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Electronic valve with flow meter

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EBV - Renesas Electronic valve with flow meter Mixed Media (MM)

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Accurate measurement of liquids and gasses

Electronic valve control is essential to many industrial applications for liquids and gases. Utilizing the Renesas FS1012 flow sensor to monitor the rate of delivery, this design controls the flow via a motor-controlled valve. Two MCUs are utilized for safety concerns. The RX23T is especially designed for motor control applications and the RX231/RX65N is used to redundantly monitor the motor position, measure the gas/liquid flow, and to fulfill Safety Integration Level 2 (SIL2) standards thanks to the Functional Safety Platform software. The flow status is displayed on an LCD as well as communicated over Ethernet or RS485. This design can operate off of 12V or 24V.

Key features:

  • Supports SIL2 standard by Functional Safety Platform Software certified by TÜV
  • MEMs solid-state gas flow sensor
  • RS-485 fault-protected against 15kV ESD and over-voltages up to +/-60V and up to 20Mbps data rates

EBV - Renesas Electronic valve with flow meter Long Copy (LC)

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Recommended products

Products Description Documents
Microcontroller    
RX23T RXv2 Core, FPU, DSP, low cost and high performance for control applications User's manual
RX231 RXv2 Core, FPU, DSP, 48pin, 256K Flash, rich communication User's manual
RX651 RX V2 Core with up to 2MB FLASH, high-integration, general purpose MCU User's manual
Buck Regulator    
ISL85410 Wide VIN 1A synchronous buck regulator Datasheet
Op Amp    
ISL28134 5V ultra-low noise, zero drift rail-to-rail precision op amp Datasheet
Flow Sensor    
FS1012 5V ultra-low noise, zero drift rail-to-rail precision op amp Datasheet
CMR Transceiver    
ISL32459E 5V ultra-low noise, zero drift rail-to-rail precision op amp Datasheet

 

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block diagram
 

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