DH Instruments PPC3 - Page 104

PPC3™ OPERATION AND MAINTENANCE MANUAL
© 2002-2007 DH Instruments, a Fluke Company Page 94
GPIB
Purpose Read or set the GPIB interface address.
Command
Query
“GPIB addr”
“GPIB?”
Classic “GPIB=addr”
“GPIB”
Defaults “GPIB 10”
Arguments addr: The address of the GPIB488 interface (1 to 31)
Remarks The GPIB address is changed following the reply of this command. Each device on a GPIB
interface bus requires a unique address.
Example
(enhanced)
Cmd sent:
Query reply
“GPIB 21”
“21” (No reply if GPIB-488)
Example
(enhanced)
Cmd sent:
Query reply
“GPIB? 21”
“21”
Example
(classic)
Sent:
Reply:
“GPIB=21”
“21”
Errors ERR# 6: The argument is not within given limits.
See Also: 3.5.2.2
HEAD
Purpose Read or set the fluid head settings.
Command
Query
“HEAD h,u,f”
“HEAD?”
Classic “HEAD=h,u,f”
“HEAD”
Defaults “HEAD 0,cm,N2”
Arguments h: The height of the test in relation to the PPC3. This is positive if the test
is above the PPC3, or negative if below the PPC3. This value can be between
- 9999 and 9999. Setting this value to ‘0’ disables the head correction.
u: The height units. This must be “in” or “cm”.
f: The fluid type. This must be “N2”, “Air”, “He”, “Oil”, “H2O”, or “User”.
Remarks The PPC3 can make a fluid head correction to allow it to display the pressure at the level of
the device under test instead of at the level of the PPC3.
Example
(enhanced)
Cmd sent:
Query reply:
“HEAD 10,in,N2”
“10, in, N2”
Example
(classic)
Sent:
Reply:
“HEAD=10,in,N2”
“10, in, N2”
Errors ERR# 6: The arguments are not within given limits.
See Also: 3.3.7, 3.5.3
HS
Purpose Read or set the automated pressure control hold limit as a pressure value.
Command
Query
“HS hold”
“HS?”
Classic “HS=hold”
“HS”
Arguments Hold: The hold limit in the current pressure unit of measure.
Remarks The hold limit can be read and set as a pressure.
Example
(enhanced)
Cmd sent:
Query reply:
“HS .1”
“0.1 kPa” (No reply if GPIB-488)
Example
(enhanced)
Cmd sent:
Query reply:
“HS? .1”
“0.1 kPa”
Example
(classic)
Sent:
Reply:
“HS=0.1”
“0.1 kPa”
Errors ERR# 6 The ‘hold’ argument was invalid.
See Also “HS%”
3.4.6.1, 3.2.2