<p><strong>Dwyer, 616KD-LR-D72-ND2, Series 616KD-LR Differential Pressure Transmitter, 0.5% FS, -60-0-60 Pa Range, NPT with Front Push Button, 0-5 V </strong> </p> <p><strong>Series 616KD-LR Low Range Differential Pressure Transmitter </strong> </p> <p>The Series 616KD-LR Differential Pressure Transmitter is designed for simplicity, making it the ideal choice for installers and maintenance professionals. These low range instruments not only alleviate cumbersome turn pots typically found in most transmitters, but eliminate entirely the need to span the instruments during calibration. No additional reference pressure sources or separate calibration devices are necessary. </p> <p><strong>Applications: </strong> </p> <ul><li>Air handlers </li> <li>Duct pressure </li> <li>Variable air volume </li> <li>Filter monitoring </li> </ul> <p><strong>Features: </strong> </p> <ul><li>Wide selection of low ranges and accuracy cover numerous applications minimizing components and standardizing on design </li> <li>Simple calibration push-buttons to set zero and span, saving time installing and maintaining over the service life </li> <li>Cost effective and compact device suitable for OEM applications where space, simplicity, and value are key </li> <li>Simultaneous current and voltage outputs </li> <li>Accuracy - 0.5% </li> <li>Process Connection - NPT with Front Push Button </li> <li>Output - 4-20 mA & 1-5 V </li> <li>Range - (-60-0-60 Pa) </li> </ul>
<p><strong>Dwyer, 626-12-CB-P1-E3-S1, Series 626 Industrial Pressure Transmitter, 0.25% Full Scale Accuracy, 0 to 200 psi, Conduit Box Housing, 1/4" Male NPT, Cable Gland with 9' Prewired Cable, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 626 Pressure Transmitters possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 626-17-CB-P1-E1-S1, Series 626 Industrial Pressure Transmitter, 0.25% Full Scale Accuracy, 0 to 2000 psi, Conduit Box Housing, 1/4" Male NPT, Cable Gland with 3' Prewired Cable, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 626 Pressure Transmitters possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 626-18-GH-P1-E1-S7, Series 626 Industrial Pressure Transmitter, 0.25% Full Scale, 0-3000 psig, 3' Cable, General Purpose SS - NEMA 4X IP66, 0-05-4.5 volts Ratiometric </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p><strong>The Series 626 Pressure Transmitters </strong> possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 and 628 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 and 628 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 626-25-CB-P3-E5-S1, Series 626 Industrial Pressure Transmitter, 0.25% Full Scale Accuracy, 0 to 400 psi, Conduit Box Housing, 1/4" Male BSPT, 1/2" Female NPT Conduit, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 626 Pressure Transmitters possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 626-27-CB-P1-E5-S1, Series 626 Industrial Pressure Transmitter, 0.25% Full Scale Accuracy, 0 to 25 psi, Conduit Box Housing, 1/4" Male NPT, 1/2" Female NPT Conduit, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 626 Pressure Transmitters possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 626-32-CB-P4-E9-S1, Series 626 Industrial Pressure Transmitter, 0.25% Full Scale Accuracy, 3 to 15 psi, Conduit Box Housing, 1/4" Female BSPT, M-12 4 pin Connector (not UL), 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 626 Pressure Transmitters possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 628-06-CB-P2-E5-S1, Series 628 Industrial Pressure Transmitter, 1% Full Scale Accuracy, 0 to 5 psi, Conduit Box Housing, 1/4" Female NPT, 1/2" Female NPT Conduit, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 628 Pressure Transmitters possess a highly precise 1% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 628 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 628 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 628-06-CB-P4-E5-S1, Series 628 Industrial Pressure Transmitter, 1% Full Scale Accuracy, 0 to 5 psi, Conduit Box Housing, 1/4" Female BSPT, 1/2" Female NPT Conduit, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 628 Pressure Transmitters possess a highly precise 1% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 628 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 