LEVEL SENSORS AND TRANSDUCERS

Level includes Bin Vibrators - ideal in high vibration. Pump Controllers monitor pump levels and leaks. Level Indicators are customizable to fit any application. Level Switches come in diaphragm, tuning fork, and more. Level Transmitters are capacitive, float, submersible, or ultrasonic. Water Leak Detectors monitor water levels.

Level Indicators

Level Indicators indicate level. Both products available can be customized. There is a choice of a compact "mini" size or the customizable full size. Dwyer's indicators incorporate a pressure tight housing with internal float.

Series MVR

Customized, Visual Level Indication, Compact Size

Mini View-Rite Level Indicator is ideal for high-visibility level indication in tight spaces. Applications include pharmaceuticals, medical equipment, food and beverages, boilers, and semiconductor manufacturing.

Series VR

Customized to Fit Any Application, Durable, 316 SS Housing and Float

View-Rite Level Indicator provides customized level indication. Low maintenance, environmentally friendly, durable, and require no external power. Applications include oil & gas and boilers.

Pump Controllers turn on and off pumps to maintain specific levels in tanks. This category contains protectors and controllers.

Series MPCJR

One or Two Pump Control with Built-In Alternation. Pump Controller provides versatile level control. Featured two additional programmable alarm contacts with front alarm light indication. Applications are oil tanks and reservoirs.

Series QPC

Multiple Loads, SOSO or FOFO Output Logic. Quadraplex Pump Controller is where four pumps are required to alternate to provide equal run time on each. The loads are energized in the same manner as the SOSO sequence.

Series MPC

One or Two Pump Control with Built-In Alternation, Over Temperature Protection and Seal Failure Monitoring. Pump Controller provides versatile level control. Designed for use with style level transmitters. Flexible and incorporates a user-friendly programming menu.

Series DPC

Dual Pump Protection. Duplexing Pump Controller is used where two pumps are required to alternate to provide equal run time on each. Two LED indicators show the load energized by the SPDT output relay.

Model LDT

Shaft Seal Leak and Stator Temperature Monitor. Leak/Over Temperature Detection Relays monitor the shaft seal and the stator temperature of a submersible pump to detect a leak. Installation is made simple with a surface mount configuration.

Series DLD

Shaft Seal Leak Protection. Dual Channel Leak Detection Relay monitors the shaft seals of two submersible pumps to detect a leak before pump failure. Leak is detected by sensing the status of a float.

Series PPM

1/8 DIN, Dual-Line 6-Digit Display, Flow Rate and Totalizer. Dual-Line Pulse Input Rate/Totalizer displays flow rate and total simultaneously. Applications include level monitoring, flow totalization, and pump control.

Series MPM

1/8 DIN, Dual-Line 6-Digit Display, Multi-Pump Alternation Control. Dual-Line Pulse Input Meter is weatherproof, UV resistant, large, and dual line display which makes it easier to read. Offers programmable delay time.

Series APM

Multi-Pump Alternation Control, Open-Channel Flow, Rate and Totalizer. Dual-Line Analog Input Rate/Totalizer applies to level monitoring, pump control, flow rate indication, and process control. Designed for displaying flow rate and total from a flow meter.

Conductivity level switches are sensors with an electrical contact output at a specific liquid level. Applications include ponds, reservoirs, sumps, pharmaceuticals, closed vessels and open tanks.

Model DPL110

Tank High/Low Control, Conductivity Technology, Up to 72" Probes

Dual Point Level Switch maintains liquid level high and low limits. Applications include ponds, food and beverage, sumps, reservoirs, pharmaceuticals, and sewage and wastewater.

Series LLC

Single Point or Differential Level Service, Compact Size, Up to 6 ft. (1.82 m) Probes.

Conductivity Controller controls valves, pumps, and alarms. Stainless steel probes, LED mounting, surge protection, low voltage sensor and different mounting options.

