Accelerometer (with built-in preamplifier)
NP-3000 series

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This sensor converts mechanical vibrations into electric signals in proportion of vibration acceleration.
"The NP-3000 series offers ultra-small masses of 0.4g, tri-axial type which can obtain vibration directions of XYZ at once, waterproof, high sensitive type, and so on. You can choose the most suitable detector according to the purpose of use, operation conditions, and applications. Since the preamplifier is built in the detector main body of the NP-3000 series, sensor signal input part can be made relatively inexpensively and it can be directly connected to analysis equipment such as our FFT analyzer."

Features

  • The seismo-type*1 sensor requires no reference point for measurement
  • Compact and light weight, easy to mount and easy handling
  • Wide dynamic range, micro acceleration measurement available
  • High resonance frequency makes the measureable frequency range wider. Wide band frequency can be measured without waveform distortion.
  • Built-in preamplifier type, direct connection*1 to Analyzers including FFT Analyzer made by Ono Sokki.
  • Corresponding to JCSS calibration.
  • TEDS compatible sensors are available

*1:Vibration system where M is mass, K is the spring constant, and C is the viscosity resistance.


 

NP series Accelerometers

Connection diagram
Accelerometer and related products (Click here)

Adobe Reader(PDF 679KB)

 

Specifications

Accelerometer (with built-in preamplifier) NP-3000 series
Features Ultra compact,
lightweight		 Compact,
lightweight		 Compact,
lightweight		 Compact,
general-purpose usage		 General-purpose usage General-purpose usage, floating
Structure Shear type Shear type Shear type Shear type Shear type Shear type
Model NP-3211 NP-3418 NP-3412/3414 NP-3110 NP-3120 NP-3121
Appearance
NP-3211
NP-3418
NP-3412· 3414
NP-3110
NP-3120
NP-3121
Sensitivity*1 1.02 mV/(m/s2)
±15 %		 1.0 mV/(m/s2)
±10%		 1.0 mV/(m/s2)
± 1dB		 0.5 mV/(m/s2)±1dB 1.0 mV/(m/s2)±1 dB 1.0 mV/(m/s2)±1 dB
Resonant Frequency 50 kHz or more approx. 46 kHz approx. 47 kHz approx. 45 kHz approx.50 kHz approx. 50 kHz
Frequency Response range 1 Hz to 10 kHz ±5 %
0.7 Hz to 13 kHz
±10 %		 2 Hz to 6 kHz
±0.5 dB		 2 Hz to 8 kHz
±0.5 dB		 5 Hz to 6 kHz
±0.5 dB		 5 Hz to 5 kHz
±0.5 dB		 5 Hz to 5 kHz
±0.5 dB
0.3 Hz to 20 kHz
±3 dB		 0.8 Hz to 16 kHz
