Other unlisted, specialized, or proprietary measurement types.
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
Other unlisted, specialized, or proprietary technologies.
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Signal Output
Signal output is the type of electrical signal produced.
Analog current levels or transmitters such as 4 – 20 mA are suitable for sending signals over long distances. Current is imposed on the output circuit proportional to the measurement. Feedback is used to provide the appropriate current regardless of line noise and impedance.
Other unlisted, specialized, or proprietary outputs.
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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.
