This submersible sensor & instrument selection guide will help you select products for installations where the instrumentation will be completely submerged.
Measurement & Instrumentation Guides
Guidance and reference articles for sourcing, setting up and using measurement equipment.
Air Pressure
Pressure sensors, digital pressure gauges, manometers, calibrators and data loggers for measuring pneumatic air pressure.
High Temperature Protection
High temperature protected sensors and instruments for taking measurements of very hot liquid or gases.
Hygienic
Hygienic measurement instrumentation are designed for use by the food, drink and pharmaceutical industries, which require a high level of cleanliness in their manufacturing processes.
Hydrostatic Pressure
Hydrostatic pressure is the pressure that is generated by the weight of liquid above a measurement point, when the liquid is at rest.
EPDM – Ethylene Propylene Diene Monomer
EPDM is a type of rubber seal material which offers excellent resilience against solvents, antifreeze and aviation hydraulic fluids.
Wet/Wet
Wet/Wet describes a differential pressure measurement device which is compatible with liquid on both the positive and negative side process connections.
Wet/Dry
Wet/Dry describes a dp measurement device for use with a liquid on the positive pressure side and a dry/non-condensing gas on the negative pressure side.
Wetted Parts
Wetted Parts are the measurement side components of a sensing device which are in contact with the liquid media to be measured.
TEB – Temperature Error Band
Temperature Error Band (TEB) is the error derived from the most positive and negative deviation of all measurement points within a measurement range over the operating or compensated temperature range.
Temperature Compensation
Temperature Compensation is a correction applied to a measurement instrument to reduce errors attributed to temperature changes in a process media which is being measured or in the surrounding environment that the instrument is being used.
SOI – Silicon on Insulator
Silicon on Insulator (SOI) is a type of material technology which can be utilised in the manufacture of pressure sensor diaphragms to allow operation at higher temperatures.
PVC – Polyvinyl Chloride
PVC is a widely used plastic which is cheap to produce and hard enough to be used as a component parts construction material.
PUR, PU – Polyurethane
Polyurethane is a durable polymer used for coating cables, a water tight sealing compound and a potting compound to protect electronics from damage.
FFKM – Perfluoroelastomer
Perfluoroelastomer (FFKM) is a seal material type which has a much higher temperature rating than the more common FKM and can be used on temperatures up to 300°C. FFKM also has a broader chemical resistance than FKM.
Oxygen Service
Select Oxygen service measurement products to use in atmosphere which contains high levels of Oxygen or measure gas containing high concentrations of O2
Isolation Diaphragm
An Isolation diaphragm is a thin membrane which is used to isolate the media on one side of a diaphragm from media on the other side.
IP Ratings
The IP Rating is an accepted engineering standard for defining the protection of electrical equipment from dust and moisture ingress.
Flush Diaphragm
A guide to flush diaphragm pressure & level measurement instrumentation, including explanations, applications and a choice of products with flush process fittings.
FKM – Fluoroelastomer
Fluoroelastomer is a fluorinated carbon based rubber material which is mostly used on pressure measurement equipment to seal joints between components which are either pressurised or water-tight.
Dry/Dry
Dry/Dry describes a differential pressure measurement device which is only compatible with dry/non-condensing gas on both the positive and negative pressure side.
Dry Cell
Pressure sensing technology which excludes any fluid filled components. The advantages of a dry cell pressure sensor are: More sensitive and responsive to measuring low pressures No risk of oil contamination if the containment isolation diaphragm fails. Compact size Lower cost of manufacture
FEP – Fluorinated Ethylene Propylene
Fluorinated Ethylene Propylene (FEP) is a resin coating that has a very high chemical and temperature resistance.
Bonded Seal
Bonded seal is a metal washer with an elastomer seal bonded to its inside diameter, which is used to provide a pressure seal when placed between two flat surfaces that are screwed together using a male and female parallel thread.
Material Compatibility Resources
Incompatibility between a sensor and the media being measured is one of the major causes of premature failure.
Food Grade
Food grade products and substances are designed to be safe when used inside equipment and processes which are used in the production of food, pharmaceuticals and drink. Food grade products and substances prevent contaminant substances from entering the food manufacturing process which could cause physiological harm.
Al2O3
Al2O3 is the chemical formula for Alumina (Aluminium Oxide) which is a ceramic material that has high caustic chemical resistance and electrical insulation.
Measuring the volume of liquid in a horizontal cylinder tank
We have a horizontal cylindrical type tank which has a diameter of 2 meter and a length of 7 meters. This tank is used for storage of chemicals.
Measuring the Pressure of Hot Media
Installing pressure sensors close to high temperatures can lead to significant measurement errors and irreparable damage to the sensor & electronics.
Stainless Steel Pressure Sensors
There are many materials used for constructing pressure sensors, but those made from stainless steel are considered the most reliable and durable.
Considerations for monitoring Landfill Water Level
In recent years regulations for environmental control, health and safety issues have become much more stringent for existing and new landfill sites. The regulations encompass many considerations and some involve the measurement and control of water level in many positions around a waste disposal site. One application is ensuring contaminated water is contained within a […]
Understanding operating temperature limit specifications for pressure transducers
Understanding the temperature limitations of a pressure transducer will help you extend the service life and prevent premature failures.