628 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 628-15-CB-P2-E5-S1, Series 628 Industrial Pressure Transmitter, 1% Full Scale Accuracy, 0 to 1000 psi, Conduit Box Housing, 1/4" Female NPT, 1/2" Female NPT Conduit, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 628 Pressure Transmitters possess a highly precise 1% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 628 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 628 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 628-19-GH-P1-E1-S7, Series 628 Industrial Pressure Transmitter, 1.0% Full Scale, 0-5000 psig, 3' Cable, General Purpose SS - NEMA 4X IP66, 0-05-4.5 volts Ratiometric </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p><strong>The Series 626 Pressure Transmitters </strong> possess a highly precise 0.25% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 626 and 628 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 626 and 628 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 628-27-CB-P1-E3-S1, Series 628 Industrial Pressure Transmitter, 1% Full Scale Accuracy, 0 to 25 psi, Conduit Box Housing, 1/4" Male NPT, Cable Gland with 9' Prewired Cable, 4 to 20 mA </strong> </p> <p>Complete Offering of Ranges, Connections and Outputs </p> <p>The Series 628 Pressure Transmitters possess a highly precise 1% full scale accuracy piezo-resistive sensor contained in a compact, rugged, NEMA 4X stainless steel general purpose housing or cast aluminum conduit housing. </p> <p>The corrosion resistant 316L stainless steel wetted parts allow the Series 628 transmitters to measure the pressure in a multitude of processes from hydraulic oils to chemicals. The Series 628 are available in absolute and pressure ranges with a variety of optional outputs, process connections and electrical terminations to allow you to select the right transmitter for your application. </p> <p><strong>Product Applications </strong> </p> <ul><li>Compressors </li> <li>Pumping Systems </li> <li>Irrigation System Pressure </li> <li>Fire Pump Control Pressure </li> <li>Industrial Process Monitoring </li> <li>Refrigerant Line Pressures on Air Handlers when used with optional Refrigerant Valve Depressor </li> <li>Trash Compaction Equipment </li> </ul> <p><strong>Features </strong> </p> <ul><li>Metal Conduit Housing Option </li> <li>Robust 316L SS Oil Filled Sensor </li> <li>Compact Design </li> </ul> <p><strong>Approvals </strong> </p> <p>CE Approval </p>
<p><strong>Dwyer, 629C-09-CH-P3-E3-S3-AT, 629C Pressure Transmitter 0-500 psid with Aluminum Tag </strong> </p> <p>Wet/Wet Differential Pressure Transmitter (Housing - Conduit housing, NEMA 4X (IP66); Process Connection - 1/4" male BSPT; Electrical Connection - Cable gland with 9' of prewired cable; Signal Output - Field selectable: 0-5, 1-5, 0-10, 2-10 VDC) </p> <p>The <strong> Series 629C </strong> Wet/Wet Differential Pressure Transmitter monitors differential pressure of air and compatible gases and liquids with 0.5% accuracy. The design employs dual pressure sensors converting pressure changes - Field selectable: 0-5, 1-5, 0-10, 2-10 VDC. Small internal volume and minimal moving parts result in exceptional response and reliability. The terminal block, as well as a zero adjustment button, are easily accessed under the top cover. The 629C family has a robust NEMA 4X (IP66) construction. </p> <p><strong>Features </strong> </p> <ul><li>Powered by either DC or AC - take advantage of most readily available power source reducing installation costs </li> <li>Push button zero (versus trim pot) - more simple zeroing provides easy install and calibration reducing installation time and possibility of operator error </li> </ul> <p><strong>Applications </strong> </p> <ul><li>Flow elements </li> <li>Heat exchangers </li> <li>Filters </li> <li>Coils </li> <li>Chiller </li> <li>Pumps </li> </ul> <p><strong>Approvals </strong> </p> <ul><li>CE Approval </li> <li>RoHS Letter of Compliance </li> </ul>