Series CLP

Low Cost, Compact Design

Conductivity Level Probe is used to determine the presence of a conductive liquid at a set level by sensing conductivity. The probes allow for the measurement of conductivity. A few applications include closed vessels and tank level control.

Displacer

Displacer level switches are sensors with an electrical contact output at a specific liquid level. Models are suspended on a coil spring. Displacers are not affected by turbulence or pressure and are excellent for applications with viscous or dirty liquids. Applications include foaming liquids, heavy oil refineries, paints & varnishes, and chemical plants.

Float

Float level switches are sensors with an electrical contact output at a specific liquid level. Applications include level control, valve control, deaerators, condensate tanks, oil level control, drip legs, and boilers. A few models are designed for the automation of pumps, specifically filling and draining of tanks, wells, and reservoirs.

Optical

Optical level switches are sensors with an electrical contact output at a specific liquid level. Dwyer models are low cost and compact. Optical level switches provide rapid response while employing mo moving parts. Applications include air conditioning systems, sumps, pharmaceutical, hydraulic reservoirs, and liquid holding tanks.

Series OLS

Low Cost, Compact, LED Indication, No Moving Parts Optitrol® Optical Level Switch is low cost and employs an LED. Applications include food and beverage systems, liquid holding tanks, hydraulic reservoirs, sumps, pharmaceutical systems, and air conditioning systems.

Level Transmitters are sensors with an electrical transmission output for remote indication of liquid, powder or bulk level. Capacitive, float, mechanical, submersible, and ultrasonic models are the different types available of level transmitters.

Submersible

Series PBLT2 & PBLTX

Perfect for Sludge and Slurries, Lightning Protected, Intrinsically Safe

Submersible Level Transmitter is used in harsh environments and incorporates lighting and surge protection. A few applications include wastewater, sumps, reservoirs, alum tanks, and oil tanks.

Series SBLT2 & SBLTX

Perfect for Ground Water and Wells, Lightning Protected or Intrinsically Safe

Submersible Level Transmitter has applications water tanks, down hole, and well monitoring. Measures the height of liquid above the position in the tank.

Series MBLT

Only 0.63" (16 mm) in Diameter, Perfect for Wells and Boreholes, Up to ±0.10% Accuracy

Miniature Submersible Level Transmitter has low power voltage models available. A few applications include ballast tanks, dewatering, down hole, and narrow conduit or pipe installations.

Series FBLT

Perfect for Sludge and Slurries, Lightning Protected, ±0.25% Accuracy

Flush Tip Submersible Level Transmitter is designed with a flush diaphragm tip that does not clog in harsh applications. Measures height of liquid above the position it is mounted on, whether it is a tank or pit.

Ultrasonic

Ultrasonic level transmitters are sensors with an electrical transmission output. Explosion-proof, remote sensor, and cellular models available. Applications include process tanks, chemical processing, and water & wastewater. Ultrasonic technology with temperature compensation provide accurate and reliable measurements.

Model ULTM

SMS Capability, Can Be Battery Powered

Ultrasonic Level Transmitter - Mobile- Ideal for managing fuel tanks at remote sites. Fit for harsh weather conditions and installation is simple in a variety of locations.

Model ULSL

18' (5.5 m) Measuring Range, Non-Contact Transmitter, 4 SPST Programmable Relays

Ultrasonic Level Sensor provides non-contact, ultrasonic level measurement of fluids for short range applications. Applications are pulp & paper processing, sump & process tanks, and chemical processing.

Model ULSM

9.8'(3 m) Measuring Range, Non-Contact Transmitter, 4 SPST Programmable Relays

Ultrasonic Level Sensor provides non-contact, continuous ultrasonic level measurement of fluids for medium range applications. Pairs with automatic temperature compensation.

Model ULSS

4.1' (1.25 m) Measuring Range, Non-Contact Transmitter, SPST Programmable Relays

Ultrasonic Level Sensor provides non-contact. continuous ultrasonic level measurement of fluids for short range applications. A few applications are water and wastewater, sump and process tanks, and chemical processing.

