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An affordable panel mounted pressure gauge with high-end features, the new Ralston Instruments Field Gauge LC30 line of digital pressure gauges was designed with the user in mind. They are compact, tough, and reliable with customization options to help you simplify your work and get the job done quickly and accurately. Accuracy: ±0.1% full scale accuracy
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With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the Additel ADT 681 Digital Pressure Gauges provide an accurate, reliable, and economic solution for a wide range of pressure applications. They are loaded with functionality and remarkably easy to use. To reach the best performance, every silicon pressure sensor in our gauges is specially aged, tested and screened before assembly. At Additel, fully temperature compensated accuracy means every sensor is pressure tested at several environmental temperatures from -10°C to 50°C. With this test data individual coefficients are generated and stored in the gauge characterizing its performance over the full temperature compensated range. And now the ADT681IS comes with an IP67 rating meaning it is dust resistant and water proof, submerible in 1 meter of water. Designed to fit your need The Additel ADT 681 Digital Pressure Gauges pressure gauges give you the widest variety of sensor choices on the market. Whether you require low inches of water measurement or very high pressure measurement, we have a gauge that will meet your need. We offer sensors which are ±1 inH2O (±2.5 mbar) to 60K psi (4,200 bar) and everything in between. Do your applications require you to measure both positive and vacuum pressure? Our compound gauges do not compromise accuracy and provide you with the same high accuracy specification on both positive and vacuum pressures. We offer a wide variety up to 300 psi (20 bar). If you need a higher range, just contact us and we can likely customize one to meet your need. We also offer absolute pressure sensors to 5K psi (350 bar) and a full range of differential pressure sensors from ±1 inH2O (±2.5 mbar) to ±300 inH2O (±700 mbar). Are you looking for a pressure gauge to use in hazardous areas? Our certified (ATEX, CSA US & IECEx) intrinsically safe models (681IS) are designed for pressure measurement in hazardous areas. If you need to panel mount our sensors, we offer the option (see ordering information) for a back-mounted pressure port and gauge housing designed to fit in a panel. And most recently, we've added the option to do stand-alone data logging with the 681. Now you can record more than 21,000 records internal to the 681 series. Each record includes date, time, pressure and temperature readings. Download the logged data with our free Additel/Land software or you can purchase our Additel/Log II for real-time logging and data analysis. The 681 series digital pressure gauges are unmatched in performance and reliability. Best of all, they are very affordable. **PRICING BASED ON CONFIGURATION - REQUESTE QUOTE FOR ACTUAL COST **
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Microbore hoses that provide a very quick, low volume, high pressure way of connecting to any pressure instrumentation, hand pump, calibration source or device under test
- Low volume reduces the pumping effort or compressed gas usage in pressure calibration
- No thread sealant required – connect to adapters without wrenches, thread sealant or thread tape
- Bubble tight connections to 6900 psi (475 bar) with no moving parts reduces maintenance to almost zero
- Hose is hard to break and very flexible
- Adapt from hose to virtually any device under test with only one connection
- Silver color dramatically reduces the effect that changing temperature has on pressure stability
- A corrosion resistant strain-relief on each hose end reduces wear and dramatically increases hose life
- Hose is excellent for inert gas applications (except Helium and Argon)
- Hose is pin-pricked for use in Natural Gas applications
- Made in U.S.A.
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The Additel 680 Series Digital Pressure Gauges is an accurate, reliable, and economic solution for a wide range of pressure applications. It is loaded with functionality yet remarkably easy to use. **COST WILL VARY BASED ON CONFIGURATION - PLEASE REQUEST A QUOTE FOR ACTUAL COST**
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DPPV (+125 psi to -23" Hg) pump, no gauge adapter, with 3ft hose, 1/4" MNPT process connection Generate either a vacuum or a pressure for calibrating low pressure or vacuum instrumentation using an external pressure calibrator. Features
- Generate either 125 psi (8.6 bar) pressure or 23 InHg (584 mm Hg) vacuum with the same pump
- Unique design allows the user to convert from pressure to vacuum by simply twisting a knob, even with gloves on
- Two outlet ports allow connection to reference pressure gauge or pressure calibrator as well as device under test, thus eliminating a tee
- Large volume fine adjustment piston provides precise control, even at very low pressures
- Precisely vent pressure with soft seated bleed valve
- Made in U.S.A.
