EUROPE


Vibration Pickups

Electrodynamic velocity pickup

Principle of reciprocal pendulum type pickup is to induce voltage by reciprocal motion of the seismic mass with a coil in the magnetic field being suspended by a diaphragm or coil spring. Because of its high sensitivity and advanced linearity, it is suitable for detection of malfunction or deterioration of rotational machineries. Due to its structure, mounting should be done carefully for its direction or angle.

Features

■ High sensitivity, stable performance, advanced linearity in wide amplitude range
■ Relatively large output
■ Because of small internal resistance, long cable can be used.
■ External power supply is not necessary (self - power generation)
■ Suitable for sleeve bearing vibration measurement

[ Frequency response ]

The upper frequency limit is to be difined by the response of the low-pass filter. The lower frequency limit depends on its own natural frequency. Use in the frequency range lower such frequency is possible by damping the peak of the resonance.

Fixing methods

Fixing methods

  • Fixing angle

    The table below shows the fixing angle of pickup whose natural frequency is 14 Hz or 4.5 Hz.

    Fixing angle

  • Fixing direction

    Fixing direction

    Both (a) and (b) are available for the pickup whose natural frequency is 14 Hz, but the pickup whose natural frequency is 4.5 Hz is limited to any one of the (a) or (b). Can not be fixed downwardly. Special fixture is needed to fix upwardly.

Comments

The difference between C and D is the shape of cable connection.

  • Type C : Pipe thread type
  • Type D : Direct connection type

Product lineup

Medium
Frequency
Vibration
monitoring
system

 VP-3144C/D ― Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection axis Horizontal or vertical
Natural frequency 14 Hz
Frequency range 10 to 1,000 Hz*1
Maximum allowable acceleration 100 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -20 to +80 ゚C
Structure Drop-proof (Equivalent to IP32)
Cable connection Pipe thread (type C),
direct connection of clamp (type D)
Suitable cable 2 core shielded cable
Weight 200 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Medium
Frequency
Vibration
monitoring
system

 VP-3144F ―Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection axis Horizontal or vertical
Natural frequency 14 Hz
Frequency range 10 to 1,000*1
Maximum allowable acceleration 100 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -20 to +80 ゚C
Structure Drop-proof (Equivalent to IP32)
Cable connection MS connector
Suitable cable 2 core shielded cable with connector
Weight 300 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Medium
Frequency
Waterproof Vibration
monitoring
system

 VP-3144W ― Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection axis Horizontal or vertical
Natural frequency 14 Hz
Frequency range 10 to 1,000 Hz*1
Maximum allowable acceleration 100 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -20 to +80 ゚C
Structure Watrproof (Equivalent to IP66)
Cable connection Pipe thread
Suitable cable 2 core shielded cable
Weight 600 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Medium
Frequency
High
Temperature
Vibration
monitoring
system

 VP-3374C/D ― Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection axis Horizontal or vertical
Natural frequency 14 Hz
Frequency range 10 to 1,000 Hz*1
Maximum allowable acceleration 100 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -30 to +105
Structure Watrproof (Equivalent to IP32)
Cable connection Pipe thread (type C),
direct connection of clamp (type D)
Suitable cable 2 core shielded cable
Weight 200 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Medium
Frequency
High
Temperature
Vibration
monitoring
system

 VP-3544C/D ― Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection axis Horizontal or vertical
Natural frequency 14 Hz
Frequency range 10 to 1,000 Hz*1
Maximum allowable acceleration 100 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -30 to +130℃
Structure Drop-proof(Equivalent to IP32)
Cable connection Pipe thread (type C) ,
direct connection of clamp (type D)
Suitable cable 2 core shielded cable
Weight 200 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Medium
Frequency
2 or 3
direction
Waterproof Vibration
monitoring
system

 VP-3354A / VP-3364A
 ― Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection
axis
VP-3354A (2direction) Horizontalx2 or Horizontal & Vertical
VP-3364A (3direction) Horizontalx2 & Verticalx1
Natural frequency 14 Hz
Frequency range 10 to 500 Hz*1
Maximum allowable acceleration 100 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -20 to +80 ゚C
Structure Waterproof (Equivalent to IP32)
Cable connection Direct connection of clamp
Suitable cable 3 or 4 core shielded cable
Weight 700 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Medium
Frequency
Flame
Proof
Vibration
monitoring
system

 VP-3134A ― Linear pendulum type ―

■ Specifications

Sensitivity 10 mV/ (mm/s)
Detection axis Horizontal or vertical
Natural frequency 14 Hz
Frequency range 10 to 500 Hz*1
Maximum allowable acceleration 98 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -10 to +70 ゚C
Structure Flame-proof (d2G4)
Cable connection Pressure-resistant packing
Suitable cable 2 Core shielded cable
Weight 2,000 g
Case material Aluminum
Remarks Matching No.T39915

*1 Frequency range is limited by the range of connedted monitoring device.

Low
Frequency
Vibration
monitoring
system

 VP-3213A C/D (Horizontal only)
 VP-3223A C/D (Vertical only) ― Linear pendulum type ―

■ Specifications

Sensitivity 17.5 mV/ (mm/s)
Detection axis VP-3213 (Horizontal only),
VP-3223 (Vertical only)
Natural frequency 4.5 Hz
Frequency range 5 to 500 Hz*1
Maximum allowable acceleration 30 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -20 to +70 ゚C
Structure Drop-proof (Equivalent to IP32)
Cable connection Pipe thread (type C),
direct connection of clamp (type D)
Suitable cable 2 Core shielded cable
Weight 500 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Low
Frequency
Waterproof Vibration
monitoring
system

 VP-3213AW (Horizontal only)
 VP-3223AW (Vertical only) ― Linear pendulum type ―

■ Specifications

Sensitivity 17.5 mV/ (mm/s)
Detection axis VP-3213 (Horizontal only) ,
VP-3223 (Vertical only)
Natural frequency 4.5 Hz
Frequency range 5 to 500 Hz*1
Maximum allowable acceleration 30 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -20 to +70 ゚C
Structure Waterproof (Equivalent to IP66)
Cable connection Direct connection of clamp
Suitable cable 2 core shielded cable
Weight 600 g
Case material Aluminum

*1 Frequency range is limited by the range of connedted monitoring device.

Low
Frequency
Flame
Proof
Vibration
monitoring
system

 VP-3133H (Horizontal only)
 VP-3133V (Vertical only) ― Linear pendulum type ―

■ Specifications

Sensitivity 17.5 mV/ (mm/s)
Detection axis VP-3133H (Horizontal only) ,
VP-3133V (Vertical only)
Natural frequency 4.5 Hz
Frequency range 5 to 500 Hz*1
Maximum allowable acceleration 29 m/s2
Maximum measurable displacement 1,000 μmp-p
Operating temperature range -10 to +70 ゚C
Structure Flame-proof (d2G4)
Cable connection Pressure-resistant packing
Suitable cable 2 core shielded cable
Weight 2,000 g
Case material Aluminum
Remarks Matching No.T39915

*1 Frequency range is limited by the range of connedted monitoring device.