Inductive proximity sensors detect the presence of metallic objects. Their operating principle is based on a coil and high frequency oscillator that creates a field in the close surroundings of the sensing surface. The presence of metal in the operating area causes a change in the oscillation amplitude. This change is identified by a threshold circuit, which changes the output of the sensor. The operating distance of the sensor depends on the coil’s size as well as the target’s shape, size and material.

Capacitive sensors are used for non-contact detection of metallic objects & nonmetallic objects (liquid, plastic, wooden materials and so on). Capacitive proximity sensors use the variation of capacitance between the sensor and the object being detected. When the object is at a preset distance from the sensitive side of the sensor, an electronic circuit inside the sensor begins to oscillate. The rise or fall of such oscillation is identified by a threshold circuit that drives an amplifier for the operation of an external load. A screw placed on the backside of the sensor allows regulation of the operating distance. This sensitivity regulation is useful in applications, such as detection of full containers and non-detection of empty containers.

Magnetic sensors are actuated by the presence of a permanent magnet. Their operating principle is based on the use of reed contacts, which consist of two low reluctance ferro-magnetic reeds enclosed in glass bulbs containing inert gas. The reciprocal attraction of both reeds in the presence of a magnetic field, due to magnetic induction, establishes an electrical contact.

Photoelectric sensors use light sensitive elements to detect objects and are made up of an emitter (light source) and a receiver. We offer three types of photoelectric sensors are available.

Photoelectric sensor types:

Direct Reflection (Diffused) - emitter and receiver are housed together and use the light reflected directly off the object for detection.

Reflection with Reflector (Retro-reflective) - emitter and receiver are housed together and require a reflector. An object is detected when it interrupts the light beam between the sensor and reflector.

Thru Beam - emitter and receiver are housed separately and detect an object when it interrupts the light beam between the emitter and receiver.

Single Point Level Switches

Fluid Level Sensors & Control Switches

Gems offers the broadest selection of single point liquid level switches anywhere. Our switches are available in a vast range of sizes, mountings and materials and sensing technologies. Gems float-level switches with proven reed switch design offer trouble-free service with precise repeatability. Our electro-optic liquid level sensors are compact with solid-state switching and no moving parts. Gems ultrasonic liquid level switches are ideal for applications requiring solid-state level measurement such as ultra-pure, dirty, coating, scalding or corrosive type liquids. Our new capacitance level sensors are available in contact and non-contact versions. Gems' new XLS-1, an Ultrasonic Level Sensor, is an ideal compliment to the existing CAP-300 in that it has a similar design footprint, but can detect oil, while the CAP-300 cannot. The XLS-1 can also detect many other harsh chemicals, while ignoring foam and condensation.

