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Technical Information
The following table lists inquiries that are used to determine internal operating
parameters. All inquiries, except VER, begin with ? and end with <CR>.
Table 16 Internal Operating Parameters
Inquiry
?ALL
?AZ<0
?CALOK
?CL-XFER
?CPLOCKOUT
?CURRDATE
?DISPLAY
?EMISSION
?EXPONENT
?EXTLEAK
?GAIN
?INTEXT
?IOBOARD
?IO_VER
?IONCHAMBER
?LANGUAGE
Agilent Helium Leak Detector User Manual
Response
Responds with four lines. Each begins with a <cr><lf>. The first line reports the ion chamber
value. The second line reports the emission value. The third line reports the value of the
offset variable. The fourth line reports the gain value.
Reports the status of the Auto-zero < 0 function, ON or OFF.
Reports the status of the last calibration.
Reports the currently stored contra-flow mode crossover pressure.
Reports the status of the control panel lockout feature, ON or OFF.
Reports the current system date and time in the following format: 3 05/25/2005
04:19:03.35 1 where 3 is the day of the week (0 = Sunday, 1 = Monday, etc), 05/25/2005
is mm/dd/yyyy (date), 04:19:03.35 is hh/mm/ss/ms (time) and 1 is PM
(0=AM, 1=PM, 2=24 hour).
Reports what the display bar graph is set to, log or lin.
Reports the emission value.
Reports the current manual-mode exponent with a two-character (minus followed by one
digit) number. The exponent is within the least sensitive range (as reported by ?RANGE) and
the three lower (more negative exponent) ranges. See also INIT-EXPONENT.
Reports the currently stored value of the external standard leak.
Reports the system gain value by returning a three-character number consisting of a two-
digit gain factor with a decimal point after the first digit.
Indicates which leak, Internal or External has been selected for use during calibration.
Returns the status: 0 = not installed, 1 = installed
Returns the software revision of the installed I/O PCB
Reports the ion chamber value.
Reports the language that has been selected to display on the front panel (0=English,
1=French, 2=German, 3=Korean, 4=Spanish, 5=Japanese, 6=Chinese or Russian
depending on software version purchased).
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