F-940 Instruction Manual rev. 11/26/2019
1554 NE 3
rd
Ave, Camas, WA 98607, USA
20
Phone: (360) 833-8835
www.felixinstruments.com
Trigger Mode
A measurement in trigger mode will initiate a
small volume sample taken over several
seconds until the reading is stable. To begin,
use the up and down arrows to set the time, in
minutes, for the Timer Interval. The Timer
Interval allows the instrument to repeatedly
take measurements without user input. For
example, if the interval is set to 30 minutes the
instrument will take one measurement every
30 minutes. After setting the interval, press the
square start button as prompted to measure.
This will turn on the pump before drawing in
sample gas. After the measurement is
complete, purging will flash in the bottom left
hand corner of the display. Trigger mode will
take longer to stabilize if the concentration is in
a different range from the last sample.
Summary of Contents for F-940
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