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- Vibration Switch(VM-90M Series)
Vibration Measuring System
Vibration Switch(VM-90M Series)
- Analog type which has lots of achieved hazard prevention
- Widely used and long-selling device.

Features
- ■Corresponds to all kind of pickup
- ■Easy installation : stationary, panel housed or wall-mounted
- ■Customizable power supply, alarm delay time and so on
Suitable pickups
Type | VP-3144 C/D*1 |
VP-3213 AC/AD*1 |
VP-3223 AC/AD*1 |
VP-A52IW | VP-3133 HEX/VEX | VP-3134 AEX |
---|---|---|---|---|---|---|
Pickup type | Electrodynamic velocity type | Piezoelectric accelerometer | Electrodynamic velocity type | |||
Sensitivity | 10 mV / (mm/s) | 17.5 mV / (mm/s) | 5 mV / (m/s2) | 17.5 mV/ (mm/s) | 10mV / (mm/s) | |
Natural frequency | 14 Hz | 4.5 Hz | 35,000 Hz | 4.5 Hz | 14 Hz | |
Operational temperature range | -20 to +80 ゚C | -20 to +70 ゚C | -30 to +110 ゚C | -20 to +70 ゚C | ||
Structure | Drop-proof (Equivalent to IP32) | Insulative and water proof | Flame-proof (EX d ⅡBT4Gb) | |||
Outward appearance |
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![]() Horizontal only |
![]() Vertical only |
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Notes | Suitable for monitoring of medium frequency displacement or velocity |
Suitable for monitoring of low frequency displacement or velocity | Suitable for monitoring of acceleration | Suitable for monitoring of low frequency displacement or velocity |
Suitable for monitoring of medium frequency displacement or velocity |
*1 Cable connection method C : G 1/2 pipe thread / D : direct connection of clamp
*Another pickup for high temperature or waterproof are also available. Please refer to pickup pages
Specifications
Type | Monitor for displacement | Monitor for velocity | Monitor for acceleration | |
---|---|---|---|---|
VM-90 MED | VM-90 MEV | VM-90 MEA | ||
Frequency range | 15 to 500 Hz +0.5 dB -3 dB 20 to 500 Hz ±0.5 dB |
15 to 1,000 Hz +1 dB -3 dB 20 to 850 Hz ±1 dB |
10 to 8,000 Hz ±3 dB 20 to 5,000 Hz ±1 dB |
|
Measurement range (full scale) *1 |
Select from 0 to 20 μmp-p, 0 to 50 μmp-p, 0 to 100 μmp-p, 0 to 200 μmp-p, 0 to 500 μmp-p |
Select from 0 to 1 mm/s, 0 to 2 mm/s, 0 to 5 mm/s, 0 to 10 mm/s, 0 to 20 mm/s, 0 to 50 mm/s |
Select from 0 to 1 m/s2, 0 to 2 m/s2, 0 to 5 m/s2, 0 to 10 m/s2, 0 to 20 m/s2, 0 to 50 m/s2, 0 to 100 m/s2 |
|
Alarm step | 2 steps | |||
DC output (for recorder) |
4 to 20 mA (at the load 0 to 300 Ω) 1 to 5 V (100 kΩ or more, 250 Ω connection to outside) |
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Alarm action | Activated over alarm setting value (time constant : approx. 3 seconds) | |||
Ararm setting range | Possible to set 10 to 100% of full scale | |||
Alarm contact | 1C contact for each alarm | |||
Alarm contact capacity | AC250 V 3.0A/DC24 V , 3.0 A (at resistive load) | |||
Alarm reset | Automatic | |||
Operating temperature/ humidity range |
0 to 50 ゚C 0 to 85%RH (Non-condensing) | |||
Power supply | AC100 V or 110 V *2 (+10%/-15%), 50/60 Hz | |||
Power consumption | 15 VA or less | |||
Size/Mass | 200 (W) x 103 (D) x 105 (H) mm (excluding connectors etc.) /2 kg |
*1 Please inform us the measurement range
*2 AC 200 / 220 V is optional