±3 dB		 0.8 Hz to 16 kHz
±3 dB		 5 Hz to 15 kHz
±3 dB		 5 Hz to 12 kHz
±3 dB		 5 Hz to 10 kHz
±3 dB
Maximum allowable acceleration 4,900 m/s2 2,200 m/s2 2,200 m/s2 4,400 m/s2 2,200 m/s2 2,200 m/s2
Maximum shock resistance 98,000 m/s2 10,000 m/s2 10,000 m/s2 100,000 m/s2 100,000 m/s2 10,000 m/s2
Operating Temperature range −54 to + 125 °C −30 to + 110 °C −30 to + 110 °C −20 to + 110 °C −20 to + 110 °C −20 to + 110 °C
Output impedance 300 Ω or less 100 Ω or less 100 Ω or less 100 Ω or less 100 Ω or less 100 Ω or less
Sensor noise approx. 20 µVrms
approx. 0.02 m/s2 rms		 20 µVrms or less
0.02 m/s2 rms
or less		 20 µVrms or less
0.02 m/s2 rms
or less		 20 µVrms or less
0.04 m/s2 rms
or less		 20 µVrm s or less
0.02 m/s2 rms or less		 20 µVrms or less
0.02 m/s2 rms
or less
Power requirement 18 to 30 VDC
2 to 20 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 12 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive
Weight 0.5 g 1.9 g NP-3412: 5.5 g
NP-3414: 3.5 g 		5.4 g 20 g 34 g
Ground / insulation Case Ground
(surface insulation)		 Case Ground Case Ground Case Ground Case Ground Mounting surface insulation
Case material Aluminum Titanium SUS303 Titanium SUS303 SUS303
Outer dimensions *2 (mm) 3.6 (H)×6.4 (W) ×11.4 (L) 7 (Hex) X 11.5 (H) NP-3412:
10 (Hex) X 12.5 (H)
NP-3414:
8 (Hex) X 11 (H) 		11 (Hex) X 14.5 (H) 14 (Hex) X 23.5 (H) 17 (Hex) X 32 (H)
Connector 3-56 coaxial
side		 M3 coaxial
(micro connector)
top		 M3 coaxial
(micro connector)
NP-3412: side
NP-3414: top		 M3 coaxial
(micro connector)
side		 10-32 coaxial
(miniature connector)
side		 10-32 coaxial
(miniature connector)
top
Cable NP-0172A (provided)
(3m)		 NP-0150A series
 NP-0150A series
 NP-0150A series
 NP-0120/0130/0180 series
 NP-0120/0130/0180 series
Attachment Adhesive M3 female screw M3 female screw M3 female screw M5 female screw M5 female screw
Accessories NP-0172A (3 m cable)
NP-0021 (BNC to 10-32 conversion adapter)
Mounting wax,
Tool for scooping out,
Instruction manual,
Calibration chart		 M3×0.5 L=4
set screw
Instruction manual,
Calibration chart		 M3×0.5 L=4
set screw
Instruction manual,
Calibration chart		 M3×0.5 L=4
Exclusive 3 m cable
set screw
Instruction manual,
Calibration chart		 M5×0.8 L=10
set screw,
Instruction manual,
Calibration chart 		M5×0.8 L=10
set screw
Instruction manual,
Calibration chart
Outline drawings
(mm)		 NP-3211 NP-3418 NP-3412/NP-3414 NP-3110 NP-3120 NP-3121

