Fluke A20M-AF ユーザーズマニュアル

 

Page 115 

© 2007 DH Instruments, a Fluke Company 

 

To open the RPM4 case, first remove the RPM4 from the HPMS (see Section 5.4.1).  Once 
the RPM4 is removed from the HPMS, proceed as follows: 

n  Place the RPM4 bottom side up on a stable, flat surface. 

o  Remove the four (4) Phillips head screws at the four corners of the RPM4 bottom panel. 

p  Remove the four plastic feet by sliding the away from the case.  Do not pull them straight 

up as this will damage their retaining tab. 

q  While holding the bottom panel and cover together, turn the RPM4 over and place it 

bottom side down. 

r  Lift the top cover off of the bottom panel leaving the front and rear panels behind with the 

bottom panel.  The front and rear panel fit into guide slots on the top cover. 

s  To reassemble, reverse the procedure.  Before putting the cover on, check that the front 

is well seated in its guide slots on the bottom panel. 

RPM4 uses FLASH memory.  This allows the embedded software that controls RPM4 
operations and functions to be loaded into RPM4 over its COM1 port from a computer with a 
simple FLASH loading utility program. 

To replace corrupted software or upgrade your software, access the DHI  web site at 
www.dhinstruments.com and go to SOFTWARE.  A FLASH loading utility and the latest 
RPM4 software are available for download at no charge.  If you do not have access to the 

1. HPMS TEST port connection 
2.  RPM4 Hi Q-RPT connection 
3.  RPM4 Lo Q-RPT connection 
4. RPM4 A70M/A20M-AF 
5.  Lo Q-RPT connection tube 
6.  Lo RPT shutoff valve rear connection 
7.  Lo RPT shutoff valve side connection 

8.  RPM4 rack mount/HPMS connection 
9.  TEST port (DH500 F) 
10. Hi Q-RPT connection tube 
11. Rack mount bracket/rear support     
 bracket 

connection 

12. Rear support bracket 
13. Rear support bracket/HPMS connection 

Figure 12.  RPM4/HPMS disassembly view