User manual DHI PG9000

[. . . ] PG9000TM Piston Gauge Operation and Maintenance Manual © 1998-2010 Fluke Calibration Warning To prevent possible electrical shock, fire, or personal injury: Read all safety Information before you use the product. Use the product only as specified, or the protection supplied by the product can be compromised. Energy stored in these liquids and gases can be released unexpectedly and with extreme force. High-pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices. [. . . ] PG9000 allows the source of the value used for each variable to be defined. For example, the value of barometric pressure used to calculate current air density and to add to gauge pressure to define absolute pressure in absolute by atmosphere mode could come either from PG9000's internal sensor, an external barometer connected to PG9000's COM2, a user entered value or be set to standard atmospheric pressure. The PG9000 SETUP function allows the source (and in some cases the value) of the variables used in the pressure equations to be specified. In order to allow various combinations of sources and/or values to be setup and recalled, SETUP files can be created, stored, edited and recalled. The SETUP files also include certain variables used to determine PG9000 Ready/Not Ready status. Table 16 identifies the variables included in the SETUP file, the factory source setting for each variable and the normal value for each variable. These files can be stored and recalled so that specific combinations of variable sources and/or values can be conveniently recalled. It includes the factory default variable choices and normal values. Note SETUP files, USER values and PG9000's calculation capabilities can be used to calculate defined pressure in specific conditions independent of actual PG9000 operation. The SETUP function supports the following: · · · View SETUP files (see Section 3. 12. 2); Create/edit SETUP files (see Section 3. 12. 3); Select active SETUP file (see Section 3. 12. 1). Page 81 © 1998-2010 Fluke Calibration PG9000TM OPERATION AND MAINTENANCE MANUAL Table 16. SETUP File Choices, Factory Preferred Choice and Normal Value SOURCE CHOICES 1. Internal VARIABLE Atmospheric pressure NORMAL VALUE 101. 325 kPa (14. 6959 psi) Ambient temperature 1. COM2 0 Pa Ready/Not Ready Piston position Ready/Not Ready Maximum vacuum reference pressure in absolute by vacuum mode 1. User ± 2. 5 mm from midfloat position (default) 5 Pa (default) 1. User Note The factory default SETUP choice is the SETUP choice setting for all variables in a new SETUP file. SETUP file #1 is fixed to factory SETUP choices and cannot be altered. OPERATION To access the SETUP menu, press [SETUP] from the main run screen. The display is: Current SETUP: #01 1select 2view 3edit #nn in the upper right hand corner displays the number of the SETUP file that is currently active. Select <2view> to view the variable choices and values of the active SETUP file. See Sections 3. 12. 1 to 3. 12. 3 for detailed information on each SETUP function operation. 3. 12. 1 <1select> PURPOSE To change the active SETUP file number. Caution Changing the current SETUP file will change the source and in some cases the values of the variables used by PG9000 in calculating defined pressure. SETUP files should be selected and changed only by qualified personnel. Incorrect SETUP file selection may cause out of tolerance calculations and measurements. See Section 3. 12, PRINCIPLE, for information on SETUP files and their use. © 1998-2010 Fluke Calibration Page 82 3. [. . . ] The element used in the piston-cylinder mounting post to measure temperature. Indication of when conditions are present to make in tolerance pressure definitions based on specific criteria for each condition. Fluid head corrections correct the pressure relative to the reference level. File specifying the source of values for the variables used by PG9000 to calculate defined pressure. [. . . ]