*1: The sensitivity such as ±0.5 dB and ±1 dB represents sensitivity variation for each sensor ( individual difference), not the measurement accuracy. Performing calibration for each of the sensor according to its respective sensitivity value enables measuremet to be performed under the same conditions and with the same accuracy, irrespective of the sensor type. 1 G≒9.8 m/s2

*2: Not including a cable and connector part.

 

Features High sensitivity High sensitivity,
floating		 Simple waterproof,*2
CE*3,floating		 Water/dust resistance*5, CE*3, floating
New		 Simple waterproof*2 Accepts TEDS,*4
CE＊3,floating		 Waterproof*5
Structure Shear type Shear type Shear type Shear type Shear type Shear type
Model NP-3130 NP-3131 NP-3331C NP-3331WC NP-3331N30 NP-3310
Appearance
NP-3130
NP-3131
NP-3331C
NP-3331WCIP67
NP-3331N30
NP-3310IPX7
Sensitivity*1 10 mV/(m/s2) ±1 dB 10 mV/(m/s2) ±1 dB 5.0 mV/(m/s2) ±10 % 5.0 mV/(m/s2) ±10 % 5.0 mV/(m/s2) ±10 % 1.0 mV/(m/s2) ±1 dB
Resonant frequency approx. 25 kHz approx. 25 kHz approx. 27 kHz approx. 27 kHz approx. 27 kHz approx. 35 kHz
Frequency response range*2 5 Hz to 4 kHz ±0.5 dB 5 Hz to 4 kHz ±0.5 dB 2 Hz to 4 kHz ±5 % 2 Hz to 4 kHz ±5 % 2 Hz to 4 kHz ±5 % 5 Hz to 5 kHz ±0.5 dB
5 Hz to 10 ±3 dB 5 Hz to 8 kHz ±3 dB 2 Hz to 10 kHz ±3 dB 2 Hz to 10 kHz ±3 dB 2 Hz to 10 kHz ±3 dB 5 Hz to 10 kHz ±3 dB
Maximum allowable acceleration 220 m/s2 220 m/s2 700 m/s2 700 m/s2 700 m/s2 2,200 m/s2
Maximum shock resistance 100,000 m/s2 5,000 m/s2 10,000 m/s2  or more 10,000 m/s2  or more 10,000 m/s2 10,000 m/s2
Operating temperature range −20 to +110 °C −20 to +110 °C −20 to +110 °C -20 to +85 °C −20 to +85 °C −20 to +80°C
Output impedance 100 Ω or less 100 Ω or less 100 Ω or less 100 Ω or less 300 Ω or less 100 Ω or less
Sensor noise 20 µVrms or less
0.002 m/s2 rms or less		 20 µVrms or less
0.002 m/s2 rms or less		 20 µVrms or less
0.004 m/s2 rms or less		 20 µVrms or less
0.004 m/s2 rms or less		 20 µVrms or less
0.004 m/s2 rms or less		 20 µVrms or less
0.02 m/s2 rms or less
Power requirement 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive		 18 to 25 VDC
0.5 to 5 mA
Constant current drive		 15 to 25 VDC
0.5 to 5 mA
Constant current drive
Weight (g) 46 69 50 50 *6 50 59*6
Ground / insulation Case ground Mounting surface insulation Case insulation Case insulation Case insulation Case insulation
Case material SUS303 SUS303 SUS303 SUS303 SUS303 SUS303
Outer dimensions *7 (mm) 17 (Hex) X 32 (H) 21 (Hex) X 37.5 (H) 17 (Hex) X 37.5 (H) 17 (Hex) X 80 (H) 17 (Hex) X 37.5 (H) 17 (Hex) X 59 (H)
Connector 10-32 coaxial
(miniature connector)
Side		 10-32 coaxial
(miniature connector)
Top

TNC

Top

 Cable end: BNC connector

TNC

Top

 Attachecd to the cable
10-32 coaxial plug (miniature connector)
Cable NP-0120/0130/0180 series NP-0120/0130/0180 series NP-0140 series
/NP-0411
Directly connected cable type
(NP-0411 coiled cable)		 NP-0140 series
/NP-0411
 -
Attachment M5 female screw M5 female screw M5 female screw M5 female screw M5 female screw M5 female screw
Accessories M5×0.8 L＝10
set screw
Instruction manual,
Calibration chart 		M5×0.8 L＝10
set screw
Instruction manual,
Calibration chart		 M5×0.8 L＝10
set screw
Instruction manual,
Calibration chart (1 each for 80 Hz, 160 Hz)		 M5×0.8 L＝10
set screw
Instruction manual,
Calibration chart (1 each for 80 Hz, 160 Hz)		 M5×0.8 L＝10
set screw
Instruction manual,
Calibration chart 		M5×0.8 L＝10
set screw
Instruction manual,
Calibration chart
Outline drawings
(mm)		 NP-3130 NP-3131 NP-3331C NP-3331WC NP-3331N30 NP-3310

*1: The sensitivity such as ±0.5 dB and ±1 dB represents sensitivity variation for each sensor ( individual difference), not the measurement accuracy. Performing calibration for each of the sensor according to its respective sensitivity value enables measuremet to be performed under the same conditions and with the same accuracy, irrespective of the sensor type.

*2: When using it in places where the sensor may be splashed or spilled water, please refer to the procedure at the bottom.

*3: Applicable standard: EMC Directive: EN 61326:2021, RoHS Directive: EN 63000:2018

*4: Conforms to IEEE1451.4-2004 Template ver. 1.0

*5: Conforms to JIS C 0920:2003

*6: Not including a cable.

*7: Not including connector/cable part.

 

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SR-2210
PS-1300
3-ch Sensor Amplifier
(For with built-in preamplifier)
PS-1300
Record / Analysis
Record Analysis Judgement
DR-7100
Portable Data Recorder For Acoustics & Vibration		 DS-5000 / O-Solution
Data Station		 VC-3200/VC-2200
Vibration Comparator
DR-7100 DS-3200 VC-3200/2200
VW-3100
Portable Vibration Meter		 CF-9200A/CF-9400A
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Related information

Revised:2025/09/30