Dwyer Instruments - Product Applications

Application Guides

PRESSURE:

TYPICAL APPLICATIONS

Differential pressure gage assists operator in adjusting venturi pressure drop in dust scrubber

Digital Manometers used to check gas pressure to a heating burner

Gages indicate pressurization of special rooms

Filling scuba diver’s air tanks

Compact switch/gage monitors pressure, actuates alarm

Zero-center switch/gage controls the inert atmosphere in glove box

Series DA pressure switch maintains desired gas pressure in tank

Three-valve manifold simplifies installation of wet/wet differential pressure transmitter

MEASUREMENT OF PRESSURE WITH THE MANOMETER

AIR FILTER GAGES AND SWITCHES

INTRODUCTION TO PRECISION LOW RANGE DIFFERENTIAL PRESSURE SWITCHES

MEASURING AIR MOVEMENT

PRESSURE CONVERSION CHART

AIR VELOCITY:

TYPICAL APPLICATIONS

Transmitter signals precise air velocity adjustments to computer-controlled variable-speed fan motor

Either of two methods used to measure air velocity

Air velocity transmitter controls drying oven air flow

Determine air velocity and temperature levels in ducts or air supply grills

Eliminate the need for Pitot tubes, orifice plates, differential pressure sensors and temperature sensors with a Series VTT

Handheld anemometer enables measuring duct flow measurements

Measuring velocity or volume of air flow in duct

Air flow switch protects preheater from overheating

AIR VELOCITY MEASUREMENT WITH PITOT TUBES

AIR VELOCITY FLOW CHARTS

FLOW:

TYPICAL APPLICATIONS

Designers of a bio-medical incubator rely on a flowmeter to control CO2 flow

Flowmeters and/or differential pressure switches monitor vital purge gas flow to motors, switchgear, instruments

Metering valves on flowmeters control air/gas intake on permanent air pollution analyzers

Operator uses Mini-Master® flowmeter to verify air flow into portable dust monitor

Brass body gage measures water flow rates

Flotect® flow switch ensures cooling water circulation before air conditioning compressor motor starts

When main pump fails, Flotect® flow switch transfers to standby pump to maintain vital fluid circulation

Midwest Sight Flow Indicator reveals flow or stoppage

Flows of air and gases used in a special furnace are controlled by flowmeters

Durable dual-column flowmeter adds value for physicians and oral surgeons

Salt corrosion test cabinet includes a flowmeter for adjustment of bubbler air flow

Measuring air velocity with an orifice plate

INTRODUCTION TO FLOWMETERS AND SIGHT FLOW INDICATORS

CONVERSION CURVES FOR GASES

INTRODUCTION TO VANE OPERATED FLOW SWITCHES

SERIES DS 300/400 FLOW CALCULATOR

HUMIDITY & AIR QUALITY:

TYPICAL APPLICATIONS

Quickly measure humidity and temperature levels in ambient air

Accurately measure and control the humidity and temperature in office buildings

Greatly reduce the time it takes to dry wood

Economizers lower energy cost by using less conditioned air

Temperature and humidity measurements used to optimize the growth of hogs and poultry

Conserving energy by conditioning occupied rooms

TEMPERATURE:

TYPICAL APPLICATIONS

Environmental chamber control simplified with dial zone control

Controllers used within heater controllers

Controllers involved in insulation removal

Series TS Digital Temperature Switches regulate temperature in chillers and display cases

Form, fill and seal machine control simplified with dual zone control

Controllers used in the packaging of condiments

Resin transfer molding

Controlling water temperature in outdoor wood furnace

TEMPERATURE SENSORS

TEMPERATURE SENSOR TERM DESCRIPTIONS

LEVEL:

TYPICAL APPLICATIONS

Series PLS is used to indicate level status in pneumatic conveying systems

Pump controller with level transmitter control pumps in wastewater lift stations

Grain hopper level controlled by Series PLS Paddle Level Switch

Custom level sensing devices are built to meet each customer’s specific requirements, providing visual indication, continuous measurement, and point level control

Displacer type level control is ideal for controlling industrial sump pumps

Low level float switch enables sensing in air conditioner drip pans and other shallow level applications

Model 123 level controls provide high and low alarm on large de-aerator tank

Series OLS indicates level in heavy equipment radiator

INTRODUCTION TO LEVEL CONTROLS

PROCESS CONTROL:

TYPICAL APPLICATIONS

Barrier completes intrinsically safe system for wastewater lift station level monitoring

Dust Collector Timer Controller shows filter condition in dust collector

Automatic filter cleaning control system

Bag house cleaning system uses Dust Collector Timer Controller to initiate optimum cleaning cycle Bag House

Detect broken filters in dust collectors

Monitoring belt conveyor for proper operation

Providing remote indication of pressure, humidity or temperature

Monitor the status of your fan or pump

DATA LOGGERS & RECORDERS:

TYPICAL APPLICATIONS

Data loggers simplify performance assessment for multiple transmitters and other measurement devices

Button Data logger monitors food and beverage temperature in refrigerated transport vehicles

Monitor the test environment for accurate laboratory tests

Temperature and humidity monitoring in wine cabinets

TEST EQUIPMENT:

TYPICAL APPLICATIONS

Current/voltage signal generator used to calibrate panel meters

Combustion analyzer maximize boiler efficiency while monitoring harmful products of combustion Boiler

Maximize the effectiveness of chlorine in swimming pools

Field calibrate and certify pressure gauges

VALVES:

TYPICAL APPLICATIONS

Process temperature control using pneumatic Hi-Flow™ control valves

Water-side Economizer System includes ABFV 3-way butterfly valve for accurate control of flow

Quick response Hi-Flow™ valves control water flow in cooling process

Mark Series valve position indicator is perfect for valve position indication on offshore oil rigs

INTRODUCTION TO VALVES