<p><strong>Dwyer, 629C-09-CH-P3-E3-S3-NIST, 629C Pressure Transmitter 0-500 psid with NIST Traceable Certificate </strong> </p> <p>Wet/Wet Differential Pressure Transmitter (Housing - Conduit housing, NEMA 4X (IP66); Process Connection - 1/4" male BSPT; Electrical Connection - Cable gland with 9' of prewired cable; Signal Output - Field selectable: 0-5, 1-5, 0-10, 2-10 VDC) </p> <p>The <strong> Series 629C </strong> Wet/Wet Differential Pressure Transmitter monitors differential pressure of air and compatible gases and liquids with 0.5% accuracy. The design employs dual pressure sensors converting pressure changes - Field selectable: 0-5, 1-5, 0-10, 2-10 VDC. Small internal volume and minimal moving parts result in exceptional response and reliability. The terminal block, as well as a zero adjustment button, are easily accessed under the top cover. The 629C family has a robust NEMA 4X (IP66) construction. </p> <p><strong>Features </strong> </p> <ul><li>Powered by either DC or AC - take advantage of most readily available power source reducing installation costs </li> <li>Push button zero (versus trim pot) - more simple zeroing provides easy install and calibration reducing installation time and possibility of operator error </li> </ul> <p><strong>Applications </strong> </p> <ul><li>Flow elements </li> <li>Heat exchangers </li> <li>Filters </li> <li>Coils </li> <li>Chiller </li> <li>Pumps </li> </ul> <p><strong>Approvals </strong> </p> <ul><li>CE Approval </li> <li>RoHS Letter of Compliance </li> </ul>
<p><strong>Dwyer, 92S11D22D12, Series 9 Electromechanical Relay, DPDT, 12 VDC. </strong> </p> <p>30 Amp, DPDT Operation </p> <p><strong>The Series 9 Electromechanical Relay </strong> is small in size, features Class F insulation for a max coil temperature of 155°C, quick-connect terminals for simple connection, and is panel mountable. The relays are compact and impervious to shock and vibration. The EMR is perfect for motor control, power supplies, lighting, and compressor loads. </p> <p><strong>Features </strong> </p> <ul><li>Compact Size </li> <li>30 Amp Rating </li> <li>Quick-Connect Terminals </li> <li>Flange Mounting </li> </ul> <p><strong>Approvals </strong> </p> <ul><li>RoHS Certificate </li> <li>CE Approval </li> <li>UL Approval - Motor Controllers, Magnetic_US </li> </ul>
<p><strong>Dwyer, A3000-6MM-240VAC, A3000 Photohelic 240 VAC Pressure Switch/Gage, Range 0-6 mm w.c. </strong> </p> <p> <a rel="nofollow" target="_blank" href="https://www.dwyer-inst.com/PDF_files/A3000%20CE%20DECLARATION%20OF%20CONFORMITY.pdf"> <img src="//usmegastore.com/assets_images/depiction/parsed_images/CE.jpg" > </a> <img src="//usmegastore.com/assets_images/depiction/parsed_images/CSA.jpg" > <a rel="nofollow" target="_blank" href="http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=NKPZ.E38121&ccnshorttitle=Motor+Controllers,+Float-+and+Pressure-Operated&objid=1074106945&cfgid=1073741824&version=versionless&parent_id=1073990258&sequence=1"> <img src="//usmegastore.com/assets_images/depiction/parsed_images/UL_1.jpg" > </a> </p> <p>3-in-1 Indicating Gage, Lo-limit and Hi-limit Control </p> <p><strong>Photohelic® Switch/Gage </strong> function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. </p> <p><strong>Photohelic Sensing - How It Works </strong> </p> <p> In typical applications, these Dwyer switch/gages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. </p> <p><strong>Relay-Transformer Features </strong> </p> <p> A plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards. </p> <p><strong>Applications - Photohelic® Switch/Gage </strong> </p> <p> In both series of pressure switch/gages, you get the convenience of a visual indication plus high-low limit switching. For both OEM and in-plant applications, the Photohelic® switch/gage is used to control pressures in air conditioning systems, clean rooms, fluidic and pneumatic control systems, materials handling equipment, alarm or control fume exhaust systems, control pressure in air structures, and monitor respiratory and blood pressures. </p> <p><strong>Standard Model </strong> </p> <p>Two phototransistor-actuated circuits and two DPDT relays permit both high and low alarms or limit controls. Relays are de-energized when gage pointer is to the left of respective set points; relays are energized as pointer passes to the right of set points. Loss of electrical power or loss of pressure provide "fail safe" protection. </p> <p><strong>High and Low Latching Circuits </strong> </p> <p>Dwyer Photohelic® switch/gage can be wired for high-latching, low-latching, or combination high-low latching circuits. That