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Dwyer Instruments Pressure Products

 Gages, Transmitters, Switches, Data Loggers, Controllers, and Monitors for Pressure.
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Dwyer Single Pressure Transmitters
Dwyer Differential Pressure Transmitters
Dwyer Digital Manometers
Dwyer Inclined Manometers
Dwyer Laboratory Manometers
Dwyer U-tube Manometers
Dwyer Differential Pressure Switches
Dwyer Single Pressure Gages (Spirahelic)
Dwyer Differential Pressure Gages (Magnehelic, Capsulhelic and Minihelic models)
Dwyer Switch/Gages (Photohelic Gages / Transmitters)
Accessories
 
Single Pressure Transmitters
Digital Pressure Transmitter with Switches - Dwyer Series DPT
Two Solid State Switches, LED Display
High Accuracy Pressure Transmitter - Dwyer Series HATX
±0.05% FS Accuracy, 0.01% Repeatability FS, NIST Certificate Included
Industrial Weatherproof Pressure Transmitter - Dwyer Series IWP
Exceptional Reliability for Harsh Environments
Explosion-proof Pressure Transmitter - Mercoid Series 3200G
HART® Communication, Push Button Configuration, Rangeability (100:1)
Industrial Pressure Transmitter - Dwyer Series 626 & 628
Ranges from 15 to 1000 psi, ±0.25% Accuracy, Gas/Liquid/Air
Pressure Transmitter - Dwyer Series 634ES
4-20 mA signal. Two wire operation. Ranges to 6000 psi.
Fixed Range Pressure Transmitter - Dwyer Series 636
Stainless Steel, Explosion-proof, Accuracy ±0.30%, 4-20 mA or 1-5 VDC Signal.
Industrial Pressure Transmitter - Dwyer Series 644
±0.05% FS, <±0.25% FS Total Error Band
Pressure Transmitter - Dwyer Series 672
Single Pressure Connection, Ranges Down to 10" w.c.
Pressure Transmitter - Dwyer Series 673
±0.25% Full Span Accuracy, 4-20 mA Signal, Ranges to 1000 psi
Weatherproof Pressure Transmitter - Dwyer Series 679
±0.25% FS Accuracy, Compatible with Corrosive Materials, 4-20 mA Output
Sanitary Pressure Transmitter - Dwyer Series 681
Ranges from 1 to 300 psi (68 mbar to 20 bar), ±0.2% Accuracy, Gas/Liquid, 316L SS
Weatherproof Pressure Transmitter - Dwyer Series 682
Ranges from 25 to 10,000 psi (1.5 to 689 bar), ±0.13% Accuracy, Gas/Liquid, 17-4 PH SS, NEMA 4 (IP65)
Industrial Pressure Transducer - Dwyer Series 683
Ranges from 15 to 1000 psi, ±0.25% Accuracy, 17-4 pH Stainless Steel
 
