NOVOTEST KRC-M2 User manual

Steel Structure Analyzer NOVOTEST KRC-M2
OPERATION MANUAL
2018

Development and manufacturing of non-
destructive testing units and system
Steel Structure Analyzer
NOVOTEST KRC-M2
1
CONTENTS
1. Introduction
2. Appointment
3. Specifications
4. Packing list
5. Device design, operating principle, display and keys of the device
6. Operation
7. Measurement modes
8. Calibration
9. Technical maintenance, special conditions of operation
10. Storage and transportation
11. Manufacturer’s guarantee and service maintenance

Development and manufacturing of non-
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Steel Structure Analyzer
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1. Introduction
The following operation manual explains the preparation, setup,
principles of operation, usage, and troubleshooting of the Steel
Structure Analyzer NOVOTEST KRC-M2.
Please, read this instructions carefully for operate the Steel
Structure Analyzer NOVOTEST KRC-M2 functions quickly and
effectively.
In doing this you will be able to take full advantage of the function
range of the instrument. At the same time, you will also avoid errors
and wrong operation which in turn would cause incorrect test results
and thus could lead to injury and damage.
2. Appointment
Steel Structure Analyzer NOVOTEST KRC-M2 is designed for non-
destructive testing of chemical-thermal, thermal and
thermomechanical treatments, evaluation of mechanical properties
and residual stresses.
Steel structure analyzer is used to determination of mechanical
properties, and measurement the hardness of metal products, as
well as measurements of products from ferromagnetic alloys in the
presence of correlations between the studied parameters. In
addition, the device is used for testing the surface layer of
ferromagnetic material for grading the metal in steel grades.
Steel Structure Analyzer NOVOTEST KRC-M2 has built in Li-Ion
battery, so it is handy, easy to operate and can carry out tests

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quickly without any difficulties. Also it can be used both in
workshops and in field conditions without power electricity.
Using appropriate techniques, possible evaluation of residual life of
steel structures.
The device is designed for operation in laboratories, workshop and
field conditions at:
- ambient temperature -20 - +50 C°;
- relative humidity up to 80% at 35 C°;
- atmospheric pressure of 760 mm Hg (101,3kPa).
3. Specifications
3.1. The measuring range of the coercive force is 1,00 - 40,00 А/сm.
NOTE: Optionally measurement range of coercive force can be
changed.
3.2. Measurement accuracy of the coercive force Hc at ambient
temperature (20±5)°Сdoes not exceed ±((0,025/Нс) + 0,03).
3.3. Power supply: +12V battery.
3.4. Measurement cycle - not more than 8 seconds.
3.5. Magnetization pulse amplitude - not less than 2,0 A.
3.6. Memory store include up to 2000 measurements.
3.7. Battery life - not less than 8 hours.
3.8. Power consumption (in the magnetization mode) is not more
than 3.0 A.
3.9. Overall dimensions
Name
Overall dimensions, mm
Information processing unit with battery
170x120x38

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Probe
170х120x170
Charger
130х58x32
3.5. Weight of the instrument and probes
Name
Weight, kg
Information processing unit with battery
0,6
Probe
1,6
Charger
0,35
4. Packing list
4.1. Information processing unit 1 pc
4.2. Probe 1 pc
4.3. Charger 1 pc
4.5. USB cable 1 pc
4.6. Operation manual 1 pc
4.7. Test block 2 pcs
5. Device design, operating principle, display and keys
of the device
5.1. Device design
The design of the device includes an electronic unit and connectable
probe. Socket of the probe is at the top of the information processing
unit. The control buttons and display are located on the front panel.
5.2. Operating principle
5.2.1. The operating principle of the device is based on calculation
of the coercive force through compensation measured current of
residual magnetic induction in the closed magnetic circuit composed
of the magnetic probe and standard sample or tested object.

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Steel Structure Analyzer
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5.2.2. Cycle of measurements includes stages:
- magnetic preparation;
- compensation of residual magnetization;
- calculation of the coercive force;
- indication of the measurement result.
5.2.3. During magnetic preparation, the area of tested product which
is between the pole pieces of the magnetic system of probe, are
periodically magnetized up to saturation of current pulses with
amplitude not less 2.0 A. Then is performed an automatic
compensation of residual magnetization field. From the value of the
magnetic field compensation current is automatically calculated
value of the coercive force.
5.2.4. The probe is a magnetic system which is closed with tested
product. Null indicator of the magnetic field is a Hall sensor. There
are coils at the probe, which are used for magnetization of tested
objects and compensation the field of residual induction.
The device implements a compensation method of measurement.
When you press the "Measure" key, begins the first sub-cycle of
measurement (magnetization). Through coils is supplied
magnetizing current. In the magnetic system is appears a field with
magnetic intensity which enough for fullness magnetization of tested
product. After magnetization, starts the second subcycle of
measurement (compensation). The compensation circuit is a circuit
with negative feedback, which is consist of null indicator of magnetic
field (Hall sensor), measuring coil, amplifier and power source. The
current, which flows through the coil of demagnetization,
compensation the magnetic flux of the residual magnetization of
tested product to zero, which is monitored with the null indicator of
magnetic field. The value of current in coil of demagnetization, which
is fixing, is proportionately to the coercive force of tested area of

