Fir 1, 2, 3 & 5000
Ion Science Lt d
Ion Science L td
Page 32 of 53
1stPC Software Features
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Lamp
Enables the selection of different lamp types you may have
purchased to use with your instrument.
Application
Enables the selection and de-selection of Health & Safety mode and the selection of ppm, ppb or mg/m
3
. In
Health & Safety mode, STEL and TWA timings can be adjusted to reflect the changes in legislation between
the US and Europe.
The instrument can be set to security mode, which enables the locking of the user interface so that the
instrument functions can not be changed manually. To de-select security mode, switch the instrument OFF
then ON, you then have 2 minutes from 'switch on' to connect your instrument to a PC and select
INSTRUMENT / MENU SET UP. This will automatically place your instrument in PC mode ready for download or
further adjustment. VOC smoothing relates to the PID reading and is used to have a dampening affect on the
measurements for high gain factor gases. In effect, increasing the T90 time to create a smoother graph. This
affect can only be applied when in 'Survey' mode it does not apply in Heath & Safety. Lastly there's the option
of choosing type of readout you get from the instrument with regard to the LEL sensor. %LEL shows the
readout as a percentage of the lower explosive limit whereas %VOL shows the readout as a percentage
volume of the gas in the air.
