User manual FLUKE HPMS A6000-AF

[. . . ] 33A6-4-30-1 RPM3/HPMS A30000/A6000-AF Operation and Maintenance Manual NSN 6685-01-470-8667 (2 of 2) 1 August 2000 ©2000 DH Instruments, Inc. RPM3/HPMS A30000/A6000-AF Operation and Maintenance Manual High pressure liquids and gases are potentially hazardous. 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. © 2000 DH Instruments, Inc. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of DH Instruments, Inc. [. . . ] Select <1on> to turn AutoZ ON and return to the main run screen. If AutoZ is ON for the current range and measurement mode, <1off> is displayed in the menu accessed by pressing [SPECIAL] and selecting <1AutoZ>. Select <1off> to turn AutoZ OFF and return to the main run screen. AutoZ ON is indicated by a <z> displaying in the main run screen, top line, third character from the right. In absolute mode, when AutoZ is OFF, the [AutoZ] key is disabled and ZOFFSET is NOT applied. In gauge mode, when AutoZ is OFF, the [AutoZ] key is disabled and "dynamic compensation for atmospheric pressure" is OFF. ZOFFSET is still applied to tare out atmospheric pressure. 3. 4. 1. 2 VIEW AUTOZ To view the current ZOFFSET for the active range and measurement mode press [SPECIAL] and select <1AutoZ>, <2view>. The display is: 1 2 1. ZOFFSET absolute H3 Current measurement mode. 3. 3 ZOFFSET should be zero in absolute mode when the RPM3 is new or has just been calibrated. ZOFFSET should be roughly equal to atmospheric pressure in gauge mode. The value of ZOFFSET is always displayed and entered in Pascal (Pa) regardless of the current RPM3 measurement unit as RPM3's internal operations are in Pa. Page 69 ©2000 DH Instruments, Inc. RPM3/HPMS A30000/A6000-AF Operation and Maintenance Manual 3. 4. 1. 3 EDIT AutoZ The edit AutoZ function should be used with caution as entering inappropriate values and turning ON AutoZ may result in incorrect autozeroing and out of tolerance measurements. In normal operation, the value of ZOFFSET should be changed using the run AutoZ function (see Section 3. 2. 10). To edit ZOFFSET for the active range and measurement mode press [SPECIAL] and select <1AutoZ>, <3edit>. The display is: 1 2 1. ZOFFSET absolute H3 Current measurement mode. 3. 3 The value of ZOFFSET is always displayed and entered in Pascal (Pa) regardless of the current RPM3 measurement unit. In gauge mode, the value of ZOFFSET is approximately atmospheric pressure. 3. 4. 2 SDS m PURPOSE SDS is not used in RPM3 A30000/A6000-AF. 3. 4. 3 ATM m PURPOSE To view the value of atmospheric pressure as measured by the on-board barometer. m PRINCIPLE RPM3 has an independent on-board barometer connected to the ATM port on the RPM3 rear panel. The atmospheric pressure measurements made by the on-board barometer are only used for dynamic compensation of atmospheric pressure in gauge mode (see Section 3. 4. 1). See Sections 1. 2. 2. 2 and 5. 2. 2. The on-board barometer is used only for measuring changes in atmospheric pressure over short periods of time in gauge measurement mode. RPM3 measurement uncertainty does not depend on the absolute measurement uncertainty of the on-board barometer, only on its resolution and short term repeatability (see Section 3. 4. 1, Gauge Mode with an Absolute RPT, Dynamic Compensation for Atmospheric Pressure). ©2000 DH Instruments, Inc. Page 70 RPM3/HPMS A30000/A6000-AF Operation and Maintenance Manual m OPERATION To view the current reading of the on-board barometer press [SPECIAL] and select <4Internal>, <7Atm>. The display is in the current pressure units and current resolution setting of the active RPM3 range. 3. 4. 4 REMOTE m PURPOSE To configure the RPM3 COM1, COM2 and IEEE-488 (GPIB) communication ports. To test COM1 and COM2 communications. m PRINCIPLE The RPM3 has two RS-232 communications ports referred to as COM1 and COM2 and a single IEEE-488 (GPIB) port. COM1 or the IEEE-488 port is for communicating with a host computer (see Chapter 4), and COM2 is reserved for communicating with an external device (e. g. , a multimeter, RPM, etc. ). The self- test allows verification that the RPM3 RS-232 ports (COM1 and COM2) are operating properly and that a valid interface cable is being used. In the first, COM1 sends a message to COM2 and in the second COM2 sends a message to COM1. [. . . ] Hi/Lo A DISPLAY function in which the highest and lowest pressure measurements since reset are recorded and displayed. The Hydraulic Gauge Calibrator system A30000/A6000-AF and an OPG1-30000-AF. made up and an RPM3 HGC-30000-AF HPMS High Pressure Mounting System. A mounting system for RPM3 A30000/A6000 that positions the units and supports the hardware to isolate the Lo RPT when it is not in use. [. . . ]