File $Source: /home/juda/www/hrc_flight/RCS/antico_hv_off.html,v $
Version $Revision: 1.3 $
Last Update $Date: 1998/05/13 16:14:33 $
HRC CCB Status Approved

OP03 Procedures op03:

HRC Command Sequences

Antico PMT HV Off

Description:

This sequence turns off the HV to the anticoincidence shield photomultiplier tubes (PMTs). Serial digital commands to turn off both PMTs are issued even though only one should be on. After the HV is turned off the commanded HV levels are set to zero.

Cautions/Restrictions:

None

Delta-Time Command Mnemonic Description Cmd Field Mnemonic Data Parameter Telemetry Verifier Expected Value Notes
00:00:01.000 2S1HVOF Shield PMT#1 HVPS off     2S1ONST OFF sd0500
00:00:01.000 2S2HVOF Shield PMT#2 HVPS off     2S2ONST OFF sd0d00
00:00:01.000 2S1STHV Set shield PMT#1 HV step to 0 2S1STHV2 0 2S1HVST 0 sd0600
00:00:01.000 2S2STHV Set shield PMT#2 HV step to 0 2S2STHV2 0 2S2HVST 0 sd0e00

$Log: antico_hv_off.html,v $

Revision 1.3 1998/05/13 16:14:33 juda

Added "File" entry to version table

Revision 1.2 1998/05/06 19:05:09 juda

Marked as approved

Revision 1.1 1998/05/06 12:28:16 juda

Initial revision

Dr. Michael Juda
Harvard-Smithsonian Center for Astrophysics
60 Garden Street, Mail Stop 70
Cambridge, MA 02138, USA
Ph.: (617) 495-7062
Fax: (617) 495-7356
E-mail: mjuda@cfa.harvard.edu