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www.insize.com
MN ISH- -SDM-E
IS H-SDM
SH ORE DUROMETER
OP ER ATION MAN UA L
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Function
ISH-SDM shore durometer is an instrument for measuring vulcanized
rubber and plastic products. It carries out standard of ISO868, ISO7619,
ASTMD2240, this durometer can be installed in the same model test
stand and used in the laboratory to test the standard hardness of rubber
and plastic objects. It can also be held in hand to measure the surface
hardness of rubber but plastic sample.
Specification
+0.2
Ø3
Tip stroke: 0~2.5mm
Dial Value 0~100HD:
-0.5
Ø1.25 0.15±
Available test range 10~90HA :
Test error: 1HA
Dimension 115x60x25(mm) :
Net weight 160g :
peak value
indicator
2.5 0.04±
30 1° °±
SR0.1±0.0 12
Operation
Put the sample on the stable platform, hold the shore durometer, the
tips distance to samples edge at least 12mm, press pressure feet on
the sample, without any vibrancy keep pressure feet parallel to make
the pressure feet and sample contact closely, read the value by the
maximum indicator. After read the value please back the maximum
indicator by turning the knob CCW. For one test, please test hardness 5
times with the different position which distance is 6mm and then
c hoose average value.
Operation Detials
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Before test, please check the needle is point to zero. If the needle
is not in zero, please loose the screw on up-right, and turn around
the dial make the needle to zero. Press the meter on glass board,
the needle mast in 100±1HD, if the needle not point to 100±1HD,
please Press the tip slightly for many times. If the needle can not
point to 100±1HD, the durometer can not use. If apply it on the
durometer test stand, move the handle, make the working table up to
lift the weight, make tip surface and feet surface touch to the
working table closely, the needle should point to 100± 1HD. If not
in 100±1HD, adjust screw on the working table after adjusting the
needle still not to 100± 1HD, it is better to send it to factory to
calibrate.
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Thickness of the rubber sample should not be less than 6mm, the
area of sample must be more than 35x15mm. If the thickness is
less than 6mm, please use multilayer sample congruence but not
more than three and the sample must touch totally.
Thickness of the plastic sample should not be less than 6mm, the
a rea of sample must be more than 50x15mm.
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The surface of the sample must be smooth, no defect.
After applying the durometer 35000 times, in every apply 10000
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times, it is better to check spring pressure and index scale relation
and shape size of tips accordance to the standard.
After test sample, please place the durometer into box, put it in the
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dry environment.
Please brush clean the up-down shaft and the base of working
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table, spread little against--rust oil, prevent rusting.
When apply the shore durometer, its available test range is 20HD-
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90HD, if it is below this range, suggest you to apply model A
durometer.
Test temperature should in the range of 23±5℃, the relatively humidity
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is less than 85%, in the environment of no vibrancy and no erode.
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