is, the equipment will hold in these respective positions once activated and until manually reset. This can be particularly useful for alarm and signal applications where control is accomplished by another Photohelic® switch/gage or other means. Complete wiring and operational instructions are included. Where manual reset is required a dry circuit push button such as Dwyer Part A-601 should be used. </p> <p><strong>Features </strong> </p> <ul><li><strong>Bezel and front cover </strong> (with set point knobs and zero adjustment screw) removed to expose Photohelic® gage set point mechanism. Cover is clear polycarbonate plastic </li> <li><strong>Gage pointer and light shutter </strong> are mounted on helix and balancing counterweight. Shutter passes through slot in optical limit switch to expose phototransistors to integral infrared light source or mask them depending on applied pressure </li> <li><strong>Light shield </strong> effectively protects phototransistors from strong outside light sources yet allows free pointer movement. It also gives interior a clean "finished" look </li> <li><strong>Optical limit switches </strong> are used for reliability and long service life. Attached directly to set pointers, they are individually aligned to assure precise switching accuracy </li> <li><strong>Semi-Flexible drive shaft </strong> connects to set point knobs </li> <li><strong>Zero adjustment screw </strong> connects to screw in cover to adjust zero pressure reading </li> <li><strong>Plastic enclosure </strong> protects electronic components and electrical connections </li> <li><strong>Polycarbonate connection </strong> or terminal board is self-extinguishing </li> <li><strong>Glass-epoxy printed circuit boards </strong> for durability and performance </li> <li><strong>Load relays </strong> are DPDT with latching feature for maximum application versatility </li> <li><strong>Electronics </strong> are designed to operate on 50 Hz, 240 Volt current with 10% over or under voltage. </li> <li><strong>Switch set pointers </strong> show switch settings at all times </li> <li><strong>Spring loaded friction clutch </strong> prevents operator damage of set point mechanism<br> </li> </ul>
<p><strong>Dwyer, A3000-8CM-240VAC, A3000 Photohelic 240 VAC Pressure Switch/Gage, Range 0-8 cm w.c. </strong> </p> <p>3-in-1 Indicating Gage, Lo-limit and Hi-limit Control </p> <p><strong>Photohelic® Switch/Gages </strong> function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. </p> <p><strong>Photohelic Sensing - How It Works </strong> In typical applications, these Dwyer switch/gages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. </p> <p><strong>Relay-Transformer Features </strong> A plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards. </p> <p><strong>Product Applications </strong> </p> <ul><li>Air Conditioner Systems </li> <li>Clean Rooms </li> <li>Fume Exhaust Systems </li> </ul> <p><strong>Features </strong> </p> <ul><li><strong>Bezel and front cover </strong> (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism.Cover is clear polycarbonate plastic. </li> <li><strong>Gage pointer and light shutter </strong> are mounted on helix and balancing counterweight. Shutter passes through slot in optical limit switch to expose phototransistors to integral infrared light source or mask them depending on applied pressure. </li> <li><strong>Light shield </strong> effectively protects phototransistors from strong outside light sources yet allows free pointer movement. It also gives interior a clean"finished" look. </li> <li><strong>Optical limit switches </strong> are used for reliability and long service life. Attached directly to set pointers, they are individually aligned to assure precise switching accuracy. </li> <li><strong>Semi-Flexible drive shaft </strong> connects to set point knobs. </li> <li><strong>Zero adjustment screw </strong> connects to screw in cover to adjust zero pressure reading. </li> <li><strong>Plastic enclosure </strong> protects electronic components and electrical connections. </li> <li><strong>Polycarbonate connection </strong> or terminal board is self-extinguishing. </li> <li><strong>Glass epoxy printed circuit boards </strong> for durability and permanence. </li> <li><strong>Load relays </strong> are DPDT with latching feature for maximum application versatility. </li> <li><strong>Electronics </strong> are designed to operate on 50 Hz, 240 Volt current with 10% over or under voltage. </li> <li><strong>Switch set pointers </strong> show switch settings at all times. </li> <li><strong>Spring loaded friction clutch </strong> prevents operator damage of set point mechanism. </li> </ul> <p><strong>Approvals </strong> </p> <ul><li>CSA Certified - Industrial Control Equipment </li> <li>CSA Certified - Switches </li> <li>UL Approval - US </li> <li>CE </li> <li>GOST-R Certificate </li> </ul>