FLOAT LEVEL SWITCHES & SENSORS WITH MAGNETIC REED SWITCHES

Large Float Switches

Small Size Single-Point Float Switch

Large Size Single-Point Level Switch

Side Mount Float Switches

Specialty Float Level Sensors

Water Detection & Leak Sensors

ELECTRO-OPTIC LEVEL SWITCHES

Alloy Electro-Optic Level Switches

Plastic Electro-Optic Level Switches

Alloy Electro-Optic Level Switches

Opto-Pak Controllers

CAPACITIVE LEVEL SENSORS & SWITCHES FOR AQUEOUS AND NON-AQUEOUS FLUIDS

CAP-100 Series Capacitive Level Switch

CAP-150 Series Capacitive Level Switch

CAP-200 Series Capacitive Level Switch

Capacitance Level Sensor - CAP-300 Series

ULTRASONIC LEVEL SENSOR

XLS-1

XLS-1 Ultrasonic Level Sensor

WIF-1250 WATER IN FUEL SINGLE POINT LEVEL SENSOR

Multi-Point Level Switches

Gems custom length multi point level switches are an extremely versatile cost effective way to monitor multiple liquid level points within a single tank. These multi point units can be configured with two to seven independent switch actuation levels, depending on the series type. Only a single entry point into the tank is required, and all electrical wiring emanates from a single source. In addition to tracking changing level points of a single liquid within a tank, multi point level switches are ideal for monitoring liquid interfaces and emulsions in vessels simultaneously containing two or more liquids. Gems multi point level switches are available in engineered plastic or metal alloy with a broad range of mounting options and float materials. Gems multi point level sensors are offered with integrated siphon tubes and temperature sensors to provide cost savings and limit the number of intrusions into a tank. Multi point Level Sensor Combo is the answer. This accurate and reliable sensor offers a non-contact alternative to our float of conductance sensors in small tank chemical feed or handling applications when corrosive, sticky or dirty media are present. The UCL-510 features programmable level intelligence and can be reconfigured for different sensing duties.

FLOAT LEVEL SWITCHES

Small Size Multi-Point Level Switches

Large Size Multi-Point Level Switches

UCL-510 ULTRASONIC WATER LEVEL

Continuous Level Transmitters

Gems float type liquid level transmitters provide reliable and durable remote tank gauging. A wide variety of material combinations make them compatible with most liquid media. The XM & XT-800 Series provide solutions for most small to mid-size tanks, for deeper tanks look to the 36000 and 66000. For challenging fluids such as ultra-pure, dirty, coating, scaling and corrosive types, Gems offers the UCL-510 and UCL-520 ultrasonic liquid level transmitters. Our UCL series are easy to install and do not come in contact with the liquid. The UCL-520 is push button the calibrated, the UCL-510 is supplied with configuration software for flexible system integration or retrofit of existing level devices. For applications requiring an extremely high level of accuracy Gems new CT-1000 potentiometric level transmitter offers no-moving parts sensing of conductive liquids. The XT-1000 magnetostrictive liquid level transmitter provides temperature compensated measurement on a variety of liquid media.

Submersible Pressure Transducers

Gems float type liquid level transmitters provide reliable and durable remote tank gauging. A wide variety of material combinations make them compatible with most liquid media. The XM & XT-800 Series provide solutions for most small to mid-size tanks, for deeper tanks look to the 36000 and 66000. For challenging fluids such as ultra-pure, dirty, coating, scaling and corrosive types, Gems offers the UCL-510 and UCL-520 ultrasonic liquid level transmitters. Our UCL series are easy to install and do not come in contact with the liquid. The UCL-520 is push button the calibrated, the UCL-510 is supplied with configuration software for flexible system integration or retrofit of existing level devices. For applications requiring an extremely high level of accuracy Gems new CT-1000 potentiometric level transmitter offers no-moving parts sensing of conductive liquids. The XT-1000 magnetostrictive liquid level transmitter provides temperature compensated measurement on a variety of liquid media.

1200/1600 SERIES PRESSURE TRANSDUCERS

2200/2600 SERIES PRESSURE TRANSDUCERS

6700 SERIES PRESSURE TRANSDUCER

Conductive Level Switch and Probes

Warrick® Conductivity level control systems rely on the liquid level sensing capability of probes (electrodes) that are housed inside fittings designed to accommodate one or more probes. The concept is simple: take advantage of a liquid’s conductive properties to complete a circuit and cause a control relay to actuate. These single- or multi-point sensors have no moving parts and the stainless steel corrosion-resistant electrodes can be cut to the desired length. Multiple probes per fitting allow control of several functions in less space with less expense for equipment and installation. To create a system select from numerous level controls, fittings and probe options. For OEM’s we also have the capability to custom configure liquid level control sensors and electrode fittings to meet your specific conductivity level control application requirements.

Flow Switches - Gas Flow & Liquid Flow Switch

Unique Designs...For use in Liquids or Gases Gems™ line of flow switches feature a broad range of configurations for use in liquids or gases. At preset rates, ranging from 50 cc/min to 100 GPM, Gems switches will initiate alarm actuation or automatic shut-down of a system.