Differential Pressure Transmitter
Differential Pressure Transmitter - Dwyer Series WWDP
Selectable Ranges of Uni-Directional or Bi-Directional, Selectable Outputs
Differential Pressure Transmitter - Mercoid Series 3100
Explosion-proof Differential Pressure Transmitter
HART® Communication, Push Button Configuration, Rangeability (100:1)
Differential Pressure Transmitter - Dwyer Series DM-2000
Same Size as Standard Magnehelic® Differential Pressure Gage
Intrinsically Safe Differential Pressure Transmitter - Dwyer Series ISDP
For Hazardous Zone Pressure and Flow Applications
Magnesense™ Differential Pressure Transmitter - Dwyer Series MS
Selectable Ranges, ±1.0% Accuracy, Air/Gas
Capsuhelic Wet/Wet Differential Pressure Transmitter - Dwyer Capsuhelic Series 631B
Ranges from 0.5" w.c. to 25" w.c., ±2% Accuracy, Gas/Liquid, NEMA 4X (IP66)
Differential Pressure Transmitters - Dwyer Series 603A
4-20 mA signal. Two-three or four wire operation. Ranges from 0.1" water column. Accurate within ±2% span.
Magnehelic® Differential Pressure Indicating Transmitter - Dwyer Series 605
Dial Gage Indication, Two-Wire 4-20 mA Output.
Magnehelic® Differential Pressure Indicating Transmitter - Dwyer Series AT2605
Series 605 in Flame-Proof ATEX Enclosure
ATEX Approved Magnesense® Differential Pressure Transmitter - Series AT2MS
Series MS in Flame-Proof ATEX Enclosure
Magnehelic® Gage Panel Mounting Flange - Model A-286
Flange for Panel Mounting 4-1/2" Diameter Gages
Differential Pressure Transmitter - Dwyer Series 607
Ranges from 0-0.1% w.c. Accuracy ±0.5% F.S. ±0.25% Accuracy, Ranges from 0.10' w.c.
Intrinsically Safe Differential Pressure Transmitter - Dwyer Series 608
Ranges Down to 0.1" w.c., FM Approved, NEMA 4X
Precision Low Differential Pressure Transmitter - Dwyer Series 610
Ideal for Clean Rooms, Easy to Field Calibrate with Security Key
Differential Pressure Transmitter - Dwyer Series 616
Ranges from 0-1 in. w.c. to 0-100 psid. Accuracy ±0.5% Full Span Output.
Differential Pressure Transmitter - Dwyer Series 616D
Ranges from 3" w.c. to 100 psid, ±0.25% Accuracy, Air/Gas, DIN Rail Mount
Differential Pressure Transmitter - Dwyer Series 616W
NEMA 4X Enclosure, 0.5% ES. Accuracy, Ranges from 0-2" w.c. to 0-20 psid.
Differential Pressure Transmitter - Dwyer Series 616WL
Low Ranges Down to 0.25" w.c. (60 Pa), NEMA 4X Housing
Differential Pressure Transmitter - Dwyer Series 629
Wet/Wet Differential Pressure Transmitter
Capsuhelic® Wet/Wet Differential Pressure Transmitter -Dwyer Series 631B
Ranges Down to 0.5" w.c. with 500 psi Static Pressure Rating
Pressure Transmitter - Dwyer Series 634ES
4-20 mA signal. Two wire operation. Ranges to 6000 psi.
Fixed Range Differential Pressure Transmitter - Dwyer Series 636D
Explosion-proof, 0.5% Accuracy
Differential Pressure Transducer - Dwyer Series 646B
Ranges Down to 0.5 in w.c., Ratiometric Signal Output
Wet/Wet Differential Pressure Transmitter - Dweyr Series 645
±0.25% Accuracy, Quick Response, 2-Wire Design
Wet/Wet Differential Pressure Transmitter - Dwyer Series 647
Ranges from 1" w.c. to 30 psid, ±1% Accuracy, Gas/Liquid, NEMA 4 (IP56)
Wet/Wet Differential Pressure Transmitter - Dwyer Series 655A
Ranges Down to 3" w.c., 6-point NIST Certificate Included
Differential Pressure Transmitter - Dwyer Series 668
Ranges from 0-0.25"w.c., Overpressure Protection to 10 psig, ± 1% Accuracy
Differential Pressure Transmitter - Series 677B
Ranges from 0.1 to 100" w.c., ±0.4% Accuracy, Air/Gas, Brass
 
Digital Manometers
Mark III Handheld Digital Manometer - Series 475-FM
Ranges from 4 in. w.c. to 150 psid, ±0.5% Accuracy Intrinsically Safe for Hazardous Locations, Class 1, Div. 1, Group A, B, C, D, T4
Handheld Digital Manometer - Model 476A
Single & Dual Pressure Measurement, Electronic Zeroing, ±1.5% Accuracy
Handheld Digital Manometer - Series 477-FM
Selectable Pressure Units, ±0.5% Accuracy
Handheld Digital Manometer - Series 477A
Ranges from 20" w.c. to 100 psi (5 kPa to 700 kPa), ±0.10% Accuracy
Handheld Digital Manometer - Model 478-0
Ranges from -60 to 60" w.c., ±1.5% Accuracy, Differential Pressure
Wet/Wet Handheld Digital Manometer - Series 490
Liquid & Gas Pressure Measurement, ± 0.5%F.S. Accuracy.
Inclined Manometer Air Filter Gage - Model 250/Model 451
Ranges from 0.1 to 4" w.c., ±1% Accuracy
Handheld Digital Manometer - Series HM28
Ranges from 10" w.c. to 1000 psi (2.5 kPa to 7000 kPa), ±0.05 to 0.2% Accuracy, Absolute Pressure, Microprocessor Based
Precision Digital Pressure Manometer - Series HM35
Up to 0.05% Accuracy, Graphical Display, Data Logging Capability
 
Inclined Manometers
Durablock Inclined-Vertical Manometers - Series 424/420
Series 424 - Accuracy to ±1/4 of 1%. Series 420 - Inclined Vertical Manometers Accurate to ±1%
Durablock Solid Plastic Portable Gages - Series 100
Ranges and Dimensions - Suitable for total pressures up to 100 psig, temperatures up to 150°F. Accuracy ±2% of full scale (1% on model 115 only)
Durablock® Solid Plastic Stationary Gages - Series 200/300
Ranges and Dimensions - Suitable for total pressures up to 100 psig, temperatures up to 150°F. Accuracy ±2% of full scale (1% on models 215, 244, 246 only)
 