<p><strong>Dwyer, CDTA-5E000-LCD, Series CDTA Communicating Carbon Dioxide Detector, 5000 ppm, European Housing, LCD </strong> </p> <p>Measures CO2, Humidity, Temperature, Temperature Set Point, and Override </p> <p><strong>The Series CDTA Communicating Carbon Dioxide Detector </strong> combines the function of three room sensors into a single, compact housing. Parameters include carbon dioxide, humidity, temperature, and temperature set point with override. By having field selectable Modbus® and BACnet Communications, only four wires are needed for power and the communication signal. The communicating detectors can be daisy-chained together to further reduce installation cost. In order to reduce the set up time, the RS-485 MAC address is set up using on board dip switches. A second set of dip switches are used to select whether output is Modbus® RTU or BACnet MS/TP communication protocols and to limit access to the set up menu. </p> <p>Like our Series CDT Carbon Dioxide Transmitter, the Series CDTA uses a Single Beam Dual Wavelength Non-Dispersive Infrared (NDIR) sensor to measure the carbon dioxide level. This technology can be used in installations that will be occupied 24 hours per day. For improved accuracy, the transmitter can be field calibrated to the environmental conditions of the installation. Also, the barometric pressure can be programmed to correct for altitude. The humidity uses a capacitive polymer sensor and the temperature is measured using a 10KO thermistor sensor. The humidity sensor is field replaceable without the need for additional calibration. </p> <p><strong>Product Applications </strong> </p> <p>On Demand Ventilation </p> <p><strong>Features </strong> </p> <ul><li>Field selectable Modbus® and BACnet communications </li> <li>Single-beam dual-wavelength CO2 sensor </li> <li>Replaceable humidity/temperature sensor </li> <li>Physical hardware lockout </li> <li>Optional remote display tool </li> </ul> <p><strong>Approvals </strong> </p> <ul><li>BTL Listed </li> <li>CE Approval </li> <li>RoHS Approval </li> </ul>
<p><strong>Dwyer, CDTR-2E4F4, Series CDTR Carbon Dioxide/RH/Temperature Transmitter, European Wall Mount, 0 to 5 VDC, 0 to 10 VDC, 4 to 20 ma Carbon Dioxide Output, 20 kOhms NTC Thermistor Temperature Output, 0 to 5 VDC, 0 to 10 VDC, 4 to 20 ma RH Output </strong> </p> <p>NDIR CO2 Sensor, Universal CO2/RH Outputs </p> <p><strong>Series CDTR Carbon Dioxide, Relative Humidity and Temperature Transmitters </strong> reduce the number of sensors mounted on a wall or in a duct. By combining CO2, RH, and temperature in one device, system integrators are able to lower installation time of mounting multiple housings, while lowering material cost at the same time. Even with the three sensors combined into a single unit, replacement cost is not increased due to the pluggable nature of the humidity sensor, which allows it or the temperature to be replaced at a fraction of the cost of a new CO2 transmitter. </p> <p>Like our popular Series CDT Carbon Dioxide Transmitter, a single-beam dualwavelength non-dispersive infrared (NDIR) sensor is used to automatically correct the measurement in both occupied* and unoccupied buildings against light source aging effects. The single-beam dual-wavelength sensor technology provides a higher level of accuracy compared to Automatic Baseline Correction methods which can unintentionally shift the calibration based on CO2 levels and barometric pressure conditions. In order to achieve the best possible accuracy, the Series CDTR also includes digital barometric pressure adjustment and the ability to field-calibrate the sensor. </p> <p> When ordering a duct mount configuration or a wall mount