Ashcroft 1495 - Low Pressure Receiver Gauge Manual de usuario

PRESSURE GAUGEINSTALLATION,OPERATION ANDMAINTENANCEI&M008-10098-5/02 (250-1353H) 1M AMR 5P1/08

10TYPICAL CALIBRATION CHARTINDICATED VALUE (PSI)True Value – Increasing – Increasing – Decreasing – Decreasing –PSI Without RAP With RAP Without RAP W

116.1 Calibration – Rotary Movement Gauges– Inspect gauge for accuracy. Many timesgauges are simply “off zero” and a simplepointer adjustment using th

12BOURDON TUBESEGMENTTIPLINKBACKPLATESOCKETROTARY MOVEMENTPINIONHAIRSPRINGFig. 2TYPE 1082 EXTERNAL ZERO ADJUST FEATURE*ARINGINSTRUCTIONS FOR USE:LOOSE

13TYPE 1082 TEST GAUGE CALIBRATION PROCEDUREFig. 4

14d. Remove pointer and reassemble dial anddial screws (finger tight).e. Lightly press pointer onto pinion.f. Check accuracy at full scale. If error e

1525Vs1009 DURALIFE®PRESSURE GAUGE CALIBRATION

167.0 DIAPHRAGM SEALS7.1 General – A diaphragm seal (isolator) is adevice which is attached to the inlet connec-tion of a pressure instrument to isola

17tions must pass before they reach the bourdontube. The dampener reduces the magnitude ofthe pressure pulse thus extending the life ofthe Bourdon tub

189.0 RESOURCES9.1 Training Videos9.1.1 Test gauge calibration9.1.2 1009 Duralife®gauge calibration9.1.3 Duragauge®gauge calibration9.1.4 Diaphragm se

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Visit our web site www.ashcroft.comAshcroft Inc.,250 East Main StreetStratford, CT 06614-5145U.S.A.Tel: 203-378-8281Fax: 203-385-0408 (Domestic)Fax: 2

3PageCONTENTS1.0 Selection and Application1.1 Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4CONTENTS7.0 Diaphragm Seals7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.0 SELECTION & APPLICATIONUsers should become familiar with ASMEB40.1 (Gauges – Pressure Indicating DialType – Elastic Element) before specifying

62.0 TEMPERATURE2.1 Ambient Temperature – To ensure longlife and accuracy, pressure gauges shouldpreferably be used at an ambient tempera-ture between

7also be drained from the case and the front ringloosened before autoclaving.3.0 INSTALLATION3.1 Location – Whenever possible, gaugesshould be located

4.5 Other considerations – These include (a)bent or unattached pointers due to extremepressure pulsation; (b) broken windows whichshould be replaced t

9Calibration chart – After recording all of thereadings it is necessary to calculate the errorsassociated with each test point using the fol-lowing fo