VS Series Helium Mass Spectrometer Leak Detectors
A-6
DRAFT 4
/23/15
?LEAK Reports a six-character number consisting of a two-digit leak rate mantissa
with decimal point after the first digit followed by E - then a two digit
number, which is the leak rate range exponent (e.g., 1.3E-08).
?LKEXPIRE Reports the internal calibrated leak expiration date mm/dd/yyyy.
?LEAKTEMP Reports the internal calibrated leak temperature that the factory calibration
was performed at (degrees C).
?LP Reports the current leak rate along with the test port and system pressures.
?LPV Reports the current Leak Rate, Pressures and Valve state.
?ML-XFER Reports the current contra to midstage crossover pressure setpoint in Torr.
The response is in exponential format (in Torr): X.XE-XX
?PREHEAT Command to query if the preheat Ion source PCB is installed
A response of 0 = No, 1 = Yes
?PREHEAT-TIME A numerical response in minutes.
?PRESSURES Reports two lines. Each begins with a <cr><lf>. The first line consists of the
words test port TC followed by a number in mTorr. The second line
consists of the words system TC followed by a number in uTorr.
?PWDLEVEL Response will be a number (1, 2 or 3).
?PWDONOFF Reports status of system password (ON or OFF).
?QUICK-CAL Reports whether Fast or Full Calibration is chosen if a calibration were to
be started.
?RANGESTOP Reports the value of the Range Stop variable.
?REJECT Reports the reject leak rate setpoint (e.g., 7.0E-05) (where x is a number
from 1 to 4 or the letter A).
?>xREJECT Reports the status of a reject set point (where x is a number from 1 to 4 or
the letter A).
?xREJECT Reports the reject leak rate setpoint (e.g., 7.0E-05) (where x is a number
from 1 to 4 or the letter A).
?ROUGH Reports the currently stored Test Sequencer rough time used as part of
setting up the Auto Sequencer.
?RSONOFF Reports the status of the Rangestop function as Enabled or Disabled.
?SEQONOFF Reports the status of the Auto Sequencer as Enabled or Disabled.
Table A-1 Internal Operating Parameters (Continued)
Inquiry Response
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