Ametek 742C Скачать руководство пользователя страница 31

Страница: 31 / 32

Содержание 742C

Страница 1: ...ECHNICAL MANUAL OPERATION MAINTENANCE AND INSTALLATION INSTRUCTIONS FOR MODELS 742R 742C 742V PRESSURE TRANSDUCER AND MODELS 742D DIFFERENTIAL PRESSURE TRANSDUCER PMT PRODUCTS AK796466 Rev D June 2017...

Страница 2: ...ring diagrams are not identified Dates of issue for original and changed pages are Original 0 Revision Revision B 1 TOTAL NUMBER OF PAGES IN THIS PUBLICATION IS 32 CONSISTING OF THE FOLLOWING Page Num...

Страница 3: ...re 1 1 and 1 2 RJD Changed available standard ranges pressure transducers and differential pressure transducers paragraph 1 3 1 page 1 4 and on Table 1 1 Reference Data Specification page1 5 and corre...

Страница 4: ...ons 2 1 3 FUNCTIONAL DESCRIPTION 3 1 Introduction 3 1 3 2 Functional Description 3 1 4 SCHEDULED MAINTENANCE 4 1 Introduction 4 1 4 2 Maintenance Procedures 4 1 5 TROUBLESHOOTING 5 1 Introduction 5 1...

Страница 5: ...l Pressure Transducer Model Designation 1 8 2 1 Controls and Indicators 2 2 6 1 Calibration Test Set up 4 20 mA dc Output Models 6 2 6 2 Calibration Test Setup 0 5 V dc Output Models 6 3 7 1 Outline D...

Страница 6: ...pressure is used in the operation of the pressure transducer calibration system Severe injury may result if personnel fail to observe safety precautions To prevent injury insure all connections are p...

Страница 7: ...ration is performed Refer to Page 6 4 CAUTION Do not place any cleaning tools inside the pressure port connection of the sensor Damage to the diaphragm can result The pressure transducer is to be full...

Страница 8: ...l of the transducer Each pressure transducer consists of a piezoresistive strain gage sensor electronics assembly a RFI board assembly a housing and connector assembly An access cover permits the adju...

Страница 9: ...FIGURE 1 1 Pressure Transducer Model 742R 742V or 742C 1 2...

Страница 10: ...FIGURE 1 2 Differential Pressure Transducer Model 742D 1 3...

Страница 11: ...and documents supplied with the transducers are listed in Table 1 2 1 6 SAFETY PRECAUTIONS Warnings and cautions appear throughout the text of this manual to highlight critical maintenance steps or p...

Страница 12: ...pressure models 0 150 WCD through 0 100 PSID with line pressure rating of 150 psi 0 200 PSID through 0 600 PSID with line pressure rating of 600 psi Electrical Output 4 mA 0 full scale input pressure...

Страница 13: ...TABLE 1 2 EQUIPMENT AND DOCUMENTS SUPPLIED Quantity Nomenclature Number 1 Transducer Pressure Refer to Fig 1 3 or 1 4 1 Technical Manual Operation and Maintenance Pressure Transducer 1 6...

Страница 14: ......

Страница 15: ......

Страница 16: ...and full scale range of the specific model at ambient temperature and barometric pressure 2 5 CALIBRATION CONNECTIONS Gauge Compound or Vacuum Models Pressure connections for the calibration consists...

Страница 17: ...Figure 2 1 Pressure and Differential Pressure Transducer Operating Controls 2 2...

Страница 18: ...input power on the pin A power and pin B power on the MS connector Pin D is the voltage out signal lead and pin E is the voltage output lead The housing is grounded through pin C on the MS connector N...

Страница 19: ...Figure 3 1 Functional Block Diagram 3 2...

Страница 20: ...is 0 psig or 0 psia whichever is appropriate and also when the applied pressure is 100 of the transducer s range If the readings are within the tolerances prescribed by the applicable system maintena...

Страница 21: ...tion and correction of equipment malfunctions and should not be considered sole authority for repair The sensor electrical assembly is computer calibrated at the factory as a unit There are no service...

Страница 22: ...djusting the transducer calibration 6 3 1 TEST CONDITIONS All performance tests shall be performed at room ambient conditions 20 C atmospheric pressure 6 3 2 CALIBRATION CHECK AND ADJUSTMENT Check and...

Страница 23: ...Figure 6 1 Calibration Test Set up 4 20 mA dc Output Models 6 2...

Страница 24: ...Figure 6 2 Calibration Test Set up 0 5 V dc Output Models 6 3...

Страница 25: ...accordance with the calibration system technical manual 2 For absolute and compound pressure transducers use a vacuum pump to obtain 30 Hg vacuum at the pressure port connection in accordance with th...

Страница 26: ...for voltage output option Perform SPAN adjustments to obtain the transducer s output as specified SPAN is accomplished by a screwdriver adjustment of the SPAN potentiometer located under the ZERO SPA...

Страница 27: ...merse the transducer or MS connector assembly in cleaning solutions Do not allow cleaning solutions to enter the transducer housing a Dry metal components by wiping with a clean lint free cloth CAUTIO...

Страница 28: ...the cable assembly prior to connecting cable to the pressure transducer 7 4 ELECTRICAL INTERFACE REQUIREMENTS Connect the cable assembly MS electrical connector to the MS electrical connector on the t...

Страница 29: ...Figure 7 1 Gauge Compound or Vacuum Pressure Transducer Outline Drawing 7 2...

Страница 30: ...Figure 7 2 Differential Pressure Transducer Outline Drawing 7 3...

Страница 31: ......

Страница 32: ...A PMT PRODUCTS 205 Keith Valley Road Horsham PA 19044 Phone 215 674 1234 Fax 215 354 1801 www ametekusg com...