PROGRAMMING THE AREARAE
4-39
gas. The AreaRAE calculates the correction factor between
these two gases and converts the measured value of the LEL
sensor into an equivalent concentration of the pentane gas.
Similarly, you can choose one VOC gas for calibration and
another VOC gas for measurement. In addition, the correction
factor is different for the PID sensor due to different energy of
the UV lamp used in the PID sensor. You must choose the
correct type of UV lamp (10.6 eV or 11.7 eV) for the PID
sensor, which is described in Section 4.8.5: Change PID Lamp
Type.