configuration without the display, the Model A- 449 or A-449A remote LCD display can plug into the miniature connector port on the transmitter. The display can be configured to display temperature only, relative humidity only, CO2 only, CO2 and humidity, or CO2 and temperature. Push buttons are standard on all configurations of the transmitters for access to the menu structure, but wall mount configurations can be ordered without the buttons. To prevent tampering, the action of the buttons can be locked out using an internal jumper selection. Menu items that can be accessed via the push buttons include: engineering units, relay output set points, display configuration, transmitter output scaling, ambient barometric pressure, and field calibration of the transmitter. </p> <p>*For buildings occupied 24 hours per day, it is recommended that calibration be verified every 6 to 12 months depending on application. </p> <p><strong>Product Applications </strong> </p> <p>On Demand Ventilation </p> <p><strong>Approvals </strong> </p> <ul><li>CE Approval </li> <li>RoHS </li> </ul>
<p><strong>Dwyer, CDTR-2W404-LCD, Series CDTR Carbon Dioxide/RH/Temperature Transmitter, 2000 ppm, Wall Mount </strong> </p> <p>NDIR CO2 Sensor, Universal CO2/RH Outputs </p> <p><strong>Series CDTR Carbon Dioxide, Relative Humidity and Temperature Transmitters </strong> reduce the number of sensors mounted on a wall or in a duct. By combining CO2, RH, and temperature in one device, system integrators are able to lower installation time of mounting multiple housings, while lowering material cost at the same time. Even with the three sensors combined into a single unit, replacement cost is not increased due to the pluggable nature of the humidity sensor, which allows it or the temperature to be replaced at a fraction of the cost of a new CO2 transmitter. </p> <p>Like our popular Series CDT Carbon Dioxide Transmitter, a single-beam dualwavelength non-dispersive infrared (NDIR) sensor is used to automatically correct the measurement in both occupied* and unoccupied buildings against light source aging effects. The single-beam dual-wavelength sensor technology provides a higher level of accuracy compared to Automatic Baseline Correction methods which can unintentionally shift the calibration based on CO2 levels and barometric pressure conditions. </p> <p>Universal outputs for both carbon dioxide and relative humidity allow users to select the transmitter output to be 4 to 20 mA, 0 to 5 VDC, or 0 to 10 VDC to work with virtually any building management controller. Additionally, passive thermistor or RTD sensor can be ordered for a temperature output. When ordering a duct mount configuration or a wall mount configuration without the display, the Model A- 449 or A-449A remote LCD display can plug into the miniature connector port on the transmitter. The display can be configured to display temperature only, relative humidity only, CO2 only, CO2 and humidity, or CO2 and temperature. Push buttons are standard on all configurations of the transmitters for access to the menu structure, but wall mount configurations can be ordered without the buttons. To prevent tampering, the action of the buttons can be locked out using an internal jumper selection. Menu items that can be accessed via the push buttons include: engineering units, relay output set points, display configuration, transmitter output scaling, ambient barometric pressure, and field calibration of the transmitter. </p> <p>*For buildings occupied 24 hours per day, it is recommended that calibration be verified every 6 to 12 months depending on application. </p> <p><strong>Approvals </strong> </p> <ul><li>CE Approval (Duct) </li> <li>RoHS </li> <li>CE Approval CDTR-E/N </li> </ul>
