3
CONTENTS
Page
1. Purpose .............................................................................. 4
2. Technical specifications ..................................................... 5
3. Device and principle of operation....................................... 7
4. Safety instructions............................................................ 13
5. Preparing the metal stress indicator for work .................... 13
6. Operating procedure......................................................... 14
6.1. Measuring the mechanical stress of metal of steel parts
and metal structures .......................................................... 14
6.2. Measuring the tension of steel studs and bolts ............ 15
6.3. Charging or replacing the battery................................ 16
7. Maintenance service......................................................... 19
8. Troubleshooting ............................................................... 20
9. Transportation and storage rules....................................... 22
Appendix. Mechanical and magnetic parameters of frequently
arrived Russian grades of structural steels ............................ 23
4
This operating manual allows you to acquaint you with
the device and operation of the IN-01m metal mechanical
stress indicator (hereinafter referred to as the stress indicator)
and sets the rules for its operation, transportation and storage,
compliance with which ensures that it is maintained in
constant readiness for operation.
1. PURPOSE
1.1. The IN-01m metal mechanical stress indicator is
intended for indirect estimation of the value of the metal
mechanical stress of a local section of a steel product or a
metal structure made of structural steel by the value of the
field strength of the residual magnetization of the metal.
1.2. The stress indicator can also be used to measure
the tightening force of steel studs and bolts of housing
equipment.
1.3. The stress indicator can be used in field, workshop
and laboratory conditions.
1.4. Sources of electromagnetic industrial interference
must be removed from the stress indicator at a distance of at
least 3 m.
1.5. Degree of protection against penetration of solids
and water for the stress indicator IP41 according to GOST
14254-80.
1.6. Display of measurement results are digital in units
of the measured value of the field strength of the residual
magnetization of the metal (mT), or the mechanical stress of
the metal (MPa).
1.7.
Indication
of
readouts
is
liquid
crystal
alphanumeric display with backlight for working in conditions
the natural environment lighting is not enough.
