GX-6000 Operator’s Manual Calibrating the 10.0 eV/Benzene PID Sensor • 240
Setting the Fresh Air Reading
See “Setting the Fresh Air Reading” on page 71 for instructions to set the
fresh air reading.
Performing an AUTO CAL
See “Calibrating Using the Auto Calibration Method” on page 71 for
instructions to perform an automatic calibration while keeping the following
in mind:
• Be sure that you are doing a complete calibration as appropriate for your
application and for the calibration gas you have available (see “Important
Calibration Information” on page 239).
• If the 10.0 eV/benzene PID sensor is one of two PID sensors installed in
your instrument, both channels will appear as “VOC”. The channel that
appears first will be based on the following sensor priority. Be sure to
select the correct PID sensor for calibration.
NOTE: If you have changed the factory-set channel assignments using the
CONFIGURE CH menu item in User Mode, the order of displayed
sensors may be different and you will need to remember how you
set your instrument up.
Measuring Mode,
general VOC
detection*
Option 1 AUTO CAL or SINGLE CAL with benzene
Option 2 AUTO CAL or SINGLE CAL with isobutylene (or other
target gas)**
* Even though it is possible to use the 10.0 eV/benzene PID sensor for general VOC detection, RKI Instruments,
Inc. recommends using the low range or high range 10.6 eV sensor instead.
** In order to calibrate to a gas other than benzene or isobutylene, you must select that other gas for the 10.0 eV/
benzene sensor in the PID Gas Name Screen in Display Mode as described in
“PID Gas Name Screen” on page 45. You must also select the appropriate calibration gas during the calibration
procedure.
High Priority
Low Priority
Low range PID
10.0 eV/benzene PID
High range PID
Application Calibration Options
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