Body'
Body' Guangzhou Instrument Calibration
Body' Seismic pressure gauge First check the appearance for obvious flaws and scratches, the joint threads for obvious burrs and damage, and the filling fluid in the case should be Clean and transparent, the liquid level is above the center of the case~.
Body' Body' The glass of the pressure gauge should be colorless and transparent, with no defects that block the reading. The marks on the index plate can be clearly identified. The pointer indication end should cover /~/ the length of the shortest index line. The pointer indication The width of the end should be no greater than the width of the dividing line.
Body' Body' Body' Body' Body' Body' Body' Pressure gauge instrument calibration
Body' Body' Body' When there is no pressure or vacuum in a pressure gauge without a stop pin, the pointer should be within the zero mark. , the zero mark should not exceed the specified allowable error absolute value times. For a pressure gauge with a stop pin, when there is no pressure or vacuum, the pointer should be close to the stop pin, and the indentation should not exceed the specified allowable error value.
Body' Body' For instrument measurement of indication error, the indication calibration of the pressure gauge is carried out according to the graduation line marked with numbers, and the pressure is gradually and steadily raised or lowered. When the indication value reaches the upper detection limit, the pressure is cut off. source, and after withstanding the voltage for 10 minutes, step back or step up the voltage smoothly in reverse order according to the original calibration point.
Service hotline Ms. Chen
Consultation (Foshan Metrology Calibration Center)
Body'
News