DH Instruments PPCK PLUS, Operation And Maintenance Manual

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PPCK+™ Operation and Maintenance Manual
Page 99
©2001 DH Instruments, Inc .
SR
Purpose Read the next available Ready//Not Ready status.
Query “SR?”
Classic “SR”
Remarks The current Ready status can be read using this program message.
"NR "
The pressure is Not Ready within the limits defined by the control mode
and current control parameters.
"R "
The pressure meets the Ready criteria. The status is replied when the next
pressure measurement is finished.
"ER "
The previous request pressure generation failed to complete due to failure
of the hardware (leaks, gas supply or valve failures).
"OL "
The pressure has exceeded the user specified upper limit. Only decreasing
pressure excursions will be allowed.
"OP "
The pressure has exceeded the factory maximum pressure limit. Normal
operation cannot continue.
Example
(enhanced) Query sent:
Query reply: “SR?”
“NR”
Example
(classic) Sent:
Reply: “SR”
“NR”
See Also 3.1.2.5, 3.2.3, 3.1.2.4, “PR”, “PRR”,“HS”, “SS%”
SS%
Purpose Read or set the current stability limit.
Command
Query “SS% n ”
“SS%?”
Classic “SS%= n ”
“SS%”
Arguments n: The stability limit in % FS of the current active range.
Remarks The stability limit can be read and set as a percent of the full scale range of the RPT.
If this program message is used to set the stability limit, the PPCK+ will then use
CUSTOM control settings.
Example
(enhanced) Cmd sent:
Query reply: “SS% .1”
“0.10 %”
Example
(classic) Sent:
Reply: “SS%=.1”
“0.10 %”
Errors ERR# 6: The argument was invalid.
See Also 3.1.2.5, 3.1.2.4, 3.2.3, 3.2.6, “SS”