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Valve Monitoring Device

Brand: Rotork PLC
The RI Wireless Valve Monitoring Device (VMD) is the basic component of the RI Wireless Monitoring System.

It is installed on top of the monitored valve or actuator and consists of a stem attached mechanically to the top of the valve or actuator axle.

The VMW incorporates the means and sensors to measure the angle which corresponds to the opening status of the valve (in degrees or opening percentage).

The valve status is transmitted by an internal bi-directional transceiver that is based on the standard ZigBee protocol.

A dedicated LF receiver in the VMD supports unique maintenance and provisioning procedures.
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The RI Wireless Valve Monitoring Device (VMD) is the basic component of the RI Wireless Monitoring System.

It is installed on top of the monitored valve or actuator and consists of a stem attached mechanically to the top of the valve or actuator axle.

The VMW incorporates the means and sensors to measure the angle which corresponds to the opening status of the valve (in degrees or opening percentage).

The valve status is transmitted by an internal bi-directional transceiver that is based on the standard ZigBee protocol.

A dedicated LF receiver in the VMD supports unique maintenance and provisioning procedures.

Specifications

Brand

Accuracy

  • ± 1°

Approvals & Certifications

  • Ex ia IIC T4 (Intrinsic Safety Zone 1/21)
  • IEEE 802.15.4 - 2006 at 2.4 GHz

Battery Life

  • 5-Years (Assuming One Valve Position Change Per Hour & Nominal Configuration)

Case Material

  • Nylon 12 with 50 % Glass Beads, UV Stable

Communication

  • Data Rate: 1,366 bit/sec
  • Zigbee Pro

Distance

  • About 25 metres (Indoors at Non-Obstructed Environment)
  • LF Range (with O.D.): -1 Meter

Environmental Protection

  • IP66

Frequency

  • 125 kHz (3-Channels)

Operating Temperature

  • -40° to 85° C (-40° to 185° F)

Power

  • 3 dBm

Power Requirement

  • Lithium Batteries

Resolution

  • 0.1°

Rotation

  • -10° to 100°

Sensitivity

  • About 2 mV Per Channel

VDM Antenna

  • F-SMA Connector
  • Internal +2 dBi Peak

Documentation