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Dwyer® Series 1230 & 1235 Flex-Tube® Well Type Manometers are designed to meet the need for a direct reading single column instrument providing highly accurate pressure readings; positive, negative or differential. Unlike other makes, Dwyer manometers have no hidden wells or packing glands. These instruments are constructed of shatter-proof clear plastic tubing permanently bonded to well assemblies with leak-proof glued joints. Well assemblies are precisely machined from solid acrylic plastic. Over-pressure safety traps assure protection against loss of fluid. Scales are adjusted with quick-acting positive mechanism. These manometers are rated to 100 psig (6.89 bar). Not recommended for vacuum service beyond 5″ Hg (68″ w.c.).
(Note: Red gage fluid included with -D style manometer.)
Retail price from $483
Available
The DPG-108 series pressure and vacuum gauges have a ±0.25% accuracy for most units. They are battery powered with selectable pressure units.
- Large-Screen LCD Display, Backlight, High Resolution, Easy to Read
- Automatically Record the Peak Pressure Value During Each On/Off Cycle
- Pressure on the Percentage of Dynamic Display, (the Progress Bar Display)
- Five Engineering Units: psi, bar, kPa, MPa, kg/cm2
Retail price from $292
Available
The DPG-101 series are AC powered with a 4 to 20 mA output and oxygen service cleaning is an option. Vacuum, gauge, and absolute pressures are available with a ±0.25% accuracy.
- 4-Digit High Resolution LED Digital Display
- All Stainless-Steel Construction
- Gage, Absolute, Compound, and Vacuum Ranges Available
- 0.25% FS Terminal Point Accuracy
Retail price from $320
Available
The Series MP Mini-Photohelic® Differential Pressure Switch/Gage combines the time proven Minihelic® II differential pressure gage with two SPDT switching set points. The Mini-Photohelic® switch/gage is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases. Gage reading is independent of switch operation. Switching status is visible by LED indicators located on the front and rear of the gage. Set points are adjusted with push buttons on the back of the unit.
Retail price from $585
Available
Dwyer® Series 420 Inclined-Vertical Manometer are extremely accurate instruments designed and made especially for precision measurement of low differential pressures in laboratory and test applications. The inclined range bore has a length of 20″ to provide ample multiplication of indicating fluid movement in this critical lower part of the range.
Retail price from $1 381
Available
The Series DPG-200 Digital Pressure Gage has a precise ±0.25% full scale accuracy. The 4 digit digital display will reduce the potential for errors in readings by eliminating parallax error commonly produced with analog gages. The DPG-200 is packaged in a durable extruded aluminum case designed to meet NEMA 4X (IP66). The unit is powered by 12-24 VDC/VAC and contains two alarm set points along with a 4-20 mA process output. A four-button keypad allows easy access to features. These features include backlight, peak and valley, auto zero and conversion of the pressure units.
Retail price from $519
Available
The DPG1000 series are available in AC/DC, loop, or battery powered units with a 4 to 20 mA output and dual alarms. They have a ±0.25% accuracy in gauge and absolute ranges.
- Burst Pressure 4x rated pressure min
- Accuracy Value ±0.25%
- Input Type -30 inHg to 100 psig
- Display Digit Height 13 mm
Retail price from $472
Available
The DPG409S sanitary series have a current or voltage output signal with a wireless option and are user-configurable. They have ±0.08% accuracy in many pressure types.
- Easy to Read 25 mm (1′) Backlit LCD Display
- High 0.08% Accuracy Typical
- Hi and Lo Alarms Standard
- MIN/MAX/AVG Reading
Retail price from $1 440
Available
Digital hand manometer for small pressures, vacuum, differential pressures and absolute pressure
- Measuring ranges from 0…1 mbar to 0…10 bar
- Potentiometer for zero point adjustment
- Optionally with analog output 0…1 VDC
Retail price from $270
Available
Using solid state technology, the Series Photohelic 3000MR/3000MRS Photohelic® Switch/Gages combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage employing the durable, time-proven Magnehelic® gage design. Switch setting is easy to adjust with large external knobs on the gage face. Gage reading is unaffected by switch operation – will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts – ideal for dry circuits. For applications requiring high cycle rates, choose 3000MRS models with SPST (N.O.) solid state relays. All models provide both low and high limit control and include 18-inch (45 cm) cable assemblies for electrical connections.
Retail price from $637
Available
Dwyer® Durablock® Series 250-AF Inclined Manometer Air Filter Gages are precision machined 1″ thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to ±.0002″ to assure life-long accuracy. A glass spirit level is built into the body and encapsulated to prevent damage or tampering. The scale is mirror polished chrome plated brass to assure parallax free reading by alignment of the meniscus with its reflection. Safety traps are incorporated in the body to prevent loss of fluid due to pressure surges. Red and green signal flags indicate clearly when a filter change is necessary. Gages are suitable for use in ambient temperatures of -20 to 150°F. Connection fittings are positively sealed but easily removed for zeroing or addition of fluid.
