F-960 Instruction Manual rev. 6/23/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA
52
Phone: (360) 833-8835
sales@felixinstruments.com
www.felixinstruments.com
Guide for Purchasing Standardized Gases
for Calibration
When deciding which standard gases to purchase for
calibration, there are some important considerations that will
help guide your purchase:
1)
Determination of concentration of the gas to be
purchased. The concentration of the standard gas is
the first consideration. It needs to be at a
concentration level that is appropriate for
calibration of the instrument.
2)
Determination of proper regulator for the standard
gas tank. A regulator is needed to provide a
consistent flow of gas to the instrument at a certain
rate. At our facility, we use on-demand regulators
that require the pumps within our instruments to
pull the gas from the standardized tank. If this is not
an option, other regulators are acceptable, just use
a T-junction when connecting to the instrument to
protect the instrument from damage.
3)
Determination of the size of tank to order. Consider
how many calibrations can be performed with the
volume of gas purchased. Each calibration for the F-
920, 940, and 960 will take around 0.3 liters of
standard gas.
Below is an example of a standard order our company would
make to Air Liquide for a 1.5ppm ethylene standardized gas
tank for calibration of the F-940.
