DH Instruments PPCK PLUS, Operation And Maintenance Manual

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PPCK+™ Operation and Maintenance Manual
©2001 DH Instruments, Inc .
Page 94
RATE
Purpose Read the next available pressure rate of change.
Query “RATE?”
Classic “RATE”
Remarks The next available pressure rate of change in the current pressure units per second is
returned.
After receiving this program message, the PPCK+ will reply back with the data once a
new pressure measurement cycle is complete. This can take up to 1.5 seconds.
Example
(enhanced) Query sent:
Query reply: “RATE?”
“0.01 kPa/s”
Example
(classic) Sent:
Reply: “RATE”
“0.01 kPa/s”
See Also 3.1.2.5, “PRR”, “QPRR”
RATES
Purpose Read or change the fixed rate generation slow and fast rates.
Command
Query “RATES FastRate, SlowRate ”
“RATES?”
Classic “RANGE= FastRate, SlowRate ”
“RANGE”
Default Range dependent
Arguments FastRate The rate set (units/s) when the manual up or down and fast keys are
pressed, or when a “PSF”, “IF=1” or “DF=1” command is executed.
SlowRate: The rate set (units/s) when the manual up or down key is pressed, or
when a “PSS”, “IS=1” or “DS=1” command is executed.
Remarks The PPCK+ executes fixed rate generations using one of these two target rates. It will
maintain the rate until the user aborts the generation. The fast rate default is the
PPCK+ full scale in 60 seconds, and the slow speed is 10% of the fast.
Example
(enhanced) Cmd sent:
Query reply: “RATES?”
“50.000 psi/s, 5.000 psi/s”
Example
(classic) Sent:
Reply: “RATES”
“50.000 psi/s, 5.000 psi/s”
Errors ERR# 6: Invalid argument.
See Also 3.1.2.2, “DF”, “DS”, “IF”, “IS”, “RS”