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The most economical way of performing static pressure calibrations in the field using nitrogen or other compressed gas. Fine adjustment piston provides precise pressure control instead of trying to make adjustments with a pressure regulator and a needle valve Soft-seated valves make filling and venting the system very precise Compact design allows the manifold, gauge adapter and hoses to fit in the included nylon bag Because pressure is controlled at the device under test, the nitrogen cylinder can be mounted on a truck Low volume Quick-test hose, gauge adapter and process connection reduce gas usage and make nitrogen cylinders last longer Made in U.S.A.
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DV0V (23 inHg / 650 mm Hg Vac) pump, no gauge adapter, with 3ft hose, 1/4" MNPT process conn. Generate vacuum to calibrate vacuum devices in the field Light weight, compact pump generates 23 inHg (584mm Hg)vacuum with ease Large volume fine adjustment piston provides precise control, even at very low vacuums Modular design makes field maintenance quick and easy Precisely vent pressure with soft seated bleed valve Two outlet ports provide connections for both pressure reference and for device under test thus eliminating a tee Low volume Quick-test hose, gauge adapter and process connection can be attached to pump without thread sealant or a wrench Rugged, all metal construction reduces pressure changes due to temperature fluctuations Made in U.S.A. Item Includes Hand Pump - DV0V Assembly (DV0V) Hose - Quick-test 6900 psi hose, brass hose ends, 3 ft (92 cm) long (QTQT-HOS-3ft) Hose Adapter - 1/4" male NPT x male Quick-test, no check-valve, brass (QTHA-2MB0)
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DP0V (125 psi / 8.6 bar) pump, no gauge adapter, 3ft hose, 1/4" MNPT process connection
The ideal solution for very precise low pressure calibration or differential pressure testing using an external pressure calibrator as the reference.
- Light weight, compact pump generates up to 125 psi (8.6 bar) with ease
- Large volume fine adjustment piston provides precise control, even at very low pressures
- Modular design makes field maintenance quick and easy
- Precisely vent pressure with soft seated bleed valve
- Two outlet ports provide connections for both pressure reference and for device under test thus eliminating a tee
- Low volume Quick-test hose, gauge adapter and process connection can be attached to pump without thread sealant or a wrench
- Rugged, all metal construction reduces pressure changes due to temperature fluctuations
- Made in U.S.A.
Item Includes
- Hand Pump - DP0V Assembly (DP0V)
- Hose - Quick-test 6900 psi hose, brass hose ends, 3 ft (92 cm) long (QTQT-HOS-3ft)
- Hose Adapter - 1/4" male NPT x male Quick-test, no check-valve, brass (QTHA-2MB0)
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Keep a calibration system pressurized with a fluid or gas while venting the pressure from the device being calibrated
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Connect one end to a Quick-test hose and the other to the process connection then turn the knob to control the pressure Easily control pressure of a closed system Fine tune pressure to a precise number Easily attach and remove from a system
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Connect Quick-test XT hoses to a male NPT pressure gauge. It allows one to connect a hose to a pressure gauge, calibrate it and remove it without a wrench or thread sealant.
