数字压力计

数字压力计是采用数字显示被测数字压力量值的压力计，可以用来测量表压，真空和绝压。数字压力机可以分为单功能型和多功能型，单功能型压力机只具有测量压力功能，多功能型压力计即具有测量压力功能，还具有测量非压力参数的功能，如输出电压供电，同时测量电流等。可用于计量室或现场在线检测、校验压力变送器、弹簧管式普通（精密）压力表、压力控制器等0.05级可传递压力仪器，仪表量程功能丰富，一表多用，具有多种显示风格，可同时显示压力电流、压力水柱或压力 kgf/cm2电流百分比。仪表具有超量程报警功能，当所加压力超出额定满量程时，仪表将显示OVER RANGE!P并且内置蜂鸣器将断续发声，以表示压力电流超出满量程，应停止加压，并卸掉部分压力使其在规定量程内，以免损坏压力传感器。

Digital pressure gauges are pressure measuring instruments that display measured pressure values digitally, and can measure gauge pressure, vacuum and absolute pressure. They can be divided into single-function and multi-function types. Single-function models only have pressure measurement capabilities, while multi-function models not only support pressure measurement, but also can measure non-pressure parameters, such as outputting voltage for power supply and measuring current simultaneously. They can be used in metrology rooms or on-site online detection and calibration of pressure transmitters, spring tube-type ordinary (precision) pressure gauges, pressure controllers and other Grade 0.05 transferable pressure instruments. The instrument has rich range functions, enables one instrument to serve multiple purposes, and offers multiple display modes, which can simultaneously display pressure and current, pressure and water column, or pressure in kgf/cm² and current percentage. The instrument is equipped with an over-range alarm function: when the applied pressure exceeds the rated full scale, the instrument will display "OVER RANGE!P" and the built-in buzzer will make intermittent sounds, indicating that the pressure and current have exceeded the full scale. At this time, the pressure application should be stopped and part of the pressure should be released to keep it within the specified range, so as to avoid damaging the pressure sensor.

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背景与挑战

背景概述

数字压力计是一种数字显示的压力测量仪器，用于测量表压、真空和绝压，可分为单功能型和多功能型，其中多功能型还能测量非压力参数。它广泛应用于计量室或现场在线检测、校验压力变送器和压力表等仪器，具有量程丰富、一表多用、多种显示风格和超量程报警功能。