Nitronic HRC3070 User manual

Nitronic
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Nitronic
AG
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Mattenstrasse 11
CH – 2555 Brügg Tel. [phone]
Switzerland
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[phone]
Hardness Measuring
Hardness MeasuringHardness Measuring
Hardness Measuring
Device
DeviceDevice
Device HRC3070
HRC3070HRC3070
HRC3070
Operating Instructions
Operating InstructionsOperating Instructions
Operating Instructions
Edition V2.0
Please read these instructions carefully, before operating.

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AG
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AG
Mattenstrasse 11
CH – 2555 Brügg Tel. [phone]
Switzerland
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General
GeneralGeneral
General
Thank you for choosing the Nitronic HRC 3070
Nitronic HRC 3070Nitronic HRC 3070
Nitronic HRC 3070.
To obtain the best possible performance, please read these operating instructions carefully. All claims under
the warranty will become void in the event of damage caused by failure to comply with the instructions or
opening the Nitronic HRC 3070
Nitronic HRC 3070Nitronic HRC 3070
Nitronic HRC 3070. We accept no responsibility for consequential damages.
Contents
ContentsContents
Contents
General........................................................................2
Contents......................................................................2
Product description ..................................................3
Commissioning...........................................................3
Operation ....................................................................4
Working area.........................................................5
Fault causes ...............................................................5
Test workpiece faults ..........................................5
Penetrator faults...................................................5
Device faults..........................................................6
Operational faults .................................................6
Technical Data...........................................................6
Replacement parts, options ....................................7
Replacement parts ...............................................7
Options....................................................................7
Materials and hardness values ..............................7

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Mattenstrasse 11
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Switzerland
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Produ
ProduProdu
Product description
ct descriptionct description
ct description
The Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 is a very lightweight, easily portable hardness measuring device for measuring
hardness in any location. It is ideal for mobile use in the field, where fast, accurate hardness readings are
essential.
The Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 functions according to the reboun
rebounreboun
rebound method
d methodd method
d method, a dynamic hardness measurement
technique. An impact body (hard metal ball) is propelled against the surface to be tested by spring force.
The measurement value is the loss of speed between the impact and rebound of the penetrator. The loss
of speed is directly related to hardness taking account of the mass and surface quality of the workpiece.
The rebound method provides a high degree of precision and reproducibility of the measurement, and thus
also high testing reliability. The following is a brief overview:
•Large measurement range
•Measurement possible in difficult-to-access positions
•High degree of accuracy +/- 1 HRC
•Direct display of hardness values in HRC
HRCHRC
HRC
•Automatic switching on and off
•Simple handling and low testing cost
•Suitable for metallic materials
•For workpieces that are heavy or already fitted
Commissioning
CommissioningCommissioning
Commissioning
When using the Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 for the first time or after an extended period of non-use (longer than three
months) insert batteries according to the polarity indicated.
•Twist screw cap (1) counterclockwise to unscrew and remove (Fig. 1).
To prevent consequential damage the
Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 must never be opened
at the position marked (Fig. 1)
1
Fig.
1
Removing the screw cap

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•Insert batteries in the screw cap (1) according to the polarity indicated and tighten screw cap (1) again by
twisting clockwise (Fig. 2).
If the Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 is not going to be used for an extended period, take out the batteries to
prevent damage due to battery leakage.
Operation
OperationOperation
Operation
•Slide lock (2) back as far as it will go (Fig. 3).
•Place the Nitronic HRC 3070
Nitronic HRC 3070Nitronic HRC 3070
Nitronic HRC 3070 with the tip (3) on the material to be tested and press down on lock (2) to
trigger the impact (Fig. 4).
•Read off the hardness value in HRC
HRCHRC
HRC and take three to five further measurements to obtain an average
(Fig. 5).
To prevent contamination the Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 must only be stored with the spring tension released.
1
+
+
Fig. 2 Inserting the batteries
2
Fig. 3 Loading the HRC3070
2
3
Fig. 4 Triggering the impact
Fig. 5 Hardness valuet

