Water Industry

Penstock Leakage Detection

Rittmeyer Penstock Leakage Detection (Rupture detection of hydroelectric penstocks) with the Rittmeyer RISONIC Controller and Ultrasonic Transit Time modules

Application 

Rupture detection of hydroelectric penstocks.

Key Requirements

  • Fast and safe reaction in the event of the penstock rupturing
  • Early detection of pipe damage
  • Accurate measurement for water rights verification
  • Ability to accept multiple measuring points
  • Ease of sensor installation and controller programming

Solution

Rittmeyer RISONIC Controller and Ultrasonic Transit Time modules with the following key features;

  • Ethernet and serial (RS485) communication options, that conform to EN 61010 safety regulations, provide immediate feedback of any penstock status changes
  • Multiple transit time measuring paths (up to 16) detect any leakage between the two monitoring points on pipe systems of up to 20m in diameter
  • Measuring accuracy of up to 0.5% with an analogue resolution of 16 bits
  • RISONIC modular system enables the monitoring of multiple penstocks from the one controller
  • Standardised sensor mountings and the choice of an easily configurable web interface or a local illuminated LCD screen to programme the controller, ensure simple set up of the system

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Pump Protection

Application 

Pump protection for a tailings dam.

Key Requirements

  • ‘Run-dry’ monitoring for pump protection
  • Suspended solids to not affect the flow sensor’s operation
  • Easily adjustable switching point
  • Wide voltage range
  • Robust housing

Solution

weber 4120.12M flow-captor with the following key features;

  • Calorimetric principle flow sensor capable of monitoring flow rates of up to 3m/s and switching loads of up to 400mA
  • Stainless steel insertion probe than can withstand pressures of up to 100 bar and is not affected by suspended solids
  • Easily accessible range and set point adjustments with a visual analogue display of flow rate
  • Wide 10VDC to 36VDC range
  • Stainless steel IP67 housing that withstands ambient temperatures of up to 70 deg C

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Underground Mine Water Level Monitoring 

Application 

Monitoring of the water level within an underground coal mine.

Key Requirements

  • Certified for use within an underground coal mine (potential for methane gas)
  • Analogue output to measure up to 30m of water depth
  • Facility for cable and catenary connection to lower the transmitter 300m down a bore
  • High accuracy and repeatability
  • Sensor referenced to atmosphere

Solution

STS ATM.ECO/N/Ex submersible pressure transmitter with the following key features;

  • IECEx certification
  • 4-20mA output with 3X overpressure on a 0-30m range transducer
  • 330m intrinsically safe ‘blue’ cabling with Viton seals and catenary fittings on the rear of the stainless steel housing
  • 0.1% FS accuracy with temperature compensation from -5 to 80 deg C
  • Sensor referenced to atmosphere via an integrated ‘breathing’ filter

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