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Leak Detectors, Liquid Specifications

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Leak Detection Method




   Leak Detection Method:       
   Your choices are...
 
      
 
   Electrical Conductivity or Resistance
 
     Device uses a low-voltage power source applied across separate electrodes. A conductive liquid contacting both probes completes a conductive circuit.
 
   Electrochemical Sensor
 
     Responds to the presence or concentration of liquid chemicals. A selective chemical sensor. The output is presented as an amperometric, conductometric or potentiometric electrical signal.
 
   Mass Balance (Flow Metering)
 
     Mass balance leak detection is based on the difference between inflow and outflow meters.
 
   Mechanical Float Switch (Relay Contact)
 
     Devices use sealed reed switches in a stem with a permanent magnet installed in the float. As the float rises or falls (a level sensor), a switch is activated.
 
   Mechanical Line Leak Detector
 
     Pressure sensing, piston operated valve or pressure vacuum switch indicates leakage in pressurized piping systems. For application wherever there is need to detect a loss of pressure in a liquid or fluid distribution line.
 
   Optical Leak Detector
 
     Based on the absorption and collection of electromagnetic radiation. Device uses optic sensors and principle of optical refraction to detect presence or absence of fluid. Typically LEDs are utilized as the source of light.
 
   Positive Pressure or Vacuum Sensor
 
     Detects pressure change in interstitial space of double-walled tanks.
 
   Ultrasonic Leak Detector
 
     Based on mass and/or microviscosity alterations of acoustic wave propagation. Detects the ultrasonic noise created by gas moving through a small orifice; or recognizes the attenuation and dielectric properties of the liquid or air present (piezoelectric SAW devices).
 
   Other
 
     Other unlisted or proprietary leak detection method.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Specific Detectable Liquid Types




   Specific Detectable Liquid Types       
   Your choices are...
 
      
 
   Water
 
     The detector is configured to detect water.
 
   Corrosive Fluids
 
     The detector is configured to detect acids, alkalines, etc.
 
   Petroleum Based Products / Fuels
 
     The detector is configured to detect any manner of petroleum based liquids or fuels.
 
   Other
 
     Other unlisted detectable liquid type.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Detectable Liquid Features




   Detectable Liquid Features:       
   Your choices are...
 
      
 
   Foam / Bubbles
 
     The detector can work with liquids with foam or bubbles.
 
   Dirty Liquids
 
     The detector can work with dirty liquids.
 
   Opaque Liquids
 
     The detector can work with opaque liquids.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Also Detects Gases / Vapors?
 
     The detector can also detect gasses or vapors.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
Liquid Temperature




   Liquid Temperature Range
 
     The sample temperature range the detector can operate in.
 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
Output Options




   Output Options:       
   Your choices are...
 
      
 
   Analog Voltage
 
     Any analog voltage output. Output voltage is a simple (usually linear) function of the measurement.
 
   Analog Current
 
     Often called a transmitter. A current is imposed on the output circuit proportional to the measurement. Feedback is used to provide the appropriate current regardless of line noise, impedance, etc. Useful when sending signals over long distances.
 
   Frequency / Modulated Frequency
 
     Frequency or modulated frequency output (e.g. sine wave, pulse train, AM, FM).
 
   Switch or Alarm Signal
 
     The output is a switch or alarm.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Detector Features




   Built in Alarm Indicator?
 
     Built in audible, visual etc. alarm. Not just a switch or relay closure.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Discriminating (Selective) Sensor?
 
     Distinguishes between different liquids / chemicals.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Intrinsically Safe?
 
     The detector is for use in areas, which may have an explosive atmosphere.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Submersible?
 
     Designed to be fully and continuously submerged in fluid.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
Environment




   Operating Temperature:
 
     This is the full required range of ambient operating temperature.
 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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