Vibration Measuring System
Vibration Switch（VM-90M Series）
- Analog type which has lots of achieved hazard prevention
- Widely used and long-selling device.
Standard type (alarm output : 1 step) and superior type (alarm output : 2 steps)
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-3133HEX/VEX | VP-3134AEX |
|---|---|---|---|---|---|---|
| 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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| 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 |
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*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 (superior type) |
VM-90 MFD (standard type) | VM-90 MEV (superior type) |
VM-90 MFV (standard type) |
VM-90 MEA (superior type) |
VM-90 MFA (standard type) | |||||||||
| Frequency range |
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10 to 8,000 Hz ±3 dB 20 to 5,000 Hz ±1 dB |
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| 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 1m / s2, 0 to 2m / s2, 0 to 5 mm / s2, 0 to 10 m / s2, 0 to 20m / s2, 0 to 50m / s2, 0 to 100 m / s2 |
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| Alarm step | 2 steps | 1 step | 2 steps | 1 step | 2 steps | 1 step | ||||||||
| DC output (for recorder) |
4 to 20 mA (at the load 0 to 300 Ω） 1 to 5 V (100 kΩ or more, 250Ω connection to outside |
– | 4 to 20 mA (at the load 0 to 300 Ω） 1 to 5 V (100 kΩ or more, 250Ω connection to outside |
– | 4 to 20 mA (at the load 0 to 300 Ω） 1 to 5 V (100 kΩ or more, 250Ωconnection to outside |
– | ||||||||
| 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 | |||||||||||||
| Operational 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
