86416-22111.ru.en

Translated from Russian to English - www.onlinedoctranslator.com
APPROVED
by order of the Federal Agency
for Technical Regulation
and metrology
dated August 16, 2022 No. 2022
Registration No. 86416-22
Sheet No. 1
Total sheets 6
DESCRIPTION OF MEASURING INSTRUMENT TYPE
Bently Nevada accelerometers
Purpose of the measuring instrument
Bently Nevada accelerometers (hereinafter referred to as accelerometers) are designed to measure
vibration acceleration and vibration velocity.
Description of the measuring instrument
Accelerometers are inertial-type transducers that use a direct piezoelectric effect, as
a result of which a mechanical effect on the accelerometer causes the generation of a
charge proportional to the vibration acceleration of the accelerometer base. The electrical
charge of the sensing element is proportional to the acceleration acting on the
accelerometer.
Bently Nevada accelerometers are available in the following modifications: 200150,
200155, 200157, 200350, 200355, 330400, 330425, 330450 and 350900, which differ in
design, measurement range and operating frequency range.
Structurally, accelerometers of modifications 200150, 200155, 200157, 200350, 200355,
330400 and 330425 consist of a sensing element and an electronic unit, made in a single
housing. The design of accelerometers of modifications 330450 and 350900 provides for the
separation of the housings of the sensitive element and the electronics unit. Accelerometers of
modification 350900 have a built-in integrator, which allows them to measure both vibration
acceleration and vibration velocity.
A general view of Bently Nevada accelerometers is shown in Figure 1.
Factory numbers of accelerometers in alphanumeric format are applied to the body by
engraving. The application of a verification mark to the measuring instrument is not provided.
Sealing of accelerometers is not provided.
Sheet No. 2
Total sheets 6
200150, 200155, 200157
330450
200350, 200355
330400, 330425
350900
Figure 1 – General view of Bently Nevada accelerometers
Sheet No. 3
Total sheets 6
Metrological and technical characteristics
Table 1
Characteristic name
Vibration acceleration measurement range, m/s2
Operating frequency range, Hz
Nominal value of the conversion
coefficient, mV/(m s-2)
Limits of the permissible main deviation
of the conversion coefficient from the
nominal value, %
Nonlinearity of the amplitude
characteristic, %
Uneven frequency
response, %
Relative transverse conversion
coefficient, %, no more
Limits of permissible additional deviation
of the conversion coefficient from the
nominal value caused by changes in
ambient temperature, %
Meaning
200150
200155
from 1 to 245
from 1 to 196
from 1 to 245
from 10 to 1000
from 1.5 to 10000
from 10 to 10000
10.2
±12
±2
±10
7
±5
Normal measurement conditions:
- ambient temperature, °C
Operating operating conditions:
- ambient temperature, °C
Weight, g, no more
Overall dimensions, (diameter×height),
mm, no more
200157
from +15 to +25
-40 to +105
58
17.5×45.7
Sheet No. 4
Total sheets 6
table 2
Characteristic name
Measuring range
vibration acceleration, m/s2
Operating frequency range, Hz
Nominal value
conversion coefficient, mV/(m
s-2)
Limits of permissible main
deviation of the coefficient
conversion from nominal value,
%
Meaning
200350
200355
300400
330425
from 1 to 490
from 1 to 490
from 1 to 490
from 1 to 735
from 0.5 to
from 0.2 to
from 10 to
from 10 to
10000
10000
15000
15000
10.2
±20
±5
Nonlinearity of the amplitude
characteristic, %
±5
±5
±1
Frequency response
unevenness, dB
Relative transverse conversion
coefficient, %, no more
Limits of permissible
additional deviation of the
conversion coefficient from the
nominal value caused by
temperature changes
environment,%
2.5
±3
±5
from -16 to 12
from -11 to 3
Normal measurement conditions:
- ambient temperature, °C
from +15 to +25
Operating operating conditions:
- ambient temperature, °C
Weight, g, no more
Dimensions,
(diameter×height), mm, no more
-54 to +121
51
94
99
99
18×42.2
22×52.3
22×59
22×59
Sheet No. 5
Total sheets 6
Table 3
Characteristic name
Vibration acceleration measurement range, m/s2
Vibration velocity measurement range, mm/s
Meaning
330450
350900
from 1 to 785
from 1 to 4900
-
from 1 to 1270
Operating frequency range for measuring
vibration acceleration, Hz
Operating frequency range for measuring
vibration velocity, Hz
Nominal values of conversion
factor:
mV/(m s-2)
mV/(mm s-1)
Limits of the permissible main deviation
of the conversion coefficient from the
nominal value, %
Nonlinearity of the amplitude
characteristic, %
Frequency response
unevenness, dB
Relative transverse conversion
coefficient, %, no more
Limits of permissible additional deviation
of the conversion coefficient from the
nominal value caused by changes in
ambient temperature, %
from 15 to 10000
from 10 to 10000
-
from 25 to 2000
10.2
-
10.2
3.94
±5
±2
±1
±3
±10
5
±15
Normal measurement conditions:
- ambient temperature, °C
Operating temperature range, °C:
- sensitive element
- preamplifier
Weight, g, no more
Overall dimensions, (diameter×height),
mm, no more:
- sensitive element
- preamplifier
from +15 to +25
-55 to +400
-55 to +121
1111
-54 to +482
-54 to +125
546
25.4×34.9
33.4×152.1
42.88×44.45
30.48×74.63
Type approval mark
applied to the title page of the instruction manual by printing.
Completeness of the measuring instrument
Table 4 – Complete set of measuring instrument
Name
Bently Nevada accelerometer
Manual
Quantity
1 PC.
1 copy
Sheet No. 6
Total sheets 6
Information about measurement techniques (methods)
See Section 2, Installation, of the Bently Nevada Accelerometers instruction manual.
Manual".
Regulatory and technical documents establishing requirements for measuring
instruments
Order of the Federal Agency for Technical Regulation and Metrology dated December 27,
2018 No. 2772 “On approval of the state verification scheme for measuring instruments of vibration
displacement, vibration velocity, vibration acceleration and angular acceleration”;
Manufacturer's technical documentation.
Copyright holder
Bently Nevada, LLC, USA
Address: 1631 Bently Parkway South Minden, Nevada 89423, USA
Phone: +1 775 782 3611
Fax: +1 775 215 2876
Website: www.ge-mcs.com/bently-nevada
Manufacturer
Bently Nevada, LLC, USA
Address: 1631 Bently Parkway South Minden, Nevada 89423, USA
Phone: +1 775 782 3611
Fax: +1 775 215 2876
Website: www.ge-mcs.com/bently-nevada
Testing center
Federal State Budgetary Institution "All-Russian Scientific Research Institute of
Metrological Service" (FGBU "VNIIMS")
Address: 119361, Moscow, st. Ozernaya, 46
Phone/fax: (495)437-55-77 / 437-56-66
Website: www.vniims.ru
E-mail: office@vniims.ru
Unique entry number in the register of accredited persons No. 30004-13.