<p><strong>Dwyer, CDTR-2W4A4-LCD, Series CDTR Carbon Dioxide/RH/Temp Transmitter, 2000ppm,10KOhms Type 2 </strong> </p> <p>NDIR CO2 Sensor, Universal CO2/RH Outputs </p> <p><strong>Series CDTR Carbon Dioxide, Relative Humidity and Temperature Transmitters </strong> reduce the number of sensors mounted on a wall or in a duct. By combining CO2, RH, and temperature in one device, system integrators are able to lower installation time of mounting multiple housings, while lowering material cost at the same time. Even with the three sensors combined into a single unit, replacement cost is not increased due to the pluggable nature of the humidity sensor, which allows it or the temperature to be replaced at a fraction of the cost of a new CO2 transmitter. </p> <p>Like our popular Series CDT Carbon Dioxide Transmitter, a single-beam dualwavelength non-dispersive infrared (NDIR) sensor is used to automatically correct the measurement in both occupied* and unoccupied buildings against light source aging effects. The single-beam dual-wavelength sensor technology provides a higher level of accuracy compared to Automatic Baseline Correction methods which can unintentionally shift the calibration based on CO2 levels and barometric pressure conditions. </p> <p>Universal outputs for both carbon dioxide and relative humidity allow users to select the transmitter output to be 4 to 20 mA, 0 to 5 VDC, or 0 to 10 VDC to work with virtually any building management controller. Additionally, passive thermistor or RTD sensor can be ordered for a temperature output. When ordering a duct mount configuration or a wall mount configuration without the display, the Model A- 449 or A-449A remote LCD display can plug into the miniature connector port on the transmitter. The display can be configured to display temperature only, relative humidity only, CO2 only, CO2 and humidity, or CO2 and temperature. Push buttons are standard on all configurations of the transmitters for access to the menu structure, but wall mount configurations can be ordered without the buttons. To prevent tampering, the action of the buttons can be locked out using an internal jumper selection. Menu items that can be accessed via the push buttons include: engineering units, relay output set points, display configuration, transmitter output scaling, ambient barometric pressure, and field calibration of the transmitter. </p> <p>*For buildings occupied 24 hours per day, it is recommended that calibration be verified every 6 to 12 months depending on application. </p> <p><strong>Approvals </strong> </p> <ul><li>CE Approval (Duct) </li> <li>RoHS </li> <li>CE Approval CDTR-E/N </li> </ul>
<p><strong>Dwyer, DFMT2-10A, Series DFMT2 Digital Paddlewheel Flow Transmitter, 3/8" NPT, 0.44 to 7.93 GPM </strong> </p> <p>Flow and Total Indication, Easy to Read LCD Display, Remote Indication </p> <p><strong>The Series DFMT2 Remote Digital Paddlewheel Flow Transmitter </strong> is a two piece digital flow transmitter that provides instantaneous, as well as totalizing flow monitoring. The two piece design allows the user to separate the control panel from the application, making it ideal for industrial use in reverse osmosis water purifying systems and any other applications where space is limited. The large backlit display makes navigating through the menu structure simple. The Series DFMT2 uses high accuracy, industry proven paddlewheel technology, offers a user selectable 4 to 20 mA or pulse output, and has a corrosion resistant PVDF sensor giving it a long operation life. Users can reset the totalizer at any time and set a security password protecting the system settings from unauthorized changes. </p> <p><strong>Product Applications </strong> </p> <p>Continuous Water Monitoring </p>
<p><strong>Dwyer, DSGT-116-C2S, Series DSGT Digital Indicating Transmitter, 0-5000 psig, 2 SPDT Switch Outputs </strong> </p> <p>±0.25% Full Scale Accuracy, Optional Switch Outputs </p> <p><strong>Series DSGT Digital Indicating Transmitter </strong> is a versatile multi-function process gage that features an excellent 0.25% full scale accuracy. This all-in-one digital gage package is designed to reduce installation costs, instrument cost, and save space where an application requires a gage, transmitter, and switches. The Series DSGT gage comes standards with a loop-powered 4-20 mA transmitter output and is offered with one or two optional SPDT switches. </p> <p>The Series DSGT gage is housed in a durable fiberglass reinforced thermoplastic case that is designed to meet NEMA 4 (IP65) requirements. The gage features a menu-driven display for easy customization. User selectable features include 12 engineering units of measure, password protected calibration and disable functions, as well as an adjustable bar graph and update/dampening rates. </p>