What is the pressure if the gauge reading is zero?

Absolute pressure is measured with reference to an absolute (and theoretical) vacuum. For example, an ordinary pressure gauge reading of zero does not mean there is no pressure; it simply means there is no pressure in excess of the local atmospheric pressure.

Is digital pressure gauge accurate?

Two counts of error per 2,000 digital counts gives us a 0.1% minimum linear accuracy. In terms of PSI, every reading displayed on the gauge will be within 2 PSI of the actual pressure in the vessel or line being monitored.

What is zero adjustment in pressure gauge?

Pressure gauges and differential pressure gauges typically have a micrometer type pointer, where zero can only be adjusted after opening the bezel and glass, which is not practical for liquid filled gauges.

What does it mean pressure zero?

Absolute pressure is measured relative to absolute zero on the pressure scale, which is a perfect vacuum. (Absolute pressure can never be negative.) Absolute pressure is indicated by p, and is identical to the familiar thermodynamic pressure.

What is zero & span adjustment?

A “zero” adjustment is always achieved by adding or subtracting some quantity, just like the -intercept term adds or subtracts to the product . A “span” adjustment is always achieved by multiplying or dividing some quantity, just like the slope forms a product with our input variable .

What kind of pressure gauges do we offer?

We provide some of the world’s most popular digital pressure gauges for a variety of applications and markets. Included are intrinsically safe “percent of reading” gauges, process gauges, differential pressure gauges, panel mounted gauges, and gauges specifically designed for use in the maritime industry.

How long do digital pressure gauges last?

Whether you’re looking for a pressure gauge with long battery life to mount in hard to reach locations, a pressure gauge to collect and store readings in the field in extreme conditions, or one that doesn’t require recalibration for up to three years, we have the perfect digital pressure gauge for you.

What is the accuracy of the absolute pressure gauge?

± 0.1% of reading, 0.05% or 0.02% of FS; 0 to 15 000 psia Our intrinsically safe absolute pressure gauge is the oil & gas industry standard for hazardous area pressure measurement. ± 0.1% of DP reading up to 100 psi Measure low differential pressure at static pressures up to 100 psi. It is also the highest accuracy vacuum gauge we offer.

What types of gauges are used in the maritime industry?

Included are intrinsically safe “percent of reading” gauges, process gauges, differential pressure gauges, panel mounted gauges, and gauges specifically designed for use in the maritime industry.