Laboratory Manometers
Microtector® Portable Electronic Point Gage - Model 1430
Accurate to ±.00025" w.c., Battery Operated, Self-Contained
 
U-tube Manometers
Gas Pressure Manometer - Series 1213
The "Tube in a Tube" Direct Reading Manometer
 
Single Pressure Switches
Double Bellows Differential Pressure Switches - Series DP
Visible setpoints, adjustable or fixed deadband ... high pressure ranges.
Bourdon Tube Pressure Switches - Series DA/DS
Visible setpoint, adjustable deadband, pressure ranges to 5000 PSI
Diaphragm Seal for DA Series Pressure Switch - Series XTBX
PVC and Teflon® Construction for Corrosive Applications
Bourdon Tube Pressure Switches - Series DS-7300
Hermetically Sealed Snap Action Switch, Visible Setpoint, Fixed Deadband
Compact Pressure Switch - Series A1N
Vacuum and Compound Ranges Available, Adjustable Set Point
Economical Pressure Switch - Series A1PS/A1VS
Vacuum and Compound Ranges Available, Adjustable Set Point
Electronic Pressure Switch - Series ES
Adjustable Set Point, Status Light, NEMA-4 Enclosure
Adjustable Switch - Series APS/AVS
Vacuum and Pressure Ranges, 5A Relay, Compact Size
Diaphragm Operated Pressure Switches - Series SA1100
Visible setpoint, adjustable deadband, weather-proof, explosion-proof. Option hermetically sealed snap switch.
Low Cost OEM Pressure Switch - Series A1
316 SS Diaphragm. Optional Weatherproof Enclosure. Ranges from 2-20 to 50-500 psig.
Compressor Pressure Switch - Series CX
Ranges from 25 to 175 psig (1.7 to 12.1 bar), Adjustable Deadband
Water Pump Pressure Switch - Series CXA
Ranges from 15 to 150 psi, Adjustable Deadband, Adjustable Set Point
Ultra Sensitive Pressure Switches - Series PQ
Large diaphragm, magnetic mercury switch.
Diaphragm Operated Pressure Switches - Series 1000
Visible setpoint, fixed deadband, pressure ranges to 1400 PSI.
Explosion-Proof Diaphragm Operated Pressure Switches - Series 1000E
Visible setpoint, fixed deadband, pressure ranges to 1400 PSI.
Dual-Action Explosion-Proof Pressure Switches - Series H2
Explosion-proof and weatherproof housing.
Diaphragm Operated Pressure Switches - Series AP
Visible setpoint adjustment compact, low cost.
Miniature Vacuum Switch - Series MVS
SPDT N/O or N/C Switch, Adjustable Set Point, Ideal for OEM’s
Mercoid Diaphragm Seal for DA Series Pressure Switch - Series XTBX
PVC and Teflon® Construction for Corrosive Applications
Low Cost Diaphragm Operated Pressure Switches - Series CS
Visible setpoints, fixed deadband.
 
Differential Pressure Switches
Bourdon Tube Differential Pressure Switches - Series BB
Stainless steel bourdon tubes, adjustable deadband, high pressure
Compact Low Differential Pressure Switches - Series 1900
Our smallest, lowest cost precision switches. Six standard ranges – Set points from 0.07" to 20" W.C. Repetitive accuracy within 3%.
Differential Pressure Switches - Series PG
External adjustment, visible dial, hermetically sealed snap or mercury switch.
Explosion Proof Differential Pressure Switches - Model 1950
Compact, Low-Cost, Explosion-proof and Weatherproof.
Double Bellows Differential Pressure Switches - Series DP
Visible setpoints, adjustable or fixed deadband... high pressure ranges.
Explosion-Proof Differential Pressure Switch - Model 1950G
Explosion-Proof, Weatherproof, Compatible with Natural Gases
Explosion-Proof Differential Pressure Switch - Series H3
Ranges from 10" w.c. to 200 psid, Explosion-proof and Weatherproof Standard
Gas Differential Pressure Switch - Series A4
Ranges from 7 psi to 250 psi, Air and compatible gases
 