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object. The informational parameter is a current in the compensation
coil.
5.3. Display of the device
After switching on the device, briefly appears picture with logo on
screen:
Then, you get to the main menu of the device:
5.4. Keyboard of the device
5.4.1. The keyboard of the instrument is shown on the picture below:

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5.4.2. Keys
- Turn on/off key;
- Measure key;
- Modes switch;

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- Materials switch;
- Scale switch;
, , , , - Navigation
keys;
- Back key;
- Backspace key;
- Enter/Save key.
6. Operation
6.1. Preparation for operation
6.1.1. Operation with batteries
For switch on/off the unit press and hold the button .

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The level of the battery charging is shown on the left upper corner of
the display as a small battery icon. The green battery color means
the battery is fully charged. During discharging the battery icon
segments disappear consecutively, from left to the right. One green
segment or absence of segments means that the battery needs
recharging.
For charging the battery of electronic unit:
• disconnect the probe from the electronic unit;
• connect the charger’s connector to the connector on the side
panel of electronic unit;
• connect the charger to the mains power supply.
6.2. Preparation of the test material
The surface must be clean and free of oil, grease and dust, etc.
6.3. Connection of probe
Socket of the probe is at the top of the information processing unit.
Connect the probe cable to the NOVOTEST KRC-M2 socket in
accordance with the marks on the connector.
6.4. Device menu
After connecting the probe, hold TURN ON/OFF button until
logo appears on the display:

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Steel Structure Analyzer
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Then, you get to the main menu of the device:
The menu consists of 6 sections:
1. Measuring
2. Calibration
3. Archive
4. Settings
5. Memory card

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6. Information
Move through the menu using the navigation keys ,
, , , for entering press key .
6.4.1. Measuring
Selecting Measuring, you go to the measurement mode, depending
of selected scale of measurement.
6.4.2. Calibration

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Selecting Calibration, you go to the table of calibrations where the
scale conventionally divided into scales.
Detailed description of the calibration process.
6.4.3. Archive
Selecting Archive you go to the list of saved measurements, which
displays Measurement name, Date and time of the measurement,
Scale, Material and Average Value.

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You can store in memory up to 2 00 measurements.
Scroll through the list using the navigation keys and
.
6.4.4. Settings
Selecting Settings you go to the settings menu for configure the
following settings:

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Time:time setting.
Date:date setting.
Language: selection language of the device menu (available English
and Russian).
Brightness: setting the brightness of the display.
Palette: selection of menu themes (creation of color palette of menu
makes with special software).
Sound: there are 4 modes of device sound (Off, Key, Measurement,
Key and Measurement).
Result: displaying measurement results can be Current (display
instantaneous values of measurements) and Average (unit
accumulates the series of measurements and display average value
of hardness).

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Volume:setting the volume of the device.
Auto Off: setting of the automatic switch off device when it is not in
use.
Retro: allows you to return to the measurement mode with saved
last measurements after restarting of the device.
Navigate and select options using the navigation keys.
6.4.5. Memory Card
Selecting Memory Card you go to the menu of memory.
6.4.5.1. Create backup copies of calibrations.
After calibration of the probe is recommended to create a backup
copy of the calibration (usually the manufacturer makes the
calibration of 1-2 scales, to check the probe). This is done in order to

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Steel Structure Analyzer
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be able to resume adequate calibration after incorrect settings in the
future.
6.4.5.2. Load backup copies of calibrations.
After the initial save of calibrations you can always download it to
the probe. This function is needed for the resumption of adequate
calibration in case of wrong settings of the probe.
6.4.5.3. Clear SD card

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Clearing saved records in the archive and backup copies of
calibrations: after clearing SD card the archive will be empty and
backup copies of calibrations delete. To clean just stored archival
records - transmit saved measurements to PC with special software.
Thus backup calibrations will be unaffected.
Аt the bottom of the screen of this menu shown Memory state.
6.4.6. Information
In this menu you can view information about the manufacturer and
offices around the world.

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Scroll through the list using the navigation keys and .
6.5. Measurements
Turn on the device by pressing , and select the measurement
mode. For select the measurement mode press and chose
the mode that will be used by keys and then
press .
Presence of user
calibration

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Then select the scale and material hardness for which there is a
proper calibration.
For select the scale press and chose the scale that will be
used by keys and then press .
For select the material press and chose the material that will
be used by keys and then press .
Material
Scale
Mode