Anti-outbreak instrument standard calibrator

Type B anti-outbreak instrument standard calibrator
(hereinafter referred to as the calibrator) is suitable for inspection and calibration of various types of anti-outbreak instruments that use pressure sensing elements as detection probes.
bMain technical indicators
br/> bMeasuring range
br/> b～
br/> br/> bResolution
br/> br/> bAccuracy
b .
br/> bUsing conditions
br/> br/> bAmbient temperature
b℃
b～
br/> b℃
bbr /> bRelative temperature
br/> b≦
b%
br/> bAtmospheric pressure
br/> b～
br/> br/> b Overload pressure
br/> bFull scale
b.
b times
b Anti-outbreak instrument standard calibrator
b Rules
br/> b In normal use, the standard calibrator shall be calibrated by the user every
br/> b days.
br/> bThe standard calibrator in use has been tested and the basic error exceeds
b When specified requirements are met, it should be stopped immediately for calibration.
br/> b The inspection and calibration of the standard calibrator should be carried out according to the range specified by the manufacturer.
br/> b The basic error allowed by the calibrator The absolute value is less than or equal to the absolute value of the allowable basic error of the standard calibrator under inspection

b.
br/> b The pressure range of the calibrator should meet the maximum inspection and calibration pressure of the standard calibrator Range range.
b Calibration method
br/> b Detection
br/> br/> b Calibrator
b and standard calibrator preheating time are recommended< br/> br/> br/> br/> br/> br/> b but not less than
br/> b.
bbr/> bThe detection points should be evenly distributed on the standard calibrator Verify that there are at least five uniformly distributed points within the calibration range
b (
b includes the upper and lower measurement limit points
b)
b.
br/> b Use comparison Method for testing. Correctly connect the calibrator and the standard calibrator with a hose and check that the air tightness meets the requirements before testing.
br/> bBasic error inspection. Within the range of the standard calibrator Read the display value of each detection point of the forward stroke from low to high and hold when it reaches the maximum value
br/> b Then gradually reduce to the minimum value and read the display value of each detection point of the reverse stroke.
The actual measured basic error of b calibration is calculated according to the following formula
br/>
br/> br/> bbr/>
bQ

bFormula
bQ
bBasic error of actual measurement
br/> br/> br/> br/> bStandard calibrator Display value
br/> b or
b (H
br/> b)
br/> bbr/> br/> bThe calibrator displays the value
br/> b or
b (H
br/> b)
br/> b Range of standard calibrator
br/> b or
b (H
br/> b)
br/> b calibration
b If the standard calibrator finds during testing that the actual measured basic error exceeds the allowable error range of the standard calibrator, it should be calibrated.
b.
b Correctly connect the calibration standard calibrator with a hose. First check that the air tightness meets the requirements, and then adjust the display value of the calibrator to the range under normal pressure
b Lower limit zero point After stabilization, adjust the zero point difference value of the standard calibrator back to the original position.
bb.
b Gradually increase the calibrator display value to the upper limit point of the standard calibrator range. After stabilizing, adjust the upper limit difference value of the standard calibrator back to the upper limit point.
b.
bThe standard calibrator will be inspected after the calibration and debugging is completed.
bNote
br/> bAdjustment of the zero point and full scale of the standard calibrator should be carried out according to the instructions for use of the standard calibrator.
br/> b Inspection is carried out according to the first
br/> b Inspection
br/> b step.