These switches feature high quality, corrosion-resistant materials for use in the toughest environments. Material choices, ranging from stainless steel to Ryton offer vast chemical compatibility. Versions include switches with fixed or adjustable actuation settings, models for viscosity compensation or high pressures, in-line models and designs to satisfy any mounting or space requirement.

Variety of Operating Principles The versatile Gems flow switch line utilizes four basic operating principles. Piston types are designed for low flow rates in gases and liquids from 50 cc/min to 20 GPM. Shuttle models are for use with high flow rates from .5 GPM to 100.0 GPM. Paddle models are for large line sizes from 1.25" (32 mm) and up. Electronic switches encompass state-of-the-art electronics and positive visual indication.

Electronic Flow Sensors - Flow Indicator

ROTORFLOW SENSORS

RFS Type Electronic Flow Sensor

RFO Type Electronic Flow Sensor

RFA Type Electronic Flow Sensor

RFI Type Visual Flow Indicator

TURBINE FLOW SENSORS - LOW FLOW METER

FT-110 Series Turbine Flow Sensor

FT-210 Series Turbine Flow Sensor

FT-330 Series Turbine Flow Sensor

Pressure Switches & Sensors

Gems™ Pressure Switches Cover A Wide Range of Applications From 2 to 6000 psi (40 mbar to 400 bar) Gems offers a choice of pressure switches, water pressure switches from compact cylindrical models for OEM use, to larger, enclosed units for rugged process applications. These water pressure switches are ideal for the filtering process of coolants in the machine tool industry, use in transmissions of off-highway vehicles and as redundant systems with existing monitors such as transducers.

Unique Piston/Diaphragm Design A piston/diaphragm design, incorporating the high proof pressure of piston technology allows these pressure switches to operate with the sensitivity and accuracy of a diaphragm design. Repeatability ranges from 0.25 percent to 5 percent of the set point.

Many Materials To Choose From Enclosures include aluminum, stainless steel, brass, reinforced plastic and zinc-plated steel. Wetted parts include a diaphragm available in Buna-n, Teflon® coated Kapton®, stainless steel, PTFE, EPDM or Viton® and a pressure port available in stainless steel, brass, zinc or aluminum.

Pressure Transducer & Oil Pressure Sensors

Gems™ Pressure Transducers Deliver Top Performance and Value Under Pressure! When your applications require exceptional pressure sensing performance and long-life reliability, look to Gems to deliver. From vacuum to 10,000 psig (-1 to 689 bar), we've got you covered with the industry's largest selection and best choice of pressure transducer technologies. Our capacitance type sensors are ideal for high volume use; sputtered thin film types are the most precise pressure sensors you can buy, and our other types satisfy all requirements in between.

Typical Pressure Transducer Applications

Off-Highway Vehicles -- Load Weighing Systems and Load Moment Indicating

Natural Gas Equipment -- Compressors and Dispensing Equipment

Semiconductor Processing -- Wafer Manufacturing

Power Plants -- Piping Steam Pressure

Refrigeration -- Compressors and Lube Oil Pressure Sensor & Equipment

Robotics -- Factory Automated Equipment

Test & Measurement -- Dynamometers, Medical Instrumentation, Wind Tunnels

Barometrics -- Altimeter certification, Weather Stations

HVAC -- Compressors, Filter Monitoring, Energy Management

Transportation -- Breaking, Compressors, Lifts, Air Conditioning

Psibar® CVD Type Pressure Sensors Chemical Vapor Deposition manufacturing methods bond a polysilicon layer to a stainless steel diaphragm at the molecular level to produce a sensor with superior long term drift performance. Common batch processing semiconductor manufacturing methods are used to create a polysilicon strain gauge bridge with terrific performance at a very reasonable price. CVD construction offers excellent price/performance and is the most popular sensor for OEM applications.

