KERN & SOHN HN-D - Manual (Page 5)

Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [email protected] Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Instruction Manual
HN-D
HN-D-BA-e-1213 5
5.6 Automatic Shut-Off
If there is no measurement performed and no key
operation takes place for 3 minutes, the display unit will
automatically switch off in order to saving battery power.
All the parameters will be automatically stored before
turning off.
5.7 Charging
Batteries have to be recharged when they are used for the
first time or an exhaustion of electricity arises. First the
HN-D has to be connected with the charger by using the
USB cable, then the charger has to be connected with the
AC socket to start charging.
Meanwhile the screen will display the charging mode:
There can also be used other USB devices (e.g. Laptop) to
charge the HN-D. Charging time is 2 to 3 hours.
If charging is finished, the following is displayed on the
screen:
6. Data Printing
HN-D can be linked with the exclusive Bluetooth Mini
printer to print out the measured values. The maximum
distance between the hardness tester and the printer is
three meters. When the printer is turned on, has to be
pressed to print out the current data.
Der HN-D kann mit dem optional erhältlichen Bluetooth
Minidrucker verbunden werden, um die Messdaten
auszudrucken. Der maximale Abstand zwischen HN-D und
dem Minidrucker beträgt drei Meter. Ist der Drucker
angeschaltet, so ist nur die Taste zu betätigen, um die
laufenden Messdaten auszudrucken.
Mini Printer SAUTER AHN-01,
www.sauter.eu
A complete test report is shown below:
7. Hardness Testing
7.1 Checking of Settings
The button has to be pressed to turn on the
instrument. First, it has to be checked if it has to be
charged. Then, it has to be inspected if every setting is
correctly, particularly material type and scale. If the setting
is inconsistent with the actual conditions, a great error
might be caused.
7.2 Sample Preparation
Inappropriate samples will cause great measurement
errors. Therefore, preparation and handling should be
performed on original conditions of the sample.
Preparation of the sample and the surface to test should
be coincident with the following basic requirements:
1) A thermal or cold processing of the impact sensors
during the process of sample preparation should be
avoided.
2) The surface of the sample should be plane, with a
metallic sheen, and not involve oxide layer or other stains.
3) Roughness of the test surface: Ra≤ 1.6
4) The sample has to be of sufficient quality and rigidity.
Otherwise displacements or shaking during the test might
happen. These could also lead to measurement errors.
A sample quality of ≥ 5 kg can be directly tested. If the
sample quality is 2~5 kg, it should be fixed before the test
by appropriate clamps. If the sample quality is 0.05~2 kg, it
should be coupled before the test; if it is < 0.05 kg, this
hardness tester is inappropriate to use.
Coupling method: The testing sample’s back should be
plane as well as the surface of the supporting object.