4 TI-BA-e-2020
4 Operation
The hardness tester is screwed to the mountingdevice on the test stand. The hardness
test block is placed on the glass plate. Then the operating lever is pressed down,
keeping the balance, topush the tip of the hardness tester into the hole in the hardness
block until it is completely resting on the hardness block (the foot of the instrument is
completely touching the hardness block).
At this time, the hardness value on the reading scale should be within ± 1 of the value
engraved on the hardness block (lower side). If the value is not 100±1, the adjusting
nut under the glass plate must be turned in such a way that the value reaches 100±1.
If the hardness tester is used without a hardness test block, the operating lever must
also be pressed down in equilibrium until the foot of the test tip is completely in contact
with the glass plate. Here the hardness value on the reading scale should also be
within 100±1. If this is not the case, the adjusting nut must also be turned until this
preset value is reached.
Then the material to be tested is placed on the glass plate. The operating lever is to
be pressed down carefully under force of the indicated weight. When the hardness
tester touches the test material completely, the value appears on the reading scale.
The reading time for thermoplastic rubber is 15 seconds, for vulcanized rubber or other
unknown types of rubber it is 3 seconds.
5 Note
1. this test stand can only be used for Shore hardness testers If it is used for other
hardness testers, the weight must first be adjusted according to the requirements.
GB/T531.1-2008 has established a rule on this, as shown below:
#
Attention: All components must be adjusted to each other to ensure error-free
operation.
2. the test bench should only be used in a vibration-free environment The maximum
print speed during the test should be 3.2mm/s.
6 Maintenance
To avoid rust, the test bench should be cleaned with a soft cloth after each use.
Under no circumstances should aggressive cleaning agents be used.