Differential Pressure Detectors are rugged,field-mounted instruments that incorporate a flexiblemodular design providing cost effective sensingsolutions. The two-piece piston design allows forcomplete differential pressure reversal withoutdamage.

Basic models with standard wetted parts are normally suitable for air, oil, water and non-corrosive process fluids.
Single Diaphragm differential pressure Detectors are suited forlow-to-high differential pressure, fluid power or process applications where high and varying static pressures, high overrange, proof, shock pressure or cycle rates are expected.

Built to high-quality standards for reliability, this detector is suitable for draft ranges commonlyassociated with HVAC applications and burnermanagement systems. It is also suited for otherindustrial air and gas services which arecompatible with the wetted parts. Standardmodels are available for weathertight orexplosionproofenvironments.

Basic models with standard wetted parts are normally suitable for air, oil, water and noncorrosive process fluids.
Corrosive service and particular user requirements may require optional components. Operating performance of the opposed piston type is optimized when system pressure is relatively constant. Process or fluid power applications that have high and varying static pressures, high over-range, proof, shock pressures or cycle rates may require High Static Operation DiffPress Detector.

Basic models with standard wetted parts are normally suitable for air, oil, water and non-corrosive process fluids.
Corrosive service and particular user requirements may require optional components.
Some is suited for low-to-high differential pressure process or fluid power applications where high and varying static pressures, high overrange, proof, shock pressure or cycle rates are expected. Some is suited for low-to-medium differential pressure process or fluid power applications where similar system behavior is expected.

The EDM temperature detectors utilize a vapor-pressure thermal system. Fluid vapor pressure changes predictably according to the influence of temperature on the sensing bulb. Process temperature changes cause proportional vapor pressure changes in the temperature sensing bulb that act on the diaphragm/piston assembly to actuate and deactuate a snap-action electrical switching element at discrete processtemperatures. The instrument’s behavior is determined by the vapor pressure principle.

EDM mechanical level detectors are rugged, industrial products specifically designed for versatility of application. This catalog contains application and ordering data for float and displacer-operated level switches. Detectors areavailable with flanged or sealed chambers or as insertion models.
Options available for each type of detector include: switch type and number, housing type, chamber material, process connections,accessories, and more.Units may be customized to suit customers’ needs.
Inside this catalog you will find solutions to your level sensing puzzles.EDM mechanical level detectors have many configurations available. If you don’t see what you need, we will engineer a solution for your application.

This Series mechanical liquid level detectors are float operated with a flanged, serviceable external chamber.

This Series mechanical level detectors are float operated with a sealed, tamper-proof external chamber.

This Series mechanical level detectors are float operated suitable for horizontal-insertion mounting.

This Series mechanical level detectors are float operated, horizontal mounted with sealed, tamper-proof or flanged, serviceable chambers.

This type is a horizontally mounted,float-operated level detector suitable for plantand OEM applications where open or closed contacts are required to signal presence orabsence of liquid at a discrete level. The float extension arm moves a magnet which actuates(deactuates) a hermetically sealed reed switch.Actuation (deactuation) can be reversed byrotating the unit 180 degrees.

This type is a horizontally mounted,float-operated level detector suitable for plant andOEM applications where pneumatic valveoperation is required to signal presence orabsence of liquid at a discrete level. The floatarm moves a magnet which in turn moves ashuttle that either blocks or allows pilot pressure to pass and operate ancillary equipment.Actuation (deactuation) can be reversed byrotating the unit 180 degrees or switchinginlet connections. The supply media must be filtered and oil free. Airis the usual media; however, any dry, filtered gascan be used.

This typeis a horizontally oriented, float-operated level detector suitable for plant and OEM applications where open or closed contacts are required to signal the presence or absence of liquid at a discrete level. The float extension arm moves a magnet which actuates (de-actuates)an electromechanical switching element.

This series mechanical level detectors are float-operated detectors suitable for top-insertion mounting.

This Series mechanical level detectors are single-stage/dual-stage /three-stage , displacer-operated switches suitable for top-insertion tank mounting.

Ultrasonic detectors are a cost-effectivesolution for your applications. Installation requiresmounting the sensor (threaded or flanged) to thevessel,connecting the power and control wires,and applying power. There is no additional set-upor calibration required. Since it is an electronicinstrument with no moving parts, preventivemaintenance is limited to an annual visual inspection. The only recommended spare part isthe “board” at a quantity of one board for every10 units. A technician with basic electrical skills (wiring) can service the instrument.

EDM flow detectors have proven to be workhorses in the process instrumentation industry.They are ruggedly built to exacting standards and provide long-lasting service.

EDM custom engineers nuclear-qualified pressure, temperature, differential and vacuum switches. Our engineering expertise is specifically targeted to meet the unique demands of the nuclear power eneration industry and provide solutions.

compliant
10CFR50, Appendix B
ANSI N45.2
NQA-1 (including reporting)
ASME Section III, subsection NC and ND

Qualified
by a combination of testing and analysis
IEEE-323-1974 & 1983
IEEE-344-1975 & 1987

Audited
Nuclear Procurement Issues Committee (NUPIC)
Nuclear Industry Assessment Committee (NIAC)
Canadian Technical Standards & Safety Authority (TSSA) N285.0