Epson Develops New 3-Axis Vibration Sensors for Dam and River Floodgate Equipment Monitoring

- Sensors compliant with ISO 10816 and ISO 20816*1 -

M-A342VD10 vibration sensor
Dust- and water-protected M-A542VR10 vibration sensor

- TOKYO, Japan, November 24, 2021 -

Seiko Epson Corporation (TSE: 6724, "Epson") has developed two new vibration sensors, the M-A342VD10 and the M-A542VR10, the latter of which has a dust- and water-protected RS422 interface. Both products are compliant with the evaluation criteria for motors in ISO 10816 and ISO 20816. Both also are three-axis vibration sensors with digital velocity and displacement output and are characterized by low noise, high stability, and low power consumption thanks to crystal vibration sensor elements produced using Epson's unique microfabrication technology. Volume production of the new products is scheduled to start in December 2021.

In today's world, where unexpected heavy rains and floods have become a frequent occurrence due to global warming, the proper operation of floodgates and dams to control waterways is indispensable for community safety. By measuring the vibration of motors that open and close floodgates and dams in accordance with ISO standard requirements, Epson's vibration sensors enable infrastructure operators to assess the condition of the equipment and perform maintenance as needed.
Epson wants its vibration sensors to play a part in protecting social infrastructure that is essential for securing community safety.

Features of the M-A342VD10 and M-A542VR10

  • ISO 10816 and ISO 20816 compliant: Support velocity and displacement output
  • Wide dynamic range: No need to adjust the measurement range to match the magnitude of vibration
  • Impervious to magnetic fields: Quartz crystal sensors can accurately measure motors that generate a strong magnetic field
  • Resistant to noise: Digital output is resistant to the effects of noise
  • Simple measurement environment: No charge amp, A/D converter or other peripheral equipment needed
  • High reliability: Mean time between failures (MTBF) of 87,600 hours guaranteed

Product applications

Motors for operating weirs, floodgates, dam gates, etc.

Related links

Please see the link below for product details.

Product specifications

Model No. M-A342VD10 M-A542VR10
Type Built-in IP67 dust and water protection
Outside dimensions 48 × 24 × 16 mm 65 × 60 × 30 mm
Host connector Receptacle connector (1.00 mm) M12 connector
Interface SPI & UART RS422
Transfer speed 115.2 kbps to 921.6 kbps (default 460.8 kbps)
Detected axes 3
Physical output quantities Velocity and displacement
Output formats raw, rms, p-p (digital output)
Dynamic range Velocity: ±100 mm/s
Displacement: ±200 mm
Measured frequency range Velocity: 10 Hz to 1,000 Hz
Displacement: 1 Hz to 100 Hz
Supply voltage 3.15 V to 3.45 V 9 V to 32 V
Current consumption 29 mA (3.3 V) 51 mA (12 V)
Operating temperature range -30℃ to 85℃ -30℃ to 70℃


*1 ISO 10816 & ISO 20816

Standards created by the International Organization for Standardization (ISO) that set forth general guidelines for the measurement and evaluation of machine vibration measured on rotating and non-rotating machines.

About Epson
Epson is a global technology leader dedicated to co-creating sustainability and enriching communities by leveraging its efficient, compact, and precision technologies and digital technologies to connect people, things, and information. The company is focused on solving societal issues through innovations in home and office printing, commercial and industrial printing, manufacturing, visual and lifestyle. Epson will become carbon negative and eliminate use of exhaustible underground resources such as oil and metal by 2050.
Led by the Japan-based Seiko Epson Corporation, the worldwide Epson Group generates annual sales of around JPY 1 trillion.