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Type:

Display:

Liquid Filled?

Working Pressure Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Dial Size:

Vacuum Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Accuracy:

±% FS

Mount / Connection Location:

Scale Units:

Media:

Sensor Technology:

Help with Pressure Gauges specifications:

Type
           
   Your choices are...         
   Absolute       Absolute pressure is relative to a perfect vacuum. 
   Differential       Differential pressure is the difference between two input pressures. 
   Gauge       Gauge pressure is the pressure measured above the local atmospheric pressure. It is the most common pressure measurement. 
   Compound       Devices can display both positive and negative (vacuum) pressures. 
   Sealed       Sealed gauge pressure is relative to one atmosphere at sea level (14.7 psi) regardless of local atmospheric pressure. 
   Vacuum       Vacuum pressure is lower than atmospheric pressure. 
   Other       Other unlisted, specialized, or proprietary measurement types. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Display       
   Your choices are...         
   Analog       The device has an analog meter or simple visual indicator. 
   Digital       The device has a display for numerical values. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Liquid Filled       Liquid filled gauges are filled with a liquid such as glycerin or silicone oil to protect the gauge from the harmful effects of vibration and pulsation. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Specifications
   Working Pressure Range       The maximum allowable pressure at which a system or piece of equipment is designed to operate safely. The extremes of this range should be determined in accordance with the expected pressure range the device must operate within. It is common practice that this value should not exceed 75% of the devices maximum rated range. For example: if the device has a maximum rated range of 100 psi then the working range should not exceed 75 psi. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
   Dial Size:       The diameter of the gauge. The dial size is usually determined by the readability requirements; larger for remote reading and smaller where the gauge is close to the operator. Generally, a requirement for higher accuracy dictates a larger dial size for display of readable small pressure scale increments. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Vacuum Range       Vacuum range is the span of pressures from the lowest vacuum pressure to the highest vacuum pressure (e.g., from 0 to 30 inches of mercury VAC). 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
   Operating Temperature       The full-required range of ambient operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
   Accuracy       The difference (error) between the true value and the indication expressed as percent of the span. It includes the combined effects of method, observer, apparatus and environment. ASME B40.1 and DIN accuracy grades are frequently used: Grade 4A (0.1% Full Scale) Grade 3A (0.25% Full Scale) Grade 2A (0.5% Full Scale) Grade 1A (1% Full Scale) Grade A (1% middle half, 2% first and last quarters) Grade B (2% middle half, 3% first and last quarters) Grade C (3% middle half, 4% first and last quarters) Grade D (5% Full Scale) Measurement Accuracy (% of Full Scale). In cases where the accuracy differs between middle span and the first and last quarters of the scale, the largest % error is reported. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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Mount / Connection Location
           
   Your choices are...         
   Bottom       Port is located at the bottom of the gauge. 
   Center Back       Port is located at the center back. 
   Lower Back       Port is located at the on the back lower. 
   Flange       Mounted by a flange around the face or back of the gauge. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Scale Units
   Scale Units:      Scale Units: Select the desired pressure measurement units. Common units are given. Special units and compound ranges are usually available.
   Your choices are...         
   psi       Pounds per square inch: psi, PSI, lb./in^2, or lb./sq. in. 
   kPa       kilo Pascal’s - standard atmospheric pressure is 101,325 Pa or 101.325 kPa 
   bar       A unit of measure of atmospheric pressure. One bar is equal to 0.987 atmospheres 
   inches of Hg       One inch of mercury is equivalent to 33.86 millibars. 
   cm of Hg       A metric measure of pressure. 
   inches of H2O       The pressure equivalent for 1 inch of water is .00245 atm 
   feet of H2O       The pressure equivalent for 1 foot of water is .0295 atm 
   kg/cm2       The pressure equivalent for 1 kg/cm2 is .9678 atm 
   oz./in2       The pressure equivalent for 1 atmosphere of pressure is approx. 235 oz. / in2  
   Other       Other unlisted or specialized scale units. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Media
           
   Your choices are...         
   Liquid       The device measures the pressure of liquids. 
   Gas       The device measures the pressure of gases. 
   Hazardous       The device is rated by the manufacturer for hazardous duty. 
   Other       Other unlisted, specialized, or proprietary materials to measure. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Technology Used
   Sensor Technology:       
   Your choices are...         
   Mechanical Deflection       An elastic or flexible element mechanically deflects with a change in pressure, for example a diaphragm, Bourdon tube, or bellows. 
   Piston       A sealed piston / cylinder measures changes in pressure. 
   Strain Gauge       Strain gages (strain-sensitive variable resistors) are bonded to parts of the structure that deform as the pressure changes. These strain gages are typically used as elements in a Wheatstone bridge circuit, which is used to make the measurement. 
   Semiconductor Piezoresistive       Piezoresistive sensors are based on semiconductor technology. The change in resistance is not only because of a change in the length and width (as it is with strain gage) but because of a shift of electrical charges within the resistor. These are very sensitive devices. 
   Piezoelectric       Piezoelectric pressure sensors measure dynamic and quasi-static pressures. The common modes of operation are charge mode, which generates a high-impedance charge output; and voltage mode, which uses an amplifier to convert the high-impedance charge into a low-impedance output voltage. 
   Thin Film       An extremely thin layer of material is deposited on a substrate by sputtering, chemical vapor deposition, or other technique. This technology incorporates a compact design with good temperature stability. There are a variety of materials used in thin film technology, such as titanium nitride and polysilicon. 
   MEMS       Microelectromechanical systems (MEMS) are typically manufactured by silicon surface micromachining. 
   Variable Capacitance       The capacitance change results from the movement of a diaphragm element. The deflection of the diaphragm causes a change in capacitance that is detected by a bridge circuit. 
   Vibrating Element       These devices use a vibrating element technology, such as silicon resonance. 
   Other       Other unlisted, specialized, or proprietary technologies. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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