Sputtered Thin Film Type Pressure Sensors Sputtered film deposition creates transducers with maximum combined linearity, hysteresis and repeatability. Accuracy is as high as 0.08% full scale with long term drift as low as 0.06% full scale per year. Phenomenal performance for critical instruments -- Gems sputtered thin film transducers are the jewels of the pressure sensing industry.

Capacitance Type Pressure Sensors Gems manufactures capacitance type pressure sensors for a wide range of high volume OEM specialty applications. Detecting the capacitance change between two surfaces allows Gems transducers to sense extremely low pressure and vacuum levels. Robust construction allows these units to be used in a wide variety of applications. Coupled with an ASIC, these units provide good price/performance in a host of packaging styles.

MMS Type Pressure Sensors These transducers employ a micomachined silicon (MMS) diaphragm to detect pressure changes. The silicon diaphragm is protected from the media by an oil-filled 316SS isolation diaphragm; they react in tandem to process fluid pressure. MMS sensors utilize common semiconductor manufacturing techniques that allow for high proof pressure, good linearity, great thermal shock performance and stability in a thin sensor package.

Excellent Repeatability, Reliability

Sensing Ranges from Vacuum to 10,000 psi (-1 to 689 bar)

Broad Range of Sensing Technologies:

Chemical Vapor Deposition

Sputtered Thin Film

Capacitance

MMS

Oil pressure sensor

NOSHOK is an industry leader providing highly reliable and repeatable industrial pressure transducers and transmitters. Multiple measuring ranges, output options, process connections and electrical connections are available. NOSHOK Industrial transducers and transmitters are ideal for applications such as HVAC, hydraulics and pneumatics, injection molding machines, railroad equipment and stamping & forming presses, power generation, and aerospace equipment.

NOSHOK OEM pressure transducers/transmitters include compact, high volume and RoHS compliant models. These sensors are ideal for applications including HVAC, hydraulics and pneumatics, mobile hydraulics, injection molding machines, railroad equipment, stamping & forming presses, and transportation. Multiple measuring ranges, accuracies, and electrical output options are available.

NOSHOK's rugged hazardous location approved pressure transmitters include explosion-proof, non-incendive, intrinsically safe and hammer union models. These NOSHOK transmitters combine the reliability and long life of diffused semiconductor and proven sputtered thin film sensor technology with robust electronics for outstanding performance and repeatability. They are ideal for applications such as oil field, pipeline gas compressor, offshore, chemical/petrochemical, water/wastewater and marine., and carry CSA, FM and CE certifications.

3540 Series Tension & Compression Force Transducers

2351 Series S-Type Force Transducers

Custom Force Sensors

3010 Series Chain Hoist Test Kit

3020 Series Weld Force Test Kit

UHP PRESSURE & VACUUM TRANSDUCERS

Wasco offers many pressure sensors series to meet multiple applications. Wasco has the capability to customize pressure solutions using:

MEMS Based

Oil-Filled MEMS Based

Bonded Strain Gauge

Thin Film

TF1 - All Welded Oil Filled Stainless Steel Pressure

TM - MEM’s Based

TM- Series MEMS Backside High Accuracy

High Volume

TB - Bonded Strain Gauge Based

High Pressure

High Accuracy Test and Measurement

Wasco's Typical Applications:

Compressors

Defense Ground Support

Food Processing

Milk Distribution

Milk Processing

Ozone Generation

Pick and Place / Surface Mount

Pumps

Furnaces

Fire Suppression Systems

HVAC

Hydraulic Applications

Semi Conductor

Gas Stick

Gas Delivery

Systems Requiring Vacuum Confirmation

Water / Wastewater Systems

Wasco’s Barracuda Series of Ultra High Purity (UHP) Sensors are designed for applications that require sensing of a corrosive media in demanding market applications. These transducers are designed to sense gaseous or liquid media without introducing contamination to the process media.This series is perfect for systems that require sensing of corrosive media in a high accuracy, tight tolerance application