can be customized exclusively for users;

PC one-on-one analysis software, easy to process data result analysis and generate detection reports

According to the standard

GB/T 9138-2015 "Rebound Tester"

JJG 817-2011 "Rebound Tester" Verification Regulations

JGJT 294-2013 "Technical Regulations for Strength Testing of High Strength Concrete"

Industry and Some Local Regulations Strength Testing Compressive Strength Range: Industry Standard: 20-110MPa

Chongqing Standard: 50-80MPa

Technical specifications

Data acquisition instrument

Input method: touch, button

Input method: Chinese, English

Data processing: automatic data correction, calculation, statistical analysis according to specifications

Display method: 2.8-inch touch LCD screen (400 × 240 pixels)

System capacity: 1000 components, with a large measurement area of 100

Power supply method: rechargeable, built-in 3200mAh high-capacity lithium battery

Automatic shutdown: can be set to a larger 120min

Mechanical rebound tester

Sensor lifespan: over 200000 cycles

Strength measurement range: 50~100MPa

Nominal kinetic energy: 4.5J

Spring stiffness: 900 ± 40N/m

Impact hammer stroke: 100 ± 0.3mm

Pointer friction force: 0.65 ± 0.15N

Spring tension length: 100 ± 0.5mm

Spring working length: 106 ± 0.5mm

Spherical radius at the end of the impact rod: 35 ± 1.0mm

Consistency error of indication: ≤± 1 (difference between mechanical rebound gauge pointer reading and instrument screen reading)

Steel drill calibration rebound value: 88 ± 2

Industry and some local regulations for strength testing compressive strength range: Industry standard: 20-110MPa; Chongqing standard: 50-80MPa