This is a product of Shinkawa Electric Co. Forbes Marshall is an official distributor of Shinkawa for India and Indian subcontinent.

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VM 21

The Shinkawa VM-21 Series is an intelligent, single-channel signal conditioner designed to convert raw inputs from vibration, temperature, and displacement transducers into highly stable 4-20mA or 1-5VDC outputs. Traditional transmitters are often bulky and prone to cross-talk, but the VM-21 provides isolated, hyper-accurate signal conditioning in a fraction of the space.

By processing complex vibration and machinery data right at the DIN-rail level and outputting pristine analog signals to your host systems, the VM-21 enables localized, unmanned predictive maintenance.

Applications of VM-21:

Ideal for isolating and transmitting signals from individual fans, blowers, pumps, and compressors across a sprawling industrial complex.

Space Savings: At just 30mm wide and weighing approximately 100g (160g with socket), it dramatically reduces panel footprint compared to legacy systems
Burn-Down Failure Detection: Instantly detects transducer wiring failures and drops the output signal to below 0.8mA, preventing false healthy readings
Isolated Circuitry: Features built-in isolation circuits to eliminate signal cross-talk and ground loop issues common in heavy industrial instrumentation
Raw Diagnostics Output: Includes a buffered output for raw waveform signals, allowing maintenance teams to perform advanced spectral vibration analysis
Flexible Mounting: Snaps easily onto standard DIN-rails or can be wall-mounted using the VM-21G stand-alone socket

Frequently Asked Questions

Can the Shinkawa VM-21 mount on a DIN rail?

Yes, utilising the VM-21G stand-alone socket, the VM-21 can be easily mounted to standard DIN rails or directly to a wall.

What is the "burn-down" function on the VM-21?

The burn-down function detects if a sensor breaks or malfunctions, instantly dropping the output signal to less than 0.8mADC or 0.2VDC to alert the control system of a transducer failure.

Does the VM-21 allow raw vibration analysis?

Yes, it features a buffered waveform output that provides raw signals for advanced spectral and vector analysis diagnostics.

Are the VM-21 output signals isolated?

Yes, every VM-21 module includes an internal isolation circuit to prevent signal cross-talk and ensure highly stable output.

What power supply does the VM-21 require?

The VM-21 can be ordered to support either 24VDC or 100-240VAC/DC power supplies, making it highly versatile for different panel types.

VM 21

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Frequently Asked Questions