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Mattenstrasse 11
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Working area
Working areaWorking area
Working area
In order to obtain very precise measurements, the Nitronic
NitronicNitronic
Nitronic HRC 3070
HRC 3070HRC 3070
HRC 3070 must be kept completely still
during the triggering process. The angle of inclination of the test piece must be no greater than 30°
30°30°
30°.
The weight of the workpiece is very important in the dynamic measurement procedure. It should weigh at
least 5 kg. Workpieces weighing less than 5 kg must be placed on a solid support. Small parts (0.1kg) should
also be stuck to the solid support with paste adhesive
F
FF
Fault causes
ault causesault causes
ault causes
Measurement surface must be absolutely free from oil and grease.
Test
TestTest
Test workpiece
workpieceworkpiece
workpiece faults
faultsfaults
faults
Malfunction
MalfunctionMalfunction
Malfunction
D
DD
D
iagnos
iagnosiagnos
iagnos
is
isis
is
Remedy
RemedyRemedy
Remedy
Results scattered
Measuring surface dirty or pitted
Uneven measuring surface
Clean, or polish surface.
Polish seating surface, rectify unevenness
Results extremely
scattered
Test workpiece is too light or is
deflected
Measurement surface is porous or
spongy
Stick to a solid support with paste adhesive.
Polish surface.
Penetrator faults
Penetrator faultsPenetrator faults
Penetrator faults
Malfunction
MalfunctionMalfunction
Malfunction
Diagnosis
DiagnosisDiagnosis
Diagnosis
Remedy
RemedyRemedy
Remedy
False measurement
results
Indenter ball
(penetrator) flattened
Replace the impact body (by
Nitronic
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Nitronic
Representative)
Indenter ball dirty
Clean the indenter ball
Fig. 6 Inclination max.30°

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Mattenstrasse 11
CH – 2555 Brügg Tel. [phone]
Switzerland
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Device faults
Malfunction
MalfunctionMalfunction
Malfunction
Diagnosis
DiagnosisDiagnosis
Diagnosis
Remedy
RemedyRemedy
Remedy
False measurement
results
Bearing
surface (3) pitted, dirty or
dented
Protect bearing surface from damage. Clean
and carefully smooth out pitting, if necessary
with an oil stone.
Display dimly
Batteries too weak
Replace batteries
Operational faults
Operational faultsOperational faults
Operational faults
Malfunction
MalfunctionMalfunction
Malfunction
Diagnosis
DiagnosisDiagnosis
Diagnosis
Remedy
RemedyRemedy
Remedy
False
measurement
results.
Indentation too close to the edge.
Distance = 5 times the diameter of the
indentation
Hardness value too
high
Indentations too close together
Distance = 5 times the diameter of the
indentation
Deviation of ACTUAL
- SET value results
Test surface inclined more than 30°
Select test surface with inclination less than
30°
Measurement results
scattered
Careless triggering or lateral shifting
during the measurement process
Carry out triggering slowly and in a controlled
way
Technical Data
Technical DataTechnical Data
Technical Data
Hardness scale HRC
Indenter ball Hard metal
Accuracy +/- 1HRC
Measurement range 20-70 HRC
Min. weight of the workpiece 2kg on solid support
0,1kg with paste adhesive
Min. thickness of the workpiece 3 mm with paste adhesive
Min. hardness depth 1 mm
Power supply batteries 2x1.5V button cell
Ambient temperature 10°C to 30°C
Dimensions Length 138mm
Diameter 12mm
Weight 36g
We reserve the right to make technical changes at any time.
We reserve the right to make technical changes at any time.We reserve the right to make technical changes at any time.
We reserve the right to make technical changes at any time.

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AG
Mattenstrasse 11
CH – 2555 Brügg Tel. [phone]
Switzerland
Fax
[phone]
Replacement parts
Replacement partsReplacement parts
Replacement parts,
,,
, o
oo
option
ptionption
ptions
ss
s
Replacement parts
Replacement partsReplacement parts
Replacement parts
Quantity
QuantityQuantity
Quantity
Description
DescriptionDescription
Description
Art. Number
Art. NumberArt. Number
Art. Number
1
Carrying case
010064
1
Locking button without c
lip
010029
1
Batter
y
1.5V
V394
010032
1
O
-
r
ing
010310
1
Sealing cap
010038
Option
OptionOption
Options
ss
s
Quantity
QuantityQuantity
Quantity
Description
DescriptionDescription
Description
Art. Number
Art. NumberArt. Number
Art. Number
1
Paste adhesive
010376
1
Locking button with
c
lip
010030
1
Adapter
for sheet metal measur
e
ment
010375
Materials and hardness values
Materials and hardness valuesMaterials and hardness values
Materials and hardness values
Material
MaterialMaterial
Material HRC
HRCHRC
HRC
Steel and cast iron 20 – 68
Tool steel 20 – 68
Stainless steel 20 – 62