Retail price from $631
Available
The Series DPG Digital Pressure Gages have a high ±0.25% or ±0.5% full-scale accuracy. The 4 digit digital display will reduce the potential for errors in readings by eliminating parallax error commonly produced with analog gages. Series DPG is battery powered and has an auto-shut off to conserve battery life. Battery life, on average, will last 2000 hours. A 4 button key pad allows easy access to features without the need to work through complex menus or difficult key combinations. These features include backlight, peak and valley, tare or auto zero and conversion of the pressure units.
Retail price from $295
Available
The DPG7000 series have a durable NEMA 4X case, and min/max readings, zero function, 7 languages, and 12 selectable units. They are battery powered with up to a ±0.05% accuracy
- 0.05, 0.10 and 0.25% FS Accuracy Models
- 12 User-Selectable Units of Measure
- Large 17 mm (0.66′) Display with % of Range Bar Graph
- All Stainless Steel Wetted Parts and Case
Retail price from $1 790
Available
The DPGM409DIFF series have metric fittings and ranges, a current or voltage output signal with a wireless option and are user-configurable with a ±0.08% accuracy.
- Wet/Wet Differential Pressure Measurement
- 5-Point NIST Traceable Calibration
- Easy to Read 25 mm (1′) Backlit LCD Display
- High 0.08% Accuracy
Retail price from $1 685
Available
- Digital pressure gauge
- Accuracy ±0.125% BFSL
- 0…100 mbar to 0…600 bar
- Display rotatable
- Battery operated (2 x ½-AA)
Retail price from $368
Available
The Series A3000 Photohelic® Switch/Gages 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. 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. Choose from full scale pressure ranges from a low 0-.25 in (0-6 mm) w.c. up to 30 psi (21 bar).
Retail price from $669
Available
Series Mark II 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. The Model 25 is excellent for general purpose work. The Model 40 inclined gage provides linear calibration and excellent resolution throughout its range. The Model 40 is ideally suited for air velocity and air filter gage applications. Both gage types are capable of pressure measurements above and below atmospheric as well as differential pressure measurements. Included with each Mark II manometer are two tubing connectors for 1/8″ pipe or sheet metal ducts, two mounting screws, 1 ounce bottle of indicating fluid, red and green pointer flags and complete instructions.
Retail price from $58
Available
The Series DPGA is the only economic digital pressure gage with selectable engineering units on the market. With its 1% accuracy and digital push-button zero, the DPGA is the perfect choice for digitally monitoring the pressures of air and compatible gases.
Retail price from $161
Available
The DPG8001 series have a durable NEMA 4X case and protective boot, and min/max readings, zero function, and selectable units with ±0.25% accuracy for general purpose uses.
- 0.25% Full Scale Terminal Point Accuracy
- 5 Digit LCD Display with Large 12.2 mm (0.48′) Digits
- 20 Segment Bar Graph Display
- User-Selectable Engineering Units
Retail price from $637
Available
The PGC series are 2″ and 2.5″ dial gauges with durable construction and a ±3-2-3% accuracy in gauge, vacuum, and compound gauge ranges.
- Economically Priced
- Long Lasting Movement
- Durable Construction
- Stocked Ranges for Fast Delivery
Retail price from $47
Available
- Precision digital pressure gauge
- Accuracy ±0.1% FS or ±0.2% FS
- 0…100 mbar to 0…3,000 bar
- Measurement and indication of the medium temperature
- -10…+70°C ±1°C
- USB interface
- Chargeable Li-Ion battery
Retail price from $790
Available
Our Series LPG4 2.5″ Low Pressure Gage offers top of the line performance and accuracy for pressure and vacuum applications up to and including 160 in w.c. The LPG4 is constructed from a single beryllium-copper diaphragm affixed to a precision-machined brass plate. This innovative design, together with a high-precision, milled-teeth brass movement and nickel-silver pinion and bearing surface, provide the user with a top of the line low pressure instrument.
Retail price from $72
Available
The Series DPGWB/DPGAB Pressure Gages offer 0.5% full scale accuracy in a rugged, easy-to-use unit at prices comparable to mechanical gages. The DPGWB stainless steel wetted material makes it suitable for a wide variety of liquids or gases. The gages feature user-selectable units of measure allowing one gage to be used for a variety of pressure scales. The DPGWB/DPGAB come with a protective rubber boot to protect against short drops and rough handling.
Retail price from $222
Available
The DPG1001 series are AC/DC, loop, or battery powered units with optional 4 to 20 mA output and dual alarms and NIST certification with a ±0.10% accuracy.
- NIST Certification Included
- High Accuracy +/- 0.10% Test Gauge
- 316 Stainless Steel Wetted Parts
- Easy-to-Read 3 1/2 Digit LCD Display
Retail price from $734
Available