ISO7756 ASTM D1709 Digital Falling Drop Dart Impact Testing Equipment
Product Summary:
Fall darts impact tester apply to plastic film or chip which thickness less than 1mm impact by fall darts
in a given great freedom to fall, test the impact quality and energy were when 50% plastic film or chip
was damaged.
Basic Operation Steps:
System power→Choose experimental method→Estimates that initial impulse and Δm→System automatically
calculation progress→Automatic judgment whether meet the end conditions→Test results show→Print test
report→Off-test
Features:
- 2 test methods of A & B and automatic determination of testing status
- Electromagnetic suspension and automatic release of the falling dart reduce the errors caused by manual operation
- Pneumatic clamping, 2 starting modes of manual and pedal switch and built-in observation light are convenient to the user's operation
- Professional software supports multi-unit result display, graphic display of testing process and data export and printing
- Equipped with USB port and micro printer port which is convenient for data transmission and PC connection
Principle:
Before starting the test, choose test method, and estimate an initial mass and Δm. Start the test. If the first specimen fails, decrease the mass of the falling dart by Δm. If the first specimen is not a failure, increase the mass of the falling dart by Δm. Continue the test according to this rule. In brief, increase or decrease by Δm according to whether the former specimen is a failure or not. After 20 specimens, calculate the total number of failed specimens N. If N equals to 10, the test is over. If N is less than 10, add specimens and continue to test until N equals to 10. If N is greater than 10, add specimen and continue the test until the number of non-failure specimens reaches 10. Then the tester calculates the test results automatically according to specific formulas.
Standards:
This instrument conforms to various national and international standards:
ASTM D1709, ISO 7765-1-1988, JIS K7124-1, GB/T 9639.1-2008
Technical Specifications
| Specifications |
DH-BMC |
| Test Method |
Method A or Method B is optional |
| Test Range |
Method A: 50~2000 g
Method B: 300~2000 g |
| Accuracy |
0.1 g (0.1J) |
| Specimen Clamp |
Pneumatic Clamp |
| Pressure of Gas Supply |
0.6 MPa (outside of supply scope) |
| Port of Gas Supply |
Φ8 mm PU Tubing |
| Specimen Size |
> 150 mm x 150 mm |
| Power Supply |
AC 220V 50Hz |
| Net Weight |
70 kg |
| Instrument Dimension |
Method A: 500 mm (L) x 450 mm (W) x 1320 mm (H) |
| Method B: 500 mm (L) x 450 mm (W) x 2160 mm (H) |