Single Pressure Gages
Liquid-Filled Gage - Series 760
Ranges from 30" Hg Vacuum to 160 psi, ASME Grade 2A Accuracy, 4-1/2" Gage
Process Pressure Gage - Series 761
Ranges from 30" Hg Vac to 160 psi, ±1% Full Scale Accuracy, 4-1/2" Gage
Process Pressure Gage - Series 762
Ranges from 30" Hg Vac to 160 psi, ±0.5% Full Scale Accuracy, 4-1/2" Gage, Liquid-Fillable
Digital Pressure Gage - Series DPG-100
±0.25% Full Scale Accuracy, NEMA 4X Housing
Digital Pressure Gage - Series DPG-000
Ranges from 15 to 5000 psi (1.03 to 344.5 bar), ±0.5% Accuracy, 3" Gage with 4-Digit Display, NEMA 4X
Digital Vacuum Gage - Series VG
7 Different Engineering Units, ±10% Accuracy, Alpha Numeric Display
Differential Pressure Transmitter - Series 7314D
Large Easy-to-Read 8 1/2", Analog Dial LCS, 1/4% F.S. Accuracy
Spirahelic® Pressure Gages - Series 6000
Reliability and accuracy in a 2 1/2" solid-front gage.
Pressure Gages - Series 61000/62000
Exceptional Value in a 2 1/2" Gage.
Liquid-Filled Gages - Series 63000
2 1/2" Dual Scale Dial, ASME Grade B
Digital Pressure Gages - Series 67000
Low Cost, ±2% Accuracy
Digital Pressure Gage - Series DPG-100
Ranges from 15 to 5000 psi (1.03 to 344.5 bar), ±0.25% Accuracy, 3" Gage with 4-Digit Display, NEMA 4X
Spirahelic® Pressure Gages - Series 7000
Reliability and Accuracy in a 4 1/2" or 6" solid-front gage. Triple helix Bourdon tube, Low friction direct drive. ASME Grades A, 2A or 3A, Optional 4-20 mA output for 7100 Models.
Spirahelic® Direct Drive - Series 7000B
Series 7000B Spirahelic® Direct Drive Pressure Gages with turret mount housings feature a triple coil spiral/helical wound Bourdon tube to provide dependable service.
Spirahelic® Pressure Gage - Series 7214D
1/4% Accuracy, Combines Analog and Digital Displays
 
Differential Pressure Gages
Differential Pressure Piston-Type Gage - Series PTGA & PTGC
Over Pressure Rating to 5000 psig
DigiMag® Digital Differential Pressure Gage - Series DM-1100
24 Volt or Battery Powered. Fits in Magnehelic® Gage Cut-Out
Magnehelic® Differential Pressure Gages - Series 2000
Indicate low air or gas pressure - positive, negative or differential. Accurate within 2%. 81 Ranges.
Capsuhelic® Differential Pressure Gages - Series 4000
For air of compatible gases or liquids. Measures pressure, vacuum or differential. Accuracy 3% of full scale. Suitable for internal pressures to 500 psig.
Minihelic II® Differential Pressure Gages - Series 2-5000
Combining high accuracy, readability, compactness, dependability, and low cost.
 
Switch/Gages
Digihelic® Controller in Photohelic® Gage, Square Root Output for Flow
Digihelic® II Differential Pressure Controller - Series DHII
Ranges 5" w.c. to 100" w.c. (1.3 to 24.9 kPa), ±0.5% Accuracy, NEMA 4 (IP66) Housing, Switch and Transmitter
Digihelic® Differential Pressure Controller - Series DH
Ranges 5" w.c. to 100" w.c. (1.3 to 24.9 kPa), ±0.5% Accuracy, 3 in 1 Instrument: Gage, Switch and Transmitter
Mini-Photohelic Differential Pressure Switch/Gage - Series MP
Compact, Low Cost Switch Gage.
Photohelic® and Capsu-Photohelic Pressure Switch Gages - Series A3000/3000
Ranges 0.25" w.c. to 6000 psi (60 Pa to 41,000 kPa), ±2% Accuracy, 3-in-1 Indicating Gage, Hi/Lo Limit Control.
Capsu-Photohelic® Pressure Switch Gage - Series 43000
Ranges 0.5" w.c. to 300 psi (120 Pa to 2,060 kPa), ±3% Accuracy, 3-in-1 Indicating Gage, Hi/Lo Limit Control
Photohelic® Switch/Gages - Series 3000MR/3000MRS
Combines differential pressure gage with low/high set-points. Compact and lightweight. Versatile SPDT electro-mechanical relays, 3000MR Reliable solid state switching, 3000MRS.
Photohelic® Pressure Switch/Gage with Integral Transmitter - Series 3000SGT
They're 4-in-One: 1. Indicating gage. 2. Lo-Limit control 3. High Limit control. 4. 4-20 mA transmitter. Indication accuracy 2%, switch repeatability 1%.
 
Accessories
Current to Pressure Transducer - Series 2200
Control Transformer - Model A-699
Power Supply - Model A-700
Digital Panel Meter/Power Supply with Alarm - Model A-702
Digital Voltmeter - Model A-703-2
Process Indicator and Alarm - Series 1000
Indicating Annunciator - Series AN14