Common Specifications of Main Units
| Classification | Item | Specification |
| Signal Output | Converted Output | DC4-20mA、1 Output (Response time 3 sec*1） |
| Monitor Output | AC±5V FS±5%（for quick check)*3
1-5VDC FS±5%（option） |
| Alarm Output | Alarm Contact | 1 Step 1a Contact AC 125V、 DC 30V－1A （Resistive Load） |
| Alarm Level Setting Extent | 0～100% of Full Scale Arbitrary Setting (in 1% Step)*2 |
| Alarm Action | Detecting the set Alarm level ,activates at the end of the Delay time
(reset automatically)
Initial Delay time setting 5sec (3～99sec: 1 sec Step) |
| Indication | Main Unit Panel
Indicator | Red 7 segment LED (4 Digit Indication) |
| Vibration Amplitude | 5 Ranges for each selected function
Blinks for over 120% of Full Scale |
| Alarm Setting (%) | 1～100% for Full Scale*2 |
| Pickup Sensitivity | 80～120% for Standard Sensitivity |
| Ambient
Environment | Ambient Temperature | -5～55℃ |
| Ambient Humidity | 30～90%RH（No condensation） |
| Others | Supply Voltage | AC100V±10% 50/60Hz±2Hz |
| Installation | On the Wall or DIN Rail (Din Rail contact section is demountable)On |
| Terminal Board | M3.5 screws on the Back Panel |
| Outward Case Material | Plastic |
| Size・Mass | W50×H80×D127mm Approx. 300g |
*1：Changeable by the customized software
*2: Setting of 0% cancels the alarm function.
*3：Usable for quick check of the waveforms
(1)Specifications of VM-90 DA (Applicable to Pre-amplifier build-in type Pickups)＊6（VP-A51 IW / VP-A 4345Ⅰ）
| Measurement Mode | Item | Specification |
| Acceleration＊5 | Measurement Range | 10, 20, 50, 100, 200(m/s2rms) |
| Frequency Range | 10～4kHz±1dB
10～10kHz+1dB、-3dB |
| Velocity＊5 | Measurement Range | 5, 10, 20, 50, 100(mm/s rms) |
| Frequency Range | 10～1kHz+1dB、-2dB |
| H Function＊5 | Measurement Range | 10, 20, 50, 100, 200(m/s2rms) |
| Frequency Range | DC～1kHz（Envelope detection of 2kHz～15kHz） |
| H Function CF＊5 | Measurement Range | 5, 10, 20, 50, 100 |
| Frequency Range | DC～1kHz（for peak/rms of H Function） |
*5：Changeover of the ｍeasurement mode is possible by the switch located on the front panel.
*6：Designate the type of the main unit on placing order
(2)VM-90 DV Specifications (Using Medium Frequency Pickups)＊6（VP-90 VC / VP-90 VD）
| Mode | Item | Specification |
| Velocity＊5 | Measurement Range | 5,10,20,50,100(mm/s rms) |
| Frequency Range | 10～1kHz+1dB |
| Displacement＊5 | Measurement Range | 50,100,200,500,1000(μmp-p) |
| Frequency Range | 10～500Hz±1dB |
*5：Changeover of the ｍeasurement mode is possible by the switch located on the front panel.
*6：Designate the type of the main unit on placing order
(3)VM-90 DV Specifications (Using Low Frequency Pickups)＊6 （VP-91 VC / VP-91 VD / VP-92 VC / VP-92 VD）
| Mode | Item | Specification |
| Velocity＊5 | Measurement Range | 5,10,20,50,100(mm/s rms) |
| Frequency Range | 5～500Hz+1dB |
| Displacement＊5 | Measurement Range | 50,100,200,500,1000(μmp-p) |
| Frequency Range | 5～500Hz±1dB |
*5：Changeover of the ｍeasurement mode is possible by the switch located on the front panel.
*6：Designate the type of the main unit on placing order