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Vibration Measuring System

Vibration Signal Converter(VM-90D Series)

Entry level model for vibration monitoring
A standard monitoring device which has the standard functions, such as indication of vibration value, signal output and alarm contact output.
Vibration Signal Converter(VM-90D Series)

Features

■Low price
■Compact size
■Changeover type for measurement mode and range

System composition

Suitable pickups

Type VP-90V(C/D)*1 VP-91V(C/D)*1 VP-92V(C/D)*1 VP-A51IW HS-100I
Pickup type Electrodynamic velocity type Piezoelectric accelerometer
Sensitivity 10 mV /(mm / s) 17.5 mV / (mm / s) 5 mV /(m/s2 50mV/G
Natural frequency 14 Hz 4.5 Hz 30,000 Hz 24,000 Hz
Operational temperature range 0 to +80 ゚C 0 to +65 ゚C -30 to +110 ゚C -20 to +80 °C
Structure Drop-proof (Equivalent to IP32) Water-proof (Equivalent to IP54) Safe and explosion proof (Ex iaⅡC T4 Ga)
Outward
appearance
VP-90 VC/VD VP-91 VC/VD

Horizontal only

VP-92 VC/VD

Vertical only

VP-A51IW HS-100I
Notes Suitable for monitoring of medium
frequency displacement or velocity
Suitable for monitoring of low frequency displacement or velocity Suitable for monitoring of acceleration Insulated

*1 Cable connection method C : G 1/2 pipe thread / D : directly clamped connection
*Other pickups for high temperature or waterproof are also available. Please refer to pickup page.

Specifications

Instruction Manual Download
Specification sheet download
Item Specification
Signal output Conversion output DC4-20 mA, 1 output (response time 3 seconds)*1
Monitor output AC ±5 V, FS ± 5 % (For quick check)*3
DC 1 to 5 V, FS ± 5 % (Option)
Alarm output Alarm contact 1 step 1a contact, AC 125 V to 0.5 A, DC 30 V to 1A (resistive load)
Alarm setting range 0 to 100% of full scale arbitary setting ( in 1 % step)*2
Alarm action Operation that activates when time passes alarm delay time after vibration level
exceeds alarm set level. (automatic reset)
Initial alarm delay time setting 5 sec. (3 - 99 sec. : 1 sec. step)
Indication
function
Main body Red 7 segment LED (4 digit indication)
Indicator
Vibration value: 5-step switching indication depends on the setting mode
Blink for 120 % over range full scale
Alarm setting value (%) : 0 to 100 for full scale*2
Pickup sensitivity value (%) : 80 to 120 for standard sensitivity
Operational temperature range -5 to + 55 ゚C 30 to 90 %RH (Non-condensing)
Power supply AC100 V ± 10 % 50 / 60 Hz ± 2 Hz
Power consumption Less than 10 VA
Mounting On the wall or Din rail (Din rail connector is detachable)
Terminal board M3.5 screw on the back panel
Material Plastic
Size / Mass 50 (W) x 127 (D) x 80 (H) mm / Approx. 300 g

*1 Can be changed by the customized software
*2 Setting at 0% disable a alarm function
*3 Only for quick check of waveform

(VP-A51IW, VP-A4345I)

VM-90DA (Applicable to pre-amplifier build-in type pickup)

Measurement Mode Item Specification
Acceleration*5 Measurement range 10, 20, 50, 100, 200 (m/s2 rms)
Frequency range 10 to 4 kHz ± 1 dB, 10 to 10 kHz, +1 dB, -3 dB
Velocity*5 Measurement range 5, 10, 20, 50, 100, (mm/s rms)
Frequency range 10 to 1 kHz ± 1 dB, -2 dB
H Function*5 Measurement range 10, 20, 50, 100, 200 (m/s2 rms)
Frequency range DC to 1 kHz (Envelope detection of 2 kHz to 15 kHz)
H Function CF*5 Measurement range 5, 10, 20, 50, 100
Frequency range DC to 1 kHz (for peak / rms of H function)

(VP-90VC, VP-90VD)

VM-90DV (Applicable to medium frequency pickup)

Measurement mode Item Specification
Velocity*5 Measurement Range 5, 10, 20, 50, 100 (mm/s rms)
Frequency Range

10 to 1 kHz ±1 dB

Displacement*5 Measurement Range 50, 100, 200, 500, 1,000 (μmp-p)
Frequency Range 10 to 500 Hz ± 1 dB

(VP-91VC, VP-91VD, VP-92VC, VP-92VD)

VM-90DVL (Applicable to low frequency pickup)

Mode Item Specification
Velocity*5 Measurement Range 5, 10, 20, 50, 100 (mm/s rms)
Frequency Range

5 to 500 Hz ± 1 dB

Displacement*5 Measurement Range 50, 100, 200, 500, 1,000 (μmp-p)
Frequency Range 5 to 500 Hz ± 1 dB

*5 Measurement mode is switchable by the switch on the front panel. Measurable up to 20 % of range over. Error is 1 % or less.

Outward dimensions

Outward dimansions

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