- A unique design allows connection to any male NPT pressure gauge connection using a pressure-assisted o-ring seal
- Pressure helps to seal the fitting better
- Stainless steel construction
- Made in USA
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Install between a pressure gauge and the process and isolate the process from the gauge to perform a calibration of the gauge. After completing the calibration open the valve and place the gauge on-line, all without blowing down the system. * Use whenever there is a gauge that needs frequent calibration or verification
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Connect a male 37° flare AN/JIC fitting to a Quick-test hose without a wrench
- A unique design allows connection to standard male 37° flare fitting using a pressure-assisted o-ring seal
- Pressure helps to seal the fitting better
- Stainless steel construction
- Made in USA
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Use to slowly or quickly bleed pressure from a line after a calibration is complete Easily connect between the end of a Quick-test hose and the process connection Keep fluid or contaminates out of the hand pump, calibrator or nitrogen control device
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Install in a test bench or control panel for easy access and control Non-rising stem vernier controls smoothly Floating piston head makes o-ring wear very low
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Connect to any CGA 580 cylinder valve without a wrench or thread sealant Use in the field when connecting a pressure regulator to a nitrogen cylinder Use when filling multiple gas bottles Made in USA
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Connect three hoses or a combination of 3 hoses, adapters and hand pumps or manifolds Durable forged construction Tee has full flow through each of the ports Made in USA
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Connect a male 37° flare AN/JIC fitting to a Quick-test hose without a wrench
- A unique design allows connection to standard male 37° flare fitting using a pressure-assisted o-ring seal
- Pressure helps to seal the fitting better
- Stainless steel construction
- Made in USA
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Make a bubble-tight connection to any Swagelok, Parker, Hoke, SSP, Tylok or equivalent tube fitting without a wrench to 15,000 psi
- An excellent solution for connecting to tube fittings for pressure calibration, gas sampling, pressure reading and testing
- A unique design that seals on an o-ring to prevent damage to a tube fitting
- Make and remake hundreds of times without over-tightening a tube fitting
- Made in USA
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Connect to any male 37 degree flare adapter or tube
- Connect to male AN flare connections without a wrench
- Excellent for use in Aerospace and marine use
- Cap adapters off when not in use
- Made in USA
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Connect 3 Quick-test XT 10,000 psi hoses together without a wrench or thread sealant Durable forged construction Full flow through all ports Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses Made in USA
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Connect a pressure gauge with Metric male parallel thread to a Quick-test hose A unique design allows connection to any male metric connections using a pressure-assisted o-ring seal Pressure helps to seal the fitting better Stainless steel construction Made in USA
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Make calibrating pressure transmitters a snap by eliminating the need for thread sealant or wrenches when connecting to any female NPT connection
- A unique design allows connection to standard female NPT ports using a pressure-assisted o-ring seal
- Pressure helps to seal the fitting better
- A Cap and chain makes calibration easy and quick by connecting and disconnecting a hose without a wrench or thread sealant
- Stainless steel construction
- Made in USA
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Excellent for safely connecting two Quick-test XT 10,000 psi hoses through an enclosure, truck, or panel wall Bulkhead seals so no liquid or moisture can get into a control panel or enclosure Use to connect a Quick-test XT hose on the inside of an enclosure to a Quick-test XT hose on the outside of the enclosure Will connect through a wall that is up to 0.5 in (1.3 cm) Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses Made in USA
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Connect Quick-test hoses to a male NPT pressure gauge. It allows one to connect a hose to a pressure gauge, calibrate it and remove it without a wrench or thread sealant.
- A unique design allows connection to any male NPT pressure gauge connection using a pressure-assisted o-ring seal
- Pressure helps to seal the fitting better
- Stainless steel construction
- Made in USA
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Connect a Quick-test hose directly to a DP transmitter using the bleeder port when the transmitter is not mounted on a 3 or 5 valve manifold or when the manifold is not easily accessible. This unique fitting makes a metal to metal seat on the transmitter and a Quick-test XT hose can be attached on the other side Connects through the bleeder screw port on a DP transmitter Pressurize to 10,000 psi (700 bar) Made in USA
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Make a bubble-tight seal on any Female NPT pressure device without using thread sealant or a wrench.
- A unique design allows connection to standard female NPT ports using a pressure-assisted o-ring seal
- Pressure helps to seal the fitting better
- Stainless steel construction
- Made in USA
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Connect to any Size Petes Plug for testing, sampling or reading a pressure. Connect from any Pete's Plug directly to a Ralston Quick-test hose, gauge or FieldLab for quick pressure testing "Pete's Plug" is a registered Trademark of Peterson Industries Made in USA
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Connect a Quick-test hose on one side of a panel, wall or enclosure and a tube fitting on the other
- Bulkhead seals so no liquid or moisture can get into a control panel or enclosure
- Use to connect tube fittings on the inside of an enclosure to a Quick-test hose on the outside of the enclosure
- Will connect through a wall that is up to 0.5 in (1.3 cm) thick
- Made in USA
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Make a bubble-tight connection to any Swagelok, Parker, Hoke, SSP, Tylok or equivalent tube fitting without a wrench
- An excellent solution for connecting to tube fittings for pressure calibration, gas sampling, pressure reading and testing
- A unique design that seals on an o-ring to prevent damage to a tube fitting
- Make and remake hundreds of times without over-tightening a tube fitting
- Made in USA
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Connects Female NPT to Quick-test XT 10,000 psi hoses for permanent installation
- Connect to pressure transmitters, EFMs, Flow Computers and other NPT devices under test using thread sealant for a permanent connection
- Cap and chains make calibration easy and quick by connecting and disconnecting without a wrench or thread sealant
- Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses
- Made in USA
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Connect a hose to an adapter that is in a hard to reach place Ideal for accessing pressure transmitter ports and other equipment that is hard to reach Position pressure gauges for easy reading Durable forged construction Made in USA
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A removable cap provides easy access to connect a Quick-test hose to the process for calibration purposes and is easily sealed bubble-tight again when calibration is complete
- Connect to pressure transmitters, EFMs, Flow Computers and other NPT devices under test using thread sealant for a permanent connection
- A Cap and chain makes calibration easy and quick by connecting and disconnecting a hose without a wrench or thread sealant
- Made in USA
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Connect a Female High Pressure 60 degree coned and threaded pressure fitting to a Quick-test hose Excellent for connecting to Autoclave Engineers, Butech, HIP (High Pressure Equipment), Parker or equivalent High Pressure coned and threaded connections, valves, tees and unions Metal to metal seal provides leak-free service Made in USA
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Connect a hose on one side of a panel, wall or enclosure with female NPT on the other side
- Bulkhead seals so no liquid or moisture can get into a control panel or enclosure
- Use to connect fittings on the inside of an enclosure to a Quick-test hose on the outside of the enclosure
- Will connect through a wall that is up to 0.5 in (1.3 cm) thick
- Made in USA
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Connect to any medium pressure connection Ideal for connecting to Autoclave Engineers, Butech, HIP or Parker Medium Pressure connections Connect to Crystal Engineering pressure gauges or pressure calibrators with Female CPF pressure connections Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses Made in USA
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Connect a Female 60 degree coned and threaded pressure fitting to a Quick-test XT 10,000 psi hose Excellent for connecting to Autoclave Engineers, Butech, HIP (High Pressure Equipment), Parker or equivalent High Pressure coned and threaded connections, valves, tees and unions Metal to metal seal for 10,000 psi service Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses Made in USA
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Connect a Quick-test hose to a pressure gauge or any device with a male NPT connection using thread sealant and a wrench
- Connect to pressure gauges with NPT connections
- Adapt to a wide range of Male NPT process connections
- Made in USA
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Connect a Quick-test hose directly to a DP transmitter using the bleeder port when the transmitter is not mounted on a 3 or 5 valve manifold or when the manifold is not easily accessible. This unique fitting makes a metal to metal seat on the transmitter and a Quick-test hose can be attached on the other side Connects through the bleeder screw port on a DP transmitter Made in USA
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Connect to pressure gauges, pressure calibrators and adapters easily and quickly Position a pressure gauge for easy reading Connect a Quick-test hose to an adapter in hard to reach places Durable forged construction Made in USA
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Excellent for safely connecting two Quick-test hoses through an enclosure, truck, or panel wall Bulkhead seals so no liquid or moisture can get into a control panel or enclosure Use to connect a Quick-test hose on the inside of an enclosure to a Quick-test hose on the outside of the enclosure Will connect through a wall that is up to 0.5 in (1.3 cm) thick Made in USA
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Ideal for situations where frequent calibration of a DP transmitter using the bleeder port is required This unique fitting makes a metal to metal seat on the transmitter and a Quick-test hose can be attached on the other side Connects through the bleeder screw port on a DP transmitter Made in USA
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Connect to hoses, comparators and pressure references with Male Medium Pressure adapters Connect to Crystal Engineering CPF hoses and GaugeCal XP Comparators Connect to Medium pressure connections
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Connect to SAE/MS ports on pressure calibrators, pipelines and other processes Connect using an o-ring seal avoids issues with vibration, heating and cooling Excellent for aerospace and automotive connections with female SAE/MS ports Made in USA
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Connect to any Medium Pressure connection Ideal for connecting to Autoclave Engineers, Butech, HIP or Parker Medium Pressure connections Connect to Crystal Engineering pressure gauges or pressure calibrators with Female CPF pressure connections Made in USA
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Outlet ports used on hand pumps, nitrogen sources, volume controllers Made in the USA
