Dwyer Instruments Inc.
Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development,
- 219/879-8000
- 219/872-9057
- lit@dwyer-inst.com
- P.O. Box 373, 102 Indiana Hwy. 212
Michigan City, IN 46361
United States of America
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Product
Digihelic Differential Pressure Controller
DH
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The Series DH Digihelic Differential Pressure Controller is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time and money.
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Product
Mini-Photohelic Differential Pressure Switch/Gage
MP
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The Series MP Mini-Photohelic differential pressure switch/gage combines the time proven Minihelic II differential pressure gage with two SPDT switching setpoints. The Mini-Photohelic switch/gage is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases.
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Product
SSR Monitor
LTT
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Love Controls LTT Series SSR Monitors allow easy monitoring of the operation of your SSR switches. This handy device compares the input status with the output status. An alarm operates a relay contact to tell you if the load circuit has opened or if the SSR has shorted.
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Product
Weatherproof Pressure Transmitter
679
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The Series 679 Pressure Transmitter is compatible with a wide range of gases and liquids, and is specially designed for weatherproof service (NEMA 4/IP56). The Model 679 can measure pressures with an accuracy of ±.25%. This model provides a 4-20 mA output and is field adjustable.
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Product
Differential Pressure Transmitter
636D
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The Series 636D Differential Pressure Transmitter can be used for measuring pressures of liquids, gases & vapors. All available ranges have an excellent 0.5% F.S. accuracy with a 4-20 mA Output standard or optional 1-5 VDC output.
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Product
Diaphragm Operated Dual-Action Pressure Switch
H2
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Explosion-proof, UL & CSA Listed for Class I, Groups B, C & D and Class II, Groups E, F & G. The H2 is designed for sequencing two different actions as pressure of a liquid or gas increases or decreases. The patented design consists of two concentric pistons operated by a single diaphragm with one pressure chamber.
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Product
Compact Differential Pressure Transmitters
Series 668B/D
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Our low cost SERIES 668B/D Compact Differential Pressure Transmitters are capable of sensing differential gage pressure with ±0.8% FS accuracy, and converts this pressure difference to a proportional high level analog output for both unidirectional and bi-directional pressure ranges. These transmitters can withstand up to 15 psig overpressure with no damage to the unit. The compact, lightweight design makes installation simple and easy. Units are protected against incorrect wiring, and include a protective terminal cover.
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Product
Diaphragm Seal for DA Series Pressure Switch
XTBX
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The Series XTBX is a diaphragm seal constructed of PVC and FEP making it perfect for corrosive applications that would damage metal wetted material pressure switches. The seal is available direct mounted on all model DA pressure switches with ranges under 100 psi (6.9 bar). Ideal for commercial pool/spa applications for pump shut down due to excessive vacuum.
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Product
Temperature/Process Controller
2600
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Series 2600 Temperature/Process Controllers set a new standard for quality, versatility, ease-of-use and value. While they include a high level of standard features, many function setup items appear in the control menu only when the function is selected, so you don?t have to wade through unnecessary items.
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Product
Temperature Panel Meter
LTI
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The Series LTI Temperature Panel Meters can be configured in a variety of configurations to provide visual indication and control of a process temperature. Field pluggable modules are available to add additional relay outputs, digital I/O ports, and serial communications. Utilizing an easy-to-read, dual 6-digit display, more descriptive programming parameters are displayed to simplify initial setup.
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Product
Molded Plastic Manometers
Mark II
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Dwyer Mark II series molded manometers are of the inclined and inclined-vertical types. The curved inclined-vertical tube of the Model 25 gage provides higher ranges with more easily read increments at low readings.
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Product
Stainless Steel Schaeffer Gage
SGO
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The Series SGO Gages have dual English/metric scales with ±1.6% full scale accuracy. The Series SGO gages are designed with 304 SS housing, a 316L SS chamber and PTFE coated diaphragm for excellent chemical compatibility
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Product
Wet/Wet Differential Pressure Transmitter
647
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Monitor differential pressure in air/liquid flow systems, HVAC automation, pneumatic systems and process control with the Series 647 Wet/Wet Differential Pressure Transmitter. Units are temperature compensated and provide a 4 to 20 mA output signal which can be interfaced with chart recorders, data loggers and computerized monitoring and control systems.
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Product
Large Diaphragm Differential Pressure Switch
1630
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Our highest precision conventional large diaphragm pressure switch provides maximum dependability. In addition, it incorporates a visible set point indicator for maximum convenience. UL and CSA listed, FM approved for general service, these switches are suitable for most applications in air conditioning and industrial service.
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Product
Low Differential Pressure Switch -
1800
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Essential for industrial environments, the Series 1800 combines small size and low price with 2% repeatability for enough accuracy for all but the most demanding applications. Set point adjustment inside the mounting stud permits mounting switch on one side of a wall or panel with adjustment easily accessible on the opposite side. UL and CSA listed, and FM approved.
