1. Pressure

The pressure based on vacuum as the zero point reference.

2. Positive pressure (force)

A pressure greater than atmospheric pressure based on atmospheric pressure.

3. Negative pressure (force) (vacuum)

Based on atmospheric pressure, the pressure is lower than atmospheric pressure.

4.Differential pressure (force)

The difference between two pressures.

5.Gauge pressure (force)

A pressure greater or less than atmospheric pressure based on atmospheric pressure.

6.pressure gauge

An instrument used to measure positive pressure based on atmospheric pressure.

7.vacuum gauge

An instrument used to measure negative pressure based on atmospheric pressure.

8.pressure vacuum gauge

An instrument used to measure positive and negative pressure based on atmospheric pressure.

9.General pressure gauge

Accuracy level equal to or lower than1.0Pressure gauges, vacuum gauges, and pressure vacuum gauges.

10.Lightly tap displacement

The change in the measured quantity displayed on the instrument after lightly tapping the instrument housing, with the input remaining unchanged.

11.overpressure

Apply a load greater than its measurement upper limit to the instrument.

12.Alternating pressure

Apply a load to the instrument that alternates back and forth with a certain amplitude, frequency, and pattern.

13.backlash

Within the measurement range, when the input pressure rises or falls, the difference between the two corresponding output values of the instrument at the same measurement point after tapping lightly is ******.

14.temperature effect

The error caused by changes in temperature parameters when other environmental parameters are kept at reference values.

15.measurement range

The range of the measured object measured with the prescribed accuracy.

16.Scale range

The range defined by the starting and ending values of the scale.