DH Instruments PPCK PLUS, Operation And Maintenance Manual

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PPCK+™ Operation and Maintenance Manual
©2001 DH Instruments, Inc .
Page 84
HEAD
Purpose Read or set the head settings.
Command
Query “HEAD h,u,g ”
“HEAD?”
Classic “HEAD= h,u,g ”
“HEAD”
Defaults “HEAD 0,cm,N2”
Arguments H
U
G
The height of the test in relation to the PPCK+. This will be positive if
the test is above the PPCK+, or negative if below the PPCK+.
This value can be between -9999 and 9999. Setting this value to ‘0’
will disable the head correction.
The height units. This must be “in” or “cm”.
The gas type. This must be “N2”, “Air” or “He”.
Remarks The PPCK+ can make a head correction to allow it to display the pressure at the test
instead of the pressure at the PPCK+.
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 3.2.7, 3.4.2
HS
Purpose Read or set the hold limit for automated pressure control.
Command
Query “HS n ”
“HS?”
Classic “HS= n ”
“HS”
Arguments n: The hold limit in the current pressure units.
Remarks The hold limit can be read and set as a pressure.
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 ‘n’ argument was invalid.
See Also 3.1.2.3, 3.1.2.4, 3.1.2.5, 3.2.3, 3.2.6, “HS%”