Shinkawa VM-701B VM-7 Series Vibration/Displacement Monitoring Module
VM-701B is a vibration/displacement monitoring module from the Shinkawa VM-7 series in Japan. Used to receive signals from eddy current probe sensors and collect data on relative vibration, displacement, and differential expansion of rotating equipment shafts; Complete signal conditioning and calculation, output 4-20mA analog signal to DCS system; Equipped with alarm and danger relay contact output, realizing equipment over limit alarm; Support sensor disconnection detection, upload real-time vibration displacement status of the unit, provide measurement basis for unit interlocking protection, and ensure the safe operation of rotating machinery equipment with VM-701B.
Product features
- 4-channel synchronous measurement can simultaneously monitor shaft vibration, shaft displacement, and thermal expansion difference between rotor and cylinder body. The channel function can be configured on site and is suitable for eddy current sensors.
- Support on-site configuration of high-low pass filtering parameters to adapt to rotating machinery at different speeds; Equipped with sensor disconnection fault detection, output fault status when the probe is abnormal.
- Dual level alarm: Warning Alert, Danger Danger relay contact output, supports first fault memory, startup delay suppression, to avoid false alarms during unit startup and shutdown.
- 4-20mA industrial standard analog output, can be connected to DCS and PLC systems to read real-time vibration displacement data; The backplane bus is connected to the VM-761B rack and supports hot swappable replacement.
- Rich optional suffixes:/PM phase marking,/ALY spectrum analysis,/NB1 non ignition certification,/TRP tropical high temperature version, suitable for different project operating conditions and new requirements.
- The panel LED status indicator light intuitively displays the module’s operation, alarm, and fault status, facilitating on-site maintenance and troubleshooting.
Shinkawa VM-701B VM-7 Series Vibration/Displacement Monitoring Module
| Parameter | Value |
|---|---|
| Model | VM‑701B |
| Product family | VM‑7 Series TSI system |
| Module type | Vibration / Displacement monitor module |
| Input channel | 4 channels |
| Supported sensor | Eddy‑current probe FK‑202F / VK‑202A |
| Measuring range | 0‑1000 μm p‑p |
| Analog output | 4‑20 mA, burnout 4mA |
| Relay output | 6 relay contacts(Alert / Danger / Module fault) |
| Filter | HPF 10‑100Hz, LPF 200‑1000Hz configurable |
| Power supply | 24 V DC |
| Mounting | Rack‑mount for VM‑761B chassis |
| Communication | Via backplane bus |
| Operating temperature range | 0 ~ +65 ℃ |
| Storage temperature range | ‑20 ~ +70 ℃ |
| Relative humidity | 5‑95% non‑condensing |
| Dimension(W×H×D) | 45 ×120 ×210 mm |
| Weight | 1.3 kg |
| Origin | Japan |
| Option suffix | /PM,/ALY,/NB1,/TRP,/TB1 |
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Usage scenarios
- TSI monitoring system for steam turbines in thermal and gas-fired power plants, monitoring shaft vibration, shaft displacement, and differential expansion.
- Petrochemical turbine compressors, steam driven centrifugal compressor units, and online monitoring of rotor status.
- Steel mills, large pumping stations, high-power steam turbine driven equipment, rotating machinery protection monitoring.
- Stock Shinkawa VM-7 series TSI system, replacement of damaged VM-701B module with original spare parts, no need to modify probes, wiring, and DCS logic.
- Oil and gas factories, large rotating units in coal chemical plants, equipment protection